TY  - CONF
AU  - Bošnjaković, Jovana
AU  - Knežević, Nataša
AU  - Marinković, Aleksandar
AU  - Manasijević, Srećko
AU  - Savić, Andrija
AU  - Milošević, Milena
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6251
AB  - Population growth, the development of agriculture, industry, and mining, caused the creation of an increasing amount of  wastewater. Due to the discharge of wastewater, without prior treatment, the quality of water resources is impaired.  Polluting substances, such as pesticides, have a negative impact on human health and the environment. Heavy pollution  of both surface and underground water is one of the biggest problems associated with the use of pesticides. They reach  human organisms indirectly via agricultural products. Most pesticides are more or less toxic, some of them are highly  soluble in water. In recent years, special attention has been paid to the development of methods for the treatment of  wastewater contaminated with pesticide residues, in order to partially reduce or eliminate their further impact on humans,  plants, and the environment. Among many processes, the photocatalytic degradation process has proven to be a very  effective process for the removal of pesticides from wastewater. Photocatalytic degradation implies the breakdown of  various types of toxic organic substances into simpler molecules, such as ions, water, etc.  In this paper, the photocatalytic degradation of the pesticide mesotrione (MS) using ZnO photocatalyst is presented. The  degradation of the pesticide compound was studied using Shimadzu 1800 analytical UV-VIS spectroscopy. As a  replacement for UVC radiation, a solar-imitated irradiation Ultra Vitalux (UV) lamp (300W) was used. Degradation  kinetics follows pseudo-first order. After 240 minutes, the MS was completely degraded.
PB  - Association of Metallurgical Engineers of Serbia (AMES)
C3  - Proceedings of the 5th Metallurgical and Materials Engineering Congress of South-East Europe, 7-10.06.2023, Trebinje, Bosnia and Herzegovina
T1  - Removal of mesotrione by heterogeneous photocatalytic treatment using uv-vis lamp as light source
SP  - 383
EP  - 387
UR  - https://hdl.handle.net/21.15107/rcub_cer_6251
ER  - 

@conference{
author = "Bošnjaković, Jovana and Knežević, Nataša and Marinković, Aleksandar and Manasijević, Srećko and Savić, Andrija and Milošević, Milena",
year = "2023",
abstract = "Population growth, the development of agriculture, industry, and mining, caused the creation of an increasing amount of  wastewater. Due to the discharge of wastewater, without prior treatment, the quality of water resources is impaired.  Polluting substances, such as pesticides, have a negative impact on human health and the environment. Heavy pollution  of both surface and underground water is one of the biggest problems associated with the use of pesticides. They reach  human organisms indirectly via agricultural products. Most pesticides are more or less toxic, some of them are highly  soluble in water. In recent years, special attention has been paid to the development of methods for the treatment of  wastewater contaminated with pesticide residues, in order to partially reduce or eliminate their further impact on humans,  plants, and the environment. Among many processes, the photocatalytic degradation process has proven to be a very  effective process for the removal of pesticides from wastewater. Photocatalytic degradation implies the breakdown of  various types of toxic organic substances into simpler molecules, such as ions, water, etc.  In this paper, the photocatalytic degradation of the pesticide mesotrione (MS) using ZnO photocatalyst is presented. The  degradation of the pesticide compound was studied using Shimadzu 1800 analytical UV-VIS spectroscopy. As a  replacement for UVC radiation, a solar-imitated irradiation Ultra Vitalux (UV) lamp (300W) was used. Degradation  kinetics follows pseudo-first order. After 240 minutes, the MS was completely degraded.",
publisher = "Association of Metallurgical Engineers of Serbia (AMES)",
journal = "Proceedings of the 5th Metallurgical and Materials Engineering Congress of South-East Europe, 7-10.06.2023, Trebinje, Bosnia and Herzegovina",
title = "Removal of mesotrione by heterogeneous photocatalytic treatment using uv-vis lamp as light source",
pages = "383-387",
url = "https://hdl.handle.net/21.15107/rcub_cer_6251"
}

Bošnjaković, J., Knežević, N., Marinković, A., Manasijević, S., Savić, A.,& Milošević, M.. (2023). Removal of mesotrione by heterogeneous photocatalytic treatment using uv-vis lamp as light source. in Proceedings of the 5th Metallurgical and Materials Engineering Congress of South-East Europe, 7-10.06.2023, Trebinje, Bosnia and Herzegovina
Association of Metallurgical Engineers of Serbia (AMES)., 383-387.
https://hdl.handle.net/21.15107/rcub_cer_6251

Bošnjaković J, Knežević N, Marinković A, Manasijević S, Savić A, Milošević M. Removal of mesotrione by heterogeneous photocatalytic treatment using uv-vis lamp as light source. in Proceedings of the 5th Metallurgical and Materials Engineering Congress of South-East Europe, 7-10.06.2023, Trebinje, Bosnia and Herzegovina. 2023;:383-387.
https://hdl.handle.net/21.15107/rcub_cer_6251 .

Bošnjaković, Jovana, Knežević, Nataša, Marinković, Aleksandar, Manasijević, Srećko, Savić, Andrija, Milošević, Milena, "Removal of mesotrione by heterogeneous photocatalytic treatment using uv-vis lamp as light source" in Proceedings of the 5th Metallurgical and Materials Engineering Congress of South-East Europe, 7-10.06.2023, Trebinje, Bosnia and Herzegovina (2023):383-387,
https://hdl.handle.net/21.15107/rcub_cer_6251 .

TY  - CONF
AU  - Milošević, Milena
AU  - Jovanović, Aleksandra A.
AU  - Batinić, Petar M.
AU  - Grujić, Dragana
AU  - Knežević, Nataša
AU  - Marinković, Aleksandar
AU  - Milanović, Jovana
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7338
AB  - The plants contain a large number of various compounds that exhibit significant antioxidant 
activity. Among them, polyphenols and flavonoids are the most studied compounds with different 
biological properties, including antioxidant activity. The functionalization of cotton fabric with natural compounds from plants results in the material with improved antioxidative properties. In this study, cotton fabrics treated with ethanol and water Thymus serpyllum L. (wild thyme) extracts were investigated in terms of antioxidant properties and chemical composition. In vitro antioxidant capacity of ethanol and water extracts, and the cotton fabric before and after functionalization was evaluated using 2,2-diphenyl-1-picrylhydrazyl (DPPH•), and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS•+) radicals scavenging capacity assays. FTIR and UV–Vis spectroscopy elucidated the structure of the cotton fabric, extracts, and functionalized cotton fabric. FTIR spectroscopy demonstrated that the structure of cellulose was dominated in cotton, and also proved the presence of a low percentage of protein, pectin, oil, fat, and wax, as well as, binding of compounds from the extract by cross-linking with long chains of structure cotton. In dry extracts, the presence of various chemical functional groups was confirmed. UV-Vis analysis identified the active components in T. serpyllum extracts. Namely, absorption values for both spectra (water and ethanol samples) at 215-253 nm, 263-384 nm, are specific for phenolic acids, and flavonoids. Also, one of the aims of the study was to investigate the influence of various extracts (water and ethanol samples) on the antioxidant activity of cotton fabric. All extracts demonstrated excellent antioxidant properties, more potent than the reference antioxidant (ascorbic acid) in both antioxidant assays (between 85-86% in DPPH and 94-96% in ABTS assays). Pure T. serpyllum water extract was the most potent in the DPPH assay (86%), while pure ethanolic extract was the most potent antioxidant in the ABTS assay (96%). The antioxidant capacity of raw cotton fabric was insufficient (4%). On the other hand, in the DPPH assay, samples of cotton fabric with extract showed moderate activity with scavenging activity of 48% and 45% for ethanol and water extracts, respectively. Additionally,
in the ABTS assay, the antioxidant activity of treated cotton fabric was 51% and 46% for ethanol 
and water extracts, respectively.
PB  - Zvornik : University of East Sarajevo, Faculty of Technology
C3  - Proceedings - VIII International Congress "Engineering, Environment and Materials in Process Industry", EEM 2023, March 20-23 2023, Jahorina
T1  - In vitro antioxidant activity of cotton fabric treated with ethanol and water Thymus serpyllum L. (wild thyme) extracts
SP  - 128
EP  - 135
UR  - https://hdl.handle.net/21.15107/rcub_cer_7338
ER  - 

@conference{
author = "Milošević, Milena and Jovanović, Aleksandra A. and Batinić, Petar M. and Grujić, Dragana and Knežević, Nataša and Marinković, Aleksandar and Milanović, Jovana",
year = "2023",
abstract = "The plants contain a large number of various compounds that exhibit significant antioxidant 
activity. Among them, polyphenols and flavonoids are the most studied compounds with different 
biological properties, including antioxidant activity. The functionalization of cotton fabric with natural compounds from plants results in the material with improved antioxidative properties. In this study, cotton fabrics treated with ethanol and water Thymus serpyllum L. (wild thyme) extracts were investigated in terms of antioxidant properties and chemical composition. In vitro antioxidant capacity of ethanol and water extracts, and the cotton fabric before and after functionalization was evaluated using 2,2-diphenyl-1-picrylhydrazyl (DPPH•), and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS•+) radicals scavenging capacity assays. FTIR and UV–Vis spectroscopy elucidated the structure of the cotton fabric, extracts, and functionalized cotton fabric. FTIR spectroscopy demonstrated that the structure of cellulose was dominated in cotton, and also proved the presence of a low percentage of protein, pectin, oil, fat, and wax, as well as, binding of compounds from the extract by cross-linking with long chains of structure cotton. In dry extracts, the presence of various chemical functional groups was confirmed. UV-Vis analysis identified the active components in T. serpyllum extracts. Namely, absorption values for both spectra (water and ethanol samples) at 215-253 nm, 263-384 nm, are specific for phenolic acids, and flavonoids. Also, one of the aims of the study was to investigate the influence of various extracts (water and ethanol samples) on the antioxidant activity of cotton fabric. All extracts demonstrated excellent antioxidant properties, more potent than the reference antioxidant (ascorbic acid) in both antioxidant assays (between 85-86% in DPPH and 94-96% in ABTS assays). Pure T. serpyllum water extract was the most potent in the DPPH assay (86%), while pure ethanolic extract was the most potent antioxidant in the ABTS assay (96%). The antioxidant capacity of raw cotton fabric was insufficient (4%). On the other hand, in the DPPH assay, samples of cotton fabric with extract showed moderate activity with scavenging activity of 48% and 45% for ethanol and water extracts, respectively. Additionally,
in the ABTS assay, the antioxidant activity of treated cotton fabric was 51% and 46% for ethanol 
and water extracts, respectively.",
publisher = "Zvornik : University of East Sarajevo, Faculty of Technology",
journal = "Proceedings - VIII International Congress "Engineering, Environment and Materials in Process Industry", EEM 2023, March 20-23 2023, Jahorina",
title = "In vitro antioxidant activity of cotton fabric treated with ethanol and water Thymus serpyllum L. (wild thyme) extracts",
pages = "128-135",
url = "https://hdl.handle.net/21.15107/rcub_cer_7338"
}

Milošević, M., Jovanović, A. A., Batinić, P. M., Grujić, D., Knežević, N., Marinković, A.,& Milanović, J.. (2023). In vitro antioxidant activity of cotton fabric treated with ethanol and water Thymus serpyllum L. (wild thyme) extracts. in Proceedings - VIII International Congress "Engineering, Environment and Materials in Process Industry", EEM 2023, March 20-23 2023, Jahorina
Zvornik : University of East Sarajevo, Faculty of Technology., 128-135.
https://hdl.handle.net/21.15107/rcub_cer_7338

Milošević M, Jovanović AA, Batinić PM, Grujić D, Knežević N, Marinković A, Milanović J. In vitro antioxidant activity of cotton fabric treated with ethanol and water Thymus serpyllum L. (wild thyme) extracts. in Proceedings - VIII International Congress "Engineering, Environment and Materials in Process Industry", EEM 2023, March 20-23 2023, Jahorina. 2023;:128-135.
https://hdl.handle.net/21.15107/rcub_cer_7338 .

Milošević, Milena, Jovanović, Aleksandra A., Batinić, Petar M., Grujić, Dragana, Knežević, Nataša, Marinković, Aleksandar, Milanović, Jovana, "In vitro antioxidant activity of cotton fabric treated with ethanol and water Thymus serpyllum L. (wild thyme) extracts" in Proceedings - VIII International Congress "Engineering, Environment and Materials in Process Industry", EEM 2023, March 20-23 2023, Jahorina (2023):128-135,
https://hdl.handle.net/21.15107/rcub_cer_7338 .

TY  - CONF
AU  - Jovanović, Aleksandar
AU  - Vuksanović, Marija
AU  - Knežević, Nataša
AU  - Bošnjaković, Jovana
AU  - Bugarčić, Mladen
AU  - Milošević, Milena
AU  - Marinković, Aleksandar
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7335
AB  - Worldwide pollution induces a negative impact on the complete environment. Modern societies are becomingmore involved in developing and implementing climate change adaptation policies as a result ofthe enormous hazards that climate change poses to human safety worldwide. One of the biggest problemsthat highly affects climate change is plastic pollution. Also, the utilization of a linear economy prevents theopportunity of solving mentioned problem. Hence, a major component of the strategy for tackling plasticpollution and trying to decrease global weather changes is an implementation of a circular economy. Plastichas to be reduced, reused, and recycled since its widespread consumption has put environmental protectionat risk. PET, also known as polyethylene terephthalate, is a prominent polymer material used forthe production of packaging, particularly plastic bottles. The majority of PET-based products are madeusing raw materials supplied from fossil fuels. However, methods based on biobased materials and recycling-modified products for obtaining novel products from waste PET have fewer greenhouse gas (GHG)emissions than the traditional method. Therefore, the subject of this paper is the innovative technology forthe fabrication of materials by PET recycling. Obtained monomer units - glycolysates were acquired by PETdepolymerization by inducing greener solutions. The resulting glycolysate was structurally modified withmaleic anhydride and finally with 2-octanol to obtain a novel plasticizer. The physicochemical characterizationof the obtained plasticizer, performed by infrared spectroscopy with Fourier transform (FTIR) andNMR spectroscopy, confirmed structural modifications. The mechanical characteristics of the final productwere tested after the plasticizers had been combined with bitumen at a range from 1 to 10 wt.% concentration.In addition, other PET recycling techniques will be presented and discussed. By comparing them,it will be determined which technique is most suitable for recycling with the smallest carbon footprint. Thesecond purpose of the research is to evaluate and contrast the financial and ecological implications of recyclingPET in comparison to other types of waste and renewable energy sources.
PB  - Novi Sad : University of Novi Sad, Faculty of Sciences
C3  - International conference on Hydro-Climate Extremes and Society
T1  - Innovative Technology for Recycling Polyethylene Terephthalate: Climate Changes, Approaches, Solutions
SP  - 35
EP  - 35
UR  - https://hdl.handle.net/21.15107/rcub_cer_7335
ER  - 

@conference{
author = "Jovanović, Aleksandar and Vuksanović, Marija and Knežević, Nataša and Bošnjaković, Jovana and Bugarčić, Mladen and Milošević, Milena and Marinković, Aleksandar",
year = "2023",
abstract = "Worldwide pollution induces a negative impact on the complete environment. Modern societies are becomingmore involved in developing and implementing climate change adaptation policies as a result ofthe enormous hazards that climate change poses to human safety worldwide. One of the biggest problemsthat highly affects climate change is plastic pollution. Also, the utilization of a linear economy prevents theopportunity of solving mentioned problem. Hence, a major component of the strategy for tackling plasticpollution and trying to decrease global weather changes is an implementation of a circular economy. Plastichas to be reduced, reused, and recycled since its widespread consumption has put environmental protectionat risk. PET, also known as polyethylene terephthalate, is a prominent polymer material used forthe production of packaging, particularly plastic bottles. The majority of PET-based products are madeusing raw materials supplied from fossil fuels. However, methods based on biobased materials and recycling-modified products for obtaining novel products from waste PET have fewer greenhouse gas (GHG)emissions than the traditional method. Therefore, the subject of this paper is the innovative technology forthe fabrication of materials by PET recycling. Obtained monomer units - glycolysates were acquired by PETdepolymerization by inducing greener solutions. The resulting glycolysate was structurally modified withmaleic anhydride and finally with 2-octanol to obtain a novel plasticizer. The physicochemical characterizationof the obtained plasticizer, performed by infrared spectroscopy with Fourier transform (FTIR) andNMR spectroscopy, confirmed structural modifications. The mechanical characteristics of the final productwere tested after the plasticizers had been combined with bitumen at a range from 1 to 10 wt.% concentration.In addition, other PET recycling techniques will be presented and discussed. By comparing them,it will be determined which technique is most suitable for recycling with the smallest carbon footprint. Thesecond purpose of the research is to evaluate and contrast the financial and ecological implications of recyclingPET in comparison to other types of waste and renewable energy sources.",
publisher = "Novi Sad : University of Novi Sad, Faculty of Sciences",
journal = "International conference on Hydro-Climate Extremes and Society",
title = "Innovative Technology for Recycling Polyethylene Terephthalate: Climate Changes, Approaches, Solutions",
pages = "35-35",
url = "https://hdl.handle.net/21.15107/rcub_cer_7335"
}

Jovanović, A., Vuksanović, M., Knežević, N., Bošnjaković, J., Bugarčić, M., Milošević, M.,& Marinković, A.. (2023). Innovative Technology for Recycling Polyethylene Terephthalate: Climate Changes, Approaches, Solutions. in International conference on Hydro-Climate Extremes and Society
Novi Sad : University of Novi Sad, Faculty of Sciences., 35-35.
https://hdl.handle.net/21.15107/rcub_cer_7335

Jovanović A, Vuksanović M, Knežević N, Bošnjaković J, Bugarčić M, Milošević M, Marinković A. Innovative Technology for Recycling Polyethylene Terephthalate: Climate Changes, Approaches, Solutions. in International conference on Hydro-Climate Extremes and Society. 2023;:35-35.
https://hdl.handle.net/21.15107/rcub_cer_7335 .

Jovanović, Aleksandar, Vuksanović, Marija, Knežević, Nataša, Bošnjaković, Jovana, Bugarčić, Mladen, Milošević, Milena, Marinković, Aleksandar, "Innovative Technology for Recycling Polyethylene Terephthalate: Climate Changes, Approaches, Solutions" in International conference on Hydro-Climate Extremes and Society (2023):35-35,
https://hdl.handle.net/21.15107/rcub_cer_7335 .

TY  - CONF
AU  - Knežević, Nataša
AU  - Jovanović, Aleksandar
AU  - Bugarčić, Mladen
AU  - Vuksanović, Marija
AU  - Milošević, Milena
AU  - Pešić, Ivan
AU  - Marinković, Aleksandar
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7401
AB  - Cotton-based membranes, due to their exceptional biocompatibility and sustainability,have attracted considerable attention in various applications, especially in the field of bio andgreen technologies. This study investigates the biodegradation potential of cotton membranesmodified with TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl) radical and citric acid (CA),with the aim of improving their properties and facilitating environmentally friendly disposal.TEMPO radicals, in conjunction with the crosslinker citric acid, are incorporated into thecellulose structure through a novel modification process. The citric acid component acted as aplasticizer, increasing the amorphous parts of the cellulose and promoting enzymatic attack.The TEMPO radical, with its nitroxyl group, contributed to the oxidation of cellulose, furtherfacilitating biodegradation.The biodegradation aspect of these modified membranes was investigated incontrolled environmental conditions (Soil Burial test), simulating natural scenarios (humidity,influence of enzymes, and bacteria). Biodegradation parameters such as weight loss,structural changes, and degradation kinetics were examined during 90 days. Characterizationof the structure was performed using FTIR and SEM methods.Our findings suggest that cellulosic membranes possess complete (100%)biodegradability after 70 days compared to unmodified membranes. Obtained result shedlight on the potential of membranes modified in this way as sustainable and biodegradablealternatives in various applications. The results emphasize their ecological nature and abilityto reduce environmental stress. Such cellulose-based materials promise a much greener futurein biotechnology, healthcare, and environmental protection.
PB  - Belgrade : University of Belgrade, Faculty of Technology and Metallurgy
C3  - International Conference: Biochemical Engineering and Biotechnology for Young Scientists, Book of abstracts
T1  - Possibility of biodegradation of cotton membrane containing TEMPO radical and citric acid
SP  - 42
EP  - 42
UR  - https://hdl.handle.net/21.15107/rcub_cer_7401
ER  - 

@conference{
author = "Knežević, Nataša and Jovanović, Aleksandar and Bugarčić, Mladen and Vuksanović, Marija and Milošević, Milena and Pešić, Ivan and Marinković, Aleksandar",
year = "2023",
abstract = "Cotton-based membranes, due to their exceptional biocompatibility and sustainability,have attracted considerable attention in various applications, especially in the field of bio andgreen technologies. This study investigates the biodegradation potential of cotton membranesmodified with TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl) radical and citric acid (CA),with the aim of improving their properties and facilitating environmentally friendly disposal.TEMPO radicals, in conjunction with the crosslinker citric acid, are incorporated into thecellulose structure through a novel modification process. The citric acid component acted as aplasticizer, increasing the amorphous parts of the cellulose and promoting enzymatic attack.The TEMPO radical, with its nitroxyl group, contributed to the oxidation of cellulose, furtherfacilitating biodegradation.The biodegradation aspect of these modified membranes was investigated incontrolled environmental conditions (Soil Burial test), simulating natural scenarios (humidity,influence of enzymes, and bacteria). Biodegradation parameters such as weight loss,structural changes, and degradation kinetics were examined during 90 days. Characterizationof the structure was performed using FTIR and SEM methods.Our findings suggest that cellulosic membranes possess complete (100%)biodegradability after 70 days compared to unmodified membranes. Obtained result shedlight on the potential of membranes modified in this way as sustainable and biodegradablealternatives in various applications. The results emphasize their ecological nature and abilityto reduce environmental stress. Such cellulose-based materials promise a much greener futurein biotechnology, healthcare, and environmental protection.",
publisher = "Belgrade : University of Belgrade, Faculty of Technology and Metallurgy",
journal = "International Conference: Biochemical Engineering and Biotechnology for Young Scientists, Book of abstracts",
title = "Possibility of biodegradation of cotton membrane containing TEMPO radical and citric acid",
pages = "42-42",
url = "https://hdl.handle.net/21.15107/rcub_cer_7401"
}

Knežević, N., Jovanović, A., Bugarčić, M., Vuksanović, M., Milošević, M., Pešić, I.,& Marinković, A.. (2023). Possibility of biodegradation of cotton membrane containing TEMPO radical and citric acid. in International Conference: Biochemical Engineering and Biotechnology for Young Scientists, Book of abstracts
Belgrade : University of Belgrade, Faculty of Technology and Metallurgy., 42-42.
https://hdl.handle.net/21.15107/rcub_cer_7401

Knežević N, Jovanović A, Bugarčić M, Vuksanović M, Milošević M, Pešić I, Marinković A. Possibility of biodegradation of cotton membrane containing TEMPO radical and citric acid. in International Conference: Biochemical Engineering and Biotechnology for Young Scientists, Book of abstracts. 2023;:42-42.
https://hdl.handle.net/21.15107/rcub_cer_7401 .

Knežević, Nataša, Jovanović, Aleksandar, Bugarčić, Mladen, Vuksanović, Marija, Milošević, Milena, Pešić, Ivan, Marinković, Aleksandar, "Possibility of biodegradation of cotton membrane containing TEMPO radical and citric acid" in International Conference: Biochemical Engineering and Biotechnology for Young Scientists, Book of abstracts (2023):42-42,
https://hdl.handle.net/21.15107/rcub_cer_7401 .

TY  - JOUR
AU  - Knežević, Nataša
AU  - Milanović, Jovana Z.
AU  - Veličković, Zlate
AU  - Milošević, Milena
AU  - Vuksanović, Marija M.
AU  - Onjia, Antonije
AU  - Marinković, Aleksandar
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7167
AB  - Oxidized cotton linters, TOCell, were used as an adsorbent or derived membrane there from by linterscross-linking with citric acid. The adsorption/desorption study of Pb2+, methylene blue (MB), and crystalviolet (CV) removal, was performed. Adsorption data fitting, obtained using the Langmuir model, gave116 mg g 1 (Pb2+), 179 mg g 1 (MB) and 482 mg g 1 (CV) at 25 ℃ for TOCell linters, while 101 mg g 1(Pb2+), 165 mg g 1 (MB) and 426 mg g 1 (CV) for TOCell membrane. After desorption dyes were subjectedto photocatalytic degradation while lead was transformed into stable lead phthalate (LP), and furtherused as filler in composites based on unsaturated polyester resins (UPR). UPR was synthesized fromwaste polyethylene terephthalate (PET). Structural characterization was performed using FTIR, SEM,and NMR methods. Composites loaded with acryloyl modified kraft lignin (A-KfL) and/or LP was testedfor tensile strength, Vickers microhardness, and fire resistance (UL-94 V method). The best mechanicaland fireproofing properties were obtained at 15 wt.% A-KfL and 40 wt.% Al(OH)3 addition. The resultsof the toxicity leaching test (TCLP) confirmed the environmentally safe stabilization of desorbed pollutantin the UPR matrix. Application of environmentally friendly membranes, susceptible to easy biodegradation, had low negative effects to the environment.
T2  - Journal of Industrial and Engineering Chemistry
T1  - A closed cycle of sustainable development: Effective removal and desorption of lead and dyes using an oxidized cellulose membrane
VL  - 126
SP  - 520
EP  - 536
DO  - 10.1016/j.jiec.2023.06.041
ER  - 

@article{
author = "Knežević, Nataša and Milanović, Jovana Z. and Veličković, Zlate and Milošević, Milena and Vuksanović, Marija M. and Onjia, Antonije and Marinković, Aleksandar",
year = "2023",
abstract = "Oxidized cotton linters, TOCell, were used as an adsorbent or derived membrane there from by linterscross-linking with citric acid. The adsorption/desorption study of Pb2+, methylene blue (MB), and crystalviolet (CV) removal, was performed. Adsorption data fitting, obtained using the Langmuir model, gave116 mg g 1 (Pb2+), 179 mg g 1 (MB) and 482 mg g 1 (CV) at 25 ℃ for TOCell linters, while 101 mg g 1(Pb2+), 165 mg g 1 (MB) and 426 mg g 1 (CV) for TOCell membrane. After desorption dyes were subjectedto photocatalytic degradation while lead was transformed into stable lead phthalate (LP), and furtherused as filler in composites based on unsaturated polyester resins (UPR). UPR was synthesized fromwaste polyethylene terephthalate (PET). Structural characterization was performed using FTIR, SEM,and NMR methods. Composites loaded with acryloyl modified kraft lignin (A-KfL) and/or LP was testedfor tensile strength, Vickers microhardness, and fire resistance (UL-94 V method). The best mechanicaland fireproofing properties were obtained at 15 wt.% A-KfL and 40 wt.% Al(OH)3 addition. The resultsof the toxicity leaching test (TCLP) confirmed the environmentally safe stabilization of desorbed pollutantin the UPR matrix. Application of environmentally friendly membranes, susceptible to easy biodegradation, had low negative effects to the environment.",
journal = "Journal of Industrial and Engineering Chemistry",
title = "A closed cycle of sustainable development: Effective removal and desorption of lead and dyes using an oxidized cellulose membrane",
volume = "126",
pages = "520-536",
doi = "10.1016/j.jiec.2023.06.041"
}

Knežević, N., Milanović, J. Z., Veličković, Z., Milošević, M., Vuksanović, M. M., Onjia, A.,& Marinković, A.. (2023). A closed cycle of sustainable development: Effective removal and desorption of lead and dyes using an oxidized cellulose membrane. in Journal of Industrial and Engineering Chemistry, 126, 520-536.
https://doi.org/10.1016/j.jiec.2023.06.041

Knežević N, Milanović JZ, Veličković Z, Milošević M, Vuksanović MM, Onjia A, Marinković A. A closed cycle of sustainable development: Effective removal and desorption of lead and dyes using an oxidized cellulose membrane. in Journal of Industrial and Engineering Chemistry. 2023;126:520-536.
doi:10.1016/j.jiec.2023.06.041 .

Knežević, Nataša, Milanović, Jovana Z., Veličković, Zlate, Milošević, Milena, Vuksanović, Marija M., Onjia, Antonije, Marinković, Aleksandar, "A closed cycle of sustainable development: Effective removal and desorption of lead and dyes using an oxidized cellulose membrane" in Journal of Industrial and Engineering Chemistry, 126 (2023):520-536,
https://doi.org/10.1016/j.jiec.2023.06.041 . .

TY  - JOUR
AU  - Vuksanović, Marija M.
AU  - Milošević, Milena D.
AU  - Knežević, Nataša
AU  - Egelja, Adela
AU  - Janković-Mandić, Ljiljana
AU  - Mladenović, Ivana O.
AU  - Marinković, Aleksandar D.
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6583
AB  - Predmet ovog istraživanja je postupak proizvodnje regranulata polivinil hlorida (PVC) korišćenjem
plastifikatora sintetisanog iz recikliranog poli(etilen tereftalata) (PET). Na ovaj način je sintetisan
plastifikator koji ne predstavlja rizik po zdravlje ljudi i životnu sredinu u skladu sa prinicima hemijskog
lizinga i zelene hemije. Dobijeni plastifikator je okarakterisan primenom elementalne analize, FTIR, i
NMR spektroskopije i određivanjem hidroksilnog i kiselinskog broja. Ispitivana su mehanička svojstva
materijala dobijenih na bazi recikliranog PVC i plastifikatora iz PET-a prema standardnim metodama
AB  - The subject of this research is the production process of polyvinyl chloride (PVC) regranulate using a plasticizer synthesized from recycled poly(ethylene terephthalate) (PET). In this way, a plasticizer was synthesized that does not pose a risk to human health and the environment in accordance with the principles of chemical leasing and green chemistry. The obtained plasticizer was characterized using elemental analysis, FTIR, and NMR spectroscopy and determination of hydroxyl and acid number. The mechanical properties of materials obtained on the basis of recycled PVC and plasticizers from PET were tested according to standard methods.
PB  - Beograd : Savez inženjera i tehničara Srbije
T2  - Tehnika
T1  - Ispitivanje mehaničkih svojstava regranulata PVC-a sa dodatkom plastifikatora iz otpadnog PET-a
T1  - Testing of the mechanical properties of reggranulate PVC with the addition of plasticizer from waste PET
VL  - 78
IS  - 4
SP  - 389
EP  - 394
DO  - 10.5937/tehnika2304389V
ER  - 

@article{
author = "Vuksanović, Marija M. and Milošević, Milena D. and Knežević, Nataša and Egelja, Adela and Janković-Mandić, Ljiljana and Mladenović, Ivana O. and Marinković, Aleksandar D.",
year = "2023",
abstract = "Predmet ovog istraživanja je postupak proizvodnje regranulata polivinil hlorida (PVC) korišćenjem
plastifikatora sintetisanog iz recikliranog poli(etilen tereftalata) (PET). Na ovaj način je sintetisan
plastifikator koji ne predstavlja rizik po zdravlje ljudi i životnu sredinu u skladu sa prinicima hemijskog
lizinga i zelene hemije. Dobijeni plastifikator je okarakterisan primenom elementalne analize, FTIR, i
NMR spektroskopije i određivanjem hidroksilnog i kiselinskog broja. Ispitivana su mehanička svojstva
materijala dobijenih na bazi recikliranog PVC i plastifikatora iz PET-a prema standardnim metodama, The subject of this research is the production process of polyvinyl chloride (PVC) regranulate using a plasticizer synthesized from recycled poly(ethylene terephthalate) (PET). In this way, a plasticizer was synthesized that does not pose a risk to human health and the environment in accordance with the principles of chemical leasing and green chemistry. The obtained plasticizer was characterized using elemental analysis, FTIR, and NMR spectroscopy and determination of hydroxyl and acid number. The mechanical properties of materials obtained on the basis of recycled PVC and plasticizers from PET were tested according to standard methods.",
publisher = "Beograd : Savez inženjera i tehničara Srbije",
journal = "Tehnika",
title = "Ispitivanje mehaničkih svojstava regranulata PVC-a sa dodatkom plastifikatora iz otpadnog PET-a, Testing of the mechanical properties of reggranulate PVC with the addition of plasticizer from waste PET",
volume = "78",
number = "4",
pages = "389-394",
doi = "10.5937/tehnika2304389V"
}

Vuksanović, M. M., Milošević, M. D., Knežević, N., Egelja, A., Janković-Mandić, L., Mladenović, I. O.,& Marinković, A. D.. (2023). Ispitivanje mehaničkih svojstava regranulata PVC-a sa dodatkom plastifikatora iz otpadnog PET-a. in Tehnika
Beograd : Savez inženjera i tehničara Srbije., 78(4), 389-394.
https://doi.org/10.5937/tehnika2304389V

Vuksanović MM, Milošević MD, Knežević N, Egelja A, Janković-Mandić L, Mladenović IO, Marinković AD. Ispitivanje mehaničkih svojstava regranulata PVC-a sa dodatkom plastifikatora iz otpadnog PET-a. in Tehnika. 2023;78(4):389-394.
doi:10.5937/tehnika2304389V .

Vuksanović, Marija M., Milošević, Milena D., Knežević, Nataša, Egelja, Adela, Janković-Mandić, Ljiljana, Mladenović, Ivana O., Marinković, Aleksandar D., "Ispitivanje mehaničkih svojstava regranulata PVC-a sa dodatkom plastifikatora iz otpadnog PET-a" in Tehnika, 78, no. 4 (2023):389-394,
https://doi.org/10.5937/tehnika2304389V . .

TY  - CONF
AU  - Knežević, Nataša
AU  - Jovanović, Aleksandar
AU  - Bošnjaković, Jovana
AU  - Milošević, Milena
AU  - Rančić, Milica
AU  - Marinković, Aleksandar
AU  - Gržetić, Jelena
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6961
AB  - This paper investigates the using potential of acryl-functionalized kraft lignin (AKL) in reducing theflammability of polymer composites based on recycled unsaturated polyester resins (UPR). Acryl functionalization ofkraft lignin was performed by direct esterification of free polyphenolic groups with acryloyl chloride, after what, theAKL was blended in UPR resin synthesized from the polyols obtained by catalytic depolymerization of wastepoly(ethylene terephthalate). The AKL was homogenized in UPR resin in different weight ratios: 2.5, 5.0, 7.5, and 12.5wt.%. Structural and dynamic-mechanical characteristics of acryl-functionalized kraft lignin and composites weredetermined using FTIR spectroscopy, dynamic-mechanical analysis (DMA), and tensile tests. The influence offunctionalization and mass fraction of AKL on tensile and thermal properties of UPR resin was studied. The thermalproperties of the composite were tested according to the standard UL-94 method, based on which the highest categoryof heat-resistant materials is a composite with 12.5 wt.% acyl-functionalized lignin.
PB  - Belgrade : The Military Technical Institute
C3  - Proceedings - 10th International Scientific Conference on Defensive Technologies, OTEH 2022, Belgrade, 13-14 October 2022
T1  - Fire-resistant composites based on acrylic-functionalized lignin and polyester resin obtained from waste poly(ethylene terephthalate)
SP  - 405
EP  - 411
UR  - https://hdl.handle.net/21.15107/rcub_cer_6961
ER  - 

@conference{
author = "Knežević, Nataša and Jovanović, Aleksandar and Bošnjaković, Jovana and Milošević, Milena and Rančić, Milica and Marinković, Aleksandar and Gržetić, Jelena",
year = "2022",
abstract = "This paper investigates the using potential of acryl-functionalized kraft lignin (AKL) in reducing theflammability of polymer composites based on recycled unsaturated polyester resins (UPR). Acryl functionalization ofkraft lignin was performed by direct esterification of free polyphenolic groups with acryloyl chloride, after what, theAKL was blended in UPR resin synthesized from the polyols obtained by catalytic depolymerization of wastepoly(ethylene terephthalate). The AKL was homogenized in UPR resin in different weight ratios: 2.5, 5.0, 7.5, and 12.5wt.%. Structural and dynamic-mechanical characteristics of acryl-functionalized kraft lignin and composites weredetermined using FTIR spectroscopy, dynamic-mechanical analysis (DMA), and tensile tests. The influence offunctionalization and mass fraction of AKL on tensile and thermal properties of UPR resin was studied. The thermalproperties of the composite were tested according to the standard UL-94 method, based on which the highest categoryof heat-resistant materials is a composite with 12.5 wt.% acyl-functionalized lignin.",
publisher = "Belgrade : The Military Technical Institute",
journal = "Proceedings - 10th International Scientific Conference on Defensive Technologies, OTEH 2022, Belgrade, 13-14 October 2022",
title = "Fire-resistant composites based on acrylic-functionalized lignin and polyester resin obtained from waste poly(ethylene terephthalate)",
pages = "405-411",
url = "https://hdl.handle.net/21.15107/rcub_cer_6961"
}

Knežević, N., Jovanović, A., Bošnjaković, J., Milošević, M., Rančić, M., Marinković, A.,& Gržetić, J.. (2022). Fire-resistant composites based on acrylic-functionalized lignin and polyester resin obtained from waste poly(ethylene terephthalate). in Proceedings - 10th International Scientific Conference on Defensive Technologies, OTEH 2022, Belgrade, 13-14 October 2022
Belgrade : The Military Technical Institute., 405-411.
https://hdl.handle.net/21.15107/rcub_cer_6961

Knežević N, Jovanović A, Bošnjaković J, Milošević M, Rančić M, Marinković A, Gržetić J. Fire-resistant composites based on acrylic-functionalized lignin and polyester resin obtained from waste poly(ethylene terephthalate). in Proceedings - 10th International Scientific Conference on Defensive Technologies, OTEH 2022, Belgrade, 13-14 October 2022. 2022;:405-411.
https://hdl.handle.net/21.15107/rcub_cer_6961 .

Knežević, Nataša, Jovanović, Aleksandar, Bošnjaković, Jovana, Milošević, Milena, Rančić, Milica, Marinković, Aleksandar, Gržetić, Jelena, "Fire-resistant composites based on acrylic-functionalized lignin and polyester resin obtained from waste poly(ethylene terephthalate)" in Proceedings - 10th International Scientific Conference on Defensive Technologies, OTEH 2022, Belgrade, 13-14 October 2022 (2022):405-411,
https://hdl.handle.net/21.15107/rcub_cer_6961 .

TY  - JOUR
AU  - Knežević, Nataša
AU  - Jovanović, Aleksandar
AU  - Bošnjaković, Jovana
AU  - Milošević, Milena
AU  - Rančić, Milica
AU  - Marinković, Aleksandar
AU  - Gržetić, Jelena
AU  - Gamoudi, Houda
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6962
AB  - U ovom radu ispitivan je potencijal korišćenja akril-funkcionalizovanog kraft lignina (AKL) u smanjenju zapaljivosti polimernih kompozita na bazi recikliranih nezasićenih poliesterskih smola (NZPS). Akrilna funkcionalizacija kraft lignina je izvedena direktnom esterifikacijom slobodnih polifenolnih grupa sa akriloil hloridom, nakon čega je AKL umešan u NZP smolu sintetizovanu od poliola dobijenih katalitičkom depolimerizacijom otpadnog poli(etilen tereftalata). AKL je homogenizovan sa NZPS pri različitim masenim udelima: 2,5, 5,0, 7,5 i 12,5 mas.%. Strukturne i dinamičko-mehaničke karakteristike akril-funkcionalizovanog kraft lignina i kompozita određene su primenom FTIR spektroskopije, dinamičkomehaničke analize (DMA) i testova jednoosnog zatezanja. Proučavan je uticaj funkcionalizacije i masenog udela AKL na zatezna i termička svojstva NZPS. Vatrootporna svojstva kompozita su ispitivana prema standardnoj UL-94V metodi, na osnovu koje je kompozit sa 12,5 tež. % akril-funkcionalizovanog lignina dostigao najvišu kategorija toplotno otpornih materijala.
AB  - This paper investigates the using potential of acryl-functionalized kraft lignin (AKL) in reducing the flammability of polymer composites based on recycled unsaturated polyester resins (UPR). Acryl functionalization of kraft lignin was performed by direct esterification of free polyphenolic groups with acryloyl chloride, after what, the AKL was blended in UPR resin synthesized from the polyols obtained by catalytic depolymerization of waste poly(ethylene terephthalate). The AKL was homogenized in UPR resin in different weight ratios: 2.5, 5.0, 7.5, and 12.5 wt.%. Structural and dynamic-mechanical characteristics of acryl-functionalized kraft lignin and composites were determined using FTIR spectroscopy, dynamicmechanical analysis (DMA), and tensile tests. The influence of functionalization and mass fraction of AKL on tensile and thermal properties of UPR resin was studied. The thermal properties of the composite were tested according to the standard UL-94 method, based on which the highest category of heat-resistant materials is a composite with 12.5 wt.% acylfunctionalized lignin.
PB  - Vojnotehnički institut, Beograd
T2  - Scientific Technical Review
T1  - Vatrootporni kompoziti na bazi akril-funkcionalizovanog lignina i poliesterske smole dobijene od otpadnog poli(etilen tereftalata)
T1  - Fire-resistant composites based on acrylic-functionalized lignin and polyester resin obtained from waste poly(ethylene terephthalate)
VL  - 72
IS  - 2
SP  - 32
EP  - 37
DO  - 10.5937/str2202032K
ER  - 

@article{
author = "Knežević, Nataša and Jovanović, Aleksandar and Bošnjaković, Jovana and Milošević, Milena and Rančić, Milica and Marinković, Aleksandar and Gržetić, Jelena and Gamoudi, Houda",
year = "2022",
abstract = "U ovom radu ispitivan je potencijal korišćenja akril-funkcionalizovanog kraft lignina (AKL) u smanjenju zapaljivosti polimernih kompozita na bazi recikliranih nezasićenih poliesterskih smola (NZPS). Akrilna funkcionalizacija kraft lignina je izvedena direktnom esterifikacijom slobodnih polifenolnih grupa sa akriloil hloridom, nakon čega je AKL umešan u NZP smolu sintetizovanu od poliola dobijenih katalitičkom depolimerizacijom otpadnog poli(etilen tereftalata). AKL je homogenizovan sa NZPS pri različitim masenim udelima: 2,5, 5,0, 7,5 i 12,5 mas.%. Strukturne i dinamičko-mehaničke karakteristike akril-funkcionalizovanog kraft lignina i kompozita određene su primenom FTIR spektroskopije, dinamičkomehaničke analize (DMA) i testova jednoosnog zatezanja. Proučavan je uticaj funkcionalizacije i masenog udela AKL na zatezna i termička svojstva NZPS. Vatrootporna svojstva kompozita su ispitivana prema standardnoj UL-94V metodi, na osnovu koje je kompozit sa 12,5 tež. % akril-funkcionalizovanog lignina dostigao najvišu kategorija toplotno otpornih materijala., This paper investigates the using potential of acryl-functionalized kraft lignin (AKL) in reducing the flammability of polymer composites based on recycled unsaturated polyester resins (UPR). Acryl functionalization of kraft lignin was performed by direct esterification of free polyphenolic groups with acryloyl chloride, after what, the AKL was blended in UPR resin synthesized from the polyols obtained by catalytic depolymerization of waste poly(ethylene terephthalate). The AKL was homogenized in UPR resin in different weight ratios: 2.5, 5.0, 7.5, and 12.5 wt.%. Structural and dynamic-mechanical characteristics of acryl-functionalized kraft lignin and composites were determined using FTIR spectroscopy, dynamicmechanical analysis (DMA), and tensile tests. The influence of functionalization and mass fraction of AKL on tensile and thermal properties of UPR resin was studied. The thermal properties of the composite were tested according to the standard UL-94 method, based on which the highest category of heat-resistant materials is a composite with 12.5 wt.% acylfunctionalized lignin.",
publisher = "Vojnotehnički institut, Beograd",
journal = "Scientific Technical Review",
title = "Vatrootporni kompoziti na bazi akril-funkcionalizovanog lignina i poliesterske smole dobijene od otpadnog poli(etilen tereftalata), Fire-resistant composites based on acrylic-functionalized lignin and polyester resin obtained from waste poly(ethylene terephthalate)",
volume = "72",
number = "2",
pages = "32-37",
doi = "10.5937/str2202032K"
}

Knežević, N., Jovanović, A., Bošnjaković, J., Milošević, M., Rančić, M., Marinković, A., Gržetić, J.,& Gamoudi, H.. (2022). Vatrootporni kompoziti na bazi akril-funkcionalizovanog lignina i poliesterske smole dobijene od otpadnog poli(etilen tereftalata). in Scientific Technical Review
Vojnotehnički institut, Beograd., 72(2), 32-37.
https://doi.org/10.5937/str2202032K

Knežević N, Jovanović A, Bošnjaković J, Milošević M, Rančić M, Marinković A, Gržetić J, Gamoudi H. Vatrootporni kompoziti na bazi akril-funkcionalizovanog lignina i poliesterske smole dobijene od otpadnog poli(etilen tereftalata). in Scientific Technical Review. 2022;72(2):32-37.
doi:10.5937/str2202032K .

Knežević, Nataša, Jovanović, Aleksandar, Bošnjaković, Jovana, Milošević, Milena, Rančić, Milica, Marinković, Aleksandar, Gržetić, Jelena, Gamoudi, Houda, "Vatrootporni kompoziti na bazi akril-funkcionalizovanog lignina i poliesterske smole dobijene od otpadnog poli(etilen tereftalata)" in Scientific Technical Review, 72, no. 2 (2022):32-37,
https://doi.org/10.5937/str2202032K . .