TY  - CONF
AU  - Šoštarić, Tatjana
AU  - Kolašinac, Stefan
AU  - Lopičić, Zorica
AU  - Atanasković, Anja
AU  - Adamović, Vladimir
AU  - Avdalović, Jelena
AU  - Bugarčić, Mladen
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6249
AB  - Growing industrialization and non-renewable resource depletion have a huge impact on alternative clean up technologies  development, inducing investigation of the renewable, low-cost waste materials. Recently, lignocellulosic waste biomass,  generated at a large scale by different industries, appeared as an attractive feedstock worldwide, due to its abundance,  availability, multi-functionality and low cost. Since the fruits production has increasing trend all over the world,  generation of lignocellulosic waste such as fruit stones (that represent approximately 1/5 of the total fruit mass) became a great environmental threat. In order to minimize negative impact on the environment, avoid greenhouse gasses emissions  and help in resource depletion by its renewable nature, it is necessary to explore its performances regarding its wide  application potential. Thermo-chemical conversion of lignocellulosic biomass in oxygen limited conditions, in order to  get biochar, has received a lot of attention recently. The biochar production requires lower energy inputs and less  expensive technology compared to activated carbon (estimation is that production cost of activated carbon are six times  higher than biochar costs).  In this paper, waste peach stones biomass was effectively converted into biochar at 500 °C under inert (Ar) atmosphere.  Pyrolysis was performed in Nabertherm 1300 muffle furnace for residence time of 1.5 h, with a heating rate of 10 °C/min,  while Ar was circulated through the sample at a rate of 100 mL/min. The raw biomass (PS) and obtained biochar (PS-B)  with particle size 0.1 mm < dp < 0.5 mm, were characterized by Scanning Electron Microscopy (SEM), Fourier transform infrared spectrometry (FTIR) and Raman spectrometry to understand physicochemical changes which have been occurred  after pyrolysis. SEM analysis revealed the increased surface area due to the visible augmentation of pores and roughness.  FTIR analysis showed that many bands present in native biomass cannot be observed in biochar, due to the conversion or  removal of the most of the functional groups. Prominent bands have confirmed presences of aromatic compounds in  biochar: at 1592 cm−1 (C=C bond stretching derived from aromatic rings in the lignin), 1030 cm-1 (alcohol C-O stretching  vibration) and in the region 900 to 700 cm−1 (originating from aromatic compounds). These finding are in accordance  with results from Raman analysis, where D and G bands (at 1350 cm-1 and 1580 cm-1 respectively), indicate the presence  of poly-aromatic hydrocarbons. Thermo-chemically modified biomass like this has a great application potential: as a pollutants sorbent, biofuel, soil  amendment, biocarriers, and in construction and electronic industries.
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  - Characterization of raw peach stones and its biochar by SEM, FTIR and Raman spectroscopy
SP  - 237
EP  - 241
UR  - https://hdl.handle.net/21.15107/rcub_cer_6249
ER  - 

@conference{
author = "Šoštarić, Tatjana and Kolašinac, Stefan and Lopičić, Zorica and Atanasković, Anja and Adamović, Vladimir and Avdalović, Jelena and Bugarčić, Mladen",
year = "2023",
abstract = "Growing industrialization and non-renewable resource depletion have a huge impact on alternative clean up technologies  development, inducing investigation of the renewable, low-cost waste materials. Recently, lignocellulosic waste biomass,  generated at a large scale by different industries, appeared as an attractive feedstock worldwide, due to its abundance,  availability, multi-functionality and low cost. Since the fruits production has increasing trend all over the world,  generation of lignocellulosic waste such as fruit stones (that represent approximately 1/5 of the total fruit mass) became a great environmental threat. In order to minimize negative impact on the environment, avoid greenhouse gasses emissions  and help in resource depletion by its renewable nature, it is necessary to explore its performances regarding its wide  application potential. Thermo-chemical conversion of lignocellulosic biomass in oxygen limited conditions, in order to  get biochar, has received a lot of attention recently. The biochar production requires lower energy inputs and less  expensive technology compared to activated carbon (estimation is that production cost of activated carbon are six times  higher than biochar costs).  In this paper, waste peach stones biomass was effectively converted into biochar at 500 °C under inert (Ar) atmosphere.  Pyrolysis was performed in Nabertherm 1300 muffle furnace for residence time of 1.5 h, with a heating rate of 10 °C/min,  while Ar was circulated through the sample at a rate of 100 mL/min. The raw biomass (PS) and obtained biochar (PS-B)  with particle size 0.1 mm < dp < 0.5 mm, were characterized by Scanning Electron Microscopy (SEM), Fourier transform infrared spectrometry (FTIR) and Raman spectrometry to understand physicochemical changes which have been occurred  after pyrolysis. SEM analysis revealed the increased surface area due to the visible augmentation of pores and roughness.  FTIR analysis showed that many bands present in native biomass cannot be observed in biochar, due to the conversion or  removal of the most of the functional groups. Prominent bands have confirmed presences of aromatic compounds in  biochar: at 1592 cm−1 (C=C bond stretching derived from aromatic rings in the lignin), 1030 cm-1 (alcohol C-O stretching  vibration) and in the region 900 to 700 cm−1 (originating from aromatic compounds). These finding are in accordance  with results from Raman analysis, where D and G bands (at 1350 cm-1 and 1580 cm-1 respectively), indicate the presence  of poly-aromatic hydrocarbons. Thermo-chemically modified biomass like this has a great application potential: as a pollutants sorbent, biofuel, soil  amendment, biocarriers, and in construction and electronic industries.",
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 = "Characterization of raw peach stones and its biochar by SEM, FTIR and Raman spectroscopy",
pages = "237-241",
url = "https://hdl.handle.net/21.15107/rcub_cer_6249"
}

Šoštarić, T., Kolašinac, S., Lopičić, Z., Atanasković, A., Adamović, V., Avdalović, J.,& Bugarčić, M.. (2023). Characterization of raw peach stones and its biochar by SEM, FTIR and Raman spectroscopy. 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)., 237-241.
https://hdl.handle.net/21.15107/rcub_cer_6249

Šoštarić T, Kolašinac S, Lopičić Z, Atanasković A, Adamović V, Avdalović J, Bugarčić M. Characterization of raw peach stones and its biochar by SEM, FTIR and Raman spectroscopy. in Proceedings of the 5th Metallurgical and Materials Engineering Congress of South-East Europe, 7-10.06.2023, Trebinje, Bosnia and Herzegovina. 2023;:237-241.
https://hdl.handle.net/21.15107/rcub_cer_6249 .

Šoštarić, Tatjana, Kolašinac, Stefan, Lopičić, Zorica, Atanasković, Anja, Adamović, Vladimir, Avdalović, Jelena, Bugarčić, Mladen, "Characterization of raw peach stones and its biochar by SEM, FTIR and Raman spectroscopy" in Proceedings of the 5th Metallurgical and Materials Engineering Congress of South-East Europe, 7-10.06.2023, Trebinje, Bosnia and Herzegovina (2023):237-241,
https://hdl.handle.net/21.15107/rcub_cer_6249 .

TY  - CONF
AU  - Jovanović, Aleksandar
AU  - Bugarčić, Mladen
AU  - Milošević, Milena
AU  - Vuksanovic, Marija
AU  - Abdualatif Abduarahman, Muna
AU  - Sokić, Miroslav
AU  - Marinković, Aleksandar
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7334
AB  - Nickel pollution of water induces several problems for the environment. The purpose of this paper was toinvestigate the adsorption of Ni2+ ions on fabricated biomembranes. The proposed adsorbent was preparedfrom epoxy and amino-functionalized waste cellulose fibers, able to participate in cross-linking with aminoacid lysine - wCell/Mn-Fe_LDH. The prepared material underwent preliminary structural characterizationby Fourier-transform infrared spectroscopy. In a batch system, the influence of pH, contact time,temperature, and initial concentration on adsorption efficiency was investigated. The effectiveness of themembrane was demonstrated by acceptable adsorption capacities of 40.49 mg g-1 obtained for Ni2+ at 45°C.The kinetic study, using the Weber-Morris model, indicates intraparticle diffusion as the rate limiting step.Adsorption mechanism physisorption was proposed based on thermodynamic behaviors. The outcomesdemonstrated that environmentally friendly sustainable technology has been successfully developed.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - 54th International October Conference on Mining and Metallurgy
T1  - Modified hybrid cellulose membrane for Nickel(ii) ions removal from industrial wastewater
SP  - 514
EP  - 517
UR  - https://hdl.handle.net/21.15107/rcub_cer_7334
ER  - 

@conference{
author = "Jovanović, Aleksandar and Bugarčić, Mladen and Milošević, Milena and Vuksanovic, Marija and Abdualatif Abduarahman, Muna and Sokić, Miroslav and Marinković, Aleksandar",
year = "2023",
abstract = "Nickel pollution of water induces several problems for the environment. The purpose of this paper was toinvestigate the adsorption of Ni2+ ions on fabricated biomembranes. The proposed adsorbent was preparedfrom epoxy and amino-functionalized waste cellulose fibers, able to participate in cross-linking with aminoacid lysine - wCell/Mn-Fe_LDH. The prepared material underwent preliminary structural characterizationby Fourier-transform infrared spectroscopy. In a batch system, the influence of pH, contact time,temperature, and initial concentration on adsorption efficiency was investigated. The effectiveness of themembrane was demonstrated by acceptable adsorption capacities of 40.49 mg g-1 obtained for Ni2+ at 45°C.The kinetic study, using the Weber-Morris model, indicates intraparticle diffusion as the rate limiting step.Adsorption mechanism physisorption was proposed based on thermodynamic behaviors. The outcomesdemonstrated that environmentally friendly sustainable technology has been successfully developed.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "54th International October Conference on Mining and Metallurgy",
title = "Modified hybrid cellulose membrane for Nickel(ii) ions removal from industrial wastewater",
pages = "514-517",
url = "https://hdl.handle.net/21.15107/rcub_cer_7334"
}

Jovanović, A., Bugarčić, M., Milošević, M., Vuksanovic, M., Abdualatif Abduarahman, M., Sokić, M.,& Marinković, A.. (2023). Modified hybrid cellulose membrane for Nickel(ii) ions removal from industrial wastewater. in 54th International October Conference on Mining and Metallurgy
Bor : University of Belgrade, Technical Faculty in Bor., 514-517.
https://hdl.handle.net/21.15107/rcub_cer_7334

Jovanović A, Bugarčić M, Milošević M, Vuksanovic M, Abdualatif Abduarahman M, Sokić M, Marinković A. Modified hybrid cellulose membrane for Nickel(ii) ions removal from industrial wastewater. in 54th International October Conference on Mining and Metallurgy. 2023;:514-517.
https://hdl.handle.net/21.15107/rcub_cer_7334 .

Jovanović, Aleksandar, Bugarčić, Mladen, Milošević, Milena, Vuksanovic, Marija, Abdualatif Abduarahman, Muna, Sokić, Miroslav, Marinković, Aleksandar, "Modified hybrid cellulose membrane for Nickel(ii) ions removal from industrial wastewater" in 54th International October Conference on Mining and Metallurgy (2023):514-517,
https://hdl.handle.net/21.15107/rcub_cer_7334 .

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  - CONF
AU  - Čutović, Natalija
AU  - Vuksanović, Marija
AU  - Milošević, Milena
AU  - Bugarčić, Mladen
AU  - Bošnjaković, Jovana
AU  - Gržetić, Jelena
AU  - Marinković, Aleksandar
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6960
AB  - Due to the increasing use and widespread of plastics, poly (ethylene terephthalate) (PET) and poly(vinyl chloride) (PVC) are becoming one of the major threats to the environment. The aim of thispaper is obtaining plasticizers from recycled PET, and hot/cold mixing thereof with PVC to producenew materials. Plasticizer was obtained from PET using ethylene glycol (EG) in the presence ofcatalyst FASCAT 4100, followed by treatment with maleic anhydride and finally 2-ethylhexanol(2-EtHex). The obtained glycolysate and plasticizer, individually or mixtures thereof, were used forthe production of polygranulates based on waste PVC in order to obtain an expanded mass ofhomogenized PVC with glycolysate/plasticizer. The abovementioned procedures and test results forthe regranulates and products indicate that the proposed technology offers a solution to the problemof waste PET and PVC through transesterification in order to obtain plasticizer based on PET andEG, called 2-EtHex/MA/РG/PET/EG/MA/2-EtHex used in the processing of PVC waste and inregranulate. The obtained regranulates are further processed by injection molding or extrusion intocommercial products such as slippers, footwear, boots, garden hoses, mats, floor mats, etc.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - Proceedings - 29th International Conference Ecological Truth and Environmental Research - EcoTER'22, 21-24 June 2022, Sokobanja, Serbia
T1  - Recycled poly(ethylene terephthalate) based – plasticizers for PVC regranulates production
SP  - 452
EP  - 458
UR  - https://hdl.handle.net/21.15107/rcub_cer_6960
ER  - 

@conference{
author = "Čutović, Natalija and Vuksanović, Marija and Milošević, Milena and Bugarčić, Mladen and Bošnjaković, Jovana and Gržetić, Jelena and Marinković, Aleksandar",
year = "2022",
abstract = "Due to the increasing use and widespread of plastics, poly (ethylene terephthalate) (PET) and poly(vinyl chloride) (PVC) are becoming one of the major threats to the environment. The aim of thispaper is obtaining plasticizers from recycled PET, and hot/cold mixing thereof with PVC to producenew materials. Plasticizer was obtained from PET using ethylene glycol (EG) in the presence ofcatalyst FASCAT 4100, followed by treatment with maleic anhydride and finally 2-ethylhexanol(2-EtHex). The obtained glycolysate and plasticizer, individually or mixtures thereof, were used forthe production of polygranulates based on waste PVC in order to obtain an expanded mass ofhomogenized PVC with glycolysate/plasticizer. The abovementioned procedures and test results forthe regranulates and products indicate that the proposed technology offers a solution to the problemof waste PET and PVC through transesterification in order to obtain plasticizer based on PET andEG, called 2-EtHex/MA/РG/PET/EG/MA/2-EtHex used in the processing of PVC waste and inregranulate. The obtained regranulates are further processed by injection molding or extrusion intocommercial products such as slippers, footwear, boots, garden hoses, mats, floor mats, etc.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "Proceedings - 29th International Conference Ecological Truth and Environmental Research - EcoTER'22, 21-24 June 2022, Sokobanja, Serbia",
title = "Recycled poly(ethylene terephthalate) based – plasticizers for PVC regranulates production",
pages = "452-458",
url = "https://hdl.handle.net/21.15107/rcub_cer_6960"
}

Čutović, N., Vuksanović, M., Milošević, M., Bugarčić, M., Bošnjaković, J., Gržetić, J.,& Marinković, A.. (2022). Recycled poly(ethylene terephthalate) based – plasticizers for PVC regranulates production. in Proceedings - 29th International Conference Ecological Truth and Environmental Research - EcoTER'22, 21-24 June 2022, Sokobanja, Serbia
Bor : University of Belgrade, Technical Faculty in Bor., 452-458.
https://hdl.handle.net/21.15107/rcub_cer_6960

Čutović N, Vuksanović M, Milošević M, Bugarčić M, Bošnjaković J, Gržetić J, Marinković A. Recycled poly(ethylene terephthalate) based – plasticizers for PVC regranulates production. in Proceedings - 29th International Conference Ecological Truth and Environmental Research - EcoTER'22, 21-24 June 2022, Sokobanja, Serbia. 2022;:452-458.
https://hdl.handle.net/21.15107/rcub_cer_6960 .

Čutović, Natalija, Vuksanović, Marija, Milošević, Milena, Bugarčić, Mladen, Bošnjaković, Jovana, Gržetić, Jelena, Marinković, Aleksandar, "Recycled poly(ethylene terephthalate) based – plasticizers for PVC regranulates production" in Proceedings - 29th International Conference Ecological Truth and Environmental Research - EcoTER'22, 21-24 June 2022, Sokobanja, Serbia (2022):452-458,
https://hdl.handle.net/21.15107/rcub_cer_6960 .

TY  - JOUR
AU  - Bugarčić, Mladen
AU  - Lopičić, Zorica
AU  - Šoštarić, Tatjana
AU  - Marinković, Aleksandar D.
AU  - Rusmirović, Jelena D.
AU  - Milošević, Dragana
AU  - Milivojević, Milan
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4798
AB  - Expanded vermiculite (EV) was modified by deposition of different spinel ferrite composites on the outer surface of EV 2:1 layers in order to improve its adsorptive properties. Modifications were made by deposition of: magnetite, manganese ferrite, cobalt ferrite and chromium oxide/hematite. The characterization of modified materials was performed by: scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) methodology, X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), magnetization measurements, as well as determination of cation exchange capacity (CEC) and pH point of zero charge (pHPZC). Obtained samples were used as adsorbents for Pb2+, Ni2+and Cd2+ ions from an aqueous solution in a batch system. Results showed that adsorption capacity was strongly dependent on physical and chemical changes induced by specific chemical modification. Hydrothermally produced manganese and cobalt ferrites caused significant surface changes and altered the interlayer cation balance. Among the others, EV-Mn/Co-ferrite(s) samples possessed the highest adsorption capacity towards Ni2+ (33.06 mg g-1), along with an increase of the CEC. Freundlich's adsorption isotherm model provided the best fit of obtained experimental data, while kinetic studies showed that the adsorption rate follows the pseudo second-order model, implying heterogeneous adsorbents surface. Thermodynamic and kinetic parameters indicated that the mechanism of cations removal efficacy was dominantly followed by the ion exchange. This study confirmed that doped ferrites, produced by solvothermal method, improve surface properties of EV and increase adsorption potentials towards heavy metals.
PB  - Elsevier
T2  - Journal of Environmental Chemical Engineering
T1  - Vermiculite enriched by Fe(III) oxides as a novel adsorbent for toxic metals removal
VL  - 9
IS  - 5
SP  - 106020
DO  - 10.1016/j.jece.2021.106020
ER  - 

@article{
author = "Bugarčić, Mladen and Lopičić, Zorica and Šoštarić, Tatjana and Marinković, Aleksandar D. and Rusmirović, Jelena D. and Milošević, Dragana and Milivojević, Milan",
year = "2021",
abstract = "Expanded vermiculite (EV) was modified by deposition of different spinel ferrite composites on the outer surface of EV 2:1 layers in order to improve its adsorptive properties. Modifications were made by deposition of: magnetite, manganese ferrite, cobalt ferrite and chromium oxide/hematite. The characterization of modified materials was performed by: scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) methodology, X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), magnetization measurements, as well as determination of cation exchange capacity (CEC) and pH point of zero charge (pHPZC). Obtained samples were used as adsorbents for Pb2+, Ni2+and Cd2+ ions from an aqueous solution in a batch system. Results showed that adsorption capacity was strongly dependent on physical and chemical changes induced by specific chemical modification. Hydrothermally produced manganese and cobalt ferrites caused significant surface changes and altered the interlayer cation balance. Among the others, EV-Mn/Co-ferrite(s) samples possessed the highest adsorption capacity towards Ni2+ (33.06 mg g-1), along with an increase of the CEC. Freundlich's adsorption isotherm model provided the best fit of obtained experimental data, while kinetic studies showed that the adsorption rate follows the pseudo second-order model, implying heterogeneous adsorbents surface. Thermodynamic and kinetic parameters indicated that the mechanism of cations removal efficacy was dominantly followed by the ion exchange. This study confirmed that doped ferrites, produced by solvothermal method, improve surface properties of EV and increase adsorption potentials towards heavy metals.",
publisher = "Elsevier",
journal = "Journal of Environmental Chemical Engineering",
title = "Vermiculite enriched by Fe(III) oxides as a novel adsorbent for toxic metals removal",
volume = "9",
number = "5",
pages = "106020",
doi = "10.1016/j.jece.2021.106020"
}

Bugarčić, M., Lopičić, Z., Šoštarić, T., Marinković, A. D., Rusmirović, J. D., Milošević, D.,& Milivojević, M.. (2021). Vermiculite enriched by Fe(III) oxides as a novel adsorbent for toxic metals removal. in Journal of Environmental Chemical Engineering
Elsevier., 9(5), 106020.
https://doi.org/10.1016/j.jece.2021.106020

Bugarčić M, Lopičić Z, Šoštarić T, Marinković AD, Rusmirović JD, Milošević D, Milivojević M. Vermiculite enriched by Fe(III) oxides as a novel adsorbent for toxic metals removal. in Journal of Environmental Chemical Engineering. 2021;9(5):106020.
doi:10.1016/j.jece.2021.106020 .

Bugarčić, Mladen, Lopičić, Zorica, Šoštarić, Tatjana, Marinković, Aleksandar D., Rusmirović, Jelena D., Milošević, Dragana, Milivojević, Milan, "Vermiculite enriched by Fe(III) oxides as a novel adsorbent for toxic metals removal" in Journal of Environmental Chemical Engineering, 9, no. 5 (2021):106020,
https://doi.org/10.1016/j.jece.2021.106020 . .

TY  - JOUR
AU  - Đorđević, Nataša G.
AU  - Vlahović, Milica
AU  - Martinović, Sanja
AU  - Bugarčić, Mladen
AU  - Mihajlović, Slavica
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5990
AB  - Secondary sulfur obtained as a by-product in the oil refining process is a major problem as an environmental pollutant. One of the possibilities for environmental protection is the use of sulfur obtained in this way as a component of sulfur concrete. Mixing of sulfur with suitable additives can provide longer working lifetime of sulfur concrete, as well as maintenance of the former physical, chemical, and mechanical properties of concrete. Such mixtures are usually called modified sulfur or sulfur cement. Secondary sulfur produced in the oil refining process by the Klaus process (approval of crude oil) cannot be used in this form. In order to be ready for the use of sulfur concrete and asphalt, it is necessary to modify elemental sulfur from cyclic to chain form, obtaining of modified sulfur whose application is as a binding agent in a concrete instead of portland cement is described in this paper. Influence of dicyclopentadien, an organic additive, on sulfur modification has been studied in this research. Microstructure and mineral analysis of modified and unmodified sulfur cement binding are performed using polarized and scanning electron microscopes and X-ray diffraction spectrometer.
PB  - University of Belgrade - Faculty of Mining and Geology
T2  - Podzemni radovi / Underground mining engineering
T1  - X-rаy diffraction and SEM analysis of waste sulfur modification for use in concretes
VL  - 38
SP  - 57
EP  - 65
DO  - 10.5937/podrad2138057Q
ER  - 

@article{
author = "Đorđević, Nataša G. and Vlahović, Milica and Martinović, Sanja and Bugarčić, Mladen and Mihajlović, Slavica",
year = "2021",
abstract = "Secondary sulfur obtained as a by-product in the oil refining process is a major problem as an environmental pollutant. One of the possibilities for environmental protection is the use of sulfur obtained in this way as a component of sulfur concrete. Mixing of sulfur with suitable additives can provide longer working lifetime of sulfur concrete, as well as maintenance of the former physical, chemical, and mechanical properties of concrete. Such mixtures are usually called modified sulfur or sulfur cement. Secondary sulfur produced in the oil refining process by the Klaus process (approval of crude oil) cannot be used in this form. In order to be ready for the use of sulfur concrete and asphalt, it is necessary to modify elemental sulfur from cyclic to chain form, obtaining of modified sulfur whose application is as a binding agent in a concrete instead of portland cement is described in this paper. Influence of dicyclopentadien, an organic additive, on sulfur modification has been studied in this research. Microstructure and mineral analysis of modified and unmodified sulfur cement binding are performed using polarized and scanning electron microscopes and X-ray diffraction spectrometer.",
publisher = "University of Belgrade - Faculty of Mining and Geology",
journal = "Podzemni radovi / Underground mining engineering",
title = "X-rаy diffraction and SEM analysis of waste sulfur modification for use in concretes",
volume = "38",
pages = "57-65",
doi = "10.5937/podrad2138057Q"
}

Đorđević, N. G., Vlahović, M., Martinović, S., Bugarčić, M.,& Mihajlović, S.. (2021). X-rаy diffraction and SEM analysis of waste sulfur modification for use in concretes. in Podzemni radovi / Underground mining engineering
University of Belgrade - Faculty of Mining and Geology., 38, 57-65.
https://doi.org/10.5937/podrad2138057Q

Đorđević NG, Vlahović M, Martinović S, Bugarčić M, Mihajlović S. X-rаy diffraction and SEM analysis of waste sulfur modification for use in concretes. in Podzemni radovi / Underground mining engineering. 2021;38:57-65.
doi:10.5937/podrad2138057Q .

Đorđević, Nataša G., Vlahović, Milica, Martinović, Sanja, Bugarčić, Mladen, Mihajlović, Slavica, "X-rаy diffraction and SEM analysis of waste sulfur modification for use in concretes" in Podzemni radovi / Underground mining engineering, 38 (2021):57-65,
https://doi.org/10.5937/podrad2138057Q . .

TY  - CONF
AU  - Milošević, Dragana
AU  - Kovačina, Jovanka
AU  - Bugarčić, Mladen
AU  - Simović, Anđela
AU  - Petrović, Predrag
AU  - Marinković, Aleksandar
AU  - Petrović, Rada
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6470
AB  - Mushrooms are widely investigated and recognized as perspective materials for the removal
of various pollutants from wastewater effluents. In this study, mosaic puffball Handkea
utriformis was tested as a new biodegradable, but relatively stable material for Cd2+
adsorption from aqueous mediums. The fruiting body of Handkea utriformis goes through the
process of autodigestion, during which their inside – gleba is turned into a powdery, sporebearing mass, and the lower portion of the fruiting body – subgleba, into a dark, dry, spongy
mass. The impurities and spores present on the surface of the subgleba can be removed in a
simple process of purification with acidic and alkaline solutions. The purification decreases
the hydrophobicity of the surface of this material, and therefore increases the number of
surface functionalities, knowing that subgleba consists of sugars, proteins and polymeric
pigments (melanins). The subgleba purified with 0.1M HCl and 0.1M NaOH (Sp) was used
for the removal of Cd2+ from the aqueous solution. The efficiency of the material for
adsorption of Cd2+ was investigated in a batch system under the constant initial concentration
of adsorbate and pH and different concentrations of the adsorbent. Composition and surface
morphology were characterized by using FT-IR spectroscopy, SEM and EDX analysis.
Concentrations of Cd2+, before and after adsorption, were determined by using Atomic
Absorption Spectroscopy (AAS). The Langmuir and Freundlich isotherm models, as well as
kinetic models, were evaluated to correlate experimental data. The results showed that kinetic
data were well fitted by a pseudo-second-order model. Isotherms studies revealed that the
best fit was achieved with the Langmuir isotherm model with a maximum adsorption capacity
of 15.2, 19.1 and 25.0 mg g-1 at 25, 35 and 45ºC, respectively.
PB  - Zvornik : Faculty of Technology
C3  - Book of Abstracts - VII International Congress Engineering, Environment and Materials in Process Industry, 17th-19th March 2021, Jahorina - Republic of Srpska, Bosnia and Herzegovina
T1  - Efficient removal of Cd2+ from aqueous solution using subgleba of mushroom Handkea utriformis
SP  - 73
EP  - 73
UR  - https://hdl.handle.net/21.15107/rcub_cer_6470
ER  - 

@conference{
author = "Milošević, Dragana and Kovačina, Jovanka and Bugarčić, Mladen and Simović, Anđela and Petrović, Predrag and Marinković, Aleksandar and Petrović, Rada",
year = "2021",
abstract = "Mushrooms are widely investigated and recognized as perspective materials for the removal
of various pollutants from wastewater effluents. In this study, mosaic puffball Handkea
utriformis was tested as a new biodegradable, but relatively stable material for Cd2+
adsorption from aqueous mediums. The fruiting body of Handkea utriformis goes through the
process of autodigestion, during which their inside – gleba is turned into a powdery, sporebearing mass, and the lower portion of the fruiting body – subgleba, into a dark, dry, spongy
mass. The impurities and spores present on the surface of the subgleba can be removed in a
simple process of purification with acidic and alkaline solutions. The purification decreases
the hydrophobicity of the surface of this material, and therefore increases the number of
surface functionalities, knowing that subgleba consists of sugars, proteins and polymeric
pigments (melanins). The subgleba purified with 0.1M HCl and 0.1M NaOH (Sp) was used
for the removal of Cd2+ from the aqueous solution. The efficiency of the material for
adsorption of Cd2+ was investigated in a batch system under the constant initial concentration
of adsorbate and pH and different concentrations of the adsorbent. Composition and surface
morphology were characterized by using FT-IR spectroscopy, SEM and EDX analysis.
Concentrations of Cd2+, before and after adsorption, were determined by using Atomic
Absorption Spectroscopy (AAS). The Langmuir and Freundlich isotherm models, as well as
kinetic models, were evaluated to correlate experimental data. The results showed that kinetic
data were well fitted by a pseudo-second-order model. Isotherms studies revealed that the
best fit was achieved with the Langmuir isotherm model with a maximum adsorption capacity
of 15.2, 19.1 and 25.0 mg g-1 at 25, 35 and 45ºC, respectively.",
publisher = "Zvornik : Faculty of Technology",
journal = "Book of Abstracts - VII International Congress Engineering, Environment and Materials in Process Industry, 17th-19th March 2021, Jahorina - Republic of Srpska, Bosnia and Herzegovina",
title = "Efficient removal of Cd2+ from aqueous solution using subgleba of mushroom Handkea utriformis",
pages = "73-73",
url = "https://hdl.handle.net/21.15107/rcub_cer_6470"
}

Milošević, D., Kovačina, J., Bugarčić, M., Simović, A., Petrović, P., Marinković, A.,& Petrović, R.. (2021). Efficient removal of Cd2+ from aqueous solution using subgleba of mushroom Handkea utriformis. in Book of Abstracts - VII International Congress Engineering, Environment and Materials in Process Industry, 17th-19th March 2021, Jahorina - Republic of Srpska, Bosnia and Herzegovina
Zvornik : Faculty of Technology., 73-73.
https://hdl.handle.net/21.15107/rcub_cer_6470

Milošević D, Kovačina J, Bugarčić M, Simović A, Petrović P, Marinković A, Petrović R. Efficient removal of Cd2+ from aqueous solution using subgleba of mushroom Handkea utriformis. in Book of Abstracts - VII International Congress Engineering, Environment and Materials in Process Industry, 17th-19th March 2021, Jahorina - Republic of Srpska, Bosnia and Herzegovina. 2021;:73-73.
https://hdl.handle.net/21.15107/rcub_cer_6470 .

Milošević, Dragana, Kovačina, Jovanka, Bugarčić, Mladen, Simović, Anđela, Petrović, Predrag, Marinković, Aleksandar, Petrović, Rada, "Efficient removal of Cd2+ from aqueous solution using subgleba of mushroom Handkea utriformis" in Book of Abstracts - VII International Congress Engineering, Environment and Materials in Process Industry, 17th-19th March 2021, Jahorina - Republic of Srpska, Bosnia and Herzegovina (2021):73-73,
https://hdl.handle.net/21.15107/rcub_cer_6470 .

TY  - CONF
AU  - Bugarčić, Mladen
AU  - Milošević, Dragana
AU  - Sokić, Miroslav
AU  - Jovanović, Gvozden
AU  - Lopičić, Zorica
AU  - Marinković, Aleksandar
AU  - Milivojević, Milan
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6468
AB  - The minerals with unique properties such as mica minerals have promising approach in environmental and industrial sphere. In this study, cobalt ferrite/expanded vermiculite (CoFe2O4/EV) composite was prepared by in-situ method. Both composite and base materials are characterized by FTIR, XRD and SEM techniques, while the CEC and point of zero charge (pHPZC) was also determined. The adsorption properties of CoFe2O4/EV and EV have been investigated in a batch system, for the Ni (II) sorption from water. Adsorption experimental results were fitted by kinetic and adsorption models, and resulted in ionic exchange mechanism with maximum adsorption capacity of 23.2mg g-1 (298 K).
PB  - University of Belgrade, Technical Faculty in Bor
C3  - Book of Abstracts - XIV International Mineral Processing and Recycling Conference, 12th-14th May 2021, Belgrade, Serbia
T1  - Synthesis and characterization of cobalt ferrite/ expanded vermiculite as a sorbent of nickel ions
SP  - 154
EP  - 159
UR  - https://hdl.handle.net/21.15107/rcub_cer_6468
ER  - 

@conference{
author = "Bugarčić, Mladen and Milošević, Dragana and Sokić, Miroslav and Jovanović, Gvozden and Lopičić, Zorica and Marinković, Aleksandar and Milivojević, Milan",
year = "2021",
abstract = "The minerals with unique properties such as mica minerals have promising approach in environmental and industrial sphere. In this study, cobalt ferrite/expanded vermiculite (CoFe2O4/EV) composite was prepared by in-situ method. Both composite and base materials are characterized by FTIR, XRD and SEM techniques, while the CEC and point of zero charge (pHPZC) was also determined. The adsorption properties of CoFe2O4/EV and EV have been investigated in a batch system, for the Ni (II) sorption from water. Adsorption experimental results were fitted by kinetic and adsorption models, and resulted in ionic exchange mechanism with maximum adsorption capacity of 23.2mg g-1 (298 K).",
publisher = "University of Belgrade, Technical Faculty in Bor",
journal = "Book of Abstracts - XIV International Mineral Processing and Recycling Conference, 12th-14th May 2021, Belgrade, Serbia",
title = "Synthesis and characterization of cobalt ferrite/ expanded vermiculite as a sorbent of nickel ions",
pages = "154-159",
url = "https://hdl.handle.net/21.15107/rcub_cer_6468"
}

Bugarčić, M., Milošević, D., Sokić, M., Jovanović, G., Lopičić, Z., Marinković, A.,& Milivojević, M.. (2021). Synthesis and characterization of cobalt ferrite/ expanded vermiculite as a sorbent of nickel ions. in Book of Abstracts - XIV International Mineral Processing and Recycling Conference, 12th-14th May 2021, Belgrade, Serbia
University of Belgrade, Technical Faculty in Bor., 154-159.
https://hdl.handle.net/21.15107/rcub_cer_6468

Bugarčić M, Milošević D, Sokić M, Jovanović G, Lopičić Z, Marinković A, Milivojević M. Synthesis and characterization of cobalt ferrite/ expanded vermiculite as a sorbent of nickel ions. in Book of Abstracts - XIV International Mineral Processing and Recycling Conference, 12th-14th May 2021, Belgrade, Serbia. 2021;:154-159.
https://hdl.handle.net/21.15107/rcub_cer_6468 .

Bugarčić, Mladen, Milošević, Dragana, Sokić, Miroslav, Jovanović, Gvozden, Lopičić, Zorica, Marinković, Aleksandar, Milivojević, Milan, "Synthesis and characterization of cobalt ferrite/ expanded vermiculite as a sorbent of nickel ions" in Book of Abstracts - XIV International Mineral Processing and Recycling Conference, 12th-14th May 2021, Belgrade, Serbia (2021):154-159,
https://hdl.handle.net/21.15107/rcub_cer_6468 .

TY  - CONF
AU  - Bugarčić, Mladen
AU  - Sokić, Miroslav
AU  - Marković, Branislav
AU  - Milivojević, Milan
AU  - Marinković, Aleksandar
AU  - Perendija, Jovana
AU  - Lopičić, Zorica
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4886
AB  - Adsorbents based on magnetic materials are the subject of numerous researches. Beside good magnetism and functional surface, manganese ferrite is unstable and prone to form low mechanical strength agglomerates, which necessitate its deposition on the substrate surface. Expanded vermiculite outer surfac, is a useful medium for the deposition of nanoparticles whereas intercation layer is suitable for holding cation species (distance of 2:1 layers may be greater than 10 Å). Due to its relatively high surface area, cation exchange capacity and natural abundance of vermiculite, this mica mineral and its composites could be valorized as potentially low-cost adsorbents. In this study, manganese ferrite/expanded vermiculite (MnFe2O4/EV) composite was prepared by in-situ method. Deposited manganese ferrite particles on the surface of EV were formed in the solvothermal reaction using suitable reagents. Both composite and base material are characterized by Fourier transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRPD), scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) specific surface area (SSA), cation exchange capacity (CEC) and pH point of zero charge (pHPZC) determination. The adsorption properties of MnFe2O4/EV and EV have been investigated in a batch system at pH close to the pHPZC for the removal of Ni (II) from water. Considering process parameters such as contact time, adsorbent dosage and temperature: adsorption type, isotherm parameters (Langmuir and Freundlich) and rate of adsorption parameters were determined. Results of the kinetic studies gave fine correlations with pseudo – second order and Weber – Morris model. Taking into consideration fact that EV had low CEC values and SSA, obtained composite have high adsorption capacity (more than 30 mg Ni g-1). Also, X-ray diffractograms showed alteration of biotite vermiculite (formed during solvothermal action) into phlogopite (formed after adsorption process and aging). The methodology applied in this work may be utilized for the fabrication of other ferrite spinels, perovskites and other oxide systems.
AB  - Adsorbenti na bazi magnetičnih materijala su predmet brojnih istraživanja. Osim dobre magnetičnosti i funkcioncionalnoj površini, mangan ferit je nestabilan i teši formiranju aglomerata niske mehaničke čvrstine, čime se iziskuje njegova depozicija na površini supstrata. Spoljna površina ekspandovanog vermikulita je korisni medijum za depoziciju nanočestica dok interkalacioni sloj je podesan za zadržavanje katjonskih vrsta (rastojanje između slojeva može biti iznad 10 Å). Zahvaljujući relativno visokoj površini, kapacitetu katjonske izmene i prirodnoj zastupljenosti vermikulita, ovaj mineral liskuna i njegovi kompoziti mogu biti valorizovani kao potencijalni povoljni adsorbenti. U ovoj studiji, kompozit mangan ferita/eksapndovanom vermikulitu (MnFe2O4/EV) pripremljen je in-situ metodom. Deponovane čestice mangan ferita na površini EV formirane su u solvotermalnoj reakciji korišćenjem podesnih reagenasa. Kompozit kao i bazni materijal karakterizovani su: infracrvenom spektroskopijom sa Furijeovom transformacijom (FTIR), difrakcijom X-zraka na prahu (XRPD), skenirajućom elektronskom mikroskopijom (SEM), specifičnom površinom (SSA) određenom metodologijom po BET-u, kapacitetom katjonske izmene (CEC) i pH tačke nultog naelektrisanja (pHPZC). Adsorpciona svojstva MnFe2O4/EV i EV istražena su u šaržnom sistemu na pH vrednosti bliskoj pH tački nultog naelektrisanja za uklanjane Ni (II) iz vode. Uzimajući u obzir procesne parametre kao što su vreme kontakta, masa adsorbenta i temperatura određeni su: tip adsorpcije, izotermski parametri (Lengmir i Frojndlih) kao i parametri brzine adsorpcije. Rezultati kinetičkih studija dobro se korelišu pseudo – drugom redu reakcije i Veber – Morisovim modelom. Uzevši u obzir činjenicu da je uzorak EV imao malu vrednost CEC i nisku specifičnu površinu, dobijeni kompozit ima visok adsorpcioni kapacitet (preko 30 mg Ni g-1). Osim toga, difraktogrami X-zraka pokazali su alteraciju biotitskog vermikulita (formiranog solvotermalnom akcijom) u flogopit (formiran nakon adsorpcionog procesa i starenjem). Metodologija primenjena u ovom radu može biti iskorištena za proizvodnju drugih feritnih spinela, perovskita i ostalih oksidnih sistema.
PB  - Belgrade : Serbian Society of Corrosion and Materials Protection UISKOZAM
C3  - Meeting point of the science and practice in the fields of corrosion, materials and environmental protection : proceedings XXII YuCorr International Conference / Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine : knjiga radova XXII YuCorr [Jugoslovenska korozija] Međunarodna konferencija
T1  - Fabrication and characterization of manganese ferrite/expanded vermiculite as a magnetic adsorbent of nickel ions
SP  - 84
EP  - 94
UR  - https://hdl.handle.net/21.15107/rcub_cer_4886
ER  - 

@conference{
author = "Bugarčić, Mladen and Sokić, Miroslav and Marković, Branislav and Milivojević, Milan and Marinković, Aleksandar and Perendija, Jovana and Lopičić, Zorica",
year = "2021",
abstract = "Adsorbents based on magnetic materials are the subject of numerous researches. Beside good magnetism and functional surface, manganese ferrite is unstable and prone to form low mechanical strength agglomerates, which necessitate its deposition on the substrate surface. Expanded vermiculite outer surfac, is a useful medium for the deposition of nanoparticles whereas intercation layer is suitable for holding cation species (distance of 2:1 layers may be greater than 10 Å). Due to its relatively high surface area, cation exchange capacity and natural abundance of vermiculite, this mica mineral and its composites could be valorized as potentially low-cost adsorbents. In this study, manganese ferrite/expanded vermiculite (MnFe2O4/EV) composite was prepared by in-situ method. Deposited manganese ferrite particles on the surface of EV were formed in the solvothermal reaction using suitable reagents. Both composite and base material are characterized by Fourier transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRPD), scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) specific surface area (SSA), cation exchange capacity (CEC) and pH point of zero charge (pHPZC) determination. The adsorption properties of MnFe2O4/EV and EV have been investigated in a batch system at pH close to the pHPZC for the removal of Ni (II) from water. Considering process parameters such as contact time, adsorbent dosage and temperature: adsorption type, isotherm parameters (Langmuir and Freundlich) and rate of adsorption parameters were determined. Results of the kinetic studies gave fine correlations with pseudo – second order and Weber – Morris model. Taking into consideration fact that EV had low CEC values and SSA, obtained composite have high adsorption capacity (more than 30 mg Ni g-1). Also, X-ray diffractograms showed alteration of biotite vermiculite (formed during solvothermal action) into phlogopite (formed after adsorption process and aging). The methodology applied in this work may be utilized for the fabrication of other ferrite spinels, perovskites and other oxide systems., Adsorbenti na bazi magnetičnih materijala su predmet brojnih istraživanja. Osim dobre magnetičnosti i funkcioncionalnoj površini, mangan ferit je nestabilan i teši formiranju aglomerata niske mehaničke čvrstine, čime se iziskuje njegova depozicija na površini supstrata. Spoljna površina ekspandovanog vermikulita je korisni medijum za depoziciju nanočestica dok interkalacioni sloj je podesan za zadržavanje katjonskih vrsta (rastojanje između slojeva može biti iznad 10 Å). Zahvaljujući relativno visokoj površini, kapacitetu katjonske izmene i prirodnoj zastupljenosti vermikulita, ovaj mineral liskuna i njegovi kompoziti mogu biti valorizovani kao potencijalni povoljni adsorbenti. U ovoj studiji, kompozit mangan ferita/eksapndovanom vermikulitu (MnFe2O4/EV) pripremljen je in-situ metodom. Deponovane čestice mangan ferita na površini EV formirane su u solvotermalnoj reakciji korišćenjem podesnih reagenasa. Kompozit kao i bazni materijal karakterizovani su: infracrvenom spektroskopijom sa Furijeovom transformacijom (FTIR), difrakcijom X-zraka na prahu (XRPD), skenirajućom elektronskom mikroskopijom (SEM), specifičnom površinom (SSA) određenom metodologijom po BET-u, kapacitetom katjonske izmene (CEC) i pH tačke nultog naelektrisanja (pHPZC). Adsorpciona svojstva MnFe2O4/EV i EV istražena su u šaržnom sistemu na pH vrednosti bliskoj pH tački nultog naelektrisanja za uklanjane Ni (II) iz vode. Uzimajući u obzir procesne parametre kao što su vreme kontakta, masa adsorbenta i temperatura određeni su: tip adsorpcije, izotermski parametri (Lengmir i Frojndlih) kao i parametri brzine adsorpcije. Rezultati kinetičkih studija dobro se korelišu pseudo – drugom redu reakcije i Veber – Morisovim modelom. Uzevši u obzir činjenicu da je uzorak EV imao malu vrednost CEC i nisku specifičnu površinu, dobijeni kompozit ima visok adsorpcioni kapacitet (preko 30 mg Ni g-1). Osim toga, difraktogrami X-zraka pokazali su alteraciju biotitskog vermikulita (formiranog solvotermalnom akcijom) u flogopit (formiran nakon adsorpcionog procesa i starenjem). Metodologija primenjena u ovom radu može biti iskorištena za proizvodnju drugih feritnih spinela, perovskita i ostalih oksidnih sistema.",
publisher = "Belgrade : Serbian Society of Corrosion and Materials Protection UISKOZAM",
journal = "Meeting point of the science and practice in the fields of corrosion, materials and environmental protection : proceedings XXII YuCorr International Conference / Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine : knjiga radova XXII YuCorr [Jugoslovenska korozija] Međunarodna konferencija",
title = "Fabrication and characterization of manganese ferrite/expanded vermiculite as a magnetic adsorbent of nickel ions",
pages = "84-94",
url = "https://hdl.handle.net/21.15107/rcub_cer_4886"
}

Bugarčić, M., Sokić, M., Marković, B., Milivojević, M., Marinković, A., Perendija, J.,& Lopičić, Z.. (2021). Fabrication and characterization of manganese ferrite/expanded vermiculite as a magnetic adsorbent of nickel ions. in Meeting point of the science and practice in the fields of corrosion, materials and environmental protection : proceedings XXII YuCorr International Conference / Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine : knjiga radova XXII YuCorr [Jugoslovenska korozija] Međunarodna konferencija
Belgrade : Serbian Society of Corrosion and Materials Protection UISKOZAM., 84-94.
https://hdl.handle.net/21.15107/rcub_cer_4886

Bugarčić M, Sokić M, Marković B, Milivojević M, Marinković A, Perendija J, Lopičić Z. Fabrication and characterization of manganese ferrite/expanded vermiculite as a magnetic adsorbent of nickel ions. in Meeting point of the science and practice in the fields of corrosion, materials and environmental protection : proceedings XXII YuCorr International Conference / Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine : knjiga radova XXII YuCorr [Jugoslovenska korozija] Međunarodna konferencija. 2021;:84-94.
https://hdl.handle.net/21.15107/rcub_cer_4886 .

Bugarčić, Mladen, Sokić, Miroslav, Marković, Branislav, Milivojević, Milan, Marinković, Aleksandar, Perendija, Jovana, Lopičić, Zorica, "Fabrication and characterization of manganese ferrite/expanded vermiculite as a magnetic adsorbent of nickel ions" in Meeting point of the science and practice in the fields of corrosion, materials and environmental protection : proceedings XXII YuCorr International Conference / Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine : knjiga radova XXII YuCorr [Jugoslovenska korozija] Međunarodna konferencija (2021):84-94,
https://hdl.handle.net/21.15107/rcub_cer_4886 .

TY  - CONF
AU  - Bugarčić, Mladen
AU  - Milošević, Dragana
AU  - Spasojević, Milica
AU  - Marunkić, Dunja
AU  - Kovačina, Jovanka
AU  - Milivojević, Milan
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7064
AB  - Point of zero charge (PZC) is one the most valuable parameter of adsorbent  preparation process, in wastewater management. Although, this parameter may be  determined measuring the electrokinetic potential (zetta potential) as the function of pH;  material engineers oftenrely on pH PZC value which may be easily determined and can give  usefuladsorbent properties duringexploitation. Samples from previous study are  characterized and their pH PZC values are determined. Provided results are such intriguing  since they brought conclusions that those values can be explained by process parameters  of the particular sample preparation. Sample marked as Cr2O3/Fe3O4/EVer have lowest pH  PZC value (4.75) and sample marked as MnFe2O4/EVer highest pH PZC value (7.47).  Another study in this paper showed that pH PZC value could be easily increased or  decreased by simple base or acid treatment, respectfully. As expected, samples treated  with bases or prepared in alkali medium have greater adsorption capacity towards cation  species, up to 20 % more than base material in the case MnFe2O4/EVer.
PB  - Beograd : Institut za istraživanja i projektovanja u privredi
C3  - Abstract Proceedings - YOUng ResearcherS Conference 2020, 28th September 2020, Belgrade
T1  - Adjsuting pH PZC value during and after adsorbent preparation
SP  - 28
EP  - 28
UR  - https://hdl.handle.net/21.15107/rcub_cer_7064
ER  - 

@conference{
author = "Bugarčić, Mladen and Milošević, Dragana and Spasojević, Milica and Marunkić, Dunja and Kovačina, Jovanka and Milivojević, Milan",
year = "2020",
abstract = "Point of zero charge (PZC) is one the most valuable parameter of adsorbent  preparation process, in wastewater management. Although, this parameter may be  determined measuring the electrokinetic potential (zetta potential) as the function of pH;  material engineers oftenrely on pH PZC value which may be easily determined and can give  usefuladsorbent properties duringexploitation. Samples from previous study are  characterized and their pH PZC values are determined. Provided results are such intriguing  since they brought conclusions that those values can be explained by process parameters  of the particular sample preparation. Sample marked as Cr2O3/Fe3O4/EVer have lowest pH  PZC value (4.75) and sample marked as MnFe2O4/EVer highest pH PZC value (7.47).  Another study in this paper showed that pH PZC value could be easily increased or  decreased by simple base or acid treatment, respectfully. As expected, samples treated  with bases or prepared in alkali medium have greater adsorption capacity towards cation  species, up to 20 % more than base material in the case MnFe2O4/EVer.",
publisher = "Beograd : Institut za istraživanja i projektovanja u privredi",
journal = "Abstract Proceedings - YOUng ResearcherS Conference 2020, 28th September 2020, Belgrade",
title = "Adjsuting pH PZC value during and after adsorbent preparation",
pages = "28-28",
url = "https://hdl.handle.net/21.15107/rcub_cer_7064"
}

Bugarčić, M., Milošević, D., Spasojević, M., Marunkić, D., Kovačina, J.,& Milivojević, M.. (2020). Adjsuting pH PZC value during and after adsorbent preparation. in Abstract Proceedings - YOUng ResearcherS Conference 2020, 28th September 2020, Belgrade
Beograd : Institut za istraživanja i projektovanja u privredi., 28-28.
https://hdl.handle.net/21.15107/rcub_cer_7064

Bugarčić M, Milošević D, Spasojević M, Marunkić D, Kovačina J, Milivojević M. Adjsuting pH PZC value during and after adsorbent preparation. in Abstract Proceedings - YOUng ResearcherS Conference 2020, 28th September 2020, Belgrade. 2020;:28-28.
https://hdl.handle.net/21.15107/rcub_cer_7064 .

Bugarčić, Mladen, Milošević, Dragana, Spasojević, Milica, Marunkić, Dunja, Kovačina, Jovanka, Milivojević, Milan, "Adjsuting pH PZC value during and after adsorbent preparation" in Abstract Proceedings - YOUng ResearcherS Conference 2020, 28th September 2020, Belgrade (2020):28-28,
https://hdl.handle.net/21.15107/rcub_cer_7064 .

TY  - CONF
AU  - Bugarčić, Mladen
AU  - Milošević, Dragana
AU  - Spasojević, Milica
AU  - Marunkić, Dunja
AU  - Kovačina, Jovanka
AU  - Milivojević, Milan
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7063
AB  - Point of zero charge (PZC) is one the most valuable parameter of adsorbent preparation process, in
wastewater management. Although, this parameter may be determined measuring the electrokinetic potential (zetta
potential) as the function of pH; material engineers oftenrely on pH PZC value which may be easily determined and
can give usefuladsorbent properties duringexploitation. Samples from previous study are characterized and their pH
PZC values are determined. Provided results are such intriguing since they brought conclusions that those values can
be explained by process parameters of the particular sample preparation. Sample marked as Cr2O3/Fe3O4/EVer have
lowest pH PZC value (4.75) and sample marked as MnFe2O4/EVer highest pH PZC value (7.47). Another study in this
paper showed that pH PZC value could be easily increased or decreased by simple base or acid treatment, respectfully.
As expected, samples treated with bases or prepared in alkali medium have greater adsorption capacity towards
cation species, up to 20 % more than base material in the case MnFe2O4/EVer.
PB  - Beograd : Institut za istraživanja i projektovanja u privredi
C3  - Proceedings - YOUng ResearcherS Conference 2020, 28th September 2020, Belgrade
T1  - Adjsuting pH PZC value during and after adsorbent preparation
SP  - 46
EP  - 51
UR  - https://hdl.handle.net/21.15107/rcub_cer_7063
ER  - 

@conference{
author = "Bugarčić, Mladen and Milošević, Dragana and Spasojević, Milica and Marunkić, Dunja and Kovačina, Jovanka and Milivojević, Milan",
year = "2020",
abstract = "Point of zero charge (PZC) is one the most valuable parameter of adsorbent preparation process, in
wastewater management. Although, this parameter may be determined measuring the electrokinetic potential (zetta
potential) as the function of pH; material engineers oftenrely on pH PZC value which may be easily determined and
can give usefuladsorbent properties duringexploitation. Samples from previous study are characterized and their pH
PZC values are determined. Provided results are such intriguing since they brought conclusions that those values can
be explained by process parameters of the particular sample preparation. Sample marked as Cr2O3/Fe3O4/EVer have
lowest pH PZC value (4.75) and sample marked as MnFe2O4/EVer highest pH PZC value (7.47). Another study in this
paper showed that pH PZC value could be easily increased or decreased by simple base or acid treatment, respectfully.
As expected, samples treated with bases or prepared in alkali medium have greater adsorption capacity towards
cation species, up to 20 % more than base material in the case MnFe2O4/EVer.",
publisher = "Beograd : Institut za istraživanja i projektovanja u privredi",
journal = "Proceedings - YOUng ResearcherS Conference 2020, 28th September 2020, Belgrade",
title = "Adjsuting pH PZC value during and after adsorbent preparation",
pages = "46-51",
url = "https://hdl.handle.net/21.15107/rcub_cer_7063"
}

Bugarčić, M., Milošević, D., Spasojević, M., Marunkić, D., Kovačina, J.,& Milivojević, M.. (2020). Adjsuting pH PZC value during and after adsorbent preparation. in Proceedings - YOUng ResearcherS Conference 2020, 28th September 2020, Belgrade
Beograd : Institut za istraživanja i projektovanja u privredi., 46-51.
https://hdl.handle.net/21.15107/rcub_cer_7063

Bugarčić M, Milošević D, Spasojević M, Marunkić D, Kovačina J, Milivojević M. Adjsuting pH PZC value during and after adsorbent preparation. in Proceedings - YOUng ResearcherS Conference 2020, 28th September 2020, Belgrade. 2020;:46-51.
https://hdl.handle.net/21.15107/rcub_cer_7063 .

Bugarčić, Mladen, Milošević, Dragana, Spasojević, Milica, Marunkić, Dunja, Kovačina, Jovanka, Milivojević, Milan, "Adjsuting pH PZC value during and after adsorbent preparation" in Proceedings - YOUng ResearcherS Conference 2020, 28th September 2020, Belgrade (2020):46-51,
https://hdl.handle.net/21.15107/rcub_cer_7063 .

TY  - CONF
AU  - Perendija, Jovana
AU  - Milošević, Dragana
AU  - Bugarčić, Mladen
AU  - Marinković, Aleksandar
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7456
AB  - The industries of leather-tanning, mining and textile dyeing, generate large amounts ofchromium-containing wastewater. Hexavalent Cr(VI) is highly poisonous and extremelymobile in the surface-water and groundwater in a broad pH range and therefore it hasbeen identified as a potentially carcinogenic substance. The aim of the presented workwas to develop cellulose-based membrane functionalized with magnetite, which couldbe used as an efficient adsorbent for the removal of hexavalent chromium Cr(VI) ionsfrom aqueous solutions. Cellulose-based filter (CF) was functionalized with magnetitein three-step process. In the first and second step CF surface was modified usingan ethanolic solution of (3-aminopropyl)triethoxysilane (APTES), anddiethylenetriaminepentaacetic acid dianhydride, respectively. The introduction of aminoand carboxylic groups provided successful precipitation of magnetite in the third step.The obtained cellulose-magnetite membrane (CelMag-M) was characterized by FTIRand SEM analysis. Adsorption of Cr(VI) onto CelMag-M was studied using batchadsorptiontest. Under optimum pH conditions, the maximum experimental adsorptioncapacity of CelMag-M for Cr(VI) was found to be 111.2 mg g–1. The adsorption processwas endothermic, the equilibrium adsorption data could be best fitted to the Langmuiradsorption isotherm model and kinetics was in agreement with the pseudo-second-orderrate equation.
PB  - Belgrade : Development and Research Centre of Graphic Engineering Faculty of Technology and Metallurgy
C3  - 7th Conference of the Young Chemists of Serbia
T1  - Removal of hexavalent chromium Cr(VI) from aqueous solutions using cellulose-magnetite membrane CelMag-M
SP  - 146
EP  - 146
UR  - https://hdl.handle.net/21.15107/rcub_cer_7456
ER  - 

@conference{
author = "Perendija, Jovana and Milošević, Dragana and Bugarčić, Mladen and Marinković, Aleksandar",
year = "2019",
abstract = "The industries of leather-tanning, mining and textile dyeing, generate large amounts ofchromium-containing wastewater. Hexavalent Cr(VI) is highly poisonous and extremelymobile in the surface-water and groundwater in a broad pH range and therefore it hasbeen identified as a potentially carcinogenic substance. The aim of the presented workwas to develop cellulose-based membrane functionalized with magnetite, which couldbe used as an efficient adsorbent for the removal of hexavalent chromium Cr(VI) ionsfrom aqueous solutions. Cellulose-based filter (CF) was functionalized with magnetitein three-step process. In the first and second step CF surface was modified usingan ethanolic solution of (3-aminopropyl)triethoxysilane (APTES), anddiethylenetriaminepentaacetic acid dianhydride, respectively. The introduction of aminoand carboxylic groups provided successful precipitation of magnetite in the third step.The obtained cellulose-magnetite membrane (CelMag-M) was characterized by FTIRand SEM analysis. Adsorption of Cr(VI) onto CelMag-M was studied using batchadsorptiontest. Under optimum pH conditions, the maximum experimental adsorptioncapacity of CelMag-M for Cr(VI) was found to be 111.2 mg g–1. The adsorption processwas endothermic, the equilibrium adsorption data could be best fitted to the Langmuiradsorption isotherm model and kinetics was in agreement with the pseudo-second-orderrate equation.",
publisher = "Belgrade : Development and Research Centre of Graphic Engineering Faculty of Technology and Metallurgy",
journal = "7th Conference of the Young Chemists of Serbia",
title = "Removal of hexavalent chromium Cr(VI) from aqueous solutions using cellulose-magnetite membrane CelMag-M",
pages = "146-146",
url = "https://hdl.handle.net/21.15107/rcub_cer_7456"
}

Perendija, J., Milošević, D., Bugarčić, M.,& Marinković, A.. (2019). Removal of hexavalent chromium Cr(VI) from aqueous solutions using cellulose-magnetite membrane CelMag-M. in 7th Conference of the Young Chemists of Serbia
Belgrade : Development and Research Centre of Graphic Engineering Faculty of Technology and Metallurgy., 146-146.
https://hdl.handle.net/21.15107/rcub_cer_7456

Perendija J, Milošević D, Bugarčić M, Marinković A. Removal of hexavalent chromium Cr(VI) from aqueous solutions using cellulose-magnetite membrane CelMag-M. in 7th Conference of the Young Chemists of Serbia. 2019;:146-146.
https://hdl.handle.net/21.15107/rcub_cer_7456 .

Perendija, Jovana, Milošević, Dragana, Bugarčić, Mladen, Marinković, Aleksandar, "Removal of hexavalent chromium Cr(VI) from aqueous solutions using cellulose-magnetite membrane CelMag-M" in 7th Conference of the Young Chemists of Serbia (2019):146-146,
https://hdl.handle.net/21.15107/rcub_cer_7456 .

TY  - JOUR
AU  - Milošević, Milena D.
AU  - Daničić, Dunja
AU  - Kovačina, Jovanka
AU  - Bugarčić, Mladen
AU  - Rusmirović, Jelena
AU  - Kovačević, Tihomir M.
AU  - Marinković, Aleksandar D.
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3461
AB  - The study of the synthesis of anticorrosive inhibitors, based on chemically modified tannins, and
their use in alkyd based coatings to improve anticorrosive properties is presented in this work.
Two methods of tannin modification were applied: direct method using ammonium hydroxide,
ammonium hydroxide/ammonium chloride buffer or diethylenetriamine (DETA); and a two-step
method including tannin modification with epichlorohydrin (ECH) in first step to produce epoxy
modified tannin, ET, and further modification with heteroaromatic amines or linseed oil fatty acids
(LFA) in second step. The obtained anticorrosive additives were characterized using ATR-FTIR,
1H and 13C NMR spectroscopies and elemental analysis. Epoxy, amino, hydroxyl, acid and iodine
values of the synthesized inhibitors were determined according to standard methods. The
prepared alkyd coating with tannin inhibitors was tested according to standard SRPS EN ISO
4628 method. Anticorrosive coating containing modified tannin based additive showed increased
anticorrosive properties, good adhesion and coverage comparing to the coating with zinc
phosphate additive. The alkyd coating films based on ET-LFA and ET modified with 2-amino-5-
mercapto-1,3,4-thiadiazole showed best anticorrosive results.
AB  - U ovom radu prikazana je sinteza antikorozionih aditiva na bazi hemijski modifikovanog tanina i njihova primena u alkidnim premazima u cilju poboljšanja antikorozionih svojstava. Prikazane su dve metode modifikacije tanina: direktna modifikacija tanina primenom amonijum-hidroksida, amonijum-hidroksid/amonijum-hlorid pufera ili dietilentriamina (DETA); i dvostepena modifikacija tanina koja u prvom stupnju uključuje modifikaciju epihlorhidrinom sa ciljem da se dobije tannin sa epoksi terminiranim funkcionalnim grupama, ET, i modifikaciju ET tanina sa heteroaromatičnim aminima ili masnim kiselinama izolovanim iz lanenog ulja (LFA) u drugom stupnju. Sintetisani antikorozioni aditivi su okarakterisani primenom ATR-FTIR, 1H i 13C NMR spektroskopija, i elementalnom analizom. Sadržaj epoksi, amino, hidroksilnih i karboksilnih grupa i vrednost jodnog broja sintetisanih aditiva određen je prema standardnim metodama. Alkidni premazi koji sadrže antikorozione aditive na bazi modifikovanog tanina ispitani su prema standardnoj SRPS EN ISO 4628 metodi. Antikorozivni alkidni premazi na bazi modfikovanih tanina pokazali su poboljšane antikorozione karakteristike i adheziju u poređenju sa alkidnim premazom na bazi cink-fosfata. Alkidni premazi koji sadrže dvostepeno modifikovani tanin sa LFA i 2-amino-5-merkapto-1,3,4-tiadiazolom pokazali su najbolje antikorozione karakteristike.
PB  - Belgrade : Engineering Society for Corrosion
T2  - Zastita materijala
T1  - Modified tannins for alkyd based anticorrosive coatings
T1  - Primena modifikovanih tanina u antikorozionim alkidnim premazima
VL  - 60
IS  - 1
SP  - 81
EP  - 95
DO  - 10.5937/zasmat1901081M
ER  - 

@article{
author = "Milošević, Milena D. and Daničić, Dunja and Kovačina, Jovanka and Bugarčić, Mladen and Rusmirović, Jelena and Kovačević, Tihomir M. and Marinković, Aleksandar D.",
year = "2019",
abstract = "The study of the synthesis of anticorrosive inhibitors, based on chemically modified tannins, and
their use in alkyd based coatings to improve anticorrosive properties is presented in this work.
Two methods of tannin modification were applied: direct method using ammonium hydroxide,
ammonium hydroxide/ammonium chloride buffer or diethylenetriamine (DETA); and a two-step
method including tannin modification with epichlorohydrin (ECH) in first step to produce epoxy
modified tannin, ET, and further modification with heteroaromatic amines or linseed oil fatty acids
(LFA) in second step. The obtained anticorrosive additives were characterized using ATR-FTIR,
1H and 13C NMR spectroscopies and elemental analysis. Epoxy, amino, hydroxyl, acid and iodine
values of the synthesized inhibitors were determined according to standard methods. The
prepared alkyd coating with tannin inhibitors was tested according to standard SRPS EN ISO
4628 method. Anticorrosive coating containing modified tannin based additive showed increased
anticorrosive properties, good adhesion and coverage comparing to the coating with zinc
phosphate additive. The alkyd coating films based on ET-LFA and ET modified with 2-amino-5-
mercapto-1,3,4-thiadiazole showed best anticorrosive results., U ovom radu prikazana je sinteza antikorozionih aditiva na bazi hemijski modifikovanog tanina i njihova primena u alkidnim premazima u cilju poboljšanja antikorozionih svojstava. Prikazane su dve metode modifikacije tanina: direktna modifikacija tanina primenom amonijum-hidroksida, amonijum-hidroksid/amonijum-hlorid pufera ili dietilentriamina (DETA); i dvostepena modifikacija tanina koja u prvom stupnju uključuje modifikaciju epihlorhidrinom sa ciljem da se dobije tannin sa epoksi terminiranim funkcionalnim grupama, ET, i modifikaciju ET tanina sa heteroaromatičnim aminima ili masnim kiselinama izolovanim iz lanenog ulja (LFA) u drugom stupnju. Sintetisani antikorozioni aditivi su okarakterisani primenom ATR-FTIR, 1H i 13C NMR spektroskopija, i elementalnom analizom. Sadržaj epoksi, amino, hidroksilnih i karboksilnih grupa i vrednost jodnog broja sintetisanih aditiva određen je prema standardnim metodama. Alkidni premazi koji sadrže antikorozione aditive na bazi modifikovanog tanina ispitani su prema standardnoj SRPS EN ISO 4628 metodi. Antikorozivni alkidni premazi na bazi modfikovanih tanina pokazali su poboljšane antikorozione karakteristike i adheziju u poređenju sa alkidnim premazom na bazi cink-fosfata. Alkidni premazi koji sadrže dvostepeno modifikovani tanin sa LFA i 2-amino-5-merkapto-1,3,4-tiadiazolom pokazali su najbolje antikorozione karakteristike.",
publisher = "Belgrade : Engineering Society for Corrosion",
journal = "Zastita materijala",
title = "Modified tannins for alkyd based anticorrosive coatings, Primena modifikovanih tanina u antikorozionim alkidnim premazima",
volume = "60",
number = "1",
pages = "81-95",
doi = "10.5937/zasmat1901081M"
}

Milošević, M. D., Daničić, D., Kovačina, J., Bugarčić, M., Rusmirović, J., Kovačević, T. M.,& Marinković, A. D.. (2019). Modified tannins for alkyd based anticorrosive coatings. in Zastita materijala
Belgrade : Engineering Society for Corrosion., 60(1), 81-95.
https://doi.org/10.5937/zasmat1901081M

Milošević MD, Daničić D, Kovačina J, Bugarčić M, Rusmirović J, Kovačević TM, Marinković AD. Modified tannins for alkyd based anticorrosive coatings. in Zastita materijala. 2019;60(1):81-95.
doi:10.5937/zasmat1901081M .

Milošević, Milena D., Daničić, Dunja, Kovačina, Jovanka, Bugarčić, Mladen, Rusmirović, Jelena, Kovačević, Tihomir M., Marinković, Aleksandar D., "Modified tannins for alkyd based anticorrosive coatings" in Zastita materijala, 60, no. 1 (2019):81-95,
https://doi.org/10.5937/zasmat1901081M . .

TY  - JOUR
AU  - Marković, Branislav
AU  - Manasijević, Dragan
AU  - Talijan, Nadežda M.
AU  - Sokić, Miroslav
AU  - Štrbac, Nada
AU  - Patarić, Aleksandra
AU  - Bugarčić, Mladen
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3884
AB  - The Bi–Cu–Ni ternary system belongs to the group of potential Cu-Ni-based advanced lead-free solder materials for high temperature application. The paper shows results of the thermodynamic calculations using general solution model along the line with the molar ratio of Cu: Ni = 1:1. The experimental part shows thermal, structural, electrical and mechanical properties based on differential scanning calorimetry (DSC), scanning electron microscopy with energy dispersive spectrometry (SEM-EDS), electroconductivity and hardness measurements of the alloys selected in the section from bismuth corner with molar ratio Cu: Ni = 1:1, Cu: Ni = 3:1, and Cu: Ni = 1:3.
PB  - Serbia : Association of Metallurgical Engineers of Serbia
T2  - Metallurgical & Materials Engineering
T1  - Ternary Bi-Cu-Ni alloys – thermodynamics, characterization, mechanical and electrical properties
VL  - 23
IS  - 3
SP  - 241
EP  - 254
DO  - 10.30544/316
ER  - 

@article{
author = "Marković, Branislav and Manasijević, Dragan and Talijan, Nadežda M. and Sokić, Miroslav and Štrbac, Nada and Patarić, Aleksandra and Bugarčić, Mladen",
year = "2017",
abstract = "The Bi–Cu–Ni ternary system belongs to the group of potential Cu-Ni-based advanced lead-free solder materials for high temperature application. The paper shows results of the thermodynamic calculations using general solution model along the line with the molar ratio of Cu: Ni = 1:1. The experimental part shows thermal, structural, electrical and mechanical properties based on differential scanning calorimetry (DSC), scanning electron microscopy with energy dispersive spectrometry (SEM-EDS), electroconductivity and hardness measurements of the alloys selected in the section from bismuth corner with molar ratio Cu: Ni = 1:1, Cu: Ni = 3:1, and Cu: Ni = 1:3.",
publisher = "Serbia : Association of Metallurgical Engineers of Serbia",
journal = "Metallurgical & Materials Engineering",
title = "Ternary Bi-Cu-Ni alloys – thermodynamics, characterization, mechanical and electrical properties",
volume = "23",
number = "3",
pages = "241-254",
doi = "10.30544/316"
}

Marković, B., Manasijević, D., Talijan, N. M., Sokić, M., Štrbac, N., Patarić, A.,& Bugarčić, M.. (2017). Ternary Bi-Cu-Ni alloys – thermodynamics, characterization, mechanical and electrical properties. in Metallurgical & Materials Engineering
Serbia : Association of Metallurgical Engineers of Serbia., 23(3), 241-254.
https://doi.org/10.30544/316

Marković B, Manasijević D, Talijan NM, Sokić M, Štrbac N, Patarić A, Bugarčić M. Ternary Bi-Cu-Ni alloys – thermodynamics, characterization, mechanical and electrical properties. in Metallurgical & Materials Engineering. 2017;23(3):241-254.
doi:10.30544/316 .

Marković, Branislav, Manasijević, Dragan, Talijan, Nadežda M., Sokić, Miroslav, Štrbac, Nada, Patarić, Aleksandra, Bugarčić, Mladen, "Ternary Bi-Cu-Ni alloys – thermodynamics, characterization, mechanical and electrical properties" in Metallurgical & Materials Engineering, 23, no. 3 (2017):241-254,
https://doi.org/10.30544/316 . .