TY  - JOUR
AU  - Obradović, Milena
AU  - Daković, Aleksandra
AU  - Smiljanić, Danijela
AU  - Marković, Marija
AU  - Ožegović, Milica
AU  - Krstić, Jugoslav
AU  - Vuković, Nikola
AU  - Milojević-Rakić, Maja
PY  - 2024
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1222
AB  - Organobentonites have been applied for the removal of two common non-steroidal anti-inflammatory drugs, ibuprofen (IBU) and diclofenac sodium (DS), from aqueous solutions. Two surfactants, one with and the other without benzyl group (octadecyldimethylbenzylammonium chloride, ODMBA, and hexadecyltrimethylammonium bromide, HDTMA), in amounts equivalent to 50, 75, and 100% of the cation exchange capacity of bentonite were used for the preparation of organobentonites. Successful modification of bentonite was confirmed by several methods: X-ray powder diffraction (XRPD), point of the zero charge (pHPZC), determination of exchanged inorganic cations in bentonite, determination of textural properties, and scanning electron microscopy (SEM). Kinetic and thermodynamic data on the adsorption of IBU and DS showed that drug adsorption was controlled by the type and the amount of surfactant incorporated into the bentonite and by their arrangement in the interlayer space and at the surface of organobentonites. The adsorption of both drugs increased with an increase in the amount of both surfactants in organobentonites. The presence of the benzyl group in organobentonites enhanced the adsorption of IBU and DS and was more pronounced for IBU. Drug adsorption fits the pseudo-second-order kinetic model the best. The thermodynamic data revealed that the adsorption process was endothermic in nature and with increase of the amount of both surfactants drug adsorption processes were more spontaneous. The results obtained from this study revealed that adsorbents based on surfactants modified bentonite are promising candidates for IBU and DS removal from contaminated water.
PB  - MDPI
T2  - Processes
T1  - Bentonite Modified with Surfactants—Efficient Adsorbents for the Removal of Non-Steroidal Anti-Inflammatory Drugs
IS  - 1
SP  - 96
VL  - 12
DO  - 10.3390/pr12010096
ER  - 

@article{
author = "Obradović, Milena and Daković, Aleksandra and Smiljanić, Danijela and Marković, Marija and Ožegović, Milica and Krstić, Jugoslav and Vuković, Nikola and Milojević-Rakić, Maja",
year = "2024",
abstract = "Organobentonites have been applied for the removal of two common non-steroidal anti-inflammatory drugs, ibuprofen (IBU) and diclofenac sodium (DS), from aqueous solutions. Two surfactants, one with and the other without benzyl group (octadecyldimethylbenzylammonium chloride, ODMBA, and hexadecyltrimethylammonium bromide, HDTMA), in amounts equivalent to 50, 75, and 100% of the cation exchange capacity of bentonite were used for the preparation of organobentonites. Successful modification of bentonite was confirmed by several methods: X-ray powder diffraction (XRPD), point of the zero charge (pHPZC), determination of exchanged inorganic cations in bentonite, determination of textural properties, and scanning electron microscopy (SEM). Kinetic and thermodynamic data on the adsorption of IBU and DS showed that drug adsorption was controlled by the type and the amount of surfactant incorporated into the bentonite and by their arrangement in the interlayer space and at the surface of organobentonites. The adsorption of both drugs increased with an increase in the amount of both surfactants in organobentonites. The presence of the benzyl group in organobentonites enhanced the adsorption of IBU and DS and was more pronounced for IBU. Drug adsorption fits the pseudo-second-order kinetic model the best. The thermodynamic data revealed that the adsorption process was endothermic in nature and with increase of the amount of both surfactants drug adsorption processes were more spontaneous. The results obtained from this study revealed that adsorbents based on surfactants modified bentonite are promising candidates for IBU and DS removal from contaminated water.",
publisher = "MDPI",
journal = "Processes",
title = "Bentonite Modified with Surfactants—Efficient Adsorbents for the Removal of Non-Steroidal Anti-Inflammatory Drugs",
number = "1",
pages = "96",
volume = "12",
doi = "10.3390/pr12010096"
}

Obradović, M., Daković, A., Smiljanić, D., Marković, M., Ožegović, M., Krstić, J., Vuković, N.,& Milojević-Rakić, M.. (2024). Bentonite Modified with Surfactants—Efficient Adsorbents for the Removal of Non-Steroidal Anti-Inflammatory Drugs. in Processes
MDPI., 12(1), 96.
https://doi.org/10.3390/pr12010096

Obradović M, Daković A, Smiljanić D, Marković M, Ožegović M, Krstić J, Vuković N, Milojević-Rakić M. Bentonite Modified with Surfactants—Efficient Adsorbents for the Removal of Non-Steroidal Anti-Inflammatory Drugs. in Processes. 2024;12(1):96.
doi:10.3390/pr12010096 .

Obradović, Milena, Daković, Aleksandra, Smiljanić, Danijela, Marković, Marija, Ožegović, Milica, Krstić, Jugoslav, Vuković, Nikola, Milojević-Rakić, Maja, "Bentonite Modified with Surfactants—Efficient Adsorbents for the Removal of Non-Steroidal Anti-Inflammatory Drugs" in Processes, 12, no. 1 (2024):96,
https://doi.org/10.3390/pr12010096 . .

TY  - CONF
AU  - Marković, Marija
AU  - Obradović, Milena
AU  - Smiljanić, Danijela
AU  - Ožegović, Milica
AU  - Daković, Aleksandra
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1006
AB  - Природни минерали, зеолит и бентонит, модификовани са различитим
количинама катјонског сурфактанта, хексадецилтриметиламонијум-бромида су испи-
тивани као адсорбенти за уклањање диклофенака из водених раствора. Адсорбоване
количине диклофенака су расле са порастом количине сурфактанта код органозеолита
као и код органобентонита. Разлике у структури полазних минерала су условиле и
разлике у адсорпцији диклофенака на органозеолиту и органобентониту. Највећа
адсорпција диклофенака је постигнута на органобентониту код кога су сви неоргански
катјони измењени са сурфактантом. Резултати су показали да се органоминерали могу
разматрати као ефикасни адсорбенти за уклањање диклофенака из воде.
AB  - Natural minerals, zeolite and bentonite, modified with different amounts of
cationic surfactant, hexadecyltrimethylammonium bromide, were investigated as adsorbents
for the removal of diclofenac from aqueous solutions. The adsorbed amount of diclofenac
increased with the increasing the amount of surfactant in organozeolite as well as in
organobentonite. Differences in the structure of the starting minerals caused differences in
the adsorption of diclofenac on organozeolite and organobentonite. The highest adsorption
of diclofenac was achieved on organobentonite where all inorganic cations were exchanged
with surfactant. The results showed that organominerals can be considered as effective asorbents for the removal of diclofenac from water.
PB  - Beograd : Savez inženjera i tehničara Srbije
C3  - 44. Međunarodna konferencija Vodovod i kanalizacija '23
T1  - Примена органоминерала за уклањање емергентног загађивача диклофенака
T1  - Application of organominerals for the removal of the emerging contaminant diclofenac
EP  - 235
SP  - 229
ER  - 

@conference{
author = "Marković, Marija and Obradović, Milena and Smiljanić, Danijela and Ožegović, Milica and Daković, Aleksandra",
year = "2023",
abstract = "Природни минерали, зеолит и бентонит, модификовани са различитим
количинама катјонског сурфактанта, хексадецилтриметиламонијум-бромида су испи-
тивани као адсорбенти за уклањање диклофенака из водених раствора. Адсорбоване
количине диклофенака су расле са порастом количине сурфактанта код органозеолита
као и код органобентонита. Разлике у структури полазних минерала су условиле и
разлике у адсорпцији диклофенака на органозеолиту и органобентониту. Највећа
адсорпција диклофенака је постигнута на органобентониту код кога су сви неоргански
катјони измењени са сурфактантом. Резултати су показали да се органоминерали могу
разматрати као ефикасни адсорбенти за уклањање диклофенака из воде., Natural minerals, zeolite and bentonite, modified with different amounts of
cationic surfactant, hexadecyltrimethylammonium bromide, were investigated as adsorbents
for the removal of diclofenac from aqueous solutions. The adsorbed amount of diclofenac
increased with the increasing the amount of surfactant in organozeolite as well as in
organobentonite. Differences in the structure of the starting minerals caused differences in
the adsorption of diclofenac on organozeolite and organobentonite. The highest adsorption
of diclofenac was achieved on organobentonite where all inorganic cations were exchanged
with surfactant. The results showed that organominerals can be considered as effective asorbents for the removal of diclofenac from water.",
publisher = "Beograd : Savez inženjera i tehničara Srbije",
journal = "44. Međunarodna konferencija Vodovod i kanalizacija '23",
title = "Примена органоминерала за уклањање емергентног загађивача диклофенака, Application of organominerals for the removal of the emerging contaminant diclofenac",
pages = "235-229"
}

Marković, M., Obradović, M., Smiljanić, D., Ožegović, M.,& Daković, A.. (2023). Примена органоминерала за уклањање емергентног загађивача диклофенака. in 44. Međunarodna konferencija Vodovod i kanalizacija '23
Beograd : Savez inženjera i tehničara Srbije., 229-235.

Marković M, Obradović M, Smiljanić D, Ožegović M, Daković A. Примена органоминерала за уклањање емергентног загађивача диклофенака. in 44. Međunarodna konferencija Vodovod i kanalizacija '23. 2023;:229-235..

Marković, Marija, Obradović, Milena, Smiljanić, Danijela, Ožegović, Milica, Daković, Aleksandra, "Примена органоминерала за уклањање емергентног загађивача диклофенака" in 44. Međunarodna konferencija Vodovod i kanalizacija '23 (2023):229-235.

TY  - CONF
AU  - Smiljanić, Danijela
AU  - Daković, Aleksandra
AU  - Marković, Marija
AU  - Obradović, Milena
AU  - Ožegović, Milica
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/724
AB  - Površinski modifikovani prirodni zeoliti sa katjonskim surfaktantima su se pokazali kao obećavajući adsorbenti za uklanjanje emergentnih zagađivača - nesteroidnih antiinflamatornih lekova (diklofenak, ibuprofen, naproksen i ketoprofen). Nelinaran oblik adsorpcionih izotermi kao i adsorpcioni kapaciteti (Qmax vrednosti iz Langmirovog modela) poslužili su da se izvedu zaključci o mehanizmu adsorpcije i uticaju izbora polaznog materijala, tipa i količine surfaktanta na adsorpciju odabranih lekova.
PB  - Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina
C3  - 14. Simpozijum „Rudarstvo 2023“ Održivi razvoj u rudarstvu i energetici
T1  - Površinski modifikovani zeoliti - efikasni adsorbenti emergentnih zagađivača
EP  - 36
SP  - 29
ER  - 

@conference{
author = "Smiljanić, Danijela and Daković, Aleksandra and Marković, Marija and Obradović, Milena and Ožegović, Milica",
year = "2023",
abstract = "Površinski modifikovani prirodni zeoliti sa katjonskim surfaktantima su se pokazali kao obećavajući adsorbenti za uklanjanje emergentnih zagađivača - nesteroidnih antiinflamatornih lekova (diklofenak, ibuprofen, naproksen i ketoprofen). Nelinaran oblik adsorpcionih izotermi kao i adsorpcioni kapaciteti (Qmax vrednosti iz Langmirovog modela) poslužili su da se izvedu zaključci o mehanizmu adsorpcije i uticaju izbora polaznog materijala, tipa i količine surfaktanta na adsorpciju odabranih lekova.",
publisher = "Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina",
journal = "14. Simpozijum „Rudarstvo 2023“ Održivi razvoj u rudarstvu i energetici",
title = "Površinski modifikovani zeoliti - efikasni adsorbenti emergentnih zagađivača",
pages = "36-29"
}

Smiljanić, D., Daković, A., Marković, M., Obradović, M.,& Ožegović, M.. (2023). Površinski modifikovani zeoliti - efikasni adsorbenti emergentnih zagađivača. in 14. Simpozijum „Rudarstvo 2023“ Održivi razvoj u rudarstvu i energetici
Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina., 29-36.

Smiljanić D, Daković A, Marković M, Obradović M, Ožegović M. Površinski modifikovani zeoliti - efikasni adsorbenti emergentnih zagađivača. in 14. Simpozijum „Rudarstvo 2023“ Održivi razvoj u rudarstvu i energetici. 2023;:29-36..

Smiljanić, Danijela, Daković, Aleksandra, Marković, Marija, Obradović, Milena, Ožegović, Milica, "Površinski modifikovani zeoliti - efikasni adsorbenti emergentnih zagađivača" in 14. Simpozijum „Rudarstvo 2023“ Održivi razvoj u rudarstvu i energetici (2023):29-36.

TY  - CONF
AU  - Marković, Marija
AU  - Daković, Aleksandra
AU  - Smiljanić, Danijela
AU  - Obradović, Milena
AU  - Ožegović, Milica
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/722
AB  - In this study three bentonite clays (bentonite from deposit Beretnica in Republic of Serbia, commercial bentonite and gray
clay from Šipovo deposit in Bosnia and Herzegovina) were investigated as adsorbents of aflatoxin B1 (AFB1). In a single
in vitro AFB1 adsorption experiment, all three bentonites showed high adsorption efficiency for AFB1 at pH 5. The effect
of adsorbent mass on AFB1 adsorption was also studied, with the same initial AFB1 concentration, at pH 3, and it was
shown that toxin adsorption decreased with decreasing amount of each bentonite in suspension. Thermal analysis was
performed in order to determine the structural differences between investigated bentonites. Results showed that gray clay
was trans-vacant bentonite while other two clays were cis-vacant bentonites. Aflatoxin B1 adsorption experiments, at pH
3, showed that trans-vacant gray bentonite had higher affinity for AFB1 than commercial cis-vacant bentonite. The
highest adsorption was achieved with cis-vacant bentonite from Beretnica deposit.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia
C3  - 5th Metallurgical & Materials Engineering Congress of South-East Europe
T1  - Bentonite clays as aflatoxin B1 adsorbents
EP  - 16
SP  - 12
ER  - 

@conference{
author = "Marković, Marija and Daković, Aleksandra and Smiljanić, Danijela and Obradović, Milena and Ožegović, Milica",
year = "2023",
abstract = "In this study three bentonite clays (bentonite from deposit Beretnica in Republic of Serbia, commercial bentonite and gray
clay from Šipovo deposit in Bosnia and Herzegovina) were investigated as adsorbents of aflatoxin B1 (AFB1). In a single
in vitro AFB1 adsorption experiment, all three bentonites showed high adsorption efficiency for AFB1 at pH 5. The effect
of adsorbent mass on AFB1 adsorption was also studied, with the same initial AFB1 concentration, at pH 3, and it was
shown that toxin adsorption decreased with decreasing amount of each bentonite in suspension. Thermal analysis was
performed in order to determine the structural differences between investigated bentonites. Results showed that gray clay
was trans-vacant bentonite while other two clays were cis-vacant bentonites. Aflatoxin B1 adsorption experiments, at pH
3, showed that trans-vacant gray bentonite had higher affinity for AFB1 than commercial cis-vacant bentonite. The
highest adsorption was achieved with cis-vacant bentonite from Beretnica deposit.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia",
journal = "5th Metallurgical & Materials Engineering Congress of South-East Europe",
title = "Bentonite clays as aflatoxin B1 adsorbents",
pages = "16-12"
}

Marković, M., Daković, A., Smiljanić, D., Obradović, M.,& Ožegović, M.. (2023). Bentonite clays as aflatoxin B1 adsorbents. in 5th Metallurgical & Materials Engineering Congress of South-East Europe
Belgrade : Association of Metallurgical Engineers of Serbia., 12-16.

Marković M, Daković A, Smiljanić D, Obradović M, Ožegović M. Bentonite clays as aflatoxin B1 adsorbents. in 5th Metallurgical & Materials Engineering Congress of South-East Europe. 2023;:12-16..

Marković, Marija, Daković, Aleksandra, Smiljanić, Danijela, Obradović, Milena, Ožegović, Milica, "Bentonite clays as aflatoxin B1 adsorbents" in 5th Metallurgical & Materials Engineering Congress of South-East Europe (2023):12-16.

TY  - CONF
AU  - Smiljanić, Danijela
AU  - Daković, Aleksandra
AU  - Obradović, Milena
AU  - Marković, Marija
AU  - Ožegović, Milica
AU  - Pantić, Milena
AU  - Krajišnik, Danina
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/723
AB  - In this study bentonite was modified with two chitosans, commercial or chitosan synthesized from mushroom. Obtained
products were subsequently treated with hexadecyltrimethyl ammonium bromide in the amount of 50% of the bentonite`s
CEC value. Starting material and all prepared composites were characterized by FTIR-ATR spectroscopy in order to
confirm modification with organic molecules. Adsorption of zearalenone (ZEN) by clay-chitosan composites and claychitosan-surfactant composites was investigated at pH 3. Results showed that adsorption of ZEN was higher for
composites that had both chitosan and surfactant, confirming that surfactant ions are responsible for ZEN adsorption.
Additionally, the effect of adsorbent mass on ZEN adsorption was investigated for clay-chitosan-surfactant composites
(pH 3) and results have shown that adsorption increased with increasing the amount of both composites.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia
C3  - 5th Metallurgical & Materials Engineering Congress of South-East Europe
T1  - Clay-chitosan-surfactant composites as efficient adsorbents of zearalenone
EP  - 376
SP  - 371
ER  - 

@conference{
author = "Smiljanić, Danijela and Daković, Aleksandra and Obradović, Milena and Marković, Marija and Ožegović, Milica and Pantić, Milena and Krajišnik, Danina",
year = "2023",
abstract = "In this study bentonite was modified with two chitosans, commercial or chitosan synthesized from mushroom. Obtained
products were subsequently treated with hexadecyltrimethyl ammonium bromide in the amount of 50% of the bentonite`s
CEC value. Starting material and all prepared composites were characterized by FTIR-ATR spectroscopy in order to
confirm modification with organic molecules. Adsorption of zearalenone (ZEN) by clay-chitosan composites and claychitosan-surfactant composites was investigated at pH 3. Results showed that adsorption of ZEN was higher for
composites that had both chitosan and surfactant, confirming that surfactant ions are responsible for ZEN adsorption.
Additionally, the effect of adsorbent mass on ZEN adsorption was investigated for clay-chitosan-surfactant composites
(pH 3) and results have shown that adsorption increased with increasing the amount of both composites.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia",
journal = "5th Metallurgical & Materials Engineering Congress of South-East Europe",
title = "Clay-chitosan-surfactant composites as efficient adsorbents of zearalenone",
pages = "376-371"
}

Smiljanić, D., Daković, A., Obradović, M., Marković, M., Ožegović, M., Pantić, M.,& Krajišnik, D.. (2023). Clay-chitosan-surfactant composites as efficient adsorbents of zearalenone. in 5th Metallurgical & Materials Engineering Congress of South-East Europe
Belgrade : Association of Metallurgical Engineers of Serbia., 371-376.

Smiljanić D, Daković A, Obradović M, Marković M, Ožegović M, Pantić M, Krajišnik D. Clay-chitosan-surfactant composites as efficient adsorbents of zearalenone. in 5th Metallurgical & Materials Engineering Congress of South-East Europe. 2023;:371-376..

Smiljanić, Danijela, Daković, Aleksandra, Obradović, Milena, Marković, Marija, Ožegović, Milica, Pantić, Milena, Krajišnik, Danina, "Clay-chitosan-surfactant composites as efficient adsorbents of zearalenone" in 5th Metallurgical & Materials Engineering Congress of South-East Europe (2023):371-376.

TY  - CONF
AU  - Smiljanić, Danijela
AU  - Daković, Aleksandra
AU  - Obradović, Milena
AU  - Ožegović, Milica
AU  - Marković, Marija
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1195
AB  - Numerous chemical compounds present in natural waters and wastewater are resistant to
conventional water treatments and persist in treated effluents. Among these substances,
pharmaceuticals, due to their widespread use, raise special concern due to their potentially
harmful effects on human health especially when they reach drinking water. One of the most
efficient technique for removal of pharmaceuticals from polluted water is their adsorption on
various adsorbents, such as activated carbons, clays (kaolin, bentonite, etc.) and zeolites. In
this study, the potential of modified bentonite for removal of carbamazepine, a
pharmaceutical with anticonvulsant and mood-stabilizing properties, was investigated. The
natural bentonite from Šipovo deposit, Bosnia and Herzegovina, was modified with the
cationic surfactant Arquad®2HT-75 in amounts equivalent to 50% and 100% of the
bentonite's cationic exchange capacity. Characterization of prepared samples by Fouriertransform
infrared spectroscopy and Simultaneous Thermal Analysis, confirmed presence of
surfactant in modified bentonites. Results on carbamazepine removal by modified bentonites
showed that its adsorption increased with increasing of the amount of surfactant as well as
with increasing of the initial pharmaceutical concentration. The highest adsorption of
carbamazepine was achieved with bentonite containing the highest amount of surfactant.
Since the natural bentonite has no affinity to remove carbamazepine, these findings suggest
that modified bentonite is a promising adsorbent for its removal from contaminated water.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Twenty-First Young Researchers’ Conference - Materials Science and Engineering
T1  - Bentonite modified with cationic surfactant as promissing adsorbent for carbamazepine
EP  - 20
SP  - 20
ER  - 

@conference{
author = "Smiljanić, Danijela and Daković, Aleksandra and Obradović, Milena and Ožegović, Milica and Marković, Marija",
year = "2023",
abstract = "Numerous chemical compounds present in natural waters and wastewater are resistant to
conventional water treatments and persist in treated effluents. Among these substances,
pharmaceuticals, due to their widespread use, raise special concern due to their potentially
harmful effects on human health especially when they reach drinking water. One of the most
efficient technique for removal of pharmaceuticals from polluted water is their adsorption on
various adsorbents, such as activated carbons, clays (kaolin, bentonite, etc.) and zeolites. In
this study, the potential of modified bentonite for removal of carbamazepine, a
pharmaceutical with anticonvulsant and mood-stabilizing properties, was investigated. The
natural bentonite from Šipovo deposit, Bosnia and Herzegovina, was modified with the
cationic surfactant Arquad®2HT-75 in amounts equivalent to 50% and 100% of the
bentonite's cationic exchange capacity. Characterization of prepared samples by Fouriertransform
infrared spectroscopy and Simultaneous Thermal Analysis, confirmed presence of
surfactant in modified bentonites. Results on carbamazepine removal by modified bentonites
showed that its adsorption increased with increasing of the amount of surfactant as well as
with increasing of the initial pharmaceutical concentration. The highest adsorption of
carbamazepine was achieved with bentonite containing the highest amount of surfactant.
Since the natural bentonite has no affinity to remove carbamazepine, these findings suggest
that modified bentonite is a promising adsorbent for its removal from contaminated water.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Twenty-First Young Researchers’ Conference - Materials Science and Engineering",
title = "Bentonite modified with cationic surfactant as promissing adsorbent for carbamazepine",
pages = "20-20"
}

Smiljanić, D., Daković, A., Obradović, M., Ožegović, M.,& Marković, M.. (2023). Bentonite modified with cationic surfactant as promissing adsorbent for carbamazepine. in Twenty-First Young Researchers’ Conference - Materials Science and Engineering
Belgrade : Institute of Technical Sciences of SASA., 20-20.

Smiljanić D, Daković A, Obradović M, Ožegović M, Marković M. Bentonite modified with cationic surfactant as promissing adsorbent for carbamazepine. in Twenty-First Young Researchers’ Conference - Materials Science and Engineering. 2023;:20-20..

Smiljanić, Danijela, Daković, Aleksandra, Obradović, Milena, Ožegović, Milica, Marković, Marija, "Bentonite modified with cationic surfactant as promissing adsorbent for carbamazepine" in Twenty-First Young Researchers’ Conference - Materials Science and Engineering (2023):20-20.

TY  - CONF
AU  - Milojkov, Dušan
AU  - Sokić, Miroslav
AU  - Mitrović, Angelina
AU  - Smiljanić, Danijela
AU  - Petrović, Jelena
AU  - Simić, Marija
AU  - Živković-Radovanović, Vukosava
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/988
AB  - The accumulation of mine tailings in the mining area of Majdanpek represents a serious environmental problem. A strong impetus for the development of sustainable methods for the recovery of metals from mine tailings is given by the importance of heavy metal recovery and the economic benefits of precious and base metals. Currently, researchers are working to develop metals recovery from tailings through bioleaching, which is a more sustainable method compared to traditional metallurgical methods. Biotechnologies for leaching heavy metals from old flotation tailings (Majdanpek, Serbia) with fungus Aspergillus niger (A. niger) are discussed in this paper. The subject of this research is iron ions, since the tailings are the richest in this metal. With a simple bioleaching process, which is based on the cultivation of A. niger in the basic growth medium and then challenging it with tailings, 5% iron was released in 35 days. The transformation of mine tailings morphology was also confirmed by optical microscopy. Processes by which A. niger extracts metals from
tailings include acidolysis, complexation, alkaloysis and biosorption. Also, in addition to metabolites, these fungi produce spores and mycelium that can destroy material and transform it to the soil. Given that Serbia is abundant with agricultural
waste, as well as waste from the food industry, in future studies cheap waste should be used as an energy input source for A. niger and transformation of tailings.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia
C3  - 5th Metallurgical & Materials Engineering Congress of South-East Europe
T1  - Development of sustainable method for metal recovery from old flotation tailings (Majdanpek, Serbia) using Aspergillus niger fungus
EP  - 330
SP  - 325
ER  - 

@conference{
author = "Milojkov, Dušan and Sokić, Miroslav and Mitrović, Angelina and Smiljanić, Danijela and Petrović, Jelena and Simić, Marija and Živković-Radovanović, Vukosava",
year = "2023",
abstract = "The accumulation of mine tailings in the mining area of Majdanpek represents a serious environmental problem. A strong impetus for the development of sustainable methods for the recovery of metals from mine tailings is given by the importance of heavy metal recovery and the economic benefits of precious and base metals. Currently, researchers are working to develop metals recovery from tailings through bioleaching, which is a more sustainable method compared to traditional metallurgical methods. Biotechnologies for leaching heavy metals from old flotation tailings (Majdanpek, Serbia) with fungus Aspergillus niger (A. niger) are discussed in this paper. The subject of this research is iron ions, since the tailings are the richest in this metal. With a simple bioleaching process, which is based on the cultivation of A. niger in the basic growth medium and then challenging it with tailings, 5% iron was released in 35 days. The transformation of mine tailings morphology was also confirmed by optical microscopy. Processes by which A. niger extracts metals from
tailings include acidolysis, complexation, alkaloysis and biosorption. Also, in addition to metabolites, these fungi produce spores and mycelium that can destroy material and transform it to the soil. Given that Serbia is abundant with agricultural
waste, as well as waste from the food industry, in future studies cheap waste should be used as an energy input source for A. niger and transformation of tailings.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia",
journal = "5th Metallurgical & Materials Engineering Congress of South-East Europe",
title = "Development of sustainable method for metal recovery from old flotation tailings (Majdanpek, Serbia) using Aspergillus niger fungus",
pages = "330-325"
}

Milojkov, D., Sokić, M., Mitrović, A., Smiljanić, D., Petrović, J., Simić, M.,& Živković-Radovanović, V.. (2023). Development of sustainable method for metal recovery from old flotation tailings (Majdanpek, Serbia) using Aspergillus niger fungus. in 5th Metallurgical & Materials Engineering Congress of South-East Europe
Belgrade : Association of Metallurgical Engineers of Serbia., 325-330.

Milojkov D, Sokić M, Mitrović A, Smiljanić D, Petrović J, Simić M, Živković-Radovanović V. Development of sustainable method for metal recovery from old flotation tailings (Majdanpek, Serbia) using Aspergillus niger fungus. in 5th Metallurgical & Materials Engineering Congress of South-East Europe. 2023;:325-330..

Milojkov, Dušan, Sokić, Miroslav, Mitrović, Angelina, Smiljanić, Danijela, Petrović, Jelena, Simić, Marija, Živković-Radovanović, Vukosava, "Development of sustainable method for metal recovery from old flotation tailings (Majdanpek, Serbia) using Aspergillus niger fungus" in 5th Metallurgical & Materials Engineering Congress of South-East Europe (2023):325-330.

TY  - CONF
AU  - Antanasković, Anja
AU  - Lopičić, Zorica
AU  - Adamović, Vladimir
AU  - Šoštarić, Tatjana
AU  - Smiljanić, Danijela
AU  - Milivojević, Milan
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/886
AB  - In this study, the use of low-cost, widely available waste biomass of sour cherry stone (CS) was
used for the production of biochar (CSB), and used as an alternative to the expensive removal
techniques for removing toxic dye Brilliant green (BG) from wastewater. Produced CSB was
characterized using Fourier Transform Infrared spectroscopy with attenuated total reflectance
(FTIR-ATR) and Thermogravimetric method (TG-DTG). FTIR-ATR results indicated the
evolution of aromatic functional groups replacing aliphatic groups of CS. The effects of various
operational parameters (pH, contact time, initial dye concentration, adsorbent dosage and
temperature) were investigated and optimal conditions were determined. According to the results,
optimized parameters were: pH 6, contact time of 120 min, initial dye concentration of 50 mg/L,
adsorbent dosage of 2 g/L, and temperature of 35 ℃. These parameters were used for kinetic and
isothermal investigations. The adsorption of BG was evaluated using two kinetic reaction models
(pseudo-first-order and pseudo-second-order). The results showed that the pseudo-second-order
model fitted better the experimental data, indicating chemisorption involving valence forces
through the exchange of electrons between the dye and CSB. According to the adsorption isotherm
analysis, the Langmuir isotherm model better fits experimental data than the Freundlich and Sips
models. The maximum monolayer adsorption capacity of BG on CSB was found to be 109.25
mg/g. The RL value (0.392) verifies that the BG adsorption on CBS is a feasible process. Using
CS as a raw material for biochar production, the problem of waste disposal, its decomposition and
secondary pollution might be solved. In the same time, this waste materials would gain not only
ecological but also significant economic value. These findings demonstrated that CSB, which is
made from waste biomass, can be used as a promising and affordable adsorbent for removing dyes
from aqueous solution.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Twenty fourth annual conference-YUCOMAT 2023
T1  - Removal of toxic dye by eco-friendly biochar derived from sour cherry stone
EP  - 97
SP  - 97
ER  - 

@conference{
author = "Antanasković, Anja and Lopičić, Zorica and Adamović, Vladimir and Šoštarić, Tatjana and Smiljanić, Danijela and Milivojević, Milan",
year = "2023",
abstract = "In this study, the use of low-cost, widely available waste biomass of sour cherry stone (CS) was
used for the production of biochar (CSB), and used as an alternative to the expensive removal
techniques for removing toxic dye Brilliant green (BG) from wastewater. Produced CSB was
characterized using Fourier Transform Infrared spectroscopy with attenuated total reflectance
(FTIR-ATR) and Thermogravimetric method (TG-DTG). FTIR-ATR results indicated the
evolution of aromatic functional groups replacing aliphatic groups of CS. The effects of various
operational parameters (pH, contact time, initial dye concentration, adsorbent dosage and
temperature) were investigated and optimal conditions were determined. According to the results,
optimized parameters were: pH 6, contact time of 120 min, initial dye concentration of 50 mg/L,
adsorbent dosage of 2 g/L, and temperature of 35 ℃. These parameters were used for kinetic and
isothermal investigations. The adsorption of BG was evaluated using two kinetic reaction models
(pseudo-first-order and pseudo-second-order). The results showed that the pseudo-second-order
model fitted better the experimental data, indicating chemisorption involving valence forces
through the exchange of electrons between the dye and CSB. According to the adsorption isotherm
analysis, the Langmuir isotherm model better fits experimental data than the Freundlich and Sips
models. The maximum monolayer adsorption capacity of BG on CSB was found to be 109.25
mg/g. The RL value (0.392) verifies that the BG adsorption on CBS is a feasible process. Using
CS as a raw material for biochar production, the problem of waste disposal, its decomposition and
secondary pollution might be solved. In the same time, this waste materials would gain not only
ecological but also significant economic value. These findings demonstrated that CSB, which is
made from waste biomass, can be used as a promising and affordable adsorbent for removing dyes
from aqueous solution.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Twenty fourth annual conference-YUCOMAT 2023",
title = "Removal of toxic dye by eco-friendly biochar derived from sour cherry stone",
pages = "97-97"
}

Antanasković, A., Lopičić, Z., Adamović, V., Šoštarić, T., Smiljanić, D.,& Milivojević, M.. (2023). Removal of toxic dye by eco-friendly biochar derived from sour cherry stone. in Twenty fourth annual conference-YUCOMAT 2023
Belgrade : Materials Research Society of Serbia., 97-97.

Antanasković A, Lopičić Z, Adamović V, Šoštarić T, Smiljanić D, Milivojević M. Removal of toxic dye by eco-friendly biochar derived from sour cherry stone. in Twenty fourth annual conference-YUCOMAT 2023. 2023;:97-97..

Antanasković, Anja, Lopičić, Zorica, Adamović, Vladimir, Šoštarić, Tatjana, Smiljanić, Danijela, Milivojević, Milan, "Removal of toxic dye by eco-friendly biochar derived from sour cherry stone" in Twenty fourth annual conference-YUCOMAT 2023 (2023):97-97.

TY  - CONF
AU  - Krajišnik, Danina
AU  - Uskoković-Marković, Snežana
AU  - Daković, Aleksandra
AU  - Smiljanić, Danijela
AU  - Kozarski, Maja
AU  - Lazić, Vesna
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/721
AB  - In this study, the preparation and characterization of chitosan–clay composites as potential carriers for tetracycline were performed. The composites based on bentonite (from the deposit of Beretnica, Republic of Serbia) and chitosan were prepared. Two types of chitosan were used for the preparation of the composites: commercial low molecular weight chitosan and chitosan isolated from fruit bodies of the commercially grown mushroom Agaricus bisporus. Adsorption of tetracycline hydrochloride onto natural clay and chitosan-clay composites from aqueous media (pH 3.4) was studied. The amounts of adsorbed antibiotic were determined spectrophotometrically from the difference between the initial concentrations of tetracycline and the amounts remaining in the aqueous medium after dynamic equilibrium. Characterization of the natural clay and chitosan-clay composites before and after adsorption of tetracycline was performed by zeta potential measurements. Adsorption of tetracycline followed a nonlinear isotherm for the natural clay and composites. The Langmuir equation showed the best fit of the equilibrium adsorption data over the entire concentration range (0.05 – 1 mg/mL) and themaximum adsorbed amount of the drug on the natural clay and both chitosan-clay composites was up to ~ 200 mg/g. Only minor differences in the adsorption of the drug were observed between the composites containing commercial chitosan and the chitosan isolated from mushrooms. The observed decrease in zeta potentials of the drug chitosan–clay complexes revealed the interactions of the composite surface with tetracycline molecules. The obtained results indicate the potential of the chitosan-clay composites for the development of therapeutic systems for topical application and suggest the possibility of using fungi as a renewable source of chitosan.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia
C3  - 5th Metallurgical & Materials Engineering Congress of South-East Europe
T1  - Preparation and characterization of chitosan–clay composites as potential drug carriers
EP  - 127
SP  - 123
ER  - 

@conference{
author = "Krajišnik, Danina and Uskoković-Marković, Snežana and Daković, Aleksandra and Smiljanić, Danijela and Kozarski, Maja and Lazić, Vesna",
year = "2023",
abstract = "In this study, the preparation and characterization of chitosan–clay composites as potential carriers for tetracycline were performed. The composites based on bentonite (from the deposit of Beretnica, Republic of Serbia) and chitosan were prepared. Two types of chitosan were used for the preparation of the composites: commercial low molecular weight chitosan and chitosan isolated from fruit bodies of the commercially grown mushroom Agaricus bisporus. Adsorption of tetracycline hydrochloride onto natural clay and chitosan-clay composites from aqueous media (pH 3.4) was studied. The amounts of adsorbed antibiotic were determined spectrophotometrically from the difference between the initial concentrations of tetracycline and the amounts remaining in the aqueous medium after dynamic equilibrium. Characterization of the natural clay and chitosan-clay composites before and after adsorption of tetracycline was performed by zeta potential measurements. Adsorption of tetracycline followed a nonlinear isotherm for the natural clay and composites. The Langmuir equation showed the best fit of the equilibrium adsorption data over the entire concentration range (0.05 – 1 mg/mL) and themaximum adsorbed amount of the drug on the natural clay and both chitosan-clay composites was up to ~ 200 mg/g. Only minor differences in the adsorption of the drug were observed between the composites containing commercial chitosan and the chitosan isolated from mushrooms. The observed decrease in zeta potentials of the drug chitosan–clay complexes revealed the interactions of the composite surface with tetracycline molecules. The obtained results indicate the potential of the chitosan-clay composites for the development of therapeutic systems for topical application and suggest the possibility of using fungi as a renewable source of chitosan.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia",
journal = "5th Metallurgical & Materials Engineering Congress of South-East Europe",
title = "Preparation and characterization of chitosan–clay composites as potential drug carriers",
pages = "127-123"
}

Krajišnik, D., Uskoković-Marković, S., Daković, A., Smiljanić, D., Kozarski, M.,& Lazić, V.. (2023). Preparation and characterization of chitosan–clay composites as potential drug carriers. in 5th Metallurgical & Materials Engineering Congress of South-East Europe
Belgrade : Association of Metallurgical Engineers of Serbia., 123-127.

Krajišnik D, Uskoković-Marković S, Daković A, Smiljanić D, Kozarski M, Lazić V. Preparation and characterization of chitosan–clay composites as potential drug carriers. in 5th Metallurgical & Materials Engineering Congress of South-East Europe. 2023;:123-127..

Krajišnik, Danina, Uskoković-Marković, Snežana, Daković, Aleksandra, Smiljanić, Danijela, Kozarski, Maja, Lazić, Vesna, "Preparation and characterization of chitosan–clay composites as potential drug carriers" in 5th Metallurgical & Materials Engineering Congress of South-East Europe (2023):123-127.

TY  - JOUR
AU  - Milojkov, Dušan
AU  - Mitrović, Angelina
AU  - Smiljanić, Danijela
AU  - Jovanović, Gvozden
AU  - Sokić, Miroslav
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/651
AB  - Naučnici su otkrili plastiku ranih 1900-ih, ali nisu shvatili kakve štetne efekte njena fragmentacija može imati na životnu sredinu 100 godina kasnije. Konkretno, čestice nanoplastike (NP) veličine od 1 do 100 nm mogu izazvati velike probleme u živom svetu zbog svoje velike specifične površine za adsorpciju drugih zagađujućih materija iz vode i njihove dalje bioakumulacije kroz lanac ishrane. Ne postoji poseban metod za identifikaciju, karakterizaciju i kvantifikaciju nanoplastike u vodenoj sredini. Iako mnoge metode razvijene za proučavanje mikroplastike nisu direktno primenljive na nanoplastiku, konvencionalne metode karakterizacije nanoplastike su obično zamorne jer proučavaju pojedinačne nanočestice u izolaciji. Pošto nanoplastika koja je rezultat razgradnje mikroplastike ima drugačija svojstva od sintetisanih plastičnih nanočestica, potrebno je razviti nove tehnike koje će nam pomoći da bolje razumemo ozbiljnost problema nanoplastike. Nanoplastika se može izolovati iz vodenog okruženja kombinacijom filtera i ultracentrifugiranja. U novijim publikacijama se navodi da će kombinovanje mikroskopije i spektroskopije, uz podršku hemometrijskih tehnika, omogućiti bolje razumevanje ponašanja čestica nanoplastike u životnoj sredini i organizmima. Velike nade se polažu u mikroskopiju u kombinaciji sa neuronskim mrežama za kvantifikaciju i karakterizaciju nanoplastike u složenim sistemima. Ovaj rad opisuje puteve degradacije plastike i formiranje nanoplastike u vodenim sredinama, kao i moguće metode za odvajanje i karakterizaciju nanoplastike u odnosu na nedavne publikacije.
AB  - Scientists discovered plastic in the early 1900s, but didn't realize the detrimental effects its fragmentation could have on the environment 100 years later. In particular, nanoplastics (NPs) particles ranging in size from 1 to 100 nm can cause major problems in the living world due to their high specific surface area for the adsorption other polluting substances from water, and their further bioaccumulation through the food chain. There is no distinctive method to identify, characterize, and quantify nanoplastics in aquatic environments. Although many of the methods developed to study microplastics are not directly applicable to nanoplastics, conventional methods of characterizing nanoplastics are usually tedious because they study individual nanoparticles in isolation. Since nanoplastics resulting from the decomposition of microplastics have different properties than engineering plastic nanoparticles, new techniques need to be developed to help us better understand the seriousness of the nanoplastic problem. Nanoplastic can be isolated from the water environment by a combination of filters and ultracentrifugation. A recent publications states that combining microscopy and spectroscopy, supported by chemometric techniques, will alow a better understand he behavior of nanoplastic particles in the environment and organisms. High hopes are placed on microscopies combined with neural networks for the quantification and characterization of nanoplastics in complex systems. This article describes the degradation pathways of plastics and the formation of nanoplastics in aquatic environments, and possible methods for separation and characterization of nanoplastics in relation to recent publications.
PB  - Beograd : Savez inženjera i tehničara Srbije
T2  - Tehnika
T1  - Nanoplastika u vodenoj sredini - poreklo, separacija i karakterizacija - pregled
T1  - Nanoplastics in aquatic environments: Origin, separation and characterization: Review
EP  - 108
IS  - 1
SP  - 103
VL  - 78
DO  - 10.5937/tehnika2301103M
UR  - conv_39
ER  - 

@article{
author = "Milojkov, Dušan and Mitrović, Angelina and Smiljanić, Danijela and Jovanović, Gvozden and Sokić, Miroslav",
year = "2023",
abstract = "Naučnici su otkrili plastiku ranih 1900-ih, ali nisu shvatili kakve štetne efekte njena fragmentacija može imati na životnu sredinu 100 godina kasnije. Konkretno, čestice nanoplastike (NP) veličine od 1 do 100 nm mogu izazvati velike probleme u živom svetu zbog svoje velike specifične površine za adsorpciju drugih zagađujućih materija iz vode i njihove dalje bioakumulacije kroz lanac ishrane. Ne postoji poseban metod za identifikaciju, karakterizaciju i kvantifikaciju nanoplastike u vodenoj sredini. Iako mnoge metode razvijene za proučavanje mikroplastike nisu direktno primenljive na nanoplastiku, konvencionalne metode karakterizacije nanoplastike su obično zamorne jer proučavaju pojedinačne nanočestice u izolaciji. Pošto nanoplastika koja je rezultat razgradnje mikroplastike ima drugačija svojstva od sintetisanih plastičnih nanočestica, potrebno je razviti nove tehnike koje će nam pomoći da bolje razumemo ozbiljnost problema nanoplastike. Nanoplastika se može izolovati iz vodenog okruženja kombinacijom filtera i ultracentrifugiranja. U novijim publikacijama se navodi da će kombinovanje mikroskopije i spektroskopije, uz podršku hemometrijskih tehnika, omogućiti bolje razumevanje ponašanja čestica nanoplastike u životnoj sredini i organizmima. Velike nade se polažu u mikroskopiju u kombinaciji sa neuronskim mrežama za kvantifikaciju i karakterizaciju nanoplastike u složenim sistemima. Ovaj rad opisuje puteve degradacije plastike i formiranje nanoplastike u vodenim sredinama, kao i moguće metode za odvajanje i karakterizaciju nanoplastike u odnosu na nedavne publikacije., Scientists discovered plastic in the early 1900s, but didn't realize the detrimental effects its fragmentation could have on the environment 100 years later. In particular, nanoplastics (NPs) particles ranging in size from 1 to 100 nm can cause major problems in the living world due to their high specific surface area for the adsorption other polluting substances from water, and their further bioaccumulation through the food chain. There is no distinctive method to identify, characterize, and quantify nanoplastics in aquatic environments. Although many of the methods developed to study microplastics are not directly applicable to nanoplastics, conventional methods of characterizing nanoplastics are usually tedious because they study individual nanoparticles in isolation. Since nanoplastics resulting from the decomposition of microplastics have different properties than engineering plastic nanoparticles, new techniques need to be developed to help us better understand the seriousness of the nanoplastic problem. Nanoplastic can be isolated from the water environment by a combination of filters and ultracentrifugation. A recent publications states that combining microscopy and spectroscopy, supported by chemometric techniques, will alow a better understand he behavior of nanoplastic particles in the environment and organisms. High hopes are placed on microscopies combined with neural networks for the quantification and characterization of nanoplastics in complex systems. This article describes the degradation pathways of plastics and the formation of nanoplastics in aquatic environments, and possible methods for separation and characterization of nanoplastics in relation to recent publications.",
publisher = "Beograd : Savez inženjera i tehničara Srbije",
journal = "Tehnika",
title = "Nanoplastika u vodenoj sredini - poreklo, separacija i karakterizacija - pregled, Nanoplastics in aquatic environments: Origin, separation and characterization: Review",
pages = "108-103",
number = "1",
volume = "78",
doi = "10.5937/tehnika2301103M",
url = "conv_39"
}

Milojkov, D., Mitrović, A., Smiljanić, D., Jovanović, G.,& Sokić, M.. (2023). Nanoplastika u vodenoj sredini - poreklo, separacija i karakterizacija - pregled. in Tehnika
Beograd : Savez inženjera i tehničara Srbije., 78(1), 103-108.
https://doi.org/10.5937/tehnika2301103M
conv_39

Milojkov D, Mitrović A, Smiljanić D, Jovanović G, Sokić M. Nanoplastika u vodenoj sredini - poreklo, separacija i karakterizacija - pregled. in Tehnika. 2023;78(1):103-108.
doi:10.5937/tehnika2301103M
conv_39 .

Milojkov, Dušan, Mitrović, Angelina, Smiljanić, Danijela, Jovanović, Gvozden, Sokić, Miroslav, "Nanoplastika u vodenoj sredini - poreklo, separacija i karakterizacija - pregled" in Tehnika, 78, no. 1 (2023):103-108,
https://doi.org/10.5937/tehnika2301103M .,
conv_39 .

TY  - JOUR
AU  - Smiljanić, Danijela
AU  - Daković, Aleksandra
AU  - Obradović, Milena
AU  - Ožegović, Milica
AU  - Marković, Marija
AU  - Rottinghaus, George E.
AU  - de Gennaro, Bruno
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/648
AB  - Modified phillipsite samples were prepared with two different amounts (monolayer and bilayer coverage) of surfactants octadecyldimethylbenzylammonium chloride (O) and dodecylamine (D). Composites were characterized by Fourier transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR), thermal analysis and determination of zeta potential, and subsequently tested for removal of diclofenac sodium (DCF). Drug adsorption experiments were performed under different initial DCF concentrations and different contact times. In order to investigate the influence of the chemical structure of surfactants used for modification of phillipsite on the preparation and properties of composites and DCF adsorption, experimental data were compared with previously published results on DCF adsorption by composites containing phillipsite and the same amounts of surfactants cetylpyridinium chloride (C) and Arquad((R))2HT-75 (A). DCF adsorption isotherms for O and D composites showed a better fit with the Langmuir model with maximum adsorption capacities between 12.3 and 38.4 mg/g and are similar to those for C and A composites, while kinetics run followed a pseudo-second-order model. Composites containing either benzyl or pyridine functional groups showed higher adsorption of DCF, implying that surfactant structure has a significant impact on drug adsorption. Drug adsorption onto O, D, C and A composites was also confirmed by FTIR-ATR spectroscopy and zeta potential measurements.
PB  - Basel : MDPI
T2  - Catalysts
T1  - Influence of the Type and the Amount of Surfactant in Phillipsite on Adsorption of Diclofenac Sodium
IS  - 1
VL  - 13
DO  - 10.3390/catal13010071
UR  - conv_963
ER  - 

@article{
author = "Smiljanić, Danijela and Daković, Aleksandra and Obradović, Milena and Ožegović, Milica and Marković, Marija and Rottinghaus, George E. and de Gennaro, Bruno",
year = "2023",
abstract = "Modified phillipsite samples were prepared with two different amounts (monolayer and bilayer coverage) of surfactants octadecyldimethylbenzylammonium chloride (O) and dodecylamine (D). Composites were characterized by Fourier transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR), thermal analysis and determination of zeta potential, and subsequently tested for removal of diclofenac sodium (DCF). Drug adsorption experiments were performed under different initial DCF concentrations and different contact times. In order to investigate the influence of the chemical structure of surfactants used for modification of phillipsite on the preparation and properties of composites and DCF adsorption, experimental data were compared with previously published results on DCF adsorption by composites containing phillipsite and the same amounts of surfactants cetylpyridinium chloride (C) and Arquad((R))2HT-75 (A). DCF adsorption isotherms for O and D composites showed a better fit with the Langmuir model with maximum adsorption capacities between 12.3 and 38.4 mg/g and are similar to those for C and A composites, while kinetics run followed a pseudo-second-order model. Composites containing either benzyl or pyridine functional groups showed higher adsorption of DCF, implying that surfactant structure has a significant impact on drug adsorption. Drug adsorption onto O, D, C and A composites was also confirmed by FTIR-ATR spectroscopy and zeta potential measurements.",
publisher = "Basel : MDPI",
journal = "Catalysts",
title = "Influence of the Type and the Amount of Surfactant in Phillipsite on Adsorption of Diclofenac Sodium",
number = "1",
volume = "13",
doi = "10.3390/catal13010071",
url = "conv_963"
}

Smiljanić, D., Daković, A., Obradović, M., Ožegović, M., Marković, M., Rottinghaus, G. E.,& de Gennaro, B.. (2023). Influence of the Type and the Amount of Surfactant in Phillipsite on Adsorption of Diclofenac Sodium. in Catalysts
Basel : MDPI., 13(1).
https://doi.org/10.3390/catal13010071
conv_963

Smiljanić D, Daković A, Obradović M, Ožegović M, Marković M, Rottinghaus GE, de Gennaro B. Influence of the Type and the Amount of Surfactant in Phillipsite on Adsorption of Diclofenac Sodium. in Catalysts. 2023;13(1).
doi:10.3390/catal13010071
conv_963 .

Smiljanić, Danijela, Daković, Aleksandra, Obradović, Milena, Ožegović, Milica, Marković, Marija, Rottinghaus, George E., de Gennaro, Bruno, "Influence of the Type and the Amount of Surfactant in Phillipsite on Adsorption of Diclofenac Sodium" in Catalysts, 13, no. 1 (2023),
https://doi.org/10.3390/catal13010071 .,
conv_963 .

TY  - CONF
AU  - Mitrović, Angelina
AU  - Prokić, Danijela
AU  - Lukić, Jelena
AU  - Milojkov, Dušan
AU  - Smiljanić, Danijela
AU  - Đurkić, Tatjana
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/725
AB  - Unappropriated disposing of unused drugs leads to an increase in their concentration in the
environment. Furthermore, wastewater treatment plants are not sufficient to prevent the
transport of drugs. Microplastics (MPs), which are also recognized as important pollutants,
can be divided into primary and secondary. The primary MPs are produced for commercial
purposes, while the secondary MPs are formed by the decomposition of plastic residues.
The hydrophobic nature and large specific surface area of MPs facilitate pollutants
binding. Animals misunderstand MPs for food and consume it, which could have harmful
health impacts because both MPs and adsorbed pollutants are ingested. In this paper, the
adsorption of the selected drugs - azithromycin, carbamazepine, sulfamethoxazole, and
diclofenac on low-density polyethylene (LDPE), polyamide (PA), and poly(ethylene
terephthalate) (PET) microplastics are presented. The experiment showed that drugs bind
best to PA and that azithromycin has the highest binding affinity.
AB  - Neadekvatno odlaganje neiskorišćenih lekova dovodi do povećanja njihove koncentracije u životnoj sredini. Pored toga, postrojenja za prečišćavanje otpadnih voda nisu dovoljna barijera za sprečavanje transporta lekova. Mikroplastika (MP), koja je takođe detektovana kao bitan polutant, može se podeliti na primarnu i sekundarnu. Primarna se proizvodi za komercijalne svrhe, a sekundarna nastaje razgradnjom plastičnih ostataka. Hidrofobna priroda i velika specifična površina MP olakšava adsorpciju polutanata na ove materijale.
Životinje mešaju MP sa hranom i unose je u svoj organizam, što može imati negativni uticaj na njihovo zdravlje, jer se tako unose i MP i adsorbovani polutanti. U ovom radu je prikazana adsorpcija odabranih lekova - azitromicina, karbamazepina, sulfametoksazola i diklofenaka na sledećim vrstama mikroplastike - polietilenu niske gustine (LDPE), poliamidu (PA) i poli(etilen tereftalatu) (PET). Eksperiment je pokazao da se lekovi najbolje vezuju za PA, kao i da azitromicin ima najveći afinitet vezivanja.
PB  - Belgrade : Serbian Chemical Society
C3  - 58. SAVETOVANJE SRPSKOG HEMIJSKOG DRUŠTVA, KRATKI IZVODI RADOVA/KNJIGA RADOVA
T1  - Adsorption of selected pharmaceuticals on LDPE, PA, and PET microplastics
T1  - Adsorpcija odabranih lekova na LDPE, PA i PET mikroplastici
EP  - 225
SP  - 222
ER  - 

@conference{
author = "Mitrović, Angelina and Prokić, Danijela and Lukić, Jelena and Milojkov, Dušan and Smiljanić, Danijela and Đurkić, Tatjana",
year = "2022",
abstract = "Unappropriated disposing of unused drugs leads to an increase in their concentration in the
environment. Furthermore, wastewater treatment plants are not sufficient to prevent the
transport of drugs. Microplastics (MPs), which are also recognized as important pollutants,
can be divided into primary and secondary. The primary MPs are produced for commercial
purposes, while the secondary MPs are formed by the decomposition of plastic residues.
The hydrophobic nature and large specific surface area of MPs facilitate pollutants
binding. Animals misunderstand MPs for food and consume it, which could have harmful
health impacts because both MPs and adsorbed pollutants are ingested. In this paper, the
adsorption of the selected drugs - azithromycin, carbamazepine, sulfamethoxazole, and
diclofenac on low-density polyethylene (LDPE), polyamide (PA), and poly(ethylene
terephthalate) (PET) microplastics are presented. The experiment showed that drugs bind
best to PA and that azithromycin has the highest binding affinity., Neadekvatno odlaganje neiskorišćenih lekova dovodi do povećanja njihove koncentracije u životnoj sredini. Pored toga, postrojenja za prečišćavanje otpadnih voda nisu dovoljna barijera za sprečavanje transporta lekova. Mikroplastika (MP), koja je takođe detektovana kao bitan polutant, može se podeliti na primarnu i sekundarnu. Primarna se proizvodi za komercijalne svrhe, a sekundarna nastaje razgradnjom plastičnih ostataka. Hidrofobna priroda i velika specifična površina MP olakšava adsorpciju polutanata na ove materijale.
Životinje mešaju MP sa hranom i unose je u svoj organizam, što može imati negativni uticaj na njihovo zdravlje, jer se tako unose i MP i adsorbovani polutanti. U ovom radu je prikazana adsorpcija odabranih lekova - azitromicina, karbamazepina, sulfametoksazola i diklofenaka na sledećim vrstama mikroplastike - polietilenu niske gustine (LDPE), poliamidu (PA) i poli(etilen tereftalatu) (PET). Eksperiment je pokazao da se lekovi najbolje vezuju za PA, kao i da azitromicin ima najveći afinitet vezivanja.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "58. SAVETOVANJE SRPSKOG HEMIJSKOG DRUŠTVA, KRATKI IZVODI RADOVA/KNJIGA RADOVA",
title = "Adsorption of selected pharmaceuticals on LDPE, PA, and PET microplastics, Adsorpcija odabranih lekova na LDPE, PA i PET mikroplastici",
pages = "225-222"
}

Mitrović, A., Prokić, D., Lukić, J., Milojkov, D., Smiljanić, D.,& Đurkić, T.. (2022). Adsorption of selected pharmaceuticals on LDPE, PA, and PET microplastics. in 58. SAVETOVANJE SRPSKOG HEMIJSKOG DRUŠTVA, KRATKI IZVODI RADOVA/KNJIGA RADOVA
Belgrade : Serbian Chemical Society., 222-225.

Mitrović A, Prokić D, Lukić J, Milojkov D, Smiljanić D, Đurkić T. Adsorption of selected pharmaceuticals on LDPE, PA, and PET microplastics. in 58. SAVETOVANJE SRPSKOG HEMIJSKOG DRUŠTVA, KRATKI IZVODI RADOVA/KNJIGA RADOVA. 2022;:222-225..

Mitrović, Angelina, Prokić, Danijela, Lukić, Jelena, Milojkov, Dušan, Smiljanić, Danijela, Đurkić, Tatjana, "Adsorption of selected pharmaceuticals on LDPE, PA, and PET microplastics" in 58. SAVETOVANJE SRPSKOG HEMIJSKOG DRUŠTVA, KRATKI IZVODI RADOVA/KNJIGA RADOVA (2022):222-225.

TY  - CONF
AU  - Milojkov, Dušan
AU  - Mitrović, Angelina
AU  - Smiljanić, Danijela
AU  - Jovanović, Gvozden
AU  - Sokić, Miroslav
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/989
AB  - Zagađenje vodenih resursa mikro- i nano-plastikom je prepoznato kao globalni problem. Trenutno ne postoje dostupne specifične metode za identifikaciju, karakterizaciju i kvantifikaciju nanoplastike u vodenim sredinama. Mnoge od metodologija razvijenih za analizu mikroplastike ne mogu se direktno primeniti na nanoplastiku, dok konvencionalne
metode karakterizacije nanoplastike obično izoluju i proučavaju pojedinačne nanočestice, što može biti naporan i dugotrajan proces. Korišćenjem mikroskopskih tehnika u kombinaciji sa spektroskopijom, moguće je ubrzati proces analize, ispitati morfologiju i veličinu čestica i istovremeno identifikovati hemiju. Pošto nanoplastika nastala degradacijom mikroplastike
ima drugačija svojstva od sintetisanih nanočestica plastike, neophodno je kreirati nove analitičke i mikroskopske tehnike koje će pomoći da se bolje razume ozbiljnost problema nanoplastike. Ovaj rad ima za cilj da identifikuje metode koje bi mogle da se primene za odvajanje i karakterizaciju nanoplastike iz vodenih sredina.
AB  - Pollution of water resources with micro- and nanoplastics is recognized as a global problem. Currently, there are no specific methods available for the identification, characterization and quantification of nanoplastics in aquatic environments. Many of the methodologies developed for the analysis of microplastics cannot be directly applied to nanoplastics, while conventional nanoplastic characterization methods usually isolate and study individual nanoparticles, which can be a laborious and time-consuming process. By using microscopic techniques combined with spectroscopy, it is possible to speed up the analysis process, examine the morphology and size of the particle and identify the chemistry at the same time. Since nanoplastics created by the degradation of microplastics have
different properties than synthesized plastic nanoparticles, it is necessary to create new analytical and microscopic techniques that will help to better understand the seriousness of the nanoplastics problem. This work aims to identify methods that could be applied for the separation and characterization of nanoplastics from aquatic environments.
PB  - Beograd : Savez inženjera i tehničara Srbije
C3  - 43. Međunarodna konferencija Vodovod i kanalizacija '22, Zrenjanin
T1  - Identifikacija metoda za separaciju i karakterizaciju nanoplastike iz vodenih sredina / Identification of methods for separation and characterisation of nanoplastic from aquatic environments
EP  - 115
SP  - 110
ER  - 

@conference{
author = "Milojkov, Dušan and Mitrović, Angelina and Smiljanić, Danijela and Jovanović, Gvozden and Sokić, Miroslav",
year = "2022",
abstract = "Zagađenje vodenih resursa mikro- i nano-plastikom je prepoznato kao globalni problem. Trenutno ne postoje dostupne specifične metode za identifikaciju, karakterizaciju i kvantifikaciju nanoplastike u vodenim sredinama. Mnoge od metodologija razvijenih za analizu mikroplastike ne mogu se direktno primeniti na nanoplastiku, dok konvencionalne
metode karakterizacije nanoplastike obično izoluju i proučavaju pojedinačne nanočestice, što može biti naporan i dugotrajan proces. Korišćenjem mikroskopskih tehnika u kombinaciji sa spektroskopijom, moguće je ubrzati proces analize, ispitati morfologiju i veličinu čestica i istovremeno identifikovati hemiju. Pošto nanoplastika nastala degradacijom mikroplastike
ima drugačija svojstva od sintetisanih nanočestica plastike, neophodno je kreirati nove analitičke i mikroskopske tehnike koje će pomoći da se bolje razume ozbiljnost problema nanoplastike. Ovaj rad ima za cilj da identifikuje metode koje bi mogle da se primene za odvajanje i karakterizaciju nanoplastike iz vodenih sredina., Pollution of water resources with micro- and nanoplastics is recognized as a global problem. Currently, there are no specific methods available for the identification, characterization and quantification of nanoplastics in aquatic environments. Many of the methodologies developed for the analysis of microplastics cannot be directly applied to nanoplastics, while conventional nanoplastic characterization methods usually isolate and study individual nanoparticles, which can be a laborious and time-consuming process. By using microscopic techniques combined with spectroscopy, it is possible to speed up the analysis process, examine the morphology and size of the particle and identify the chemistry at the same time. Since nanoplastics created by the degradation of microplastics have
different properties than synthesized plastic nanoparticles, it is necessary to create new analytical and microscopic techniques that will help to better understand the seriousness of the nanoplastics problem. This work aims to identify methods that could be applied for the separation and characterization of nanoplastics from aquatic environments.",
publisher = "Beograd : Savez inženjera i tehničara Srbije",
journal = "43. Međunarodna konferencija Vodovod i kanalizacija '22, Zrenjanin",
title = "Identifikacija metoda za separaciju i karakterizaciju nanoplastike iz vodenih sredina / Identification of methods for separation and characterisation of nanoplastic from aquatic environments",
pages = "115-110"
}

Milojkov, D., Mitrović, A., Smiljanić, D., Jovanović, G.,& Sokić, M.. (2022). Identifikacija metoda za separaciju i karakterizaciju nanoplastike iz vodenih sredina / Identification of methods for separation and characterisation of nanoplastic from aquatic environments. in 43. Međunarodna konferencija Vodovod i kanalizacija '22, Zrenjanin
Beograd : Savez inženjera i tehničara Srbije., 110-115.

Milojkov D, Mitrović A, Smiljanić D, Jovanović G, Sokić M. Identifikacija metoda za separaciju i karakterizaciju nanoplastike iz vodenih sredina / Identification of methods for separation and characterisation of nanoplastic from aquatic environments. in 43. Međunarodna konferencija Vodovod i kanalizacija '22, Zrenjanin. 2022;:110-115..

Milojkov, Dušan, Mitrović, Angelina, Smiljanić, Danijela, Jovanović, Gvozden, Sokić, Miroslav, "Identifikacija metoda za separaciju i karakterizaciju nanoplastike iz vodenih sredina / Identification of methods for separation and characterisation of nanoplastic from aquatic environments" in 43. Međunarodna konferencija Vodovod i kanalizacija '22, Zrenjanin (2022):110-115.

TY  - CONF
AU  - Antanasković, Anja
AU  - Lopičić, Zorica
AU  - Šoštarić, Tatjana
AU  - Milojković, Jelena
AU  - Adamović, Vladimir
AU  - Smiljanić, Danijela
AU  - Milivojević, Milan
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/885
AB  - Annually, around 1.4 billion tonnes of food worldwide is classified as waste. This waste,
usually disposed at landfills, poses a serious threat to both the environment and human
health. With appropriate modifications, food waste can be converted into value-added
products for the removal of organic and inorganic contaminants from aqueous solutions. In
this study food waste (peach, cherry and plum stones) were modified with MgCl2 and
pyrolyzed to produce biochar, a multifunctional highly porous carbon rich material with
improved properties for phosphate (PO43-) removal. The samples were categorized using the
Fourier transform infra-red (FTIR-ATR) technique, point of zero charge (pHpzc) and pH
suspension (pHsus). The experimental sorption results revealed that the modified plum stone
biochar (PSB-M) has higher sorption capacities than other materials. Kinetic adsorption
experiments demonstrated that the pseudo-second-order model was the most suitable one for
PO43- adsorption on PSB-M. The production of such a sorbent can be affordable considering
that the raw material is regarded as waste. Therefore, the findings of this research can be a
foundation for the synthesis of an effective phosphate sorbent, whose properties and
maximum sorption capacity should be further researched.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Twentieth Young Researchers Conference – Materials Science and Engineering
T1  - Modified food wastes as potential sorbents for phosphate removal
EP  - 76
SP  - 76
ER  - 

@conference{
author = "Antanasković, Anja and Lopičić, Zorica and Šoštarić, Tatjana and Milojković, Jelena and Adamović, Vladimir and Smiljanić, Danijela and Milivojević, Milan",
year = "2022",
abstract = "Annually, around 1.4 billion tonnes of food worldwide is classified as waste. This waste,
usually disposed at landfills, poses a serious threat to both the environment and human
health. With appropriate modifications, food waste can be converted into value-added
products for the removal of organic and inorganic contaminants from aqueous solutions. In
this study food waste (peach, cherry and plum stones) were modified with MgCl2 and
pyrolyzed to produce biochar, a multifunctional highly porous carbon rich material with
improved properties for phosphate (PO43-) removal. The samples were categorized using the
Fourier transform infra-red (FTIR-ATR) technique, point of zero charge (pHpzc) and pH
suspension (pHsus). The experimental sorption results revealed that the modified plum stone
biochar (PSB-M) has higher sorption capacities than other materials. Kinetic adsorption
experiments demonstrated that the pseudo-second-order model was the most suitable one for
PO43- adsorption on PSB-M. The production of such a sorbent can be affordable considering
that the raw material is regarded as waste. Therefore, the findings of this research can be a
foundation for the synthesis of an effective phosphate sorbent, whose properties and
maximum sorption capacity should be further researched.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Twentieth Young Researchers Conference – Materials Science and Engineering",
title = "Modified food wastes as potential sorbents for phosphate removal",
pages = "76-76"
}

Antanasković, A., Lopičić, Z., Šoštarić, T., Milojković, J., Adamović, V., Smiljanić, D.,& Milivojević, M.. (2022). Modified food wastes as potential sorbents for phosphate removal. in Twentieth Young Researchers Conference – Materials Science and Engineering
Belgrade : Institute of Technical Sciences of SASA., 76-76.

Antanasković A, Lopičić Z, Šoštarić T, Milojković J, Adamović V, Smiljanić D, Milivojević M. Modified food wastes as potential sorbents for phosphate removal. in Twentieth Young Researchers Conference – Materials Science and Engineering. 2022;:76-76..

Antanasković, Anja, Lopičić, Zorica, Šoštarić, Tatjana, Milojković, Jelena, Adamović, Vladimir, Smiljanić, Danijela, Milivojević, Milan, "Modified food wastes as potential sorbents for phosphate removal" in Twentieth Young Researchers Conference – Materials Science and Engineering (2022):76-76.

TY  - JOUR
AU  - Obradović, Milena
AU  - Daković, Aleksandra
AU  - Smiljanić, Danijela
AU  - Ožegović, Milica
AU  - Marković, Marija
AU  - Rottinghaus, George E.
AU  - Krstić, Jugoslav
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/643
AB  - Cationic surfactant - octadecyldimethylbenzyl ammonium chloride (ODMBA) was used for modification of the three natural raw materials - bentonite, kaolin and zeolite. Adsorption of ODMBA by minerals occurred via ion exchange of inorganic cations on minerals with surfactant. Organomodified minerals - organobentonite (OB), organokaolin (OK) and organozeolite (OZ) were studied as adsorbents for removal of two non-steroidal anti-inflammatory drugs - ibuprofen (IBU) and diclofenac sodium (DS) at pH 7. For all systems, the pseudo-second order model showed the best correlation to kinetic experimental data. In all cases, the positive values of Delta H degrees indicated that the adsorption of both IBU and DS by organomodified minerals was endothermic in nature. Equilibrium data were better described by the Freundlich isotherm model, pointing to adsorbent heterogeneous active sites for adsorption. Under applied experimental conditions, the highest adsorption of both drugs was achieved by OB, while much lower capacities were observed for OK and OZ. Nonlinear isotherms and physicochemical characterization of organomodified minerals after drugs adsorption suggested complex mechanism consisting of hydrophobic interactions between hydrophobic part of the drugs and surfactants alkyl chains, electrostatic interactions of anionic forms of IBU and DS with the cationic "head" of ODMBA, as well as anion exchange of counterion ions from ODMBA micelle and anionic forms of both drugs. Adsorption of both IBU and DS was strongly dependent on the amount of ODMBA ions in the minerals.
PB  - Elsevier, Amsterdam
T2  - Microporous and Mesoporous Materials
T1  - Ibuprofen and diclofenac sodium adsorption onto functionalized minerals: Equilibrium, kinetic and thermodynamic studies
VL  - 335
DO  - 10.1016/j.micromeso.2022.111795
UR  - conv_945
ER  - 

@article{
author = "Obradović, Milena and Daković, Aleksandra and Smiljanić, Danijela and Ožegović, Milica and Marković, Marija and Rottinghaus, George E. and Krstić, Jugoslav",
year = "2022",
abstract = "Cationic surfactant - octadecyldimethylbenzyl ammonium chloride (ODMBA) was used for modification of the three natural raw materials - bentonite, kaolin and zeolite. Adsorption of ODMBA by minerals occurred via ion exchange of inorganic cations on minerals with surfactant. Organomodified minerals - organobentonite (OB), organokaolin (OK) and organozeolite (OZ) were studied as adsorbents for removal of two non-steroidal anti-inflammatory drugs - ibuprofen (IBU) and diclofenac sodium (DS) at pH 7. For all systems, the pseudo-second order model showed the best correlation to kinetic experimental data. In all cases, the positive values of Delta H degrees indicated that the adsorption of both IBU and DS by organomodified minerals was endothermic in nature. Equilibrium data were better described by the Freundlich isotherm model, pointing to adsorbent heterogeneous active sites for adsorption. Under applied experimental conditions, the highest adsorption of both drugs was achieved by OB, while much lower capacities were observed for OK and OZ. Nonlinear isotherms and physicochemical characterization of organomodified minerals after drugs adsorption suggested complex mechanism consisting of hydrophobic interactions between hydrophobic part of the drugs and surfactants alkyl chains, electrostatic interactions of anionic forms of IBU and DS with the cationic "head" of ODMBA, as well as anion exchange of counterion ions from ODMBA micelle and anionic forms of both drugs. Adsorption of both IBU and DS was strongly dependent on the amount of ODMBA ions in the minerals.",
publisher = "Elsevier, Amsterdam",
journal = "Microporous and Mesoporous Materials",
title = "Ibuprofen and diclofenac sodium adsorption onto functionalized minerals: Equilibrium, kinetic and thermodynamic studies",
volume = "335",
doi = "10.1016/j.micromeso.2022.111795",
url = "conv_945"
}

Obradović, M., Daković, A., Smiljanić, D., Ožegović, M., Marković, M., Rottinghaus, G. E.,& Krstić, J.. (2022). Ibuprofen and diclofenac sodium adsorption onto functionalized minerals: Equilibrium, kinetic and thermodynamic studies. in Microporous and Mesoporous Materials
Elsevier, Amsterdam., 335.
https://doi.org/10.1016/j.micromeso.2022.111795
conv_945

Obradović M, Daković A, Smiljanić D, Ožegović M, Marković M, Rottinghaus GE, Krstić J. Ibuprofen and diclofenac sodium adsorption onto functionalized minerals: Equilibrium, kinetic and thermodynamic studies. in Microporous and Mesoporous Materials. 2022;335.
doi:10.1016/j.micromeso.2022.111795
conv_945 .

Obradović, Milena, Daković, Aleksandra, Smiljanić, Danijela, Ožegović, Milica, Marković, Marija, Rottinghaus, George E., Krstić, Jugoslav, "Ibuprofen and diclofenac sodium adsorption onto functionalized minerals: Equilibrium, kinetic and thermodynamic studies" in Microporous and Mesoporous Materials, 335 (2022),
https://doi.org/10.1016/j.micromeso.2022.111795 .,
conv_945 .

TY  - CONF
AU  - Smiljanić, Danijela
AU  - Daković, Aleksandra
AU  - Spasojević, Milica
AU  - Obradović, Milena
AU  - Marković, Marija
AU  - Langella, Alessio
AU  - de Gennaro, Bruno
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/731
AB  - In this work phillipsite-rich tuff (P) was modified by using amounts of cetylpyridinium
chloride (C) equivalent to 70% and 140% of the zeolite external cation exchange capacity
(ECEC). Accordingly, composites were denoted as PC-70 and PC-140. Prepared composites
were characterized by ATR-FTIR spectroscopy. Additionally, to test the stability of surfactant
molecules attached to the tuff surface, composites were extensively washed with distilled
water, and zeta potential of unwashed and washed samples was measured. FTIR spectra
confirmed presence of C in both composites. Zeta potential measurements showed that
composite containing surfactant in the amount below the ECEC value (PC-70) has much
higher stability and thus is a more appropriate adsorbent for potential practical application for
removal of different pollutants.
PB  - Zagreb : Croatian Zeolite Association
C3  - 9th Croatian-Slovenian-Serbian Symposium on Zeolites
T1  - Composites of phillipsite-rich tuff and surfactant – their characterization and stability
EP  - 46
SP  - 43
ER  - 

@conference{
author = "Smiljanić, Danijela and Daković, Aleksandra and Spasojević, Milica and Obradović, Milena and Marković, Marija and Langella, Alessio and de Gennaro, Bruno",
year = "2021",
abstract = "In this work phillipsite-rich tuff (P) was modified by using amounts of cetylpyridinium
chloride (C) equivalent to 70% and 140% of the zeolite external cation exchange capacity
(ECEC). Accordingly, composites were denoted as PC-70 and PC-140. Prepared composites
were characterized by ATR-FTIR spectroscopy. Additionally, to test the stability of surfactant
molecules attached to the tuff surface, composites were extensively washed with distilled
water, and zeta potential of unwashed and washed samples was measured. FTIR spectra
confirmed presence of C in both composites. Zeta potential measurements showed that
composite containing surfactant in the amount below the ECEC value (PC-70) has much
higher stability and thus is a more appropriate adsorbent for potential practical application for
removal of different pollutants.",
publisher = "Zagreb : Croatian Zeolite Association",
journal = "9th Croatian-Slovenian-Serbian Symposium on Zeolites",
title = "Composites of phillipsite-rich tuff and surfactant – their characterization and stability",
pages = "46-43"
}

Smiljanić, D., Daković, A., Spasojević, M., Obradović, M., Marković, M., Langella, A.,& de Gennaro, B.. (2021). Composites of phillipsite-rich tuff and surfactant – their characterization and stability. in 9th Croatian-Slovenian-Serbian Symposium on Zeolites
Zagreb : Croatian Zeolite Association., 43-46.

Smiljanić D, Daković A, Spasojević M, Obradović M, Marković M, Langella A, de Gennaro B. Composites of phillipsite-rich tuff and surfactant – their characterization and stability. in 9th Croatian-Slovenian-Serbian Symposium on Zeolites. 2021;:43-46..

Smiljanić, Danijela, Daković, Aleksandra, Spasojević, Milica, Obradović, Milena, Marković, Marija, Langella, Alessio, de Gennaro, Bruno, "Composites of phillipsite-rich tuff and surfactant – their characterization and stability" in 9th Croatian-Slovenian-Serbian Symposium on Zeolites (2021):43-46.

TY  - CONF
AU  - Daković, Aleksandra
AU  - Obradović, Milena
AU  - Marković, Marija
AU  - Smiljanić, Danijela
AU  - Spasojević, Milica
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/730
AB  - Organobentonites are usually synthesized by intercalating various long chain organic cations (surfactants) into the interlayer space of bentonite by ion exchange with naturally occurring exchangeable cations. Presence of surfactants in the interlamellar space of bentonite changes its surface properties from hydrophilic to hydrophobic [1].
In this study, results on characterization of organobentonites obtained by treatment of Ca/Na bentonite with different amounts of surfactant – octadecyldimethylbenzyl ammonium chloride – ODMBA (10, 20, 30, 50 and 100 % of cation exchange capacity of Ca/Na bentonite) are presented. Organobentonites are denoted as OB-10, OB-20, OB-30, OB-50 and OB-100 [2]. Characterization of organobentonites were done by XRD [2] and thermal (DTA/TG) analyses. DTA curves as well as the data for mass loss from TG curves of Ca/Na bentonite and organobentonites are presented in the graphical abstract. DTA/TG analysis can be used to differentiate peaks associated with weight loss and those associated with phase transition and is widely used in the study of thermal reactions of the natural clay minerals (e.g. Ca/Na bentonite). These reactions include dehydration, dehydroxylation as well as transformation of the clay to a meta-phase and recrystallization of the meta-phase into a crystalline phase. The first two reactions are endothermic whereas the recrystallization of the meta-phase is exothermic [3]. In the DTA curves of the organobentonites, additional intensive exothermic peaks at temperatures >300ºC were observed representing oxidation of the organic matter present in the interlayer space of clay. The relative intensity of these exothermic peaks increase with increasing amounts of ODMBA in organobentonite. From mass loss, it can be seen that when organic cations are present in the interllamelar space of clay, mass loss in the first temperature region is lower confirming that treatment of Ca/Na bentonite with ODMBA ions increase hydrophobicity of the clay surface.
PB  - Kosovska Mitrovica : Fakultet Tehničkih nauka
C3  - Deseti simpozijum o termodinamici i faznim dijagramima
T1  - Thermal and XRD analysis in characterization of bentonite modified with different amounts of surfactant
EP  - 57
SP  - 56
ER  - 

@conference{
author = "Daković, Aleksandra and Obradović, Milena and Marković, Marija and Smiljanić, Danijela and Spasojević, Milica",
year = "2021",
abstract = "Organobentonites are usually synthesized by intercalating various long chain organic cations (surfactants) into the interlayer space of bentonite by ion exchange with naturally occurring exchangeable cations. Presence of surfactants in the interlamellar space of bentonite changes its surface properties from hydrophilic to hydrophobic [1].
In this study, results on characterization of organobentonites obtained by treatment of Ca/Na bentonite with different amounts of surfactant – octadecyldimethylbenzyl ammonium chloride – ODMBA (10, 20, 30, 50 and 100 % of cation exchange capacity of Ca/Na bentonite) are presented. Organobentonites are denoted as OB-10, OB-20, OB-30, OB-50 and OB-100 [2]. Characterization of organobentonites were done by XRD [2] and thermal (DTA/TG) analyses. DTA curves as well as the data for mass loss from TG curves of Ca/Na bentonite and organobentonites are presented in the graphical abstract. DTA/TG analysis can be used to differentiate peaks associated with weight loss and those associated with phase transition and is widely used in the study of thermal reactions of the natural clay minerals (e.g. Ca/Na bentonite). These reactions include dehydration, dehydroxylation as well as transformation of the clay to a meta-phase and recrystallization of the meta-phase into a crystalline phase. The first two reactions are endothermic whereas the recrystallization of the meta-phase is exothermic [3]. In the DTA curves of the organobentonites, additional intensive exothermic peaks at temperatures >300ºC were observed representing oxidation of the organic matter present in the interlayer space of clay. The relative intensity of these exothermic peaks increase with increasing amounts of ODMBA in organobentonite. From mass loss, it can be seen that when organic cations are present in the interllamelar space of clay, mass loss in the first temperature region is lower confirming that treatment of Ca/Na bentonite with ODMBA ions increase hydrophobicity of the clay surface.",
publisher = "Kosovska Mitrovica : Fakultet Tehničkih nauka",
journal = "Deseti simpozijum o termodinamici i faznim dijagramima",
title = "Thermal and XRD analysis in characterization of bentonite modified with different amounts of surfactant",
pages = "57-56"
}

Daković, A., Obradović, M., Marković, M., Smiljanić, D.,& Spasojević, M.. (2021). Thermal and XRD analysis in characterization of bentonite modified with different amounts of surfactant. in Deseti simpozijum o termodinamici i faznim dijagramima
Kosovska Mitrovica : Fakultet Tehničkih nauka., 56-57.

Daković A, Obradović M, Marković M, Smiljanić D, Spasojević M. Thermal and XRD analysis in characterization of bentonite modified with different amounts of surfactant. in Deseti simpozijum o termodinamici i faznim dijagramima. 2021;:56-57..

Daković, Aleksandra, Obradović, Milena, Marković, Marija, Smiljanić, Danijela, Spasojević, Milica, "Thermal and XRD analysis in characterization of bentonite modified with different amounts of surfactant" in Deseti simpozijum o termodinamici i faznim dijagramima (2021):56-57.

TY  - CONF
AU  - Obradović, Milena
AU  - Daković, Aleksandra
AU  - Rottinghaus, George E.
AU  - Spasojević, Milica
AU  - Marković, Marija
AU  - Smiljanić, Danijela
AU  - Krajišnik, Danina
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/729
AB  - In this paper, results of ibuprofen (IBU) adsorption by organokaolins obtained by modification of the natural kaolin (KR) with surfactant - hexadecyltrimethyl ammonium bromide (H) are presented. Two different amounts of surfactant were used for modification of KR (50 and 90% of kaolin’s cation exchange capacity). Samples are denoted as HKR-50 and HKR-90. Adsorption of IBU on organokaolins was investigated with different initial drug concentrations (2 – 20 mg/L) in phosphate buffer at pH 7. Compared with KR which has no affinity to adsorb IBU, modification of KR with H improved adsorption of this drug. Results showed that adsorption of IBU increased with increasing of the amount of surfactant in organokaolins as well as with increasing of the initial concentration of the drug in solution. Adsorption of IBU by both adsorbents followed nonlinear isotherms and from the Langmuir model, the maximum adsorption capacities were 2.05 mg/g for HKR-50 and 3.12 mg/g for HKR-90.
PB  - Belgrade : Society of Physical Chemists of Serbia
C3  - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry
T1  - Adsorption of ibuprofen by surfactant modified kaolin
EP  - 528
SP  - 525
ER  - 

@conference{
author = "Obradović, Milena and Daković, Aleksandra and Rottinghaus, George E. and Spasojević, Milica and Marković, Marija and Smiljanić, Danijela and Krajišnik, Danina",
year = "2021",
abstract = "In this paper, results of ibuprofen (IBU) adsorption by organokaolins obtained by modification of the natural kaolin (KR) with surfactant - hexadecyltrimethyl ammonium bromide (H) are presented. Two different amounts of surfactant were used for modification of KR (50 and 90% of kaolin’s cation exchange capacity). Samples are denoted as HKR-50 and HKR-90. Adsorption of IBU on organokaolins was investigated with different initial drug concentrations (2 – 20 mg/L) in phosphate buffer at pH 7. Compared with KR which has no affinity to adsorb IBU, modification of KR with H improved adsorption of this drug. Results showed that adsorption of IBU increased with increasing of the amount of surfactant in organokaolins as well as with increasing of the initial concentration of the drug in solution. Adsorption of IBU by both adsorbents followed nonlinear isotherms and from the Langmuir model, the maximum adsorption capacities were 2.05 mg/g for HKR-50 and 3.12 mg/g for HKR-90.",
publisher = "Belgrade : Society of Physical Chemists of Serbia",
journal = "15th International Conference on Fundamental and Applied Aspects of Physical Chemistry",
title = "Adsorption of ibuprofen by surfactant modified kaolin",
pages = "528-525"
}

Obradović, M., Daković, A., Rottinghaus, G. E., Spasojević, M., Marković, M., Smiljanić, D.,& Krajišnik, D.. (2021). Adsorption of ibuprofen by surfactant modified kaolin. in 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry
Belgrade : Society of Physical Chemists of Serbia., 525-528.

Obradović M, Daković A, Rottinghaus GE, Spasojević M, Marković M, Smiljanić D, Krajišnik D. Adsorption of ibuprofen by surfactant modified kaolin. in 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2021;:525-528..

Obradović, Milena, Daković, Aleksandra, Rottinghaus, George E., Spasojević, Milica, Marković, Marija, Smiljanić, Danijela, Krajišnik, Danina, "Adsorption of ibuprofen by surfactant modified kaolin" in 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry (2021):525-528.

TY  - CONF
AU  - Marković, Marija
AU  - Daković, Aleksandra
AU  - Rottinghaus, George E.
AU  - Spasojević, Milica
AU  - Obradović, Milena
AU  - Smiljanić, Danijela
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/727
AB  - Cetylpyridinium chloride (CP) was used to modify the surface of the natural zeolite and adsorption
of two mycotoxins, ochratoxin A (OCHRA) and zearalenone (ZEN) was investigated. The
organozeolites were prepared with three different levels of CP (20, 50 and 100% of zeolite’s external
cation exchange capacity) and mycotoxin adsorption experiments were done at pH 3 and 7. Results
showed that with increasing amounts of CP at the zeolitic surface, adsorption of OCHRA and ZEN
increased, as well as with increasing amounts of solid phase in suspension. Adsorption of OCHRA
was dependent of the form of OCHRA in solution while ZEN adsorption was pH independent.
Maximum adsorption was obtained with the highest level of CP present at the zeolitic surface for
both mycotoxins.
PB  - Belgrade : Society of Physical Chemists of Serbia
C3  - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry
T1  - Ochratoxin A and zearalenone adsorption by surfactant modified zeolite
EP  - 383
SP  - 380
ER  - 

@conference{
author = "Marković, Marija and Daković, Aleksandra and Rottinghaus, George E. and Spasojević, Milica and Obradović, Milena and Smiljanić, Danijela",
year = "2021",
abstract = "Cetylpyridinium chloride (CP) was used to modify the surface of the natural zeolite and adsorption
of two mycotoxins, ochratoxin A (OCHRA) and zearalenone (ZEN) was investigated. The
organozeolites were prepared with three different levels of CP (20, 50 and 100% of zeolite’s external
cation exchange capacity) and mycotoxin adsorption experiments were done at pH 3 and 7. Results
showed that with increasing amounts of CP at the zeolitic surface, adsorption of OCHRA and ZEN
increased, as well as with increasing amounts of solid phase in suspension. Adsorption of OCHRA
was dependent of the form of OCHRA in solution while ZEN adsorption was pH independent.
Maximum adsorption was obtained with the highest level of CP present at the zeolitic surface for
both mycotoxins.",
publisher = "Belgrade : Society of Physical Chemists of Serbia",
journal = "15th International Conference on Fundamental and Applied Aspects of Physical Chemistry",
title = "Ochratoxin A and zearalenone adsorption by surfactant modified zeolite",
pages = "383-380"
}

Marković, M., Daković, A., Rottinghaus, G. E., Spasojević, M., Obradović, M.,& Smiljanić, D.. (2021). Ochratoxin A and zearalenone adsorption by surfactant modified zeolite. in 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry
Belgrade : Society of Physical Chemists of Serbia., 380-383.

Marković M, Daković A, Rottinghaus GE, Spasojević M, Obradović M, Smiljanić D. Ochratoxin A and zearalenone adsorption by surfactant modified zeolite. in 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2021;:380-383..

Marković, Marija, Daković, Aleksandra, Rottinghaus, George E., Spasojević, Milica, Obradović, Milena, Smiljanić, Danijela, "Ochratoxin A and zearalenone adsorption by surfactant modified zeolite" in 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry (2021):380-383.

TY  - CONF
AU  - Mitrović, Angelina
AU  - Đurkić, Tatjana
AU  - Prokić, Danijela
AU  - Lukić, Jelena
AU  - Milojkov, Dušan
AU  - Smiljanić, Danijela
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/976
AB  - Masovna upotreba plastike u konzumerističkom životnom stilu prouzrokovala je problem koji izumitelji ovih polimera nisu mogli predvideti. Otkriće mikroplastike kao polutanta prisutnog u životnoj sredini postalo je globalna briga i rezultiralo intenzivnom istraživanju u ovoj oblasti. Mikroplastika je definisana kao bilo koji deo plastike sa pre čnikom od 100 nm do 5 mm. Mikroplastika je svuda oko nas, ima je u kozmetičkim proiz vodima, vlaknima odeće, vodi i hrani, a pronađena je čak i u artičkom ledu. U ovom pre glednom radu biće opisano zašto se sumnja da su postrojenja za prečišćavanje otpadnih voda (PPOV) značajni tačkasti izvori ispuštanja mikroplastike u vodenu sredinu.
AB  - The frequent usage of plastics in the consumer lifestyle has caused a problem that 
inventors of these polymers could not have foreseen. The discovery of microplastics as a pollutant present in the environment has become a global concern and has resulted in intensive research in this area. Microplastic is defined as any part of plastic with a diameter of 100 nm to 5 mm. Microplastics are all around us, in cosmetics, fibers of our clothes, water, and food, and it is even found in arctic ice. This review will describe why wastewater treatment plants (WWTPs) are suspected to be significant point sources of microplastic discharges into the aquatic environment.
PB  - Beograd : Savez inženjera i tehničara Srbije
C3  - 42. Međunarodna konferencija Vodovod i kanalizacija '21, Vrnjačka Banja
T1  - Mikroplastika u otpadnim vodama
T1  - Microplastics in wastewater
EP  - 201
SP  - 197
ER  - 

@conference{
author = "Mitrović, Angelina and Đurkić, Tatjana and Prokić, Danijela and Lukić, Jelena and Milojkov, Dušan and Smiljanić, Danijela",
year = "2021",
abstract = "Masovna upotreba plastike u konzumerističkom životnom stilu prouzrokovala je problem koji izumitelji ovih polimera nisu mogli predvideti. Otkriće mikroplastike kao polutanta prisutnog u životnoj sredini postalo je globalna briga i rezultiralo intenzivnom istraživanju u ovoj oblasti. Mikroplastika je definisana kao bilo koji deo plastike sa pre čnikom od 100 nm do 5 mm. Mikroplastika je svuda oko nas, ima je u kozmetičkim proiz vodima, vlaknima odeće, vodi i hrani, a pronađena je čak i u artičkom ledu. U ovom pre glednom radu biće opisano zašto se sumnja da su postrojenja za prečišćavanje otpadnih voda (PPOV) značajni tačkasti izvori ispuštanja mikroplastike u vodenu sredinu., The frequent usage of plastics in the consumer lifestyle has caused a problem that 
inventors of these polymers could not have foreseen. The discovery of microplastics as a pollutant present in the environment has become a global concern and has resulted in intensive research in this area. Microplastic is defined as any part of plastic with a diameter of 100 nm to 5 mm. Microplastics are all around us, in cosmetics, fibers of our clothes, water, and food, and it is even found in arctic ice. This review will describe why wastewater treatment plants (WWTPs) are suspected to be significant point sources of microplastic discharges into the aquatic environment.",
publisher = "Beograd : Savez inženjera i tehničara Srbije",
journal = "42. Međunarodna konferencija Vodovod i kanalizacija '21, Vrnjačka Banja",
title = "Mikroplastika u otpadnim vodama, Microplastics in wastewater",
pages = "201-197"
}

Mitrović, A., Đurkić, T., Prokić, D., Lukić, J., Milojkov, D.,& Smiljanić, D.. (2021). Mikroplastika u otpadnim vodama. in 42. Međunarodna konferencija Vodovod i kanalizacija '21, Vrnjačka Banja
Beograd : Savez inženjera i tehničara Srbije., 197-201.

Mitrović A, Đurkić T, Prokić D, Lukić J, Milojkov D, Smiljanić D. Mikroplastika u otpadnim vodama. in 42. Međunarodna konferencija Vodovod i kanalizacija '21, Vrnjačka Banja. 2021;:197-201..

Mitrović, Angelina, Đurkić, Tatjana, Prokić, Danijela, Lukić, Jelena, Milojkov, Dušan, Smiljanić, Danijela, "Mikroplastika u otpadnim vodama" in 42. Međunarodna konferencija Vodovod i kanalizacija '21, Vrnjačka Banja (2021):197-201.

TY  - CONF
AU  - Antanasković, Anja
AU  - Lopičić, Zorica
AU  - Adamović, Vladimir
AU  - Šoštarić, Tatjana
AU  - Rakin, Marica
AU  - Rakin, Marko
AU  - Smiljanić, Danijela
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/880
AB  - Fruit waste produced in huge quantities from the food and agriculture industries causes numerous difficulties in landfills due to their high biodegradability. The reuse of this waste is one of the future requirements for accomplish economic and environmental sustainability. Recent studies have shown that with appropriate modifications (chemical, physical or thermal) this material can be used to obtain a high-quality biosorbent to remove pollutants from wastewater. In this paper, peach stone (Prunus Persica L) particles (PS), as a part of fruit industrial organic waste, were immobilized in sodium alginate (PS-A) and utilized to remove lead from water solutions. The PS-A was characterized and analyzed by Scanning Electron Microscopy (SEM) and Fourier-transform infrared spectroscopy-attenuated total reflection (FTIR-ATR); contact pH and pHpzc were done as well. The effect of operating parameters such as contact time, mass to volume ratio, and pH on the performance of Pb removal in the batch reaction system was investigated. The experimental data were fitted by appropriate kinetic models. The results from this paper indicate that PS-A particles have the potential to be applied as an effective adsorbent of lead ions from an aqueous solution.
PB  - Belgrade : Innovation Center of Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies
T1  - Assessment of sorption capability of alginate immobilized peach stone particles for lead removal from water
EP  - 100
SP  - 100
ER  - 

@conference{
author = "Antanasković, Anja and Lopičić, Zorica and Adamović, Vladimir and Šoštarić, Tatjana and Rakin, Marica and Rakin, Marko and Smiljanić, Danijela",
year = "2021",
abstract = "Fruit waste produced in huge quantities from the food and agriculture industries causes numerous difficulties in landfills due to their high biodegradability. The reuse of this waste is one of the future requirements for accomplish economic and environmental sustainability. Recent studies have shown that with appropriate modifications (chemical, physical or thermal) this material can be used to obtain a high-quality biosorbent to remove pollutants from wastewater. In this paper, peach stone (Prunus Persica L) particles (PS), as a part of fruit industrial organic waste, were immobilized in sodium alginate (PS-A) and utilized to remove lead from water solutions. The PS-A was characterized and analyzed by Scanning Electron Microscopy (SEM) and Fourier-transform infrared spectroscopy-attenuated total reflection (FTIR-ATR); contact pH and pHpzc were done as well. The effect of operating parameters such as contact time, mass to volume ratio, and pH on the performance of Pb removal in the batch reaction system was investigated. The experimental data were fitted by appropriate kinetic models. The results from this paper indicate that PS-A particles have the potential to be applied as an effective adsorbent of lead ions from an aqueous solution.",
publisher = "Belgrade : Innovation Center of Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies",
title = "Assessment of sorption capability of alginate immobilized peach stone particles for lead removal from water",
pages = "100-100"
}

Antanasković, A., Lopičić, Z., Adamović, V., Šoštarić, T., Rakin, M., Rakin, M.,& Smiljanić, D.. (2021). Assessment of sorption capability of alginate immobilized peach stone particles for lead removal from water. in International Conference of Experimental and Numerical Investigations and New Technologies
Belgrade : Innovation Center of Faculty of Mechanical Engineering., 100-100.

Antanasković A, Lopičić Z, Adamović V, Šoštarić T, Rakin M, Rakin M, Smiljanić D. Assessment of sorption capability of alginate immobilized peach stone particles for lead removal from water. in International Conference of Experimental and Numerical Investigations and New Technologies. 2021;:100-100..

Antanasković, Anja, Lopičić, Zorica, Adamović, Vladimir, Šoštarić, Tatjana, Rakin, Marica, Rakin, Marko, Smiljanić, Danijela, "Assessment of sorption capability of alginate immobilized peach stone particles for lead removal from water" in International Conference of Experimental and Numerical Investigations and New Technologies (2021):100-100.

TY  - CONF
AU  - Sokić, Katarina
AU  - Veljović, Đorđe
AU  - Dikić, Jelena
AU  - Stojanović, Jovica
AU  - Smiljanić, Danijela
AU  - Jevtić, Sanja
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/728
AB  - The aim of this study was to investigate the possibilities and to optimize the conditions for the synthesis of hydroxyapatite (HAP) on calcium-enriched natural and synthetic zeolites as carriers. Two synthetic zeolites were used in the paper: zeolite 4A (Na-form) and zeolite 5A (Ca-form) as well as natural zeolite - clinoptilolite from Slanci deposit in Serbia.
Clinoptilolite and zeolite 4A were enriched with calcium ions by ion exchange treatmentin order to enable the source of Ca2+in the crystallization of hydroxyapatite. Phosphorus, necessary for the crystallization of hydroxyapatite, was introduced through a solution of ammonium-hydrogenphosphate. The influence of the concentration of hydrogen phosphate ions, temperature and crystallization time of hydroxyapatite on the morphology of the zeolite surface as well as the degree of its coverage with newly formed hydroxyapatite particles was monitored in the experiments. The obtained powders were characterized by X-ray powder diffraction (XRD), thermal TG-DTG analysis, infrared spectroscopy with Fourier transformation (FTIR) and scanning electron microscopy (SEM). Based on the structural analysis, it was shown that the synthesis of hydroxyapatite did not affect on the structure of the zeolite, except in the case when a very concentrated hydrogen-phosphate solution was used. Thermal analysis showed that all obtained zeolite and HAP samples were stable up to 800 °C. Optimization of the hydrothermal crystallization process showed that temperature and time do not have a crucial influence on the synthesis of the materials (similar results were obtained at 120 °C for 20 hours and at 160 °C for 4 hours). When the concentration of the solution of ammonium hydrogen phosphate was higher, larger crystals of hydroxyapatite were obtained, but the crystal lattice of the zeolite was collapsed. SEM micrography showed that unevenly distributed hydroxyapatite crystals were formed on natural zeolite due to the presence of various impurities, while the best results were achieved using zeolite 5A, where
the surface of the zeolite is completely covered with crystals of hydroxyapatite.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Nineteenth Young Researchers’ Conference - Materials Science and Engineering
T1  - Hydrothermal synthesis of hydroxyapatite on calcium-enriched natural and synthetic zeolite as a carrier
EP  - 75
SP  - 75
ER  - 

@conference{
author = "Sokić, Katarina and Veljović, Đorđe and Dikić, Jelena and Stojanović, Jovica and Smiljanić, Danijela and Jevtić, Sanja",
year = "2021",
abstract = "The aim of this study was to investigate the possibilities and to optimize the conditions for the synthesis of hydroxyapatite (HAP) on calcium-enriched natural and synthetic zeolites as carriers. Two synthetic zeolites were used in the paper: zeolite 4A (Na-form) and zeolite 5A (Ca-form) as well as natural zeolite - clinoptilolite from Slanci deposit in Serbia.
Clinoptilolite and zeolite 4A were enriched with calcium ions by ion exchange treatmentin order to enable the source of Ca2+in the crystallization of hydroxyapatite. Phosphorus, necessary for the crystallization of hydroxyapatite, was introduced through a solution of ammonium-hydrogenphosphate. The influence of the concentration of hydrogen phosphate ions, temperature and crystallization time of hydroxyapatite on the morphology of the zeolite surface as well as the degree of its coverage with newly formed hydroxyapatite particles was monitored in the experiments. The obtained powders were characterized by X-ray powder diffraction (XRD), thermal TG-DTG analysis, infrared spectroscopy with Fourier transformation (FTIR) and scanning electron microscopy (SEM). Based on the structural analysis, it was shown that the synthesis of hydroxyapatite did not affect on the structure of the zeolite, except in the case when a very concentrated hydrogen-phosphate solution was used. Thermal analysis showed that all obtained zeolite and HAP samples were stable up to 800 °C. Optimization of the hydrothermal crystallization process showed that temperature and time do not have a crucial influence on the synthesis of the materials (similar results were obtained at 120 °C for 20 hours and at 160 °C for 4 hours). When the concentration of the solution of ammonium hydrogen phosphate was higher, larger crystals of hydroxyapatite were obtained, but the crystal lattice of the zeolite was collapsed. SEM micrography showed that unevenly distributed hydroxyapatite crystals were formed on natural zeolite due to the presence of various impurities, while the best results were achieved using zeolite 5A, where
the surface of the zeolite is completely covered with crystals of hydroxyapatite.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Nineteenth Young Researchers’ Conference - Materials Science and Engineering",
title = "Hydrothermal synthesis of hydroxyapatite on calcium-enriched natural and synthetic zeolite as a carrier",
pages = "75-75"
}

Sokić, K., Veljović, Đ., Dikić, J., Stojanović, J., Smiljanić, D.,& Jevtić, S.. (2021). Hydrothermal synthesis of hydroxyapatite on calcium-enriched natural and synthetic zeolite as a carrier. in Nineteenth Young Researchers’ Conference - Materials Science and Engineering
Belgrade : Institute of Technical Sciences of SASA., 75-75.

Sokić K, Veljović Đ, Dikić J, Stojanović J, Smiljanić D, Jevtić S. Hydrothermal synthesis of hydroxyapatite on calcium-enriched natural and synthetic zeolite as a carrier. in Nineteenth Young Researchers’ Conference - Materials Science and Engineering. 2021;:75-75..

Sokić, Katarina, Veljović, Đorđe, Dikić, Jelena, Stojanović, Jovica, Smiljanić, Danijela, Jevtić, Sanja, "Hydrothermal synthesis of hydroxyapatite on calcium-enriched natural and synthetic zeolite as a carrier" in Nineteenth Young Researchers’ Conference - Materials Science and Engineering (2021):75-75.

TY  - JOUR
AU  - Smiljanić, Danijela
AU  - de Gennaro, Bruno
AU  - Daković, Aleksandra
AU  - Galzerano, Barbara
AU  - Germinario, Chiara
AU  - Izzo, Francesco
AU  - Rottinghaus, George E.
AU  - Langella, Alessio
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/596
AB  - Composites of two natural zeolites ? clinoptilolite and phillipsite, and cationic surfactants (cetylpyridinium chloride and Arquad? 2HT-75) were tested for the removal of two emerging contaminants ? ibuprofen and naproxen. For each zeolite-rich rock, two different modifications of the zeolitic surfaces were prepared (monolayer and bilayer surfactant coverage). The influence of the initial drug concentrations and contact time on adsorption of these drugs was followed in buffer solution. The Langmuir model showed the highest adsorption capacity for the composite characterized by a bilayered surfactant at the clinoptilolite surface: 19.7 mg/g and 16.1 mg/g for ibuprofen and naproxen, respectively. Also, to simulate real systems, drug adsorption isotherms were conducted in natural water (Grindstone creek water ? Columbia, Missouri, USA) by using the best performing adsorbent; in this case, a slight decrease of drug adsorption was recorded. Kinetic runs were performed in distilled water as well as in the presence of ions such as sulfates and bicarbonates; also, in this case, the interfering agents defined an adsorption decrease for bilayer composites.
PB  - Academic Press Ltd- Elsevier Science Ltd, London
T2  - Journal of Environmental Management
T1  - Removal of non-steroidal anti-inflammatory drugs from water by zeolite-rich composites: The interference of inorganic anions on the ibuprofen and naproxen adsorption
VL  - 286
DO  - 10.1016/j.jenvman.2021.112168
UR  - conv_905
ER  - 

@article{
author = "Smiljanić, Danijela and de Gennaro, Bruno and Daković, Aleksandra and Galzerano, Barbara and Germinario, Chiara and Izzo, Francesco and Rottinghaus, George E. and Langella, Alessio",
year = "2021",
abstract = "Composites of two natural zeolites ? clinoptilolite and phillipsite, and cationic surfactants (cetylpyridinium chloride and Arquad? 2HT-75) were tested for the removal of two emerging contaminants ? ibuprofen and naproxen. For each zeolite-rich rock, two different modifications of the zeolitic surfaces were prepared (monolayer and bilayer surfactant coverage). The influence of the initial drug concentrations and contact time on adsorption of these drugs was followed in buffer solution. The Langmuir model showed the highest adsorption capacity for the composite characterized by a bilayered surfactant at the clinoptilolite surface: 19.7 mg/g and 16.1 mg/g for ibuprofen and naproxen, respectively. Also, to simulate real systems, drug adsorption isotherms were conducted in natural water (Grindstone creek water ? Columbia, Missouri, USA) by using the best performing adsorbent; in this case, a slight decrease of drug adsorption was recorded. Kinetic runs were performed in distilled water as well as in the presence of ions such as sulfates and bicarbonates; also, in this case, the interfering agents defined an adsorption decrease for bilayer composites.",
publisher = "Academic Press Ltd- Elsevier Science Ltd, London",
journal = "Journal of Environmental Management",
title = "Removal of non-steroidal anti-inflammatory drugs from water by zeolite-rich composites: The interference of inorganic anions on the ibuprofen and naproxen adsorption",
volume = "286",
doi = "10.1016/j.jenvman.2021.112168",
url = "conv_905"
}

Smiljanić, D., de Gennaro, B., Daković, A., Galzerano, B., Germinario, C., Izzo, F., Rottinghaus, G. E.,& Langella, A.. (2021). Removal of non-steroidal anti-inflammatory drugs from water by zeolite-rich composites: The interference of inorganic anions on the ibuprofen and naproxen adsorption. in Journal of Environmental Management
Academic Press Ltd- Elsevier Science Ltd, London., 286.
https://doi.org/10.1016/j.jenvman.2021.112168
conv_905

Smiljanić D, de Gennaro B, Daković A, Galzerano B, Germinario C, Izzo F, Rottinghaus GE, Langella A. Removal of non-steroidal anti-inflammatory drugs from water by zeolite-rich composites: The interference of inorganic anions on the ibuprofen and naproxen adsorption. in Journal of Environmental Management. 2021;286.
doi:10.1016/j.jenvman.2021.112168
conv_905 .

Smiljanić, Danijela, de Gennaro, Bruno, Daković, Aleksandra, Galzerano, Barbara, Germinario, Chiara, Izzo, Francesco, Rottinghaus, George E., Langella, Alessio, "Removal of non-steroidal anti-inflammatory drugs from water by zeolite-rich composites: The interference of inorganic anions on the ibuprofen and naproxen adsorption" in Journal of Environmental Management, 286 (2021),
https://doi.org/10.1016/j.jenvman.2021.112168 .,
conv_905 .

TY  - JOUR
AU  - Smiljanić, Danijela
AU  - Daković, Aleksandra
AU  - Obradović, Milena
AU  - Ožegović, Milica
AU  - Izzo, Francesco
AU  - Germinario, Chiara
AU  - de Gennaro, Bruno
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/579
AB  - This work aimed to test composites (surfactant modified zeolites prepared by treatment of natural zeolites-clinoptilolite (IZ CLI) and/or phillipsite (PHIL75)-rich tuffs with two different amounts of cationic surfactants: cetylpyridinium chloride (CPyCl) and Arquad(R) 2HT-75 (ARQ)) for the adsorption of salicylic acid (SA)-a common contaminant of emerging concern. Adsorption of SA was studied at different initial drug concentrations (in the range of 2-100 mg/L) in water solution. The Langmuir isotherm model showed the highest adsorption was achieved by bilayer composite of IZ CLI and CPyCl-around 11 mg/g. Kinetic runs were performed by using the initial drug concentration of 20 mg/L in the time interval from 0 to 75 min and pseudo-second order had good correlation with experimental data. The influence of the four different temperatures on the SA adsorption was also investigated and thermodynamic parameters suggested that the adsorption drug onto composites is an exothermic and nonspontaneous process, followed by the decrease of randomness at the solid/liquid interface during the adsorption. Zeta potential and Fourier-transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR) had been performed for the characterization of composites after adsorption of SA confirming the presence of the drug at composite surfaces.
PB  - MDPI, Basel
T2  - Materials
T1  - Application of Surfactant Modified Natural Zeolites for the Removal of Salicylic Acid-A Contaminant of Emerging Concern
IS  - 24
VL  - 14
DO  - 10.3390/ma14247728
UR  - conv_930
ER  - 

@article{
author = "Smiljanić, Danijela and Daković, Aleksandra and Obradović, Milena and Ožegović, Milica and Izzo, Francesco and Germinario, Chiara and de Gennaro, Bruno",
year = "2021",
abstract = "This work aimed to test composites (surfactant modified zeolites prepared by treatment of natural zeolites-clinoptilolite (IZ CLI) and/or phillipsite (PHIL75)-rich tuffs with two different amounts of cationic surfactants: cetylpyridinium chloride (CPyCl) and Arquad(R) 2HT-75 (ARQ)) for the adsorption of salicylic acid (SA)-a common contaminant of emerging concern. Adsorption of SA was studied at different initial drug concentrations (in the range of 2-100 mg/L) in water solution. The Langmuir isotherm model showed the highest adsorption was achieved by bilayer composite of IZ CLI and CPyCl-around 11 mg/g. Kinetic runs were performed by using the initial drug concentration of 20 mg/L in the time interval from 0 to 75 min and pseudo-second order had good correlation with experimental data. The influence of the four different temperatures on the SA adsorption was also investigated and thermodynamic parameters suggested that the adsorption drug onto composites is an exothermic and nonspontaneous process, followed by the decrease of randomness at the solid/liquid interface during the adsorption. Zeta potential and Fourier-transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR) had been performed for the characterization of composites after adsorption of SA confirming the presence of the drug at composite surfaces.",
publisher = "MDPI, Basel",
journal = "Materials",
title = "Application of Surfactant Modified Natural Zeolites for the Removal of Salicylic Acid-A Contaminant of Emerging Concern",
number = "24",
volume = "14",
doi = "10.3390/ma14247728",
url = "conv_930"
}

Smiljanić, D., Daković, A., Obradović, M., Ožegović, M., Izzo, F., Germinario, C.,& de Gennaro, B.. (2021). Application of Surfactant Modified Natural Zeolites for the Removal of Salicylic Acid-A Contaminant of Emerging Concern. in Materials
MDPI, Basel., 14(24).
https://doi.org/10.3390/ma14247728
conv_930

Smiljanić D, Daković A, Obradović M, Ožegović M, Izzo F, Germinario C, de Gennaro B. Application of Surfactant Modified Natural Zeolites for the Removal of Salicylic Acid-A Contaminant of Emerging Concern. in Materials. 2021;14(24).
doi:10.3390/ma14247728
conv_930 .

Smiljanić, Danijela, Daković, Aleksandra, Obradović, Milena, Ožegović, Milica, Izzo, Francesco, Germinario, Chiara, de Gennaro, Bruno, "Application of Surfactant Modified Natural Zeolites for the Removal of Salicylic Acid-A Contaminant of Emerging Concern" in Materials, 14, no. 24 (2021),
https://doi.org/10.3390/ma14247728 .,
conv_930 .

TY  - THES
AU  - Smiljanić, Danijela
PY  - 2020
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1016
AB  - In this study, composites of two zeolite-rich rocks were modified with cationic surfactants cetylpyridinium chloride (containing one hydrophobic tail) and Arquad® 2HT-75 (having two hydrophobic tails) and tested for the adsorption of contaminants of emerging concern – diclofenac, ibuprofen, naproxen, and ketoprofen.
Modifying a clinoptilolite- and phillipsite-rich tuffs with different amounts of selected surfactants resulted in the preparation of composites with monolayer or bilayer of each surfactant at zeolitic surfaces. Starting materials and prepared composites were characterized by ATR–FTIR and STA coupled with EGA. The point of the zero charge was determined for starting materials and composites, providing the information of materials surface properties and their buffering capacities. Zeta potential measurements confirmed that the negative charge of the natural zeolites was compensated and close to zero when surfactants formed monolayers at the zeolitic surface or reversed to positive when bilayers of surfactants are present at the zeolitic surface. Extensive washing of the composites and repeated zeta potential measurements have shown that surfactants were unstable at the zeolite surface, especially in bilayer formation. However, composites with bilayers prepared using the two-tailed surfactant Arquad® 2HT-75 had excellent stability. These results suggested that SMNZs could be tailored for safe applications for water treatment purposes.
The capabilities of the prepared sorbents to adsorb four drugs were estimated by the determination of adsorption isotherms and kinetic runs. Maximum adsorption capacities, obtained from the Langmuir model, were in the range from 1-35 mg/g, where the best results were achieved with composites containing bilayers of surfactants at the zeolitic surfaces. Physicochemical properties (pKa and log Kow) of investigated drugs helped explain the mechanism of their adsorption by SMNZs. Between the two used zeolite-rich tuffs, composites prepared using clinoptilolite-rich tuff had the better performance. As far as the two surfactants are considered, composites with cetylpyridinium chloride gave better results. Using the best performing adsorbent, drug adsorption isotherms were conducted in the natural water collected from Grindstone creek (Columbia, Missouri, USA) to have a more realistic system.
Consequently, a slight decrease in diclofenac and ibuprofen adsorption was observed, while adsorption of NAP and KET was quite similar. Kinetic runs were performed in distilled water as well as in the presence of inorganic ions (sulfates and bicarbonates), and these interfering agents have caused an adsorption decrease for bilayer composites. For comparison reasons, kinetic runs for each drug were performed using activated carbon under similar experimental conditions. ATR-FTIR analysis and zeta potential measurements were performed on composites after adsorption of drugs, confirming the presence of drugs at zeolitic surfaces without any change of structures of composites.
PB  - Benevento,: University of Sannio-Department of Science and Technology
T1  - Surfactant modified natural zeolites as adsorbents for contaminants of emerging concern: Non-Steroidal Anti-Inflammatory drugs
EP  - 110
SP  - 1
ER  - 

@phdthesis{
author = "Smiljanić, Danijela",
year = "2020",
abstract = "In this study, composites of two zeolite-rich rocks were modified with cationic surfactants cetylpyridinium chloride (containing one hydrophobic tail) and Arquad® 2HT-75 (having two hydrophobic tails) and tested for the adsorption of contaminants of emerging concern – diclofenac, ibuprofen, naproxen, and ketoprofen.
Modifying a clinoptilolite- and phillipsite-rich tuffs with different amounts of selected surfactants resulted in the preparation of composites with monolayer or bilayer of each surfactant at zeolitic surfaces. Starting materials and prepared composites were characterized by ATR–FTIR and STA coupled with EGA. The point of the zero charge was determined for starting materials and composites, providing the information of materials surface properties and their buffering capacities. Zeta potential measurements confirmed that the negative charge of the natural zeolites was compensated and close to zero when surfactants formed monolayers at the zeolitic surface or reversed to positive when bilayers of surfactants are present at the zeolitic surface. Extensive washing of the composites and repeated zeta potential measurements have shown that surfactants were unstable at the zeolite surface, especially in bilayer formation. However, composites with bilayers prepared using the two-tailed surfactant Arquad® 2HT-75 had excellent stability. These results suggested that SMNZs could be tailored for safe applications for water treatment purposes.
The capabilities of the prepared sorbents to adsorb four drugs were estimated by the determination of adsorption isotherms and kinetic runs. Maximum adsorption capacities, obtained from the Langmuir model, were in the range from 1-35 mg/g, where the best results were achieved with composites containing bilayers of surfactants at the zeolitic surfaces. Physicochemical properties (pKa and log Kow) of investigated drugs helped explain the mechanism of their adsorption by SMNZs. Between the two used zeolite-rich tuffs, composites prepared using clinoptilolite-rich tuff had the better performance. As far as the two surfactants are considered, composites with cetylpyridinium chloride gave better results. Using the best performing adsorbent, drug adsorption isotherms were conducted in the natural water collected from Grindstone creek (Columbia, Missouri, USA) to have a more realistic system.
Consequently, a slight decrease in diclofenac and ibuprofen adsorption was observed, while adsorption of NAP and KET was quite similar. Kinetic runs were performed in distilled water as well as in the presence of inorganic ions (sulfates and bicarbonates), and these interfering agents have caused an adsorption decrease for bilayer composites. For comparison reasons, kinetic runs for each drug were performed using activated carbon under similar experimental conditions. ATR-FTIR analysis and zeta potential measurements were performed on composites after adsorption of drugs, confirming the presence of drugs at zeolitic surfaces without any change of structures of composites.",
publisher = "Benevento,: University of Sannio-Department of Science and Technology",
title = "Surfactant modified natural zeolites as adsorbents for contaminants of emerging concern: Non-Steroidal Anti-Inflammatory drugs",
pages = "110-1"
}

Smiljanić, D.. (2020). Surfactant modified natural zeolites as adsorbents for contaminants of emerging concern: Non-Steroidal Anti-Inflammatory drugs. 
Benevento,: University of Sannio-Department of Science and Technology., 1-110.

Smiljanić D. Surfactant modified natural zeolites as adsorbents for contaminants of emerging concern: Non-Steroidal Anti-Inflammatory drugs. 2020;:1-110..

Smiljanić, Danijela, "Surfactant modified natural zeolites as adsorbents for contaminants of emerging concern: Non-Steroidal Anti-Inflammatory drugs" (2020):1-110.