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  - Petrović, Jelena
AU  - Ercegović, Marija
AU  - Simić, Marija
AU  - Koprivica, Marija
AU  - Dimitrijević, Jelena
AU  - Marković, Marija
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/974
AB  - This study examined Mg/Fe-pyro-hydrochar produced from grape pomace as potential sorbent for Cu2+
ions. Obtained results show that the Mg/Fe-modification increases the adsorption capacity for five times.
To evaluate the effectiveness of produced sorbent, Langmuir, Freundlich, Sips and Redlich-Peterson
isotherm models were applied to batch adsorption results. According to applied models Cu2+ adsorption at
equilibrium fitted the Sips isotherm model, with a maximum achieved capacity of 75 mg/g. Spectroscopic
analysis reveal that oxygenated active sites and aromatic groups on pyro-hydrochar surface participate in
Cu2+ions binding. In general, preliminary findings from this paper offers perspective to effective utilization
of waste biomass as an efficient adsorbents for Cu2+ ions removal.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - 54th International October Conference on Mining and Metallurgy
T1  - Mg/Fe-modified hydrochar with promoted adsorption performances
EP  - 273
SP  - 270
ER  - 

@conference{
author = "Petrović, Jelena and Ercegović, Marija and Simić, Marija and Koprivica, Marija and Dimitrijević, Jelena and Marković, Marija",
year = "2023",
abstract = "This study examined Mg/Fe-pyro-hydrochar produced from grape pomace as potential sorbent for Cu2+
ions. Obtained results show that the Mg/Fe-modification increases the adsorption capacity for five times.
To evaluate the effectiveness of produced sorbent, Langmuir, Freundlich, Sips and Redlich-Peterson
isotherm models were applied to batch adsorption results. According to applied models Cu2+ adsorption at
equilibrium fitted the Sips isotherm model, with a maximum achieved capacity of 75 mg/g. Spectroscopic
analysis reveal that oxygenated active sites and aromatic groups on pyro-hydrochar surface participate in
Cu2+ions binding. In general, preliminary findings from this paper offers perspective to effective utilization
of waste biomass as an efficient adsorbents for Cu2+ ions removal.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "54th International October Conference on Mining and Metallurgy",
title = "Mg/Fe-modified hydrochar with promoted adsorption performances",
pages = "273-270"
}

Petrović, J., Ercegović, M., Simić, M., Koprivica, M., Dimitrijević, J.,& Marković, M.. (2023). Mg/Fe-modified hydrochar with promoted adsorption performances. in 54th International October Conference on Mining and Metallurgy
Bor : University of Belgrade, Technical Faculty in Bor., 270-273.

Petrović J, Ercegović M, Simić M, Koprivica M, Dimitrijević J, Marković M. Mg/Fe-modified hydrochar with promoted adsorption performances. in 54th International October Conference on Mining and Metallurgy. 2023;:270-273..

Petrović, Jelena, Ercegović, Marija, Simić, Marija, Koprivica, Marija, Dimitrijević, Jelena, Marković, Marija, "Mg/Fe-modified hydrochar with promoted adsorption performances" in 54th International October Conference on Mining and Metallurgy (2023):270-273.

TY  - CONF
AU  - Radulović, Dragan
AU  - Jovanović, Vladimir
AU  - Ivošević, Branislav
AU  - Todorović, Dejan
AU  - Milićević, Sonja
AU  - Marković, Marija
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1071
AB  - Boron is a rare element from the group of non-metals and it occurs in nature in over 250
boron-bearing minerals-borates. Turkey has the largest borate reserves and is their largest producer.
Serbia has significant borate resources, for now without exploitation and processing. This paper presents
the results of investigating two borate samples from the deposit ""Pobrđe. The following properties were
determined on borate samples: free and hygroscopic moisture, granulometric composition, chemical
composition, mineralogical analysis by size classes, and XRD analysis.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - XV International Mineral Processing and recycling Conference (IMPRC)
T1  - Investigation of the possibility of valorization of two borate samples from the deposit "Pobrđe" – Baljevac
EP  - 366
SP  - 361
ER  - 

@conference{
author = "Radulović, Dragan and Jovanović, Vladimir and Ivošević, Branislav and Todorović, Dejan and Milićević, Sonja and Marković, Marija",
year = "2023",
abstract = "Boron is a rare element from the group of non-metals and it occurs in nature in over 250
boron-bearing minerals-borates. Turkey has the largest borate reserves and is their largest producer.
Serbia has significant borate resources, for now without exploitation and processing. This paper presents
the results of investigating two borate samples from the deposit ""Pobrđe. The following properties were
determined on borate samples: free and hygroscopic moisture, granulometric composition, chemical
composition, mineralogical analysis by size classes, and XRD analysis.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "XV International Mineral Processing and recycling Conference (IMPRC)",
title = "Investigation of the possibility of valorization of two borate samples from the deposit "Pobrđe" – Baljevac",
pages = "366-361"
}

Radulović, D., Jovanović, V., Ivošević, B., Todorović, D., Milićević, S.,& Marković, M.. (2023). Investigation of the possibility of valorization of two borate samples from the deposit "Pobrđe" – Baljevac. in XV International Mineral Processing and recycling Conference (IMPRC)
Bor : University of Belgrade, Technical Faculty in Bor., 361-366.

Radulović D, Jovanović V, Ivošević B, Todorović D, Milićević S, Marković M. Investigation of the possibility of valorization of two borate samples from the deposit "Pobrđe" – Baljevac. in XV International Mineral Processing and recycling Conference (IMPRC). 2023;:361-366..

Radulović, Dragan, Jovanović, Vladimir, Ivošević, Branislav, Todorović, Dejan, Milićević, Sonja, Marković, Marija, "Investigation of the possibility of valorization of two borate samples from the deposit "Pobrđe" – Baljevac" in XV International Mineral Processing and recycling Conference (IMPRC) (2023):361-366.

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  - THES
AU  - Marković, Marija
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1017
AB  - Hemijskom modifikacijom zeolita površinski aktivnim supstancama kao što su dugolančani organski katjoni dobijaju se materijali sa hidrofobnijim površinama u odnosu na polazni zeolit koji imaju afinitet za adsorpciju slabo polarnih molekula. U ovoj doktorskoj disertaciji prirodni zeolit filipsit iz ležišta u okolini Napulja u Italiji modifikovan je površinski aktivnim supstancama cetilpiridinijum-hloridom i heksadeciltrimetilamonijum-bromidom. Dobijeni uzorci organo-filipsita su okarakterisani određivanjem specifične površine, infracrvenom spektroskopijom sa Furijeovom transformacijom (FTIC), simultanim termijskim analizama (TG/DTA), određivanjem zeta potencijala i određivanjem tačke nultog naelektrisanja. Polazni uzorak filipsita je pored ovih metoda okarakterisan i rendgensko difrakcionom (XRPD) analizom, skenirajućom elektronskom mikroskopijom sa energetski-disperzivnom rendgenskom analizom (SEM-EDS), određivanjem hemijskog sastava i određivanjem ukupnog i spoljašnjeg kapaciteta katjonske izmene. U zavisnosti od količine organskih katjona upotrebljenih za modifikaciju, na površini filipsita se formira monosloj ili dvosloj organske faze. Pri formiranju monosloja dolazi do jonske izmene neorganskih katjona na površini filipsita sa cetilpiridinijum i heksadeciltrimetilamonijum jonima, dok se pri formiranju dvosloja pored jonske izmene javljaju i hidrofobne interakcije između alkilnih lanaca organskih katjona. Pokazano je da modifikacijom nije došlo do promena osnovne strukture minerala i da su organski katjoni prisutni samo na površini filipsita. Organo-filipsiti su nakon karakterizacije ispitivani kao adsorbenti slabo polarnih organskih molekula i to: mikotoksina (zearalenon, ohratoksin A, aflatoksin B1) i lekovite supstance (natrijum diklofenak).
Zearalenon i ohratoksin A su se efikasno adsorbovali na organo-filipsitima u odnosu na polazni filipsit, koji je pokazao nisku adsorpciju ovih mikotoksina. Utvrđeno je da su organski katjoni na površini filipsita aktivna mesta na kojima se adsorbuju zearalenon i ohratoksin A, kao i da tip organskog katjona nema veći uticaj na adsorpciju ovih toksina. Za razliku od zearalenona čija je adsorpcija pH nezavisna, adsorpcija ohratoksina A zavisi od pH sredine. S obzirom da je u ispitivanjima adsorpcije mikotoksina najviše ispitivan prirodni zeolit klinoptilolit, rezultati adsorpcije na filipsitu modifikovanom cetilpiridinijum jonom su upoređeni sa rezultatima adsorpcije na klinoptilolitu modifikovanom istim organskim katjonom. Utvrđeno je da su organo-filipsiti jednako efikasni u adsorpciji zearalenona i ohratoksina A kao i organo-klinoptiloliti. Aflatoksin B1 se efikasno adsorbovao na organo-filipsitima kao i na polaznom filipsitu, što ukazuje da su adsorpcioni centri kod nemodifikovanog filipsita neorganski katjoni prisutni na površini minerala dok kod organo-filipsita organski katjoni stvaraju nove adsorpcione centre. Poredeći rezultate adsorpcije aflatoksina B1 na filipsitu i klinoptilolitu, viša adsorpcija je postignuta na klinoptilolitu, što ukazuje da na adsorpciju ovog toksina utiče i vrsta neorganskih katjona na površini zeolita a ne samo njihova količina. Međutim kada se uporedi adsorpcija aflatoksina B1 na zeolitima, filipsitu i klinoptilolitu, sa adsorpcijom na montmorilonitu uočava se znatno viša adsorpcija na montmorilonitu što je posledica razlike u strukturama ova dva minerala. Natrijum diklofenak se efikasno adsorbovao na organo-filipsitma, za razliku od polaznog filipsita koji praktično ne adsorbuje natrijum diklofenak. Za adsorpciju natrijum diklofenaka odgovorne su elektrostatičke interakcije anjonskog oblika natrijum diklofenaka i pozitivno naelektrisane „glave“ organskog katjona kao i hidrofobne interakcije između hidrofobnog dela natrijum diklofenaka i alkilnih lanaca organskih katjona. Karakterizacija organo-filipsita nakon adsorpcije natrijum diklofenaka je pokazala da su organo-filipsiti strukturno stabilni.
Organo-filipsiti dobijeni modifikacijom površine filipsita cetilpiridinijum i heksadeciltrimetilamonijum jonom su efikasni adsorbenti mikotoksina (zearalenon, ohratoksin A,
aflatoksin B1) i lekovite supstance (natrijum diklofenak) i mogli bi naći praktičnu primenu u ishrani životinja kao aditivi stočnoj hrani i u farmaciji kao nosači aktivne farmaceutske supstance.
AB  - Chemical modification of zeolite with surfactants such as long-chain organic cations yields materials with more hydrophobic surfaces than the starting zeolite that have an affinity for adsorption of low polar molecules. In this doctoral dissertation, natural zeolite phillipsite from a deposit near Naples in Italy was modified with surfactants: cetylpyridinium-chloride and hexadecyltrimethylammonium-bromide. The obtained organo-phillipsite samples were characterized by determination of specific surface area, Fourier transform infrared spectroscopy (FTIR), coupled thermal analysis methods (TG/DTA), determination of zeta potential and determination of the point of zero charge. In addition to these methods, the initial phillipsite sample was characterized by X-ray powder diffraction (XRPD) analysis, scanning electron microscopy and energy dispersive X-ray spectroscopy (SEM-EDS), determination of chemical composition and determination of total and external cation exchange capacity. Depending on the amount of organic cations used for modification, a monolayer or bilayer of the organic phase is formed on the surface of the phillipsite. During the formation of the monolayer, ion exchange of inorganic cations on the surface of the phillipsite with cetylpyridinium and hexadecyltrimethylammonium ions occurs, while during the formation of the bilayer, hydrophobic interactions between the alkyl chains of organic cations occur in addition to the ion exchange. It has been shown that the modification did not change the basic structure of the mineral and that organic cations are present only on the surface of the phillipsite. After characterization, organo-philipsites were tested as adsorbents of low polar organic molecules: mycotoxins (zearalenone, ochratoxin A, aflatoxin B1) and drug (diclofenac sodium).
Zearalenone and ochratoxin A were efficiently adsorbed on organo-phillipsites compared to the initial phillipsite, which showed low adsorption of these mycotoxins. It was found that organic cations on the surface of philipsite are active sites where zearalenone and ochratoxin A are adsorbed, and that the type of organic cation has no major effect on the adsorption of these toxins. Unlike zearalenone, whose adsorption is pH independent, the adsorption of ochratoxin A depends on the pH of the medium. Since the natural zeolite clinoptilolite was the most investigated in mycotoxin adsorption studies, the results of adsorption on cetylpyridinium modified phillipsite were compared with the results of adsorption on clinoptilolite modified with the same organic cation. Organo-phillipsites were found to be as effective in the adsorption of zearalenone and ochratoxin A as organo-clinoptilolites. Aflatoxin B1 was efficiently adsorbed on organo-phillipsites as well as on the initial phillipsite, which indicates that adsorption centers in unmodified phillipsite are inorganic cations present on the mineral surface while in organo-phillipsites organic cations create new adsorption centers. Comparing the results of adsorption of aflatoxin B1 on phillipsite and clinoptilolite, higher adsorption was achieved on clinoptilolite, which indicates that the adsorption of this toxin is influenced by the type of inorganic cations on the surface of zeolite and not just their amount. However, when comparing the adsorption of aflatoxin B1 on zeolites, phillipsite and clinoptilolite, with the adsorption on montmorillonite, significantly higher adsorption on montmorillonite is observed due to the difference in the structures of these two minerals. Diclofenac sodium was efficiently adsorbed on organo-phillipsites, in contrast to the initial phillipsite, which practically does not adsorb diclofenac sodium. Electrostatic interactions of the anionic form of diclofenac sodium and the positively charged „head“ of the organic cation as well as the hydrophobic interactions between the hydrophobic part of the diclofenac sodium and the alkyl chains of organic cations are responsible for the adsorption of diclofenac sodium. Characterization of organo-phillipsites after adsorption of diclofenac sodium showed that organo-philipsites are structurally stable.
Organo-phillipsites obtained by modifying the surface of phillipsite with cetylpyridinium and hexadecyltrimethylammonium ion are effective adsorbents of mycotoxins (zearalenone, ochratoxin A, aflatoxin B1) and drug (diclofenac sodium) and could find practical application in animal nutrition as feed additives and in pharmacy as carriers of active pharmaceutical ingredient.
PB  - Beograd : Univerzitet u Beogradu, Fakultet za fizičku hemiju
T1  - Funkcionalizacija filipsita cetilpiridinijum-hloridom i heksadeciltrimetilamonijum-bromidom i njegova potencijalna primena
EP  - 92
SP  - 1
ER  - 

@phdthesis{
author = "Marković, Marija",
year = "2022",
abstract = "Hemijskom modifikacijom zeolita površinski aktivnim supstancama kao što su dugolančani organski katjoni dobijaju se materijali sa hidrofobnijim površinama u odnosu na polazni zeolit koji imaju afinitet za adsorpciju slabo polarnih molekula. U ovoj doktorskoj disertaciji prirodni zeolit filipsit iz ležišta u okolini Napulja u Italiji modifikovan je površinski aktivnim supstancama cetilpiridinijum-hloridom i heksadeciltrimetilamonijum-bromidom. Dobijeni uzorci organo-filipsita su okarakterisani određivanjem specifične površine, infracrvenom spektroskopijom sa Furijeovom transformacijom (FTIC), simultanim termijskim analizama (TG/DTA), određivanjem zeta potencijala i određivanjem tačke nultog naelektrisanja. Polazni uzorak filipsita je pored ovih metoda okarakterisan i rendgensko difrakcionom (XRPD) analizom, skenirajućom elektronskom mikroskopijom sa energetski-disperzivnom rendgenskom analizom (SEM-EDS), određivanjem hemijskog sastava i određivanjem ukupnog i spoljašnjeg kapaciteta katjonske izmene. U zavisnosti od količine organskih katjona upotrebljenih za modifikaciju, na površini filipsita se formira monosloj ili dvosloj organske faze. Pri formiranju monosloja dolazi do jonske izmene neorganskih katjona na površini filipsita sa cetilpiridinijum i heksadeciltrimetilamonijum jonima, dok se pri formiranju dvosloja pored jonske izmene javljaju i hidrofobne interakcije između alkilnih lanaca organskih katjona. Pokazano je da modifikacijom nije došlo do promena osnovne strukture minerala i da su organski katjoni prisutni samo na površini filipsita. Organo-filipsiti su nakon karakterizacije ispitivani kao adsorbenti slabo polarnih organskih molekula i to: mikotoksina (zearalenon, ohratoksin A, aflatoksin B1) i lekovite supstance (natrijum diklofenak).
Zearalenon i ohratoksin A su se efikasno adsorbovali na organo-filipsitima u odnosu na polazni filipsit, koji je pokazao nisku adsorpciju ovih mikotoksina. Utvrđeno je da su organski katjoni na površini filipsita aktivna mesta na kojima se adsorbuju zearalenon i ohratoksin A, kao i da tip organskog katjona nema veći uticaj na adsorpciju ovih toksina. Za razliku od zearalenona čija je adsorpcija pH nezavisna, adsorpcija ohratoksina A zavisi od pH sredine. S obzirom da je u ispitivanjima adsorpcije mikotoksina najviše ispitivan prirodni zeolit klinoptilolit, rezultati adsorpcije na filipsitu modifikovanom cetilpiridinijum jonom su upoređeni sa rezultatima adsorpcije na klinoptilolitu modifikovanom istim organskim katjonom. Utvrđeno je da su organo-filipsiti jednako efikasni u adsorpciji zearalenona i ohratoksina A kao i organo-klinoptiloliti. Aflatoksin B1 se efikasno adsorbovao na organo-filipsitima kao i na polaznom filipsitu, što ukazuje da su adsorpcioni centri kod nemodifikovanog filipsita neorganski katjoni prisutni na površini minerala dok kod organo-filipsita organski katjoni stvaraju nove adsorpcione centre. Poredeći rezultate adsorpcije aflatoksina B1 na filipsitu i klinoptilolitu, viša adsorpcija je postignuta na klinoptilolitu, što ukazuje da na adsorpciju ovog toksina utiče i vrsta neorganskih katjona na površini zeolita a ne samo njihova količina. Međutim kada se uporedi adsorpcija aflatoksina B1 na zeolitima, filipsitu i klinoptilolitu, sa adsorpcijom na montmorilonitu uočava se znatno viša adsorpcija na montmorilonitu što je posledica razlike u strukturama ova dva minerala. Natrijum diklofenak se efikasno adsorbovao na organo-filipsitma, za razliku od polaznog filipsita koji praktično ne adsorbuje natrijum diklofenak. Za adsorpciju natrijum diklofenaka odgovorne su elektrostatičke interakcije anjonskog oblika natrijum diklofenaka i pozitivno naelektrisane „glave“ organskog katjona kao i hidrofobne interakcije između hidrofobnog dela natrijum diklofenaka i alkilnih lanaca organskih katjona. Karakterizacija organo-filipsita nakon adsorpcije natrijum diklofenaka je pokazala da su organo-filipsiti strukturno stabilni.
Organo-filipsiti dobijeni modifikacijom površine filipsita cetilpiridinijum i heksadeciltrimetilamonijum jonom su efikasni adsorbenti mikotoksina (zearalenon, ohratoksin A,
aflatoksin B1) i lekovite supstance (natrijum diklofenak) i mogli bi naći praktičnu primenu u ishrani životinja kao aditivi stočnoj hrani i u farmaciji kao nosači aktivne farmaceutske supstance., Chemical modification of zeolite with surfactants such as long-chain organic cations yields materials with more hydrophobic surfaces than the starting zeolite that have an affinity for adsorption of low polar molecules. In this doctoral dissertation, natural zeolite phillipsite from a deposit near Naples in Italy was modified with surfactants: cetylpyridinium-chloride and hexadecyltrimethylammonium-bromide. The obtained organo-phillipsite samples were characterized by determination of specific surface area, Fourier transform infrared spectroscopy (FTIR), coupled thermal analysis methods (TG/DTA), determination of zeta potential and determination of the point of zero charge. In addition to these methods, the initial phillipsite sample was characterized by X-ray powder diffraction (XRPD) analysis, scanning electron microscopy and energy dispersive X-ray spectroscopy (SEM-EDS), determination of chemical composition and determination of total and external cation exchange capacity. Depending on the amount of organic cations used for modification, a monolayer or bilayer of the organic phase is formed on the surface of the phillipsite. During the formation of the monolayer, ion exchange of inorganic cations on the surface of the phillipsite with cetylpyridinium and hexadecyltrimethylammonium ions occurs, while during the formation of the bilayer, hydrophobic interactions between the alkyl chains of organic cations occur in addition to the ion exchange. It has been shown that the modification did not change the basic structure of the mineral and that organic cations are present only on the surface of the phillipsite. After characterization, organo-philipsites were tested as adsorbents of low polar organic molecules: mycotoxins (zearalenone, ochratoxin A, aflatoxin B1) and drug (diclofenac sodium).
Zearalenone and ochratoxin A were efficiently adsorbed on organo-phillipsites compared to the initial phillipsite, which showed low adsorption of these mycotoxins. It was found that organic cations on the surface of philipsite are active sites where zearalenone and ochratoxin A are adsorbed, and that the type of organic cation has no major effect on the adsorption of these toxins. Unlike zearalenone, whose adsorption is pH independent, the adsorption of ochratoxin A depends on the pH of the medium. Since the natural zeolite clinoptilolite was the most investigated in mycotoxin adsorption studies, the results of adsorption on cetylpyridinium modified phillipsite were compared with the results of adsorption on clinoptilolite modified with the same organic cation. Organo-phillipsites were found to be as effective in the adsorption of zearalenone and ochratoxin A as organo-clinoptilolites. Aflatoxin B1 was efficiently adsorbed on organo-phillipsites as well as on the initial phillipsite, which indicates that adsorption centers in unmodified phillipsite are inorganic cations present on the mineral surface while in organo-phillipsites organic cations create new adsorption centers. Comparing the results of adsorption of aflatoxin B1 on phillipsite and clinoptilolite, higher adsorption was achieved on clinoptilolite, which indicates that the adsorption of this toxin is influenced by the type of inorganic cations on the surface of zeolite and not just their amount. However, when comparing the adsorption of aflatoxin B1 on zeolites, phillipsite and clinoptilolite, with the adsorption on montmorillonite, significantly higher adsorption on montmorillonite is observed due to the difference in the structures of these two minerals. Diclofenac sodium was efficiently adsorbed on organo-phillipsites, in contrast to the initial phillipsite, which practically does not adsorb diclofenac sodium. Electrostatic interactions of the anionic form of diclofenac sodium and the positively charged „head“ of the organic cation as well as the hydrophobic interactions between the hydrophobic part of the diclofenac sodium and the alkyl chains of organic cations are responsible for the adsorption of diclofenac sodium. Characterization of organo-phillipsites after adsorption of diclofenac sodium showed that organo-philipsites are structurally stable.
Organo-phillipsites obtained by modifying the surface of phillipsite with cetylpyridinium and hexadecyltrimethylammonium ion are effective adsorbents of mycotoxins (zearalenone, ochratoxin A, aflatoxin B1) and drug (diclofenac sodium) and could find practical application in animal nutrition as feed additives and in pharmacy as carriers of active pharmaceutical ingredient.",
publisher = "Beograd : Univerzitet u Beogradu, Fakultet za fizičku hemiju",
title = "Funkcionalizacija filipsita cetilpiridinijum-hloridom i heksadeciltrimetilamonijum-bromidom i njegova potencijalna primena",
pages = "92-1"
}

Marković, M.. (2022). Funkcionalizacija filipsita cetilpiridinijum-hloridom i heksadeciltrimetilamonijum-bromidom i njegova potencijalna primena. 
Beograd : Univerzitet u Beogradu, Fakultet za fizičku hemiju., 1-92.

Marković M. Funkcionalizacija filipsita cetilpiridinijum-hloridom i heksadeciltrimetilamonijum-bromidom i njegova potencijalna primena. 2022;:1-92..

Marković, Marija, "Funkcionalizacija filipsita cetilpiridinijum-hloridom i heksadeciltrimetilamonijum-bromidom i njegova potencijalna primena" (2022):1-92.

TY  - JOUR
AU  - Šoštarić, Tatjana
AU  - Petrović, Marija
AU  - Stojanović, Jovica
AU  - Marković, Marija
AU  - Avdalović, Jelena
AU  - Hosseini-Bandegharaei, Ahmad
AU  - Lopičić, Zorica
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/622
AB  - A low-cost waste biomass generated from a food industry, apricot shells, was subjected to alkali modification in order to compare morphology, crystalline structure and thermal stability of native and modified biomass, accompanied by their cellulose-rich fractions. The surface morphology and structure of compared samples were analysed by the scanning electron microscopy (SEM) and mercury porosimetry. Furthermore, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and thermal analysis (TG/DTA) were applied. The results have shown that after alkaline treatment, inter- and intra-particle porosity in the material rises, resulting in increase of the total surface area. The XRD diffractograms showed that crystallinity index increased together with crystallite size, suggesting that modified sample has more ordered crystalline structure than native sample (also confirmed by the FTIR analysis). Although the cellulose-rich fraction extracted from the alkali-modified sample showed higher thermal stability, the overall thermal analysis revealed that alkali-modified biomass has lower thermal stability than the native sample. This indicates that this type of modification will improve the fuel properties of this lignocellulosic biomass and imply its possible application in energy recovery process.
PB  - Springer Heidelberg, Heidelberg
T2  - Biomass Conversion and Biorefinery
T1  - Structural changes of waste biomass induced by alkaline treatment: the effect on crystallinity and thermal properties
EP  - 2387
IS  - 7
SP  - 2377
VL  - 12
DO  - 10.1007/s13399-020-00766-2
UR  - conv_880
ER  - 

@article{
author = "Šoštarić, Tatjana and Petrović, Marija and Stojanović, Jovica and Marković, Marija and Avdalović, Jelena and Hosseini-Bandegharaei, Ahmad and Lopičić, Zorica",
year = "2022",
abstract = "A low-cost waste biomass generated from a food industry, apricot shells, was subjected to alkali modification in order to compare morphology, crystalline structure and thermal stability of native and modified biomass, accompanied by their cellulose-rich fractions. The surface morphology and structure of compared samples were analysed by the scanning electron microscopy (SEM) and mercury porosimetry. Furthermore, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and thermal analysis (TG/DTA) were applied. The results have shown that after alkaline treatment, inter- and intra-particle porosity in the material rises, resulting in increase of the total surface area. The XRD diffractograms showed that crystallinity index increased together with crystallite size, suggesting that modified sample has more ordered crystalline structure than native sample (also confirmed by the FTIR analysis). Although the cellulose-rich fraction extracted from the alkali-modified sample showed higher thermal stability, the overall thermal analysis revealed that alkali-modified biomass has lower thermal stability than the native sample. This indicates that this type of modification will improve the fuel properties of this lignocellulosic biomass and imply its possible application in energy recovery process.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Biomass Conversion and Biorefinery",
title = "Structural changes of waste biomass induced by alkaline treatment: the effect on crystallinity and thermal properties",
pages = "2387-2377",
number = "7",
volume = "12",
doi = "10.1007/s13399-020-00766-2",
url = "conv_880"
}

Šoštarić, T., Petrović, M., Stojanović, J., Marković, M., Avdalović, J., Hosseini-Bandegharaei, A.,& Lopičić, Z.. (2022). Structural changes of waste biomass induced by alkaline treatment: the effect on crystallinity and thermal properties. in Biomass Conversion and Biorefinery
Springer Heidelberg, Heidelberg., 12(7), 2377-2387.
https://doi.org/10.1007/s13399-020-00766-2
conv_880

Šoštarić T, Petrović M, Stojanović J, Marković M, Avdalović J, Hosseini-Bandegharaei A, Lopičić Z. Structural changes of waste biomass induced by alkaline treatment: the effect on crystallinity and thermal properties. in Biomass Conversion and Biorefinery. 2022;12(7):2377-2387.
doi:10.1007/s13399-020-00766-2
conv_880 .

Šoštarić, Tatjana, Petrović, Marija, Stojanović, Jovica, Marković, Marija, Avdalović, Jelena, Hosseini-Bandegharaei, Ahmad, Lopičić, Zorica, "Structural changes of waste biomass induced by alkaline treatment: the effect on crystallinity and thermal properties" in Biomass Conversion and Biorefinery, 12, no. 7 (2022):2377-2387,
https://doi.org/10.1007/s13399-020-00766-2 .,
conv_880 .

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  - JOUR
AU  - Spasojević, Milica
AU  - Daković, Aleksandra
AU  - Rottinghaus, George E.
AU  - Obradović, Milena
AU  - Krajišnik, Danina
AU  - Marković, Marija
AU  - Krstić, Jugoslav
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/573
AB  - A natural kaolin from Serbia was modified with different amounts of octadecyldimethylbenzyl ammonium (ODMBA) - (25, 50 and 90% of kaolin cation exchange capacity). Samples were denoted as OKR-25, OKR-50 and OKR-90. Several methods (FTIR spectroscopy, thermal analysis, zeta potential measurements, and N2 physisorption) were used for characterization of the organokaolinites. Adsorption of the common mycotoxins ochratoxin A (OCHRA) and zearalenone (ZEN) by the organokaolinites was investigated at different levels of solid phase in suspension, different initial mycotoxin concentrations and different pH values. The natural kaolin was not effective in binding OCHRA or ZEN. Adsorption of both mycotoxins by organokaolinites increased with increasing amounts of solid phase as well as with increasing levels of surfactant on the kaolin surface. OCHRA and ZEN adsorption by all organokaolinites followed non-linear adsorption isotherms, at pH 3, 7 and 9. The maximum adsorption capacity for OCHRA adsorption was at pH 3 (4.8 mg/g for OKR-25, 26.7 mg/g for OKR-50 and 39.2 mg/g for OKR-90) that was calculated from the Langmuir model. Much lower OCHRA adsorption capacities were found at pH 7 and 9 (from 0.8 mg/g to 6.9 mg/g at pH 7 and from 1.1 mg/g to 4.6 mg/g at pH 9). The following adsorption capacities for ZEN were obtained from the Langmuir isotherms, at pH 3: 4.5 mg/g for OKR-25, 12.0 mg/g for OKR-50 and 13.5 mg/g for OKR-90. At pH 7, adsorption of ZEN was 5.7 mg/g for OKR25, 15.3 mg/g for OKR-90 and 14. 4 mg/g for OKR-90. At pH 9, ZEN adsorption capacities were 2.4, 14.1 and 8.1 mg/g for OKR-25, OKR-50 and OKR-90, respectively. Thus, at the lowest amount of ODMBA at the kaolin surface, adsorption of ZEN was similar at pH 3 and 7, while a slightly lower value was obtained for its adsorption at pH 9. With increasing amounts of organic phase at the kaolin surface, the adsorption of ZEN was practically independent of pH. Adsorption of both mycotoxins was dependent on the amount of ODMBA ions at the kaolin surface as well as on their forms in solution.
PB  - Elsevier, Amsterdam
T2  - Applied Clay Science
T1  - Influence of surface coverage of kaolin with surfactant ions on adsorption of ochratoxin A and zearalenone
VL  - 205
DO  - 10.1016/j.clay.2021.106040
UR  - conv_909
ER  - 

@article{
author = "Spasojević, Milica and Daković, Aleksandra and Rottinghaus, George E. and Obradović, Milena and Krajišnik, Danina and Marković, Marija and Krstić, Jugoslav",
year = "2021",
abstract = "A natural kaolin from Serbia was modified with different amounts of octadecyldimethylbenzyl ammonium (ODMBA) - (25, 50 and 90% of kaolin cation exchange capacity). Samples were denoted as OKR-25, OKR-50 and OKR-90. Several methods (FTIR spectroscopy, thermal analysis, zeta potential measurements, and N2 physisorption) were used for characterization of the organokaolinites. Adsorption of the common mycotoxins ochratoxin A (OCHRA) and zearalenone (ZEN) by the organokaolinites was investigated at different levels of solid phase in suspension, different initial mycotoxin concentrations and different pH values. The natural kaolin was not effective in binding OCHRA or ZEN. Adsorption of both mycotoxins by organokaolinites increased with increasing amounts of solid phase as well as with increasing levels of surfactant on the kaolin surface. OCHRA and ZEN adsorption by all organokaolinites followed non-linear adsorption isotherms, at pH 3, 7 and 9. The maximum adsorption capacity for OCHRA adsorption was at pH 3 (4.8 mg/g for OKR-25, 26.7 mg/g for OKR-50 and 39.2 mg/g for OKR-90) that was calculated from the Langmuir model. Much lower OCHRA adsorption capacities were found at pH 7 and 9 (from 0.8 mg/g to 6.9 mg/g at pH 7 and from 1.1 mg/g to 4.6 mg/g at pH 9). The following adsorption capacities for ZEN were obtained from the Langmuir isotherms, at pH 3: 4.5 mg/g for OKR-25, 12.0 mg/g for OKR-50 and 13.5 mg/g for OKR-90. At pH 7, adsorption of ZEN was 5.7 mg/g for OKR25, 15.3 mg/g for OKR-90 and 14. 4 mg/g for OKR-90. At pH 9, ZEN adsorption capacities were 2.4, 14.1 and 8.1 mg/g for OKR-25, OKR-50 and OKR-90, respectively. Thus, at the lowest amount of ODMBA at the kaolin surface, adsorption of ZEN was similar at pH 3 and 7, while a slightly lower value was obtained for its adsorption at pH 9. With increasing amounts of organic phase at the kaolin surface, the adsorption of ZEN was practically independent of pH. Adsorption of both mycotoxins was dependent on the amount of ODMBA ions at the kaolin surface as well as on their forms in solution.",
publisher = "Elsevier, Amsterdam",
journal = "Applied Clay Science",
title = "Influence of surface coverage of kaolin with surfactant ions on adsorption of ochratoxin A and zearalenone",
volume = "205",
doi = "10.1016/j.clay.2021.106040",
url = "conv_909"
}

Spasojević, M., Daković, A., Rottinghaus, G. E., Obradović, M., Krajišnik, D., Marković, M.,& Krstić, J.. (2021). Influence of surface coverage of kaolin with surfactant ions on adsorption of ochratoxin A and zearalenone. in Applied Clay Science
Elsevier, Amsterdam., 205.
https://doi.org/10.1016/j.clay.2021.106040
conv_909

Spasojević M, Daković A, Rottinghaus GE, Obradović M, Krajišnik D, Marković M, Krstić J. Influence of surface coverage of kaolin with surfactant ions on adsorption of ochratoxin A and zearalenone. in Applied Clay Science. 2021;205.
doi:10.1016/j.clay.2021.106040
conv_909 .

Spasojević, Milica, Daković, Aleksandra, Rottinghaus, George E., Obradović, Milena, Krajišnik, Danina, Marković, Marija, Krstić, Jugoslav, "Influence of surface coverage of kaolin with surfactant ions on adsorption of ochratoxin A and zearalenone" in Applied Clay Science, 205 (2021),
https://doi.org/10.1016/j.clay.2021.106040 .,
conv_909 .

TY  - CONF
AU  - Obradović, Milena
AU  - Daković, Aleksandra
AU  - Rottinghaus, George E.
AU  - Spasojević, Milica
AU  - Marković, Marija
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/737
AB  - The contamination of the natural aquatic environment by pharmaceuticals is a serious environmental problem due to their extensive use in human health and animal husbandry. One of the most efficient technique for removal of pharmaceuticals from water is their adsorption on activated carbons, clays and zeolites. In this study adsorption of ketoprofen (KETO), widely used non-steroidal anti-inflammatory drug, on modified kaolin was invesitgated. The natural kaolin (from Rgotina, Serbia) was modified with cationic surfactant hexadecyltrimethyl ammonium bromide in amounts equivalent to 50% and 90% of kaolin cationic exchange capacity. FTIR and DTA/TGA were used for characterisation of materials. The obtained data showed that adsorption of KETO by modified kaolin increased with increasing the amount of surfactant, as well as with increasing the amount of solid phase in the suspension (0.5 – 5.0 mg/ml). According to obtained results modified kaolin may be used as adsobent for removal of KETO from contaminated water.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Eighteenth Young Researchers’ Conference Materials Science and Engineering
T1  - Kaolin modified with cationic surfactant as a potential adsorbent for ketoprofen
EP  - 85
SP  - 85
ER  - 

@conference{
author = "Obradović, Milena and Daković, Aleksandra and Rottinghaus, George E. and Spasojević, Milica and Marković, Marija",
year = "2019",
abstract = "The contamination of the natural aquatic environment by pharmaceuticals is a serious environmental problem due to their extensive use in human health and animal husbandry. One of the most efficient technique for removal of pharmaceuticals from water is their adsorption on activated carbons, clays and zeolites. In this study adsorption of ketoprofen (KETO), widely used non-steroidal anti-inflammatory drug, on modified kaolin was invesitgated. The natural kaolin (from Rgotina, Serbia) was modified with cationic surfactant hexadecyltrimethyl ammonium bromide in amounts equivalent to 50% and 90% of kaolin cationic exchange capacity. FTIR and DTA/TGA were used for characterisation of materials. The obtained data showed that adsorption of KETO by modified kaolin increased with increasing the amount of surfactant, as well as with increasing the amount of solid phase in the suspension (0.5 – 5.0 mg/ml). According to obtained results modified kaolin may be used as adsobent for removal of KETO from contaminated water.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Eighteenth Young Researchers’ Conference Materials Science and Engineering",
title = "Kaolin modified with cationic surfactant as a potential adsorbent for ketoprofen",
pages = "85-85"
}

Obradović, M., Daković, A., Rottinghaus, G. E., Spasojević, M.,& Marković, M.. (2019). Kaolin modified with cationic surfactant as a potential adsorbent for ketoprofen. in Eighteenth Young Researchers’ Conference Materials Science and Engineering
Belgrade : Institute of Technical Sciences of SASA., 85-85.

Obradović M, Daković A, Rottinghaus GE, Spasojević M, Marković M. Kaolin modified with cationic surfactant as a potential adsorbent for ketoprofen. in Eighteenth Young Researchers’ Conference Materials Science and Engineering. 2019;:85-85..

Obradović, Milena, Daković, Aleksandra, Rottinghaus, George E., Spasojević, Milica, Marković, Marija, "Kaolin modified with cationic surfactant as a potential adsorbent for ketoprofen" in Eighteenth Young Researchers’ Conference Materials Science and Engineering (2019):85-85.

TY  - JOUR
AU  - Božović, Darko
AU  - Radulović, Dragan
AU  - Andrić, Ljubiša
AU  - Marković, Marija
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1183
AB  - Ispitivana je mogućnost korišćenja krečnjaka “Visočica” za dobijanje punioca. Ispitivani su mikronizacija, granulo-sastav, upijanje vode i ulja, i stepen bjeline. Urađena je hemijska i DTA/TG analiza. Na osnovu fizičko-hemijskih karakteristika ovaj krečnjak se može koristiti kao punioc u sledećim industrijama: za boje i lakove, kozmetičkoj i farmaceutskoj, papirnoj, gume i PVC-a, stakla, za proizvodnju životinjske hrane, livarskoj, šećera i metalurgiji. Zbog povišenog sadržaja MgO i G.Ž, ne može se koristiti u proizvodnji mineralnih đubriva. Zbog prisustva Cd, ne može se koristiti za neutralizaciju kiselih zemljišta.
PB  - JU ZAVOD ZA GEOLOŠKA ISTRAŽIVANJA CRNE GORE
T2  - Geološki glasnik
T1  - DEFINISANJE TEHNOLOŠKE ŠEME DOBIJANJA PUNIOCA ZA RAZLIČITE INDUSTRIJE NA BAZI KREČNJAKA “VISOČICA”- BJELOPAVLIĆI
EP  - 177
SP  - 163
ER  - 

@article{
author = "Božović, Darko and Radulović, Dragan and Andrić, Ljubiša and Marković, Marija",
year = "2019",
abstract = "Ispitivana je mogućnost korišćenja krečnjaka “Visočica” za dobijanje punioca. Ispitivani su mikronizacija, granulo-sastav, upijanje vode i ulja, i stepen bjeline. Urađena je hemijska i DTA/TG analiza. Na osnovu fizičko-hemijskih karakteristika ovaj krečnjak se može koristiti kao punioc u sledećim industrijama: za boje i lakove, kozmetičkoj i farmaceutskoj, papirnoj, gume i PVC-a, stakla, za proizvodnju životinjske hrane, livarskoj, šećera i metalurgiji. Zbog povišenog sadržaja MgO i G.Ž, ne može se koristiti u proizvodnji mineralnih đubriva. Zbog prisustva Cd, ne može se koristiti za neutralizaciju kiselih zemljišta.",
publisher = "JU ZAVOD ZA GEOLOŠKA ISTRAŽIVANJA CRNE GORE",
journal = "Geološki glasnik",
title = "DEFINISANJE TEHNOLOŠKE ŠEME DOBIJANJA PUNIOCA ZA RAZLIČITE INDUSTRIJE NA BAZI KREČNJAKA “VISOČICA”- BJELOPAVLIĆI",
pages = "177-163"
}

Božović, D., Radulović, D., Andrić, L.,& Marković, M.. (2019). DEFINISANJE TEHNOLOŠKE ŠEME DOBIJANJA PUNIOCA ZA RAZLIČITE INDUSTRIJE NA BAZI KREČNJAKA “VISOČICA”- BJELOPAVLIĆI. in Geološki glasnik
JU ZAVOD ZA GEOLOŠKA ISTRAŽIVANJA CRNE GORE., 163-177.

Božović D, Radulović D, Andrić L, Marković M. DEFINISANJE TEHNOLOŠKE ŠEME DOBIJANJA PUNIOCA ZA RAZLIČITE INDUSTRIJE NA BAZI KREČNJAKA “VISOČICA”- BJELOPAVLIĆI. in Geološki glasnik. 2019;:163-177..

Božović, Darko, Radulović, Dragan, Andrić, Ljubiša, Marković, Marija, "DEFINISANJE TEHNOLOŠKE ŠEME DOBIJANJA PUNIOCA ZA RAZLIČITE INDUSTRIJE NA BAZI KREČNJAKA “VISOČICA”- BJELOPAVLIĆI" in Geološki glasnik (2019):163-177.

TY  - JOUR
AU  - Radulović, Dragan
AU  - Andrić, Ljubiša
AU  - Marković, Marija
AU  - Božović, Darko
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1184
AB  - U rudnom telu rudnika „Grot“-Kriva Feja kod Vranja, povremeno se pojavljuje ruda sa veoma visokim sadržajem minerala olova (Pb) i cinka (Zn). Iz ovakve rude je zbog visokog sadržaja metaličnih minerala 85-90 %, praktično nemoguće dobiti koncentrate K/Pb i K/Zn, postupkom flotacijske koncentracije, koji je osnovni definisani postupak dobijanja koncentrata u ovom rudniku. U radu je prikazano ispitivanje mogućnosti dobijanja koncentrata K/Pb i K/Zn postupkom gravitacijske koncentracije, sitnih klasa na klatnom stolu Wilfley. U radu su detaljno opisani način pripreme rude, eksperimentalni uslovi i sam postupak izvođenja opita gravitacijske koncentracije.
PB  - JU ZAVOD ZA GEOLOŠKA ISTRAŽIVANJA CRNE GORE
T2  - Geološki glasnik
T1  - MOGUĆNOST GRAVITACIJSKE KONCENTRACIJE BOGATE Pb-Zn RUDE IZ RUDNIKA „GROT“-KRIVA FEJA KOD VRANJA
EP  - 161
SP  - 145
ER  - 

@article{
author = "Radulović, Dragan and Andrić, Ljubiša and Marković, Marija and Božović, Darko",
year = "2019",
abstract = "U rudnom telu rudnika „Grot“-Kriva Feja kod Vranja, povremeno se pojavljuje ruda sa veoma visokim sadržajem minerala olova (Pb) i cinka (Zn). Iz ovakve rude je zbog visokog sadržaja metaličnih minerala 85-90 %, praktično nemoguće dobiti koncentrate K/Pb i K/Zn, postupkom flotacijske koncentracije, koji je osnovni definisani postupak dobijanja koncentrata u ovom rudniku. U radu je prikazano ispitivanje mogućnosti dobijanja koncentrata K/Pb i K/Zn postupkom gravitacijske koncentracije, sitnih klasa na klatnom stolu Wilfley. U radu su detaljno opisani način pripreme rude, eksperimentalni uslovi i sam postupak izvođenja opita gravitacijske koncentracije.",
publisher = "JU ZAVOD ZA GEOLOŠKA ISTRAŽIVANJA CRNE GORE",
journal = "Geološki glasnik",
title = "MOGUĆNOST GRAVITACIJSKE KONCENTRACIJE BOGATE Pb-Zn RUDE IZ RUDNIKA „GROT“-KRIVA FEJA KOD VRANJA",
pages = "161-145"
}

Radulović, D., Andrić, L., Marković, M.,& Božović, D.. (2019). MOGUĆNOST GRAVITACIJSKE KONCENTRACIJE BOGATE Pb-Zn RUDE IZ RUDNIKA „GROT“-KRIVA FEJA KOD VRANJA. in Geološki glasnik
JU ZAVOD ZA GEOLOŠKA ISTRAŽIVANJA CRNE GORE., 145-161.

Radulović D, Andrić L, Marković M, Božović D. MOGUĆNOST GRAVITACIJSKE KONCENTRACIJE BOGATE Pb-Zn RUDE IZ RUDNIKA „GROT“-KRIVA FEJA KOD VRANJA. in Geološki glasnik. 2019;:145-161..

Radulović, Dragan, Andrić, Ljubiša, Marković, Marija, Božović, Darko, "MOGUĆNOST GRAVITACIJSKE KONCENTRACIJE BOGATE Pb-Zn RUDE IZ RUDNIKA „GROT“-KRIVA FEJA KOD VRANJA" in Geološki glasnik (2019):145-161.

TY  - CONF
AU  - Andrić, Ljubiša
AU  - Radulović, Dragan
AU  - Harbinja, Muhamed
AU  - Petrov, Milan
AU  - Marković, Marija
AU  - Stojanović, Jovica
AU  - Pavlović, Marko
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1158
AB  - Mikronizacija pirofilita je veliki tehnološko-tehnički problem, iz razloga što klasične mašine za usitnjavanje, ne mogu, svojim procesnim uslovima, da ga mikroniziraju do finog i posebno veoma finog granulometrijskog sastava, koji je neophodan za nove savremene domene industrijke primene. Iz ovih razloga, neophodno je dobro poznavanje njihovih fizičko-hemijskih, mineraloških, mehaničkih osobina, i posebno mehanizama procesa njihovog finog usitnjavanja (mikronizacije).Detaljnim istraživanjima kinetike mikronizirajućeg mlevenja pirofilita, dobijeni su elementi za određivanje efikasnosti rada vibracionih i ultra-centrifugalnih mlinova, a samim tim stečeni su uslovi za definisanje kako tehnoloških parametara mikronizacije, tako i parametara proizvoda mikronizacije. U isto vreme, na osnovu detaljne fizičko-hemijske, mineraloške i rentgenske karakterizacije mikroniziranih proizvoda pirofilita, uočene su određene fizičko-hemijske promene u njihovoj strukturi (prelaz pirofilita u amorfno stanje), što je sigurno posledica rada pomenutih mlinova.
PB  - Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina
C3  - X Simpozijum sa međunarodnim učešćem-“Rudarstvo 2019”
T1  - Mikronizirajuće mlevenje pirofilita-Parsović-Konjic (BiH)
EP  - 113
SP  - 103
ER  - 

@conference{
author = "Andrić, Ljubiša and Radulović, Dragan and Harbinja, Muhamed and Petrov, Milan and Marković, Marija and Stojanović, Jovica and Pavlović, Marko",
year = "2019",
abstract = "Mikronizacija pirofilita je veliki tehnološko-tehnički problem, iz razloga što klasične mašine za usitnjavanje, ne mogu, svojim procesnim uslovima, da ga mikroniziraju do finog i posebno veoma finog granulometrijskog sastava, koji je neophodan za nove savremene domene industrijke primene. Iz ovih razloga, neophodno je dobro poznavanje njihovih fizičko-hemijskih, mineraloških, mehaničkih osobina, i posebno mehanizama procesa njihovog finog usitnjavanja (mikronizacije).Detaljnim istraživanjima kinetike mikronizirajućeg mlevenja pirofilita, dobijeni su elementi za određivanje efikasnosti rada vibracionih i ultra-centrifugalnih mlinova, a samim tim stečeni su uslovi za definisanje kako tehnoloških parametara mikronizacije, tako i parametara proizvoda mikronizacije. U isto vreme, na osnovu detaljne fizičko-hemijske, mineraloške i rentgenske karakterizacije mikroniziranih proizvoda pirofilita, uočene su određene fizičko-hemijske promene u njihovoj strukturi (prelaz pirofilita u amorfno stanje), što je sigurno posledica rada pomenutih mlinova.",
publisher = "Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina",
journal = "X Simpozijum sa međunarodnim učešćem-“Rudarstvo 2019”",
title = "Mikronizirajuće mlevenje pirofilita-Parsović-Konjic (BiH)",
pages = "113-103"
}

Andrić, L., Radulović, D., Harbinja, M., Petrov, M., Marković, M., Stojanović, J.,& Pavlović, M.. (2019). Mikronizirajuće mlevenje pirofilita-Parsović-Konjic (BiH). in X Simpozijum sa međunarodnim učešćem-“Rudarstvo 2019”
Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina., 103-113.

Andrić L, Radulović D, Harbinja M, Petrov M, Marković M, Stojanović J, Pavlović M. Mikronizirajuće mlevenje pirofilita-Parsović-Konjic (BiH). in X Simpozijum sa međunarodnim učešćem-“Rudarstvo 2019”. 2019;:103-113..

Andrić, Ljubiša, Radulović, Dragan, Harbinja, Muhamed, Petrov, Milan, Marković, Marija, Stojanović, Jovica, Pavlović, Marko, "Mikronizirajuće mlevenje pirofilita-Parsović-Konjic (BiH)" in X Simpozijum sa međunarodnim učešćem-“Rudarstvo 2019” (2019):103-113.

TY  - JOUR
AU  - Spasojević, Milica
AU  - Daković, Aleksandra
AU  - Rottinghaus, George E.
AU  - Radosavljević-Mihajlović, Ana
AU  - Marković, Marija
AU  - Krajišnik, Danina
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/527
AB  - Octadecyldimethylbenzyl ammonium chloride (OA) was used as a surfactant for the preparation of organokaolin. The natural kaolin (from a plant for production of quartz sand in Rgotina, Serbia) was modified with a surfactant in amount equal to 90% of the kaolin cation exchange capacity (CEC). FTIR spectroscopy was used for characterization of the new product. FTIR spectra confirmed the presence of OA ions at the kaolin surface. Adsorption of mycotoxins - zearalenone (ZEN) and ochratoxin A (OCHRA) was studied by organokaolin at different amounts of adsorbent and pHs. Results showed that the presence of organic cations in the kaolin structure increased adsorption of both ZEN and OCHRA. Adsorption of the mycotoxins by organokaolin increased with increasing amounts of adsorbent and, at the lowest amount of solids in suspension, adsorption of ZEN and OCHRA was slightly higher at pH 7 and 9.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metallurgical & Materials Engineering
T1  - Zearalenone and ochratoxin a: adsorption by kaolin modified with surfactant
EP  - 45
IS  - 1
SP  - 39
VL  - 25
DO  - 10.30544/413
UR  - conv_848
ER  - 

@article{
author = "Spasojević, Milica and Daković, Aleksandra and Rottinghaus, George E. and Radosavljević-Mihajlović, Ana and Marković, Marija and Krajišnik, Danina",
year = "2019",
abstract = "Octadecyldimethylbenzyl ammonium chloride (OA) was used as a surfactant for the preparation of organokaolin. The natural kaolin (from a plant for production of quartz sand in Rgotina, Serbia) was modified with a surfactant in amount equal to 90% of the kaolin cation exchange capacity (CEC). FTIR spectroscopy was used for characterization of the new product. FTIR spectra confirmed the presence of OA ions at the kaolin surface. Adsorption of mycotoxins - zearalenone (ZEN) and ochratoxin A (OCHRA) was studied by organokaolin at different amounts of adsorbent and pHs. Results showed that the presence of organic cations in the kaolin structure increased adsorption of both ZEN and OCHRA. Adsorption of the mycotoxins by organokaolin increased with increasing amounts of adsorbent and, at the lowest amount of solids in suspension, adsorption of ZEN and OCHRA was slightly higher at pH 7 and 9.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metallurgical & Materials Engineering",
title = "Zearalenone and ochratoxin a: adsorption by kaolin modified with surfactant",
pages = "45-39",
number = "1",
volume = "25",
doi = "10.30544/413",
url = "conv_848"
}

Spasojević, M., Daković, A., Rottinghaus, G. E., Radosavljević-Mihajlović, A., Marković, M.,& Krajišnik, D.. (2019). Zearalenone and ochratoxin a: adsorption by kaolin modified with surfactant. in Metallurgical & Materials Engineering
Savez inženjera metalurgije Srbije, Beograd., 25(1), 39-45.
https://doi.org/10.30544/413
conv_848

Spasojević M, Daković A, Rottinghaus GE, Radosavljević-Mihajlović A, Marković M, Krajišnik D. Zearalenone and ochratoxin a: adsorption by kaolin modified with surfactant. in Metallurgical & Materials Engineering. 2019;25(1):39-45.
doi:10.30544/413
conv_848 .

Spasojević, Milica, Daković, Aleksandra, Rottinghaus, George E., Radosavljević-Mihajlović, Ana, Marković, Marija, Krajišnik, Danina, "Zearalenone and ochratoxin a: adsorption by kaolin modified with surfactant" in Metallurgical & Materials Engineering, 25, no. 1 (2019):39-45,
https://doi.org/10.30544/413 .,
conv_848 .

TY  - JOUR
AU  - Spuergin, Simon
AU  - Weisenberger, Tobias Bjorn
AU  - Marković, Marija
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/489
AB  - Subvolcanic phonolite intrusions of the Kaiserstuhl Volcanic Complex (Germany) show variable degrees of alteration. Their secondary mineralogy has been characterized by petrographic textural observations, bulk-rock powder X-ray diffraction, thermogravimetry, differential thermal analysis, and electron probe microanalysis. The alteration assemblage is dominated by various zeolites that occur in fissures, vugs, and as replacement products of primary phases within the phonolite matrix. Phonolites in the eastern Kaiserstuhl were emplaced into a sedimentary sequence and are characterized by high zeolite contents (Endhalden: 48 wt%, Fohberg: 45 wt%) with the temporal sequence: +/- thomsonite-Ca +/- mesolite - gonnardite - natrolite - analcime. In the western Kaiserstuhl zeolite contents are lower (Kirchberg: 26 wt% or less) and the crystallization sequence is: +/- thomsonite-Ca - gonnardite - natrolite - chabazite-Ca. Pseudomorphic replacement textures and barite inclusions in secondary aggregates suggest that zeolites grew at the expense of a sulfate-bearing sodalite-group mineral, i.e., hauyne. Fresh grains of sodalite-hauyne are only found at Kirchberg, whereas the pervasive alteration at Fohberg and Endhalden transformed feldspathoid minerals completely to zeolites. Zeolites formed in a continuously cooling hydrothermal regime after emplacement and solidification of phonolitic magmas. The common paragenetic sequence corresponds to a decrease in the Ca/Na ratio, as well as an increase in the Si/Al ratio with time. The shift from Ca-Na-to pure Na-zeolites is an expression of closed-system behavior in a water-rich environment at Fohberg and Endhalden, which both intruded an Oligocene pre-volcanic sedimentary unit. The late crystallization of K-bearing chabazite-Ca points to a progressively more open hydrothermal system in the Kirchberg phonolite, which was emplaced in a subaerial volcanic succession and was influenced by K-enriched fluid from leucite-bearing country rock. Therefore, the geological setting and nature of emplacement are important factors that control the degree of zeolitization of intrusive feldspathoid minerals-bearing rocks and whether a zeolite occurrence can be used as mineral deposit.
PB  - Mineralogical Soc Amer, Chantilly
T2  - American Mineralogist
T1  - Zeolite-group minerals in phonolite-hosted deposits of the Kaiserstuhl Volcanic Complex, Germany
EP  - 670
IS  - 5
SP  - 659
VL  - 104
DO  - 10.2138/am-2019-6831
UR  - conv_851
ER  - 

@article{
author = "Spuergin, Simon and Weisenberger, Tobias Bjorn and Marković, Marija",
year = "2019",
abstract = "Subvolcanic phonolite intrusions of the Kaiserstuhl Volcanic Complex (Germany) show variable degrees of alteration. Their secondary mineralogy has been characterized by petrographic textural observations, bulk-rock powder X-ray diffraction, thermogravimetry, differential thermal analysis, and electron probe microanalysis. The alteration assemblage is dominated by various zeolites that occur in fissures, vugs, and as replacement products of primary phases within the phonolite matrix. Phonolites in the eastern Kaiserstuhl were emplaced into a sedimentary sequence and are characterized by high zeolite contents (Endhalden: 48 wt%, Fohberg: 45 wt%) with the temporal sequence: +/- thomsonite-Ca +/- mesolite - gonnardite - natrolite - analcime. In the western Kaiserstuhl zeolite contents are lower (Kirchberg: 26 wt% or less) and the crystallization sequence is: +/- thomsonite-Ca - gonnardite - natrolite - chabazite-Ca. Pseudomorphic replacement textures and barite inclusions in secondary aggregates suggest that zeolites grew at the expense of a sulfate-bearing sodalite-group mineral, i.e., hauyne. Fresh grains of sodalite-hauyne are only found at Kirchberg, whereas the pervasive alteration at Fohberg and Endhalden transformed feldspathoid minerals completely to zeolites. Zeolites formed in a continuously cooling hydrothermal regime after emplacement and solidification of phonolitic magmas. The common paragenetic sequence corresponds to a decrease in the Ca/Na ratio, as well as an increase in the Si/Al ratio with time. The shift from Ca-Na-to pure Na-zeolites is an expression of closed-system behavior in a water-rich environment at Fohberg and Endhalden, which both intruded an Oligocene pre-volcanic sedimentary unit. The late crystallization of K-bearing chabazite-Ca points to a progressively more open hydrothermal system in the Kirchberg phonolite, which was emplaced in a subaerial volcanic succession and was influenced by K-enriched fluid from leucite-bearing country rock. Therefore, the geological setting and nature of emplacement are important factors that control the degree of zeolitization of intrusive feldspathoid minerals-bearing rocks and whether a zeolite occurrence can be used as mineral deposit.",
publisher = "Mineralogical Soc Amer, Chantilly",
journal = "American Mineralogist",
title = "Zeolite-group minerals in phonolite-hosted deposits of the Kaiserstuhl Volcanic Complex, Germany",
pages = "670-659",
number = "5",
volume = "104",
doi = "10.2138/am-2019-6831",
url = "conv_851"
}

Spuergin, S., Weisenberger, T. B.,& Marković, M.. (2019). Zeolite-group minerals in phonolite-hosted deposits of the Kaiserstuhl Volcanic Complex, Germany. in American Mineralogist
Mineralogical Soc Amer, Chantilly., 104(5), 659-670.
https://doi.org/10.2138/am-2019-6831
conv_851

Spuergin S, Weisenberger TB, Marković M. Zeolite-group minerals in phonolite-hosted deposits of the Kaiserstuhl Volcanic Complex, Germany. in American Mineralogist. 2019;104(5):659-670.
doi:10.2138/am-2019-6831
conv_851 .

Spuergin, Simon, Weisenberger, Tobias Bjorn, Marković, Marija, "Zeolite-group minerals in phonolite-hosted deposits of the Kaiserstuhl Volcanic Complex, Germany" in American Mineralogist, 104, no. 5 (2019):659-670,
https://doi.org/10.2138/am-2019-6831 .,
conv_851 .

Radulović, D., Andrić, L., Terzić, A., Stojanović, J., Marković, M.,& Petrov, M.. (2018). Definisanje uslova razdvajanja (separacije), posle mlevenja, u mineralnom sistemu pirofilita-kvarca u zasebne proizvode, ležišta „Parsović“ – Konjic (BiH). 
Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina..

Radulović D, Andrić L, Terzić A, Stojanović J, Marković M, Petrov M. Definisanje uslova razdvajanja (separacije), posle mlevenja, u mineralnom sistemu pirofilita-kvarca u zasebne proizvode, ležišta „Parsović“ – Konjic (BiH). 2018;..

Radulović, Dragan, Andrić, Ljubiša, Terzić, Anja, Stojanović, Jovica, Marković, Marija, Petrov, Milan, "Definisanje uslova razdvajanja (separacije), posle mlevenja, u mineralnom sistemu pirofilita-kvarca u zasebne proizvode, ležišta „Parsović“ – Konjic (BiH)" (2018).

TY  - CONF
AU  - Marković, Marija
AU  - Daković, Aleksandra
AU  - Rottinghaus, George E.
AU  - Krajišnik, Danina
AU  - Milić, Jela
AU  - Mercurio, Mariano
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/703
AB  - Introduction
Mycotoxins are secondary metabolites produced by various fungi, primarily belonging to Aspergillus, Fusarium, or Penicillium genera. The most common mycotoxins found in animal feed are the aflatoxins, ochratoxins, trichothecenes, fumonisins, zearalenone and ergot alkaloids. Consumption of mycotoxin-contaminated diet may induce acute and long-term chronic effects in animals and humans, resulting in teratogenic, carcinogenic and oestrogenic or immune-suppressive effects (Zhu et al., 2016).
One approach to reduce deleterious effects of mycotoxins is to use adsorbents in animal feed to bind mycotoxins efficiently in the gastrointestinal tract and prevent their adsorption in the digestive tract. The preferred adsorbents are aluminosilicates (natural zeolites and clay minerals). These adsorbents in their natural form are effective in binding aflatoxins but less effective in binding other mycotoxins. Chemical modification of these minerals with cationic surfactants results in an increased hydrophobicity of the surface and improved adsorption for the majority of the mycotoxins. Clinoptilolite, in its natural form, was effective in adsorbing aflatoxin B1 (AFB1), while clinoptilolite modified with cationic surfactants such as octadecyldimethylbenzyl ammonium chloride and benzalkonium chloride was effective in binding ochratoxin A (OCHRA) and zearalenone (ZEN) (Daković et al., 2005; Marković et al., 2017). Besides clinoptilolite, phillipsite modified with different levels of cetylpyridinium chloride was also shown to be an effective adsorbent for ZEN (Marković et al, 2017). Since adsorption of mycotoxins may be dependent on the type of surfactant, the aim of this research was to investigate how the modification of phillipsite with surfactant hexadecyltrimethyl ammonium bromide (HDTMA) would influence the adsorption of AFB1, OCHRA and ZEN.
Experimental Methods
A sample of Neapolitan Yellow Tuff (Campania, Italy) composed primarily of phillipsite (PHI), was used as starting material. The modified sample was prepared by treatment of a 10% aqueous suspension of starting material with the surfactant hexadecyltrimethyl ammonium bromide (HDTMA) in an amount equivalent to 100% of its external cation exchange capacity (ECEC) and denoted as PHB-100.
Mycotoxins, AFB1, OCHRA and ZEN were obtained from Sigma-Aldrich Co. Adsorption experiments were performed using the following procedure: duplicate aliquots of 0.1M phosphate buffer (pH 3 and 7) containing 2 ppm AFB1, 2 ppm OCHRA and 2 ppm ZEN in solution (10 mL) were added to 15 mL screw cap Falcon polypropylene tubes to which had been added 20, 10, 5 or 2 mg of PHI and PHB-100. In order to eliminate exogenous peaks, controls were prepared by adding 10 mL of 0.1 M phosphate buffer (pH 3 and 7) to Falcon tubes containing 10 mg of each adsorbent. All samples were placed on a rotating shaker for 30 min at room temperature, centrifuged for 5 min at 13000 rpm and 2 mL of the aqueous supernatant was removed for HPLC analysis.
Results and Discussion
Adsorption of AFB1, OCHRA and ZEN by PHI and PHB-100 at different pH values is presented in Figures 1 and 2. Adsorption of each mycotoxin increased with increasing amounts of PHI and PHB-100 in suspension. PHI showed a high adsorption for AFB1 at pH 3 and moderate adsorption at pH 7, while
adsorption of OCHRA and ZEN by PHI was low at both pH values (less than 10% for OCHRA and less than
20% for ZEN). Modified phillipsite showed increased adsorption for each mycotoxin at all investigated
amounts of adsorbents. Compared to the PHI, adsorption of AFB1 by PHB-100 was slightly increased at
pH 3 (from 80.0% for PHI to 85.2% for PHB-100), while a higher increase was observed at pH 7 (from
51.9% for PHI to 81.5% for PHB-100). A much higher increase in adsorption by PHB-100 was observed for
OCHRA and ZEN at both pH values. In conclusion both PHI and PHB-100 were efficient in the adsorption of AFB1 at pH 3, while the
presence of HDTMA at the zeolitic surface increased adsorption of AFB1 at pH 7. Unmodified PHI showed
low adsorption of OCHRA and ZEN at both pH values, while modification of phillipsite with HDTMA ions
significantly increased adsorption of both these mycotoxins.
PB  - Lublin : Lublin University of Technology
C3  - ZEOLITE 2018 - 10th International Conference on the Occurrence, Properties and Utilization of Natural Zeolites
T1  - Adsorption of mycotoxins by unmodified and modified phillipsite
EP  - 62
SP  - 61
ER  - 

@conference{
author = "Marković, Marija and Daković, Aleksandra and Rottinghaus, George E. and Krajišnik, Danina and Milić, Jela and Mercurio, Mariano",
year = "2018",
abstract = "Introduction
Mycotoxins are secondary metabolites produced by various fungi, primarily belonging to Aspergillus, Fusarium, or Penicillium genera. The most common mycotoxins found in animal feed are the aflatoxins, ochratoxins, trichothecenes, fumonisins, zearalenone and ergot alkaloids. Consumption of mycotoxin-contaminated diet may induce acute and long-term chronic effects in animals and humans, resulting in teratogenic, carcinogenic and oestrogenic or immune-suppressive effects (Zhu et al., 2016).
One approach to reduce deleterious effects of mycotoxins is to use adsorbents in animal feed to bind mycotoxins efficiently in the gastrointestinal tract and prevent their adsorption in the digestive tract. The preferred adsorbents are aluminosilicates (natural zeolites and clay minerals). These adsorbents in their natural form are effective in binding aflatoxins but less effective in binding other mycotoxins. Chemical modification of these minerals with cationic surfactants results in an increased hydrophobicity of the surface and improved adsorption for the majority of the mycotoxins. Clinoptilolite, in its natural form, was effective in adsorbing aflatoxin B1 (AFB1), while clinoptilolite modified with cationic surfactants such as octadecyldimethylbenzyl ammonium chloride and benzalkonium chloride was effective in binding ochratoxin A (OCHRA) and zearalenone (ZEN) (Daković et al., 2005; Marković et al., 2017). Besides clinoptilolite, phillipsite modified with different levels of cetylpyridinium chloride was also shown to be an effective adsorbent for ZEN (Marković et al, 2017). Since adsorption of mycotoxins may be dependent on the type of surfactant, the aim of this research was to investigate how the modification of phillipsite with surfactant hexadecyltrimethyl ammonium bromide (HDTMA) would influence the adsorption of AFB1, OCHRA and ZEN.
Experimental Methods
A sample of Neapolitan Yellow Tuff (Campania, Italy) composed primarily of phillipsite (PHI), was used as starting material. The modified sample was prepared by treatment of a 10% aqueous suspension of starting material with the surfactant hexadecyltrimethyl ammonium bromide (HDTMA) in an amount equivalent to 100% of its external cation exchange capacity (ECEC) and denoted as PHB-100.
Mycotoxins, AFB1, OCHRA and ZEN were obtained from Sigma-Aldrich Co. Adsorption experiments were performed using the following procedure: duplicate aliquots of 0.1M phosphate buffer (pH 3 and 7) containing 2 ppm AFB1, 2 ppm OCHRA and 2 ppm ZEN in solution (10 mL) were added to 15 mL screw cap Falcon polypropylene tubes to which had been added 20, 10, 5 or 2 mg of PHI and PHB-100. In order to eliminate exogenous peaks, controls were prepared by adding 10 mL of 0.1 M phosphate buffer (pH 3 and 7) to Falcon tubes containing 10 mg of each adsorbent. All samples were placed on a rotating shaker for 30 min at room temperature, centrifuged for 5 min at 13000 rpm and 2 mL of the aqueous supernatant was removed for HPLC analysis.
Results and Discussion
Adsorption of AFB1, OCHRA and ZEN by PHI and PHB-100 at different pH values is presented in Figures 1 and 2. Adsorption of each mycotoxin increased with increasing amounts of PHI and PHB-100 in suspension. PHI showed a high adsorption for AFB1 at pH 3 and moderate adsorption at pH 7, while
adsorption of OCHRA and ZEN by PHI was low at both pH values (less than 10% for OCHRA and less than
20% for ZEN). Modified phillipsite showed increased adsorption for each mycotoxin at all investigated
amounts of adsorbents. Compared to the PHI, adsorption of AFB1 by PHB-100 was slightly increased at
pH 3 (from 80.0% for PHI to 85.2% for PHB-100), while a higher increase was observed at pH 7 (from
51.9% for PHI to 81.5% for PHB-100). A much higher increase in adsorption by PHB-100 was observed for
OCHRA and ZEN at both pH values. In conclusion both PHI and PHB-100 were efficient in the adsorption of AFB1 at pH 3, while the
presence of HDTMA at the zeolitic surface increased adsorption of AFB1 at pH 7. Unmodified PHI showed
low adsorption of OCHRA and ZEN at both pH values, while modification of phillipsite with HDTMA ions
significantly increased adsorption of both these mycotoxins.",
publisher = "Lublin : Lublin University of Technology",
journal = "ZEOLITE 2018 - 10th International Conference on the Occurrence, Properties and Utilization of Natural Zeolites",
title = "Adsorption of mycotoxins by unmodified and modified phillipsite",
pages = "62-61"
}

Marković, M., Daković, A., Rottinghaus, G. E., Krajišnik, D., Milić, J.,& Mercurio, M.. (2018). Adsorption of mycotoxins by unmodified and modified phillipsite. in ZEOLITE 2018 - 10th International Conference on the Occurrence, Properties and Utilization of Natural Zeolites
Lublin : Lublin University of Technology., 61-62.

Marković M, Daković A, Rottinghaus GE, Krajišnik D, Milić J, Mercurio M. Adsorption of mycotoxins by unmodified and modified phillipsite. in ZEOLITE 2018 - 10th International Conference on the Occurrence, Properties and Utilization of Natural Zeolites. 2018;:61-62..

Marković, Marija, Daković, Aleksandra, Rottinghaus, George E., Krajišnik, Danina, Milić, Jela, Mercurio, Mariano, "Adsorption of mycotoxins by unmodified and modified phillipsite" in ZEOLITE 2018 - 10th International Conference on the Occurrence, Properties and Utilization of Natural Zeolites (2018):61-62.