TY  - CONF
AU  - Petrović, Jelena
AU  - Ercegović, Marija
AU  - Simić, Marija
AU  - Koprivica, Marija
AU  - Dimitrijević, Jelena
PY  - 2023
UR  - https://www.cpcmconf.org/
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1215
AB  - Water pollution caused by industrial effluents without prior purification treatment represents one of the serious environmental concerns in contemporary times. Lately, due to its surface characteristics, pronounced chemical reactivity, and efficient regeneration ability, hydrochar obtained by hydrothermal carbonization of waste biomass has been explored as sustainable adsorbents for the removal of different pollutants. Besides, potential disadvantages of this material, such as low specific surface area and porosity, are easily overcome by surface modifications and composites synthesis. Previous reported studies have shown that chemical methods that include hydrogen peroxide or alkalis treatment, and incorporation of metals onto hydrochar surface can significantly improve its adsorption performances. Within this study, the potential application of hydrochars from different precursors and its composites as efficient sorbents of organic dyes and heavy metals from aqueous solutions will be discussed. Special attention will be directed towards structural changes caused by modification, achieved adsorption capacities and potential adsorption mechanisms. In general, the valorisation of hydrochar as a polluter sorbent solves the problems of sustainable and efficient material for purification and disposal of waste with permanent consequences to the environment.
C3  - The 10th Global Conference on Polymer and Composite Materials (PCM 2023)
T1  - Hydrochar and Its Composites for Highly Efficient Pollutant Removal
EP  - 15
SP  - 14
ER  - 

@conference{
author = "Petrović, Jelena and Ercegović, Marija and Simić, Marija and Koprivica, Marija and Dimitrijević, Jelena",
year = "2023",
abstract = "Water pollution caused by industrial effluents without prior purification treatment represents one of the serious environmental concerns in contemporary times. Lately, due to its surface characteristics, pronounced chemical reactivity, and efficient regeneration ability, hydrochar obtained by hydrothermal carbonization of waste biomass has been explored as sustainable adsorbents for the removal of different pollutants. Besides, potential disadvantages of this material, such as low specific surface area and porosity, are easily overcome by surface modifications and composites synthesis. Previous reported studies have shown that chemical methods that include hydrogen peroxide or alkalis treatment, and incorporation of metals onto hydrochar surface can significantly improve its adsorption performances. Within this study, the potential application of hydrochars from different precursors and its composites as efficient sorbents of organic dyes and heavy metals from aqueous solutions will be discussed. Special attention will be directed towards structural changes caused by modification, achieved adsorption capacities and potential adsorption mechanisms. In general, the valorisation of hydrochar as a polluter sorbent solves the problems of sustainable and efficient material for purification and disposal of waste with permanent consequences to the environment.",
journal = "The 10th Global Conference on Polymer and Composite Materials (PCM 2023)",
title = "Hydrochar and Its Composites for Highly Efficient Pollutant Removal",
pages = "15-14"
}

Petrović, J., Ercegović, M., Simić, M., Koprivica, M.,& Dimitrijević, J.. (2023). Hydrochar and Its Composites for Highly Efficient Pollutant Removal. in The 10th Global Conference on Polymer and Composite Materials (PCM 2023), 14-15.

Petrović J, Ercegović M, Simić M, Koprivica M, Dimitrijević J. Hydrochar and Its Composites for Highly Efficient Pollutant Removal. in The 10th Global Conference on Polymer and Composite Materials (PCM 2023). 2023;:14-15..

Petrović, Jelena, Ercegović, Marija, Simić, Marija, Koprivica, Marija, Dimitrijević, Jelena, "Hydrochar and Its Composites for Highly Efficient Pollutant Removal" in The 10th Global Conference on Polymer and Composite Materials (PCM 2023) (2023):14-15.

TY  - CONF
AU  - Jevtić, Sanja
AU  - Dimitrijević, Jelena
AU  - Petrović, Jelena
AU  - Dikić, Jelena
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/860
AB  - Natural zeolite-clinoptilolite (from Vranjska Banja deposit in Serbia) and synthetic Beta zeolite,
were amin-functionalized using (3-aminopropyl)-triethoxysilane (APTES). The results of the
Fourier transform infrared spectroscopy and thermogravimetric analysis confirmed the presence of
amino groups derived from APTES onto the modified zeolite surface. APTES-enriched zeolite was
further used as an adsorbent of silver ions from aqueous solutions. Natural zeolite-clinoptilolite
showed a higher adsorption capacity (96 mg Ag/g), compared to beta zeolite (54 mg Ag/g) which is
attributed to the presence of exchangeable cations in the structure of clinoptilolite. The kinetic data
follows the pseudo-second-order model which indicates a chemical interaction between silver ions
and functional amino groups on the surface of the zeolite. Ag-APTES and APTES-enriched zeolites
further were studied as antibacterial agents toward the pathogenic bacteria Gram-negative
Escherichia coli DSM 498 and Gram-positive Staphylococcus aureus ATCC 25923. Based on the

results, it was concluded that the APTES-zeolites do not exhibit antibacterial activity while Ag-
APTES enriched zeolites shows antibacterial effect toward both examined bacterial strains.

Antibacterial activity is attributed to the presence of silver ions.
PB  - Banja Luka : University in Banja Luka, Faculty of Technology
C3  - XIV CONFERENCE OF CHEMISTS, TECHNOLOGISTS AND ENVIRONMENTALISTS OF REPUBLIC OF SRPSKA
T1  - Antibacterial activity of surface amine-functionalized silver-enriched zeolite
EP  - 178
SP  - 178
ER  - 

@conference{
author = "Jevtić, Sanja and Dimitrijević, Jelena and Petrović, Jelena and Dikić, Jelena",
year = "2022",
abstract = "Natural zeolite-clinoptilolite (from Vranjska Banja deposit in Serbia) and synthetic Beta zeolite,
were amin-functionalized using (3-aminopropyl)-triethoxysilane (APTES). The results of the
Fourier transform infrared spectroscopy and thermogravimetric analysis confirmed the presence of
amino groups derived from APTES onto the modified zeolite surface. APTES-enriched zeolite was
further used as an adsorbent of silver ions from aqueous solutions. Natural zeolite-clinoptilolite
showed a higher adsorption capacity (96 mg Ag/g), compared to beta zeolite (54 mg Ag/g) which is
attributed to the presence of exchangeable cations in the structure of clinoptilolite. The kinetic data
follows the pseudo-second-order model which indicates a chemical interaction between silver ions
and functional amino groups on the surface of the zeolite. Ag-APTES and APTES-enriched zeolites
further were studied as antibacterial agents toward the pathogenic bacteria Gram-negative
Escherichia coli DSM 498 and Gram-positive Staphylococcus aureus ATCC 25923. Based on the

results, it was concluded that the APTES-zeolites do not exhibit antibacterial activity while Ag-
APTES enriched zeolites shows antibacterial effect toward both examined bacterial strains.

Antibacterial activity is attributed to the presence of silver ions.",
publisher = "Banja Luka : University in Banja Luka, Faculty of Technology",
journal = "XIV CONFERENCE OF CHEMISTS, TECHNOLOGISTS AND ENVIRONMENTALISTS OF REPUBLIC OF SRPSKA",
title = "Antibacterial activity of surface amine-functionalized silver-enriched zeolite",
pages = "178-178"
}

Jevtić, S., Dimitrijević, J., Petrović, J.,& Dikić, J.. (2022). Antibacterial activity of surface amine-functionalized silver-enriched zeolite. in XIV CONFERENCE OF CHEMISTS, TECHNOLOGISTS AND ENVIRONMENTALISTS OF REPUBLIC OF SRPSKA
Banja Luka : University in Banja Luka, Faculty of Technology., 178-178.

Jevtić S, Dimitrijević J, Petrović J, Dikić J. Antibacterial activity of surface amine-functionalized silver-enriched zeolite. in XIV CONFERENCE OF CHEMISTS, TECHNOLOGISTS AND ENVIRONMENTALISTS OF REPUBLIC OF SRPSKA. 2022;:178-178..

Jevtić, Sanja, Dimitrijević, Jelena, Petrović, Jelena, Dikić, Jelena, "Antibacterial activity of surface amine-functionalized silver-enriched zeolite" in XIV CONFERENCE OF CHEMISTS, TECHNOLOGISTS AND ENVIRONMENTALISTS OF REPUBLIC OF SRPSKA (2022):178-178.