TY  - JOUR
AU  - Stojmenović, Marija
AU  - Gulicovski, Jelena
AU  - Nišić, Neda
AU  - Ristić, Nenad
AU  - Liu, Shanke
AU  - Loredo, Jorge
AU  - Kragović, Milan
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12916
AB  - This research presented, for the first time, the results of the successful application of the waste press sludges, WSLP (plant for lacquer and paint) and WSEP (powdery enamel plant), from a wastewater treatment plant generated during heating device production in the construction industry. The results of WSEP characterization and its influence on cement paste, mortar, and concrete properties showed that this material could be used as a cement replacement (with a maximum replacement amount of 20%) in producing mortar and concrete. Although waste WSLP sludge does not possess pozzolanic properties and does not meet the criteria prescribed by the standards for application in mortar and concrete due to its chemical inertness and fineness, as well as its extended setting time, it can be used as a replacement for stone filler or other powdered mineral admixture in the production of self-compacting concrete (SCC) in amounts up to 100%, with a maximum quantity of up to 100 kg/m3. The obtained results indicate that with the appropriate conversion, waste sludges, despite representing hazardous waste, can be used as safe products in the construction industry; i.e., the waste material can become a useful and valuable raw material by applying (respecting) all of the principles of the green economy.
T2  - Materials
T1  - Sustainable Application of Waste Sludges from the Wastewater Treatment Plant Generated during the Production of Heating Devices in the Construction Industry
VL  - 17
IS  - 5
SP  - 1089
DO  - 10.3390/ma17051089
ER  - 

@article{
author = "Stojmenović, Marija and Gulicovski, Jelena and Nišić, Neda and Ristić, Nenad and Liu, Shanke and Loredo, Jorge and Kragović, Milan",
year = "2024",
abstract = "This research presented, for the first time, the results of the successful application of the waste press sludges, WSLP (plant for lacquer and paint) and WSEP (powdery enamel plant), from a wastewater treatment plant generated during heating device production in the construction industry. The results of WSEP characterization and its influence on cement paste, mortar, and concrete properties showed that this material could be used as a cement replacement (with a maximum replacement amount of 20%) in producing mortar and concrete. Although waste WSLP sludge does not possess pozzolanic properties and does not meet the criteria prescribed by the standards for application in mortar and concrete due to its chemical inertness and fineness, as well as its extended setting time, it can be used as a replacement for stone filler or other powdered mineral admixture in the production of self-compacting concrete (SCC) in amounts up to 100%, with a maximum quantity of up to 100 kg/m3. The obtained results indicate that with the appropriate conversion, waste sludges, despite representing hazardous waste, can be used as safe products in the construction industry; i.e., the waste material can become a useful and valuable raw material by applying (respecting) all of the principles of the green economy.",
journal = "Materials",
title = "Sustainable Application of Waste Sludges from the Wastewater Treatment Plant Generated during the Production of Heating Devices in the Construction Industry",
volume = "17",
number = "5",
pages = "1089",
doi = "10.3390/ma17051089"
}

Stojmenović, M., Gulicovski, J., Nišić, N., Ristić, N., Liu, S., Loredo, J.,& Kragović, M.. (2024). Sustainable Application of Waste Sludges from the Wastewater Treatment Plant Generated during the Production of Heating Devices in the Construction Industry. in Materials, 17(5), 1089.
https://doi.org/10.3390/ma17051089

Stojmenović M, Gulicovski J, Nišić N, Ristić N, Liu S, Loredo J, Kragović M. Sustainable Application of Waste Sludges from the Wastewater Treatment Plant Generated during the Production of Heating Devices in the Construction Industry. in Materials. 2024;17(5):1089.
doi:10.3390/ma17051089 .

Stojmenović, Marija, Gulicovski, Jelena, Nišić, Neda, Ristić, Nenad, Liu, Shanke, Loredo, Jorge, Kragović, Milan, "Sustainable Application of Waste Sludges from the Wastewater Treatment Plant Generated during the Production of Heating Devices in the Construction Industry" in Materials, 17, no. 5 (2024):1089,
https://doi.org/10.3390/ma17051089 . .

TY  - JOUR
AU  - Gulicovski, Jelena
AU  - Stojmenović, Marija
AU  - Rosić, Milena
AU  - Vasić, Andrijana
AU  - Ristović, Ivica
AU  - Janković-Častvan, Ivona
AU  - Kragović, Milan
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12917
AB  - The possibility of using waste tailings produced by flotation in the lead and zinc mine of Grot, Serbia as a potential source of secondary mineral raw materials was examined. The aim of the research was primarily to carry out a detailed characterization in order to determine the dominant minerals, and, for the first time, to trace the changes occurring in the unit cells of the minerals present in that deposit. There was also a need to determine the exact proportions of the present mineral phases for their further application and utilization as natural resources in environmental protection. Samples were taken from three different sections of tailings: the crest of dam (JKB), outlet pipe of the flotation facility (JOF) and hydrocyclone overflow (JHC). Granulometric separation was performed to facilitate the extraction of certain minerals from waste. The results showed that all samples mainly contained quartz, clinochlore, calcite, albite, pyrite and biotite, but their ratios in each sample varied significantly. After characterization, samples were separated into different fractions and their mineralogical compositions were determined. Depending on the fraction, the mineralogical compositions also changed. Mineralogy and geochemical analysis indicate that waste tailings can be used as a secondary mineral raw materials source applicable in various industries.
T2  - Applied Sciences
T1  - Mineralogical Characterization of the Grot Lead and Zinc Mine Tailings from Aspects of Their Further Use as Raw Material
VL  - 14
IS  - 3
SP  - 1167
DO  - 10.3390/app14031167
ER  - 

@article{
author = "Gulicovski, Jelena and Stojmenović, Marija and Rosić, Milena and Vasić, Andrijana and Ristović, Ivica and Janković-Častvan, Ivona and Kragović, Milan",
year = "2024",
abstract = "The possibility of using waste tailings produced by flotation in the lead and zinc mine of Grot, Serbia as a potential source of secondary mineral raw materials was examined. The aim of the research was primarily to carry out a detailed characterization in order to determine the dominant minerals, and, for the first time, to trace the changes occurring in the unit cells of the minerals present in that deposit. There was also a need to determine the exact proportions of the present mineral phases for their further application and utilization as natural resources in environmental protection. Samples were taken from three different sections of tailings: the crest of dam (JKB), outlet pipe of the flotation facility (JOF) and hydrocyclone overflow (JHC). Granulometric separation was performed to facilitate the extraction of certain minerals from waste. The results showed that all samples mainly contained quartz, clinochlore, calcite, albite, pyrite and biotite, but their ratios in each sample varied significantly. After characterization, samples were separated into different fractions and their mineralogical compositions were determined. Depending on the fraction, the mineralogical compositions also changed. Mineralogy and geochemical analysis indicate that waste tailings can be used as a secondary mineral raw materials source applicable in various industries.",
journal = "Applied Sciences",
title = "Mineralogical Characterization of the Grot Lead and Zinc Mine Tailings from Aspects of Their Further Use as Raw Material",
volume = "14",
number = "3",
pages = "1167",
doi = "10.3390/app14031167"
}

Gulicovski, J., Stojmenović, M., Rosić, M., Vasić, A., Ristović, I., Janković-Častvan, I.,& Kragović, M.. (2024). Mineralogical Characterization of the Grot Lead and Zinc Mine Tailings from Aspects of Their Further Use as Raw Material. in Applied Sciences, 14(3), 1167.
https://doi.org/10.3390/app14031167

Gulicovski J, Stojmenović M, Rosić M, Vasić A, Ristović I, Janković-Častvan I, Kragović M. Mineralogical Characterization of the Grot Lead and Zinc Mine Tailings from Aspects of Their Further Use as Raw Material. in Applied Sciences. 2024;14(3):1167.
doi:10.3390/app14031167 .

Gulicovski, Jelena, Stojmenović, Marija, Rosić, Milena, Vasić, Andrijana, Ristović, Ivica, Janković-Častvan, Ivona, Kragović, Milan, "Mineralogical Characterization of the Grot Lead and Zinc Mine Tailings from Aspects of Their Further Use as Raw Material" in Applied Sciences, 14, no. 3 (2024):1167,
https://doi.org/10.3390/app14031167 . .

TY  - CONF
AU  - Nikolić, Katarina
AU  - Vasić, Andrijana
AU  - Kragović, Milan
AU  - Rosić, Milena
AU  - Janković-Častvan, Ivona
AU  - Stojmenović, Marija
AU  - Gulicovski, Jelena
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11979
AB  - This study presents the characterization of waste vitreous enamel generated during the production process of heating devices in a factory in Southeast Europe. The sample was analyzed for chemical composition and concentrations of heavy metals using inductively coupled plasma optical emission spectroscopy (ICP-OES), while the mineralogical composition was determined using X-ray diffraction (XRD). The functional groups were recorded using DRIFT spectroscopy, and the morphological and microstructural properties were investigated using FESEM measurements. The results showed that the sample waste vitreous enamel contains high levels of heavy metals and must be classified as hazardous waste. Quartz was found to be the most represented mineral in the sample, while oxides of metals Sb, Fe, Ti, and Cu appeared in the form of supporting minerals. The DRIFT spectra showed the presence of silicates, organic materials, and OH groups in Ti(IV)-OH crystal structure. The FESEM analysis revealed different sizes of particles mainly with polygonal forms and pronounced edges corresponding mostly to the silica and the alumina. These findings can contribute to the development of strategies for the safe and sustainable management of waste vitreous enamel.
PB  - Belgrade : University of Belgrade : Faculty of Mining and Geology
C3  - MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book
T1  - Analysis of chemical and structural features of waste vitreous enamel produced during the heating device manufacturing process
SP  - 303
EP  - 307
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11979
ER  - 

@conference{
author = "Nikolić, Katarina and Vasić, Andrijana and Kragović, Milan and Rosić, Milena and Janković-Častvan, Ivona and Stojmenović, Marija and Gulicovski, Jelena",
year = "2023",
abstract = "This study presents the characterization of waste vitreous enamel generated during the production process of heating devices in a factory in Southeast Europe. The sample was analyzed for chemical composition and concentrations of heavy metals using inductively coupled plasma optical emission spectroscopy (ICP-OES), while the mineralogical composition was determined using X-ray diffraction (XRD). The functional groups were recorded using DRIFT spectroscopy, and the morphological and microstructural properties were investigated using FESEM measurements. The results showed that the sample waste vitreous enamel contains high levels of heavy metals and must be classified as hazardous waste. Quartz was found to be the most represented mineral in the sample, while oxides of metals Sb, Fe, Ti, and Cu appeared in the form of supporting minerals. The DRIFT spectra showed the presence of silicates, organic materials, and OH groups in Ti(IV)-OH crystal structure. The FESEM analysis revealed different sizes of particles mainly with polygonal forms and pronounced edges corresponding mostly to the silica and the alumina. These findings can contribute to the development of strategies for the safe and sustainable management of waste vitreous enamel.",
publisher = "Belgrade : University of Belgrade : Faculty of Mining and Geology",
journal = "MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book",
title = "Analysis of chemical and structural features of waste vitreous enamel produced during the heating device manufacturing process",
pages = "303-307",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11979"
}

Nikolić, K., Vasić, A., Kragović, M., Rosić, M., Janković-Častvan, I., Stojmenović, M.,& Gulicovski, J.. (2023). Analysis of chemical and structural features of waste vitreous enamel produced during the heating device manufacturing process. in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book
Belgrade : University of Belgrade : Faculty of Mining and Geology., 303-307.
https://hdl.handle.net/21.15107/rcub_vinar_11979

Nikolić K, Vasić A, Kragović M, Rosić M, Janković-Častvan I, Stojmenović M, Gulicovski J. Analysis of chemical and structural features of waste vitreous enamel produced during the heating device manufacturing process. in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book. 2023;:303-307.
https://hdl.handle.net/21.15107/rcub_vinar_11979 .

Nikolić, Katarina, Vasić, Andrijana, Kragović, Milan, Rosić, Milena, Janković-Častvan, Ivona, Stojmenović, Marija, Gulicovski, Jelena, "Analysis of chemical and structural features of waste vitreous enamel produced during the heating device manufacturing process" in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book (2023):303-307,
https://hdl.handle.net/21.15107/rcub_vinar_11979 .

TY  - CONF
AU  - Gulicovski, Jelena
AU  - Nenadović, Miloš
AU  - Mirković, Miljana
AU  - Kljajević, Ljiljana
AU  - Bošković, Ivana
AU  - Vukčević, Marija
AU  - Nenadović, Snežana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11752
AB  - Due to the low CO2 emission of geopolymers compared to Portland cement, interest in their use as binding cement has increased in recent years. The main goal of this research is to relate the green and sustainable characteristics to the good mechanical and chemical properties of fly ashbased geopolymers. For those purposes, samples of different ratios of fly ash (FA) and metakaolin (MK) were prepared. Mineralogical characterization of the geopolymer samples conducted using X-ray powder diffraction (XRD) showed that in the geopolymer synthesis reaction new amorphous phase was formed. Diffuse reflectance infrared Fourier transform spectroscopy (DRIFT) confirmed characteristic bands of Si-O and O-Si-O groups at 1045 cm–1 . Compressive strength analysis revealed that the optimal ratio of FA and MK is 50:50 and exhibits the highest value, while X-ray photoelectron spectroscopy (XPS) analysis revealed the total reduction of carbon content in the alkali activated geopolymer with optimal stoichiometry 50:50. The results of this research indicates the possibility to obtain a geopolymer material with almost complete absence of carbon, which implies further application as a material with very high environmental potential and zero carbon emission.
PB  - Society of Chemists and Technologists of Macedonia
C3  - 26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia
T1  - Preparation and Performance of Low Content Carbon Geopolymer
SP  - 24
EP  - 24
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11752
ER  - 

@conference{
author = "Gulicovski, Jelena and Nenadović, Miloš and Mirković, Miljana and Kljajević, Ljiljana and Bošković, Ivana and Vukčević, Marija and Nenadović, Snežana",
year = "2023",
abstract = "Due to the low CO2 emission of geopolymers compared to Portland cement, interest in their use as binding cement has increased in recent years. The main goal of this research is to relate the green and sustainable characteristics to the good mechanical and chemical properties of fly ashbased geopolymers. For those purposes, samples of different ratios of fly ash (FA) and metakaolin (MK) were prepared. Mineralogical characterization of the geopolymer samples conducted using X-ray powder diffraction (XRD) showed that in the geopolymer synthesis reaction new amorphous phase was formed. Diffuse reflectance infrared Fourier transform spectroscopy (DRIFT) confirmed characteristic bands of Si-O and O-Si-O groups at 1045 cm–1 . Compressive strength analysis revealed that the optimal ratio of FA and MK is 50:50 and exhibits the highest value, while X-ray photoelectron spectroscopy (XPS) analysis revealed the total reduction of carbon content in the alkali activated geopolymer with optimal stoichiometry 50:50. The results of this research indicates the possibility to obtain a geopolymer material with almost complete absence of carbon, which implies further application as a material with very high environmental potential and zero carbon emission.",
publisher = "Society of Chemists and Technologists of Macedonia",
journal = "26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia",
title = "Preparation and Performance of Low Content Carbon Geopolymer",
pages = "24-24",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11752"
}

Gulicovski, J., Nenadović, M., Mirković, M., Kljajević, L., Bošković, I., Vukčević, M.,& Nenadović, S.. (2023). Preparation and Performance of Low Content Carbon Geopolymer. in 26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia
Society of Chemists and Technologists of Macedonia., 24-24.
https://hdl.handle.net/21.15107/rcub_vinar_11752

Gulicovski J, Nenadović M, Mirković M, Kljajević L, Bošković I, Vukčević M, Nenadović S. Preparation and Performance of Low Content Carbon Geopolymer. in 26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia. 2023;:24-24.
https://hdl.handle.net/21.15107/rcub_vinar_11752 .

Gulicovski, Jelena, Nenadović, Miloš, Mirković, Miljana, Kljajević, Ljiljana, Bošković, Ivana, Vukčević, Marija, Nenadović, Snežana, "Preparation and Performance of Low Content Carbon Geopolymer" in 26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia (2023):24-24,
https://hdl.handle.net/21.15107/rcub_vinar_11752 .

TY  - CONF
AU  - Nikolić, Katarina
AU  - Kragović, Milan
AU  - Stojmenović, Marija
AU  - Vasić, Andrijana
AU  - Kandić, Irina
AU  - Nišić, Neda
AU  - Gulicovski, Jelena J.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11978
AB  - In this study, a novel porous carbonaceous material, which has been synthesized from almond pits as precursors, has been characterized for the purpose of application as electrodes in electrochemical sensors. The powdery sample of activated carbonized almond pits was analyzed by X-ray diffraction (XRD) and Diffuse Reflectance Infrared Fourier Spectroscopy (DRIFT). Besides, the electrochemical properties of the sample were investigated in a three-electrode system using a CHI potentiostat. Obtained XRD diffractogram confirmed the amorphous phase of the sample, while DRIFT showed the presence of different functional groups. According to the results, synthesized carbonaceous material was found to possess great potential as a low-cost and eco-friendly material for electrochemical applications.
PB  - Belgrade : University of Belgrade : Faculty of Mining and Geology
C3  - MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book
T1  - Activated carbon from almond pits as low-cost material for electrochemical application
SP  - 308
EP  - 311
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11978
ER  - 

@conference{
author = "Nikolić, Katarina and Kragović, Milan and Stojmenović, Marija and Vasić, Andrijana and Kandić, Irina and Nišić, Neda and Gulicovski, Jelena J.",
year = "2023",
abstract = "In this study, a novel porous carbonaceous material, which has been synthesized from almond pits as precursors, has been characterized for the purpose of application as electrodes in electrochemical sensors. The powdery sample of activated carbonized almond pits was analyzed by X-ray diffraction (XRD) and Diffuse Reflectance Infrared Fourier Spectroscopy (DRIFT). Besides, the electrochemical properties of the sample were investigated in a three-electrode system using a CHI potentiostat. Obtained XRD diffractogram confirmed the amorphous phase of the sample, while DRIFT showed the presence of different functional groups. According to the results, synthesized carbonaceous material was found to possess great potential as a low-cost and eco-friendly material for electrochemical applications.",
publisher = "Belgrade : University of Belgrade : Faculty of Mining and Geology",
journal = "MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book",
title = "Activated carbon from almond pits as low-cost material for electrochemical application",
pages = "308-311",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11978"
}

Nikolić, K., Kragović, M., Stojmenović, M., Vasić, A., Kandić, I., Nišić, N.,& Gulicovski, J. J.. (2023). Activated carbon from almond pits as low-cost material for electrochemical application. in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book
Belgrade : University of Belgrade : Faculty of Mining and Geology., 308-311.
https://hdl.handle.net/21.15107/rcub_vinar_11978

Nikolić K, Kragović M, Stojmenović M, Vasić A, Kandić I, Nišić N, Gulicovski JJ. Activated carbon from almond pits as low-cost material for electrochemical application. in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book. 2023;:308-311.
https://hdl.handle.net/21.15107/rcub_vinar_11978 .

Nikolić, Katarina, Kragović, Milan, Stojmenović, Marija, Vasić, Andrijana, Kandić, Irina, Nišić, Neda, Gulicovski, Jelena J., "Activated carbon from almond pits as low-cost material for electrochemical application" in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book (2023):308-311,
https://hdl.handle.net/21.15107/rcub_vinar_11978 .

TY  - CONF
AU  - Nišić, Neda
AU  - Kragović, Milan
AU  - Žunić, Milan
AU  - Gulicovski, Jelena
AU  - Vasić, Andrijana
AU  - Kandić, Irina
AU  - Stojmenović, Marija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11996
AB  - Nanopowders of CeO2 as a major component and different rare earth oxides added as dopants were synthesized using the modified glycine-nitrate procedure (MGNP) for the purpose of fabrication of electrolytes for IT-SOFC. Synthesized nanopowder was characterized by XRPD and Raman spectroscopy. According to results, single phase solid solution of fluorite structure were evidenced. Produced powder was then subjected to sintering at 1550 ºC for 2 h in air. By SEM analysis, highly ordered microstructure of sintered sample was verified, while EDS method revealed that the sintered sample have chemical composition very similar to a nominal one. Afterwards, the ionic conductivity of the sintered sample was measured by EIS method. The highest value was obtained at 700 ºC, amounting to 1.92×10-1 Ω-1 cm-1 .
PB  - Belgrade : University of Belgrade : Faculty of Mining and Geology
C3  - MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book
T1  - Application of a new system of solid ionic conductors based on multi-doped ceria as electrolytes for it-sofc technology- test in a single cell
SP  - 316
EP  - 320
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11996
ER  - 

@conference{
author = "Nišić, Neda and Kragović, Milan and Žunić, Milan and Gulicovski, Jelena and Vasić, Andrijana and Kandić, Irina and Stojmenović, Marija",
year = "2023",
abstract = "Nanopowders of CeO2 as a major component and different rare earth oxides added as dopants were synthesized using the modified glycine-nitrate procedure (MGNP) for the purpose of fabrication of electrolytes for IT-SOFC. Synthesized nanopowder was characterized by XRPD and Raman spectroscopy. According to results, single phase solid solution of fluorite structure were evidenced. Produced powder was then subjected to sintering at 1550 ºC for 2 h in air. By SEM analysis, highly ordered microstructure of sintered sample was verified, while EDS method revealed that the sintered sample have chemical composition very similar to a nominal one. Afterwards, the ionic conductivity of the sintered sample was measured by EIS method. The highest value was obtained at 700 ºC, amounting to 1.92×10-1 Ω-1 cm-1 .",
publisher = "Belgrade : University of Belgrade : Faculty of Mining and Geology",
journal = "MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book",
title = "Application of a new system of solid ionic conductors based on multi-doped ceria as electrolytes for it-sofc technology- test in a single cell",
pages = "316-320",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11996"
}

Nišić, N., Kragović, M., Žunić, M., Gulicovski, J., Vasić, A., Kandić, I.,& Stojmenović, M.. (2023). Application of a new system of solid ionic conductors based on multi-doped ceria as electrolytes for it-sofc technology- test in a single cell. in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book
Belgrade : University of Belgrade : Faculty of Mining and Geology., 316-320.
https://hdl.handle.net/21.15107/rcub_vinar_11996

Nišić N, Kragović M, Žunić M, Gulicovski J, Vasić A, Kandić I, Stojmenović M. Application of a new system of solid ionic conductors based on multi-doped ceria as electrolytes for it-sofc technology- test in a single cell. in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book. 2023;:316-320.
https://hdl.handle.net/21.15107/rcub_vinar_11996 .

Nišić, Neda, Kragović, Milan, Žunić, Milan, Gulicovski, Jelena, Vasić, Andrijana, Kandić, Irina, Stojmenović, Marija, "Application of a new system of solid ionic conductors based on multi-doped ceria as electrolytes for it-sofc technology- test in a single cell" in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book (2023):316-320,
https://hdl.handle.net/21.15107/rcub_vinar_11996 .

TY  - CONF
AU  - Nišić, Neda
AU  - Kragović, Milan
AU  - Gulicovski, Jelena
AU  - Nikolić, Katarina
AU  - Vasić, Andrijana
AU  - Žunić, Milan
AU  - Stojmenović, Marija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11997
AB  - In the present paper, possible application of novel ceramic adhesives with implementation of waste sludge for bonding of heating devices constructions was studied. For a comparison, five different samples with increasing waste addition percentage were prepared and their performance as heat-resistant adhesives were evaluated in terms of chemical and thermostability as well as ecological safety. Based on ICP-OES analysis it was observed that only sample GC20 is not ecologically-safe due to high level of Cu+ concentration. By withstanding thermal treatment in the range of 200-800˚C for over 100h, all adhesive samples showed satisfactory thermostability. This research confirms the great potential of the studied materials for application as uncostly and eco-friendly adhesives for industrial purpose.
PB  - Belgrade : University of Belgrade : Faculty of Mining and Geology
C3  - MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book
T1  - Characterization of innovative high-temperature resistant adhesives with addition of aluminosilicate waste
SP  - 312
EP  - 315
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11997
ER  - 

@conference{
author = "Nišić, Neda and Kragović, Milan and Gulicovski, Jelena and Nikolić, Katarina and Vasić, Andrijana and Žunić, Milan and Stojmenović, Marija",
year = "2023",
abstract = "In the present paper, possible application of novel ceramic adhesives with implementation of waste sludge for bonding of heating devices constructions was studied. For a comparison, five different samples with increasing waste addition percentage were prepared and their performance as heat-resistant adhesives were evaluated in terms of chemical and thermostability as well as ecological safety. Based on ICP-OES analysis it was observed that only sample GC20 is not ecologically-safe due to high level of Cu+ concentration. By withstanding thermal treatment in the range of 200-800˚C for over 100h, all adhesive samples showed satisfactory thermostability. This research confirms the great potential of the studied materials for application as uncostly and eco-friendly adhesives for industrial purpose.",
publisher = "Belgrade : University of Belgrade : Faculty of Mining and Geology",
journal = "MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book",
title = "Characterization of innovative high-temperature resistant adhesives with addition of aluminosilicate waste",
pages = "312-315",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11997"
}

Nišić, N., Kragović, M., Gulicovski, J., Nikolić, K., Vasić, A., Žunić, M.,& Stojmenović, M.. (2023). Characterization of innovative high-temperature resistant adhesives with addition of aluminosilicate waste. in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book
Belgrade : University of Belgrade : Faculty of Mining and Geology., 312-315.
https://hdl.handle.net/21.15107/rcub_vinar_11997

Nišić N, Kragović M, Gulicovski J, Nikolić K, Vasić A, Žunić M, Stojmenović M. Characterization of innovative high-temperature resistant adhesives with addition of aluminosilicate waste. in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book. 2023;:312-315.
https://hdl.handle.net/21.15107/rcub_vinar_11997 .

Nišić, Neda, Kragović, Milan, Gulicovski, Jelena, Nikolić, Katarina, Vasić, Andrijana, Žunić, Milan, Stojmenović, Marija, "Characterization of innovative high-temperature resistant adhesives with addition of aluminosilicate waste" in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book (2023):312-315,
https://hdl.handle.net/21.15107/rcub_vinar_11997 .

TY  - CONF
AU  - Vasić, Andrijana
AU  - Stojmenović, Marija
AU  - Nikolić, Katarina
AU  - Kandić, Irina
AU  - Gulicovski, Jelena
AU  - Ristović, Miodrag
AU  - Kragović, Milan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11998
AB  - Xanthates are considered to be the most widely used reagents in the flotation processing of sulphide ores, and therefore are largely present in flotation tailings as residuals. Since xanthates posses a certain toxicity and numerous negative effects from an ecological point of view, it is very important to find a suitable solution for their removal from aqueous solutions. In this study, the removal of xanthate from aqueous solutions was investigated using modified waste slag as promising adsorbent. For that purpose, two different starting concentrations of xanthates were selected, -20, and 90 mg/l. The obtained results showed that over 90% of residual xanthate from the aqueous solution can be removed in a period of 24 hours by using modified waste slag when its initial concentration is 20 mg/dm3 .
PB  - Belgrade : University of Belgrade : Faculty of Mining and Geology
C3  - MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book
T1  - Removal of xanthate from aqueous solutions using modified waste slag as adsorbent
SP  - 321
EP  - 324
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11998
ER  - 

@conference{
author = "Vasić, Andrijana and Stojmenović, Marija and Nikolić, Katarina and Kandić, Irina and Gulicovski, Jelena and Ristović, Miodrag and Kragović, Milan",
year = "2023",
abstract = "Xanthates are considered to be the most widely used reagents in the flotation processing of sulphide ores, and therefore are largely present in flotation tailings as residuals. Since xanthates posses a certain toxicity and numerous negative effects from an ecological point of view, it is very important to find a suitable solution for their removal from aqueous solutions. In this study, the removal of xanthate from aqueous solutions was investigated using modified waste slag as promising adsorbent. For that purpose, two different starting concentrations of xanthates were selected, -20, and 90 mg/l. The obtained results showed that over 90% of residual xanthate from the aqueous solution can be removed in a period of 24 hours by using modified waste slag when its initial concentration is 20 mg/dm3 .",
publisher = "Belgrade : University of Belgrade : Faculty of Mining and Geology",
journal = "MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book",
title = "Removal of xanthate from aqueous solutions using modified waste slag as adsorbent",
pages = "321-324",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11998"
}

Vasić, A., Stojmenović, M., Nikolić, K., Kandić, I., Gulicovski, J., Ristović, M.,& Kragović, M.. (2023). Removal of xanthate from aqueous solutions using modified waste slag as adsorbent. in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book
Belgrade : University of Belgrade : Faculty of Mining and Geology., 321-324.
https://hdl.handle.net/21.15107/rcub_vinar_11998

Vasić A, Stojmenović M, Nikolić K, Kandić I, Gulicovski J, Ristović M, Kragović M. Removal of xanthate from aqueous solutions using modified waste slag as adsorbent. in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book. 2023;:321-324.
https://hdl.handle.net/21.15107/rcub_vinar_11998 .

Vasić, Andrijana, Stojmenović, Marija, Nikolić, Katarina, Kandić, Irina, Gulicovski, Jelena, Ristović, Miodrag, Kragović, Milan, "Removal of xanthate from aqueous solutions using modified waste slag as adsorbent" in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book (2023):321-324,
https://hdl.handle.net/21.15107/rcub_vinar_11998 .

TY  - CONF
AU  - Vasić, Andrijana
AU  - Stojmenović, Marija
AU  - Nikolić, Katarina
AU  - Nišić, Neda
AU  - Gulicovski, Jelena
AU  - Lišanin, Radmila
AU  - Kragović, Milan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11999
AB  - Because of their widespread use as reagents in the flotation processing of sulphide ores, xanthates are largely found in tailings as residues. Regrettably, it is known that xanthates are not stable compounds and their decomposition generates carbon disulfide (CS2), a substance that is considered toxic. In this study, the chemical stability of xanthate was evaluated by UV/Vis spectroscopy, as a function of pH and time. The zero charge point of modified waste slag was also determined. The obtained results showed that the lowest degree of xanthate degradation is for the pH=10 and was 24.72%. For different concentrations of the KNO3 (0.1, 0.01, and 0.001 mol/dm3 ) the point of zero charge of the modified waste slag was 7.28, respectively
PB  - Belgrade : University of Belgrade : Faculty of Mining and Geology
C3  - MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book
T1  - Xanthate removal as a function of pH and the point of zero charge
SP  - 325
EP  - 328
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11999
ER  - 

@conference{
author = "Vasić, Andrijana and Stojmenović, Marija and Nikolić, Katarina and Nišić, Neda and Gulicovski, Jelena and Lišanin, Radmila and Kragović, Milan",
year = "2023",
abstract = "Because of their widespread use as reagents in the flotation processing of sulphide ores, xanthates are largely found in tailings as residues. Regrettably, it is known that xanthates are not stable compounds and their decomposition generates carbon disulfide (CS2), a substance that is considered toxic. In this study, the chemical stability of xanthate was evaluated by UV/Vis spectroscopy, as a function of pH and time. The zero charge point of modified waste slag was also determined. The obtained results showed that the lowest degree of xanthate degradation is for the pH=10 and was 24.72%. For different concentrations of the KNO3 (0.1, 0.01, and 0.001 mol/dm3 ) the point of zero charge of the modified waste slag was 7.28, respectively",
publisher = "Belgrade : University of Belgrade : Faculty of Mining and Geology",
journal = "MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book",
title = "Xanthate removal as a function of pH and the point of zero charge",
pages = "325-328",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11999"
}

Vasić, A., Stojmenović, M., Nikolić, K., Nišić, N., Gulicovski, J., Lišanin, R.,& Kragović, M.. (2023). Xanthate removal as a function of pH and the point of zero charge. in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book
Belgrade : University of Belgrade : Faculty of Mining and Geology., 325-328.
https://hdl.handle.net/21.15107/rcub_vinar_11999

Vasić A, Stojmenović M, Nikolić K, Nišić N, Gulicovski J, Lišanin R, Kragović M. Xanthate removal as a function of pH and the point of zero charge. in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book. 2023;:325-328.
https://hdl.handle.net/21.15107/rcub_vinar_11999 .

Vasić, Andrijana, Stojmenović, Marija, Nikolić, Katarina, Nišić, Neda, Gulicovski, Jelena, Lišanin, Radmila, Kragović, Milan, "Xanthate removal as a function of pH and the point of zero charge" in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book (2023):325-328,
https://hdl.handle.net/21.15107/rcub_vinar_11999 .

TY  - JOUR
AU  - Nišić, Neda
AU  - Kragović, Milan
AU  - Gulicovski, Jelena
AU  - Žunić, Milan
AU  - Basoli, Francesco
AU  - Gordić, Milan
AU  - Stojmenović, Marija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11455
AB  - In recent years, the interest of the scientific community has become focused on the integration of circular economy principles by eliminating end-of-life concepts and forming zero-waste strategies. The present paper suggests the possible application of innovative, eco-friendly, cost-effective, and highly efficient ceramic materials with the partial implementation of aluminosilicate-based waste in the form of wastewater sludge in advanced technology solutions. The specific objective was to demonstrate the effective utilization of the investigated waste in the production of refractory adhesives and/or sealants for Intermediate-Temperature Solid-Oxide Fuel Cells (IT-SOFCs). Different physical–mechanical and chemical properties were determined along with the performance of leaching tests, the thermal cycling procedure, and leakage tests in a single cell. Based on the maintenance of mechanical integrity after thermal cycling and satisfying crystal and microstructural stability after high-temperature treatment, it was concluded that the investigated materials may be considered promising candidates for application as heat-resistant adhesives for connecting components in heating systems. However, they were not found to be applicable as sealants for IT-SOFCs in raw form according to the failure of testing in a single cell. Still, requirements for this purpose could be met after certain modifications of the composition and synthesis methodology, which presents the major initiative for our further research in this field. © 2023 by the authors.
T2  - Applied Sciences (Switzerland)
T1  - The Incorporation of Waste Sludge into the Production of High-Temperature-Resistant Adhesive Ceramic Materials
VL  - 13
IS  - 16
SP  - 9044
DO  - 10.3390/app13169044
ER  - 

@article{
author = "Nišić, Neda and Kragović, Milan and Gulicovski, Jelena and Žunić, Milan and Basoli, Francesco and Gordić, Milan and Stojmenović, Marija",
year = "2023",
abstract = "In recent years, the interest of the scientific community has become focused on the integration of circular economy principles by eliminating end-of-life concepts and forming zero-waste strategies. The present paper suggests the possible application of innovative, eco-friendly, cost-effective, and highly efficient ceramic materials with the partial implementation of aluminosilicate-based waste in the form of wastewater sludge in advanced technology solutions. The specific objective was to demonstrate the effective utilization of the investigated waste in the production of refractory adhesives and/or sealants for Intermediate-Temperature Solid-Oxide Fuel Cells (IT-SOFCs). Different physical–mechanical and chemical properties were determined along with the performance of leaching tests, the thermal cycling procedure, and leakage tests in a single cell. Based on the maintenance of mechanical integrity after thermal cycling and satisfying crystal and microstructural stability after high-temperature treatment, it was concluded that the investigated materials may be considered promising candidates for application as heat-resistant adhesives for connecting components in heating systems. However, they were not found to be applicable as sealants for IT-SOFCs in raw form according to the failure of testing in a single cell. Still, requirements for this purpose could be met after certain modifications of the composition and synthesis methodology, which presents the major initiative for our further research in this field. © 2023 by the authors.",
journal = "Applied Sciences (Switzerland)",
title = "The Incorporation of Waste Sludge into the Production of High-Temperature-Resistant Adhesive Ceramic Materials",
volume = "13",
number = "16",
pages = "9044",
doi = "10.3390/app13169044"
}

Nišić, N., Kragović, M., Gulicovski, J., Žunić, M., Basoli, F., Gordić, M.,& Stojmenović, M.. (2023). The Incorporation of Waste Sludge into the Production of High-Temperature-Resistant Adhesive Ceramic Materials. in Applied Sciences (Switzerland), 13(16), 9044.
https://doi.org/10.3390/app13169044

Nišić N, Kragović M, Gulicovski J, Žunić M, Basoli F, Gordić M, Stojmenović M. The Incorporation of Waste Sludge into the Production of High-Temperature-Resistant Adhesive Ceramic Materials. in Applied Sciences (Switzerland). 2023;13(16):9044.
doi:10.3390/app13169044 .

Nišić, Neda, Kragović, Milan, Gulicovski, Jelena, Žunić, Milan, Basoli, Francesco, Gordić, Milan, Stojmenović, Marija, "The Incorporation of Waste Sludge into the Production of High-Temperature-Resistant Adhesive Ceramic Materials" in Applied Sciences (Switzerland), 13, no. 16 (2023):9044,
https://doi.org/10.3390/app13169044 . .

TY  - CONF
AU  - Kandić, Irina
AU  - Kragović, Milan
AU  - Gulicovski, Jelena
AU  - Nikolić, Katarina
AU  - Nišić, Neda
AU  - Karadžić, Vesna
AU  - Stojmenović, Marija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11977
AB  - This scientific study investigated the use of activated carbon obtained from black alder cone-like flowers for the adsorption of cyanobacteria cells and cyanotoxins from raw water collected from Aleksandrovac Lake. The material was prepared by carbonization and activation, and the water sample was analysed for microcystin and cylindrospermopsin using LC-MS. The results showed that the lake had a high level of Cyanobacteria, making it unsafe for recreational activities. After treatment with the activated carbon, the removal efficiency was 99,8 %, and with no cyanotoxins remaining. The dominant cyanobacteria species was Raphidiopsis raciborskii, which is a producer of cylindrospermopsin. The study demonstrated the potential of activated carbon for removing harmful cyanobacteria and cyanotoxins from water sources.
PB  - Belgrade : University of Belgrade : Faculty of Mining and Geology
C3  - MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book
T1  - Removal of potentially toxic cyanobacteria by using
activated carbons obtained from biowaste
SP  - 286
EP  - 290
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11977
ER  - 

@conference{
author = "Kandić, Irina and Kragović, Milan and Gulicovski, Jelena and Nikolić, Katarina and Nišić, Neda and Karadžić, Vesna and Stojmenović, Marija",
year = "2023",
abstract = "This scientific study investigated the use of activated carbon obtained from black alder cone-like flowers for the adsorption of cyanobacteria cells and cyanotoxins from raw water collected from Aleksandrovac Lake. The material was prepared by carbonization and activation, and the water sample was analysed for microcystin and cylindrospermopsin using LC-MS. The results showed that the lake had a high level of Cyanobacteria, making it unsafe for recreational activities. After treatment with the activated carbon, the removal efficiency was 99,8 %, and with no cyanotoxins remaining. The dominant cyanobacteria species was Raphidiopsis raciborskii, which is a producer of cylindrospermopsin. The study demonstrated the potential of activated carbon for removing harmful cyanobacteria and cyanotoxins from water sources.",
publisher = "Belgrade : University of Belgrade : Faculty of Mining and Geology",
journal = "MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book",
title = "Removal of potentially toxic cyanobacteria by using
activated carbons obtained from biowaste",
pages = "286-290",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11977"
}

Kandić, I., Kragović, M., Gulicovski, J., Nikolić, K., Nišić, N., Karadžić, V.,& Stojmenović, M.. (2023). Removal of potentially toxic cyanobacteria by using
activated carbons obtained from biowaste. in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book
Belgrade : University of Belgrade : Faculty of Mining and Geology., 286-290.
https://hdl.handle.net/21.15107/rcub_vinar_11977

Kandić I, Kragović M, Gulicovski J, Nikolić K, Nišić N, Karadžić V, Stojmenović M. Removal of potentially toxic cyanobacteria by using
activated carbons obtained from biowaste. in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book. 2023;:286-290.
https://hdl.handle.net/21.15107/rcub_vinar_11977 .

Kandić, Irina, Kragović, Milan, Gulicovski, Jelena, Nikolić, Katarina, Nišić, Neda, Karadžić, Vesna, Stojmenović, Marija, "Removal of potentially toxic cyanobacteria by using
activated carbons obtained from biowaste" in MEP-23 : 9th International Conference Mining and Environmental Protection : Proceedings book (2023):286-290,
https://hdl.handle.net/21.15107/rcub_vinar_11977 .

TY  - CONF
AU  - Rosić, Milena
AU  - Čebela, Maria
AU  - Gulicovski, Jelena
AU  - Dodevski, Vladimir
AU  - Krstić, Sanja S.
AU  - Kragović, Milan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10820
AB  - We have used theoretical and experimental methods to investigate the octahedral tilting and related effects of Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, 0.2) compound. Both methods have shown that orthorhombic-perovskite structure (space group Pnma) is the most stable form and according to Glazer's classification belongs to ab+ a - tilt system. Our bond valence calculations (BVC) have shown ten additional perovskite-related modifications of the equilibrium Ca1-xGdxMnO3 structure, and their stability has been investigated as function of Gd doping. We have further studied the influence of gadolinium amount on Mn-О bond angles and distances, tilting of MnO6 octahedra around all three axes and deformation due to the presence of Jahn-Teller distortion around Mn3+ cation, and calculated the amount of Mn3+ in the system. The infrared reflection spectra of Ca1-xGdxMnO3 samples confirmed XRD results that Ca1-xGdxMnO3 nanopowders are of Pnma-1 structure and that the tilting of octahedra are increased with Gd doping. The EPR spectra are in accordance with the assumption that EPR linewidth is Mn-O-Mn angle dependent. The studied samples showed that small octahedra tilting in these samples brought only a small change of the EPR linewidth.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade
T1  - Related effects of Ca1-xGdxMnO3 (x = 0.05, 0.1, 0.15, 0.2) compound
SP  - 77
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10820
ER  - 

@conference{
author = "Rosić, Milena and Čebela, Maria and Gulicovski, Jelena and Dodevski, Vladimir and Krstić, Sanja S. and Kragović, Milan",
year = "2022",
abstract = "We have used theoretical and experimental methods to investigate the octahedral tilting and related effects of Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, 0.2) compound. Both methods have shown that orthorhombic-perovskite structure (space group Pnma) is the most stable form and according to Glazer's classification belongs to ab+ a - tilt system. Our bond valence calculations (BVC) have shown ten additional perovskite-related modifications of the equilibrium Ca1-xGdxMnO3 structure, and their stability has been investigated as function of Gd doping. We have further studied the influence of gadolinium amount on Mn-О bond angles and distances, tilting of MnO6 octahedra around all three axes and deformation due to the presence of Jahn-Teller distortion around Mn3+ cation, and calculated the amount of Mn3+ in the system. The infrared reflection spectra of Ca1-xGdxMnO3 samples confirmed XRD results that Ca1-xGdxMnO3 nanopowders are of Pnma-1 structure and that the tilting of octahedra are increased with Gd doping. The EPR spectra are in accordance with the assumption that EPR linewidth is Mn-O-Mn angle dependent. The studied samples showed that small octahedra tilting in these samples brought only a small change of the EPR linewidth.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade",
title = "Related effects of Ca1-xGdxMnO3 (x = 0.05, 0.1, 0.15, 0.2) compound",
pages = "77",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10820"
}

Rosić, M., Čebela, M., Gulicovski, J., Dodevski, V., Krstić, S. S.,& Kragović, M.. (2022). Related effects of Ca1-xGdxMnO3 (x = 0.05, 0.1, 0.15, 0.2) compound. in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade
Belgrade : Serbian Ceramic Society., 77.
https://hdl.handle.net/21.15107/rcub_vinar_10820

Rosić M, Čebela M, Gulicovski J, Dodevski V, Krstić SS, Kragović M. Related effects of Ca1-xGdxMnO3 (x = 0.05, 0.1, 0.15, 0.2) compound. in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade. 2022;:77.
https://hdl.handle.net/21.15107/rcub_vinar_10820 .

Rosić, Milena, Čebela, Maria, Gulicovski, Jelena, Dodevski, Vladimir, Krstić, Sanja S., Kragović, Milan, "Related effects of Ca1-xGdxMnO3 (x = 0.05, 0.1, 0.15, 0.2) compound" in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade (2022):77,
https://hdl.handle.net/21.15107/rcub_vinar_10820 .

TY  - CONF
AU  - Dodevski, Vladimir
AU  - Kragović, Milan
AU  - Rosić, Milena
AU  - Krstić, Sanja
AU  - Čebela, Maria
AU  - Stojmenović, Marija
AU  - Gulicovski, Jelena
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11510
AB  - The main goal of this research is to obtain carbon material (by pyrolysis of biomass in the presence of inert gas N2) and then physical activation with CO2 obtained active carbon material and finally chemical treatment (using TEOS - tetraethyl orthosilicate) enabled the creation of highly porous bio-SiO2 ceramics. The results of experiments of pyrolysis at several high operating temperatures, activation of carbon material and with multicycle action using TEOS clearly showed the possibility of obtaining SiO2 nanostructures, after carbothermal reduction to 600 °C. Increasing the activation temperature and the duration of the activation process initiates the development of SiO2 particles within the porous structure. The final SiO2 powder product was analyzed by several different test methods. Structure and morphology were analyzed by X-ray diffraction (XRD) and scanning electron microscope (SEM). Surface chemistry and functional surface groups were determined by Fourier Transform Infrared Spectroscopy (FTIR). The obtained results are guidelines for further study and understanding of the properties of SiO2 and for the possibility of its application
PB  - University of Belgrade : Institute for Multidisciplinary Research
C3  - 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade
T1  - Synthesis of obtaining SiO2 from biomass, characterization of structural and chemical properties and the possibility of potential application
SP  - 50
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11510
ER  - 

@conference{
author = "Dodevski, Vladimir and Kragović, Milan and Rosić, Milena and Krstić, Sanja and Čebela, Maria and Stojmenović, Marija and Gulicovski, Jelena",
year = "2022",
abstract = "The main goal of this research is to obtain carbon material (by pyrolysis of biomass in the presence of inert gas N2) and then physical activation with CO2 obtained active carbon material and finally chemical treatment (using TEOS - tetraethyl orthosilicate) enabled the creation of highly porous bio-SiO2 ceramics. The results of experiments of pyrolysis at several high operating temperatures, activation of carbon material and with multicycle action using TEOS clearly showed the possibility of obtaining SiO2 nanostructures, after carbothermal reduction to 600 °C. Increasing the activation temperature and the duration of the activation process initiates the development of SiO2 particles within the porous structure. The final SiO2 powder product was analyzed by several different test methods. Structure and morphology were analyzed by X-ray diffraction (XRD) and scanning electron microscope (SEM). Surface chemistry and functional surface groups were determined by Fourier Transform Infrared Spectroscopy (FTIR). The obtained results are guidelines for further study and understanding of the properties of SiO2 and for the possibility of its application",
publisher = "University of Belgrade : Institute for Multidisciplinary Research",
journal = "6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade",
title = "Synthesis of obtaining SiO2 from biomass, characterization of structural and chemical properties and the possibility of potential application",
pages = "50",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11510"
}

Dodevski, V., Kragović, M., Rosić, M., Krstić, S., Čebela, M., Stojmenović, M.,& Gulicovski, J.. (2022). Synthesis of obtaining SiO2 from biomass, characterization of structural and chemical properties and the possibility of potential application. in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade
University of Belgrade : Institute for Multidisciplinary Research., 50.
https://hdl.handle.net/21.15107/rcub_vinar_11510

Dodevski V, Kragović M, Rosić M, Krstić S, Čebela M, Stojmenović M, Gulicovski J. Synthesis of obtaining SiO2 from biomass, characterization of structural and chemical properties and the possibility of potential application. in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade. 2022;:50.
https://hdl.handle.net/21.15107/rcub_vinar_11510 .

Dodevski, Vladimir, Kragović, Milan, Rosić, Milena, Krstić, Sanja, Čebela, Maria, Stojmenović, Marija, Gulicovski, Jelena, "Synthesis of obtaining SiO2 from biomass, characterization of structural and chemical properties and the possibility of potential application" in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade (2022):50,
https://hdl.handle.net/21.15107/rcub_vinar_11510 .

TY  - CONF
AU  - Dodevski, Vladimir
AU  - Kragović, Milan
AU  - Rosić, Milena
AU  - Krstić, Sanja
AU  - Čebela, Maria
AU  - Stojmenović, Marija
AU  - Gulicovski, Jelena
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11512
AB  - The aim of this research is to convert biowaste into carbon material and later into active carbon material. With that, we got two things in one go. We have received new material that is ready for various applications in various spheres of life and on the other hand we have removed waste and thus we have prevented additional pollution and preserved the environment. In our work, we used hydrothermal carbonization to obtain active carbon material from biowaste, exactly plane tree fruit. Various acids in different ratios were used as activators. The effects of the chemical agent on the structure of the obtained material were investigated. It was noticed that the process parameter pH value of the initial solution affects the structure, morphology and properties of the obtained final product, active carbon material. The values of specific surfaces of the treated sample increase by lowering the pH value. Characterization of the obtained activated carbon material was performed by nitrogen adsorption-desorption isotherms, X-ray diffraction (XRD) and scanning electron microscopy (SEM). Functional surface groups were determined by Fourier Transform Infrared Spectroscopy (FTIR).
PB  - Faculty of Management Herceg Novi : Montenegro
C3  - 1st International conference on advances in science and technology COAST 2022 : book of abstracts; May 26-29; Herceg Novi
T1  - Preparation and characterization of active carbon from biowaste using acid
SP  - 47
EP  - 47
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11512
ER  - 

@conference{
author = "Dodevski, Vladimir and Kragović, Milan and Rosić, Milena and Krstić, Sanja and Čebela, Maria and Stojmenović, Marija and Gulicovski, Jelena",
year = "2022",
abstract = "The aim of this research is to convert biowaste into carbon material and later into active carbon material. With that, we got two things in one go. We have received new material that is ready for various applications in various spheres of life and on the other hand we have removed waste and thus we have prevented additional pollution and preserved the environment. In our work, we used hydrothermal carbonization to obtain active carbon material from biowaste, exactly plane tree fruit. Various acids in different ratios were used as activators. The effects of the chemical agent on the structure of the obtained material were investigated. It was noticed that the process parameter pH value of the initial solution affects the structure, morphology and properties of the obtained final product, active carbon material. The values of specific surfaces of the treated sample increase by lowering the pH value. Characterization of the obtained activated carbon material was performed by nitrogen adsorption-desorption isotherms, X-ray diffraction (XRD) and scanning electron microscopy (SEM). Functional surface groups were determined by Fourier Transform Infrared Spectroscopy (FTIR).",
publisher = "Faculty of Management Herceg Novi : Montenegro",
journal = "1st International conference on advances in science and technology COAST 2022 : book of abstracts; May 26-29; Herceg Novi",
title = "Preparation and characterization of active carbon from biowaste using acid",
pages = "47-47",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11512"
}

Dodevski, V., Kragović, M., Rosić, M., Krstić, S., Čebela, M., Stojmenović, M.,& Gulicovski, J.. (2022). Preparation and characterization of active carbon from biowaste using acid. in 1st International conference on advances in science and technology COAST 2022 : book of abstracts; May 26-29; Herceg Novi
Faculty of Management Herceg Novi : Montenegro., 47-47.
https://hdl.handle.net/21.15107/rcub_vinar_11512

Dodevski V, Kragović M, Rosić M, Krstić S, Čebela M, Stojmenović M, Gulicovski J. Preparation and characterization of active carbon from biowaste using acid. in 1st International conference on advances in science and technology COAST 2022 : book of abstracts; May 26-29; Herceg Novi. 2022;:47-47.
https://hdl.handle.net/21.15107/rcub_vinar_11512 .

Dodevski, Vladimir, Kragović, Milan, Rosić, Milena, Krstić, Sanja, Čebela, Maria, Stojmenović, Marija, Gulicovski, Jelena, "Preparation and characterization of active carbon from biowaste using acid" in 1st International conference on advances in science and technology COAST 2022 : book of abstracts; May 26-29; Herceg Novi (2022):47-47,
https://hdl.handle.net/21.15107/rcub_vinar_11512 .

TY  - CONF
AU  - Dodevski, Vladimir
AU  - Kragović, Milan
AU  - Rosić, Milena
AU  - Krstić, Sanja
AU  - Čebela, Maria
AU  - Stojmenović, Marija
AU  - Gulicovski, Jelena
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11513
AB  - Activated carbons were successfully prepared using biowaste as a cheap and renewable raw material. Carbonization was performed on biomass first under nitrogen N2 atmosphere at 850ºC, and then were physical activated at different temperatures and different times of activation in atmosphere of carbon dioxide CO2. The influence of temperature and time of activation on physical, structural and morphological properties was studied by XRD, Raman spectroscopy, FTIR, BET, SEM analysis. The increase of temperature and activation time leads to the increase of specific surface area of carbon material. The charge storage ability was evaluated and systematically studied by means of Cyclic Voltammetry and Impedance method. The specific discharge capacitance of activate carbon materials in different pH–aqueous electrolytes (KOH, Na2SO4 and H2SO4), increases with the surface area, indicating that the double layer charging is controlled primarily by the development of surface porosity. The active carbon material with the most developed porosity maintained a high capacitance of 110.06 Fg-1 in KOH, 80.62 Fg-1 in Na2SO4 and 126.9 Fg-1 in H2SO4, at a very high scan rate of 300 mVs-1 . The micro/mesoporosity, depending on the type of aqueous electrolyte, was found to control not only the specific capacitance of materials, but also the hydrogen storage, C–H bonding and the relaxation time of adsorption.
PB  - University of Belgrade : Faculty of Physical Chemistry
C3  - COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade
T1  - Electrochemical Properties of Active Carbon Materials Obtained from Biowaste
SP  - 32
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11513
ER  - 

@conference{
author = "Dodevski, Vladimir and Kragović, Milan and Rosić, Milena and Krstić, Sanja and Čebela, Maria and Stojmenović, Marija and Gulicovski, Jelena",
year = "2022",
abstract = "Activated carbons were successfully prepared using biowaste as a cheap and renewable raw material. Carbonization was performed on biomass first under nitrogen N2 atmosphere at 850ºC, and then were physical activated at different temperatures and different times of activation in atmosphere of carbon dioxide CO2. The influence of temperature and time of activation on physical, structural and morphological properties was studied by XRD, Raman spectroscopy, FTIR, BET, SEM analysis. The increase of temperature and activation time leads to the increase of specific surface area of carbon material. The charge storage ability was evaluated and systematically studied by means of Cyclic Voltammetry and Impedance method. The specific discharge capacitance of activate carbon materials in different pH–aqueous electrolytes (KOH, Na2SO4 and H2SO4), increases with the surface area, indicating that the double layer charging is controlled primarily by the development of surface porosity. The active carbon material with the most developed porosity maintained a high capacitance of 110.06 Fg-1 in KOH, 80.62 Fg-1 in Na2SO4 and 126.9 Fg-1 in H2SO4, at a very high scan rate of 300 mVs-1 . The micro/mesoporosity, depending on the type of aqueous electrolyte, was found to control not only the specific capacitance of materials, but also the hydrogen storage, C–H bonding and the relaxation time of adsorption.",
publisher = "University of Belgrade : Faculty of Physical Chemistry",
journal = "COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade",
title = "Electrochemical Properties of Active Carbon Materials Obtained from Biowaste",
pages = "32",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11513"
}

Dodevski, V., Kragović, M., Rosić, M., Krstić, S., Čebela, M., Stojmenović, M.,& Gulicovski, J.. (2022). Electrochemical Properties of Active Carbon Materials Obtained from Biowaste. in COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade
University of Belgrade : Faculty of Physical Chemistry., 32.
https://hdl.handle.net/21.15107/rcub_vinar_11513

Dodevski V, Kragović M, Rosić M, Krstić S, Čebela M, Stojmenović M, Gulicovski J. Electrochemical Properties of Active Carbon Materials Obtained from Biowaste. in COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade. 2022;:32.
https://hdl.handle.net/21.15107/rcub_vinar_11513 .

Dodevski, Vladimir, Kragović, Milan, Rosić, Milena, Krstić, Sanja, Čebela, Maria, Stojmenović, Marija, Gulicovski, Jelena, "Electrochemical Properties of Active Carbon Materials Obtained from Biowaste" in COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade (2022):32,
https://hdl.handle.net/21.15107/rcub_vinar_11513 .

TY  - CONF
AU  - Labus, Nebojša
AU  - Gulicovski, Jelena
AU  - Čebela, Maria
AU  - Rosić, Milena
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11505
AB  - Nanocrystalline powders of Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, and 0.2) have been synthesized by the modified glycine nitrate procedure and pressed into pellets that served as green bodies for a systematic investigation on their structural and microstructural properties [1]. Dilatometric measurements were performed in order to confirm the optimal sintering temperature. Dilatometric curves, besides sintering, are recording superimposed phase transition and linear expansion. Using a dilatometric curve, three temperatures were determined at which the examined sample shows significant changes. At 1055 °C–1194 °C certain second order phase transition is evident, at 1365 °C–1409 °C intensive nitrogen oxide extrusion, and in duration of 86 min at 877 °C heating ramp thorough isothermal holding at 1410 °C until 158 min cooling schedule at 1331 °C sintering is performed. Vickers hardness values were obtained based on the change in the surface area of the diamond pyramid. The results indicate that the hardness of the Ca1-xGdxMnO3 system (x = 0.05; 0.1; 0.15; 0.2) is not conditioned by the amount of doped gadolinium.
PB  - University of Belgrade : Institute for Multidisciplinary Research
C3  - 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade
T1  - Dilatometric study of nanostructured Ca1-xGdxMnO3 (X=0.05; 0.1; 0.15; 0.2)
SP  - 68
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11505
ER  - 

@conference{
author = "Labus, Nebojša and Gulicovski, Jelena and Čebela, Maria and Rosić, Milena",
year = "2022",
abstract = "Nanocrystalline powders of Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, and 0.2) have been synthesized by the modified glycine nitrate procedure and pressed into pellets that served as green bodies for a systematic investigation on their structural and microstructural properties [1]. Dilatometric measurements were performed in order to confirm the optimal sintering temperature. Dilatometric curves, besides sintering, are recording superimposed phase transition and linear expansion. Using a dilatometric curve, three temperatures were determined at which the examined sample shows significant changes. At 1055 °C–1194 °C certain second order phase transition is evident, at 1365 °C–1409 °C intensive nitrogen oxide extrusion, and in duration of 86 min at 877 °C heating ramp thorough isothermal holding at 1410 °C until 158 min cooling schedule at 1331 °C sintering is performed. Vickers hardness values were obtained based on the change in the surface area of the diamond pyramid. The results indicate that the hardness of the Ca1-xGdxMnO3 system (x = 0.05; 0.1; 0.15; 0.2) is not conditioned by the amount of doped gadolinium.",
publisher = "University of Belgrade : Institute for Multidisciplinary Research",
journal = "6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade",
title = "Dilatometric study of nanostructured Ca1-xGdxMnO3 (X=0.05; 0.1; 0.15; 0.2)",
pages = "68",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11505"
}

Labus, N., Gulicovski, J., Čebela, M.,& Rosić, M.. (2022). Dilatometric study of nanostructured Ca1-xGdxMnO3 (X=0.05; 0.1; 0.15; 0.2). in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade
University of Belgrade : Institute for Multidisciplinary Research., 68.
https://hdl.handle.net/21.15107/rcub_vinar_11505

Labus N, Gulicovski J, Čebela M, Rosić M. Dilatometric study of nanostructured Ca1-xGdxMnO3 (X=0.05; 0.1; 0.15; 0.2). in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade. 2022;:68.
https://hdl.handle.net/21.15107/rcub_vinar_11505 .

Labus, Nebojša, Gulicovski, Jelena, Čebela, Maria, Rosić, Milena, "Dilatometric study of nanostructured Ca1-xGdxMnO3 (X=0.05; 0.1; 0.15; 0.2)" in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade (2022):68,
https://hdl.handle.net/21.15107/rcub_vinar_11505 .

TY  - JOUR
AU  - Kandić, Irina
AU  - Kragović, Milan
AU  - Krstić, Jugoslav
AU  - Gulicovski, Jelena J.
AU  - Popović, Jasmina
AU  - Rosić, Milena
AU  - Karadžić, Vesna
AU  - Stojmenović, Marija
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11980
AB  - The impact of urbanization and modern agricultural practice has led to accelerated eutrophication of aquatic ecosystems, which has resulted in the massive development of cyanobacteria. Very often, in response to various environmental influences, cyanobacteria produce potentially car-cinogenic cyanotoxins. Long-term human exposure to cyanotoxins, through drinking water as well as recreational water (i.e., rivers or lakes), can cause serious health consequences. In order to overcome this problem, this paper presents the synthesis of completely new activated carbons and their potential application in contaminated water treatment. The synthesis and characterization of new active carbon materials obtained from waste biomass, date-palm leaf stalks (P_AC) and black alder cone-like flowers (A_AC) of reliable physical and chemical characteristics were presented in this article. The commercial activated carbon (C_AC) was also examined for the purpose of comparisons with the obtained materials. The detailed characterization of materials was carried out by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), low-temperature N2 physisorption, and Field emission scanning electron microscopy (FESEM). Preliminary analyzes of the adsorption capacities of all activated carbon materials were conducted on water samples from Aleksandrovac Lake (Southern part of Serbia), as a eutrophic lake, in order to remove Cyanobacteria from water. The results after 24 h of filtration showed removal efficiencies for P_AC, A_AC, and C_AC of 99.99%, 99.99% and 89.79%, respectively.
T2  - International Journal of Environmental Research and Public Health
T1  - Natural Cyanobacteria Removers Obtained from Bio-Waste Date-Palm Leaf Stalks and Black Alder Cone-Like Flowers
VL  - 19
IS  - 11
SP  - 6639
DO  - 10.3390/ijerph19116639
ER  - 

@article{
author = "Kandić, Irina and Kragović, Milan and Krstić, Jugoslav and Gulicovski, Jelena J. and Popović, Jasmina and Rosić, Milena and Karadžić, Vesna and Stojmenović, Marija",
year = "2022",
abstract = "The impact of urbanization and modern agricultural practice has led to accelerated eutrophication of aquatic ecosystems, which has resulted in the massive development of cyanobacteria. Very often, in response to various environmental influences, cyanobacteria produce potentially car-cinogenic cyanotoxins. Long-term human exposure to cyanotoxins, through drinking water as well as recreational water (i.e., rivers or lakes), can cause serious health consequences. In order to overcome this problem, this paper presents the synthesis of completely new activated carbons and their potential application in contaminated water treatment. The synthesis and characterization of new active carbon materials obtained from waste biomass, date-palm leaf stalks (P_AC) and black alder cone-like flowers (A_AC) of reliable physical and chemical characteristics were presented in this article. The commercial activated carbon (C_AC) was also examined for the purpose of comparisons with the obtained materials. The detailed characterization of materials was carried out by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), low-temperature N2 physisorption, and Field emission scanning electron microscopy (FESEM). Preliminary analyzes of the adsorption capacities of all activated carbon materials were conducted on water samples from Aleksandrovac Lake (Southern part of Serbia), as a eutrophic lake, in order to remove Cyanobacteria from water. The results after 24 h of filtration showed removal efficiencies for P_AC, A_AC, and C_AC of 99.99%, 99.99% and 89.79%, respectively.",
journal = "International Journal of Environmental Research and Public Health",
title = "Natural Cyanobacteria Removers Obtained from Bio-Waste Date-Palm Leaf Stalks and Black Alder Cone-Like Flowers",
volume = "19",
number = "11",
pages = "6639",
doi = "10.3390/ijerph19116639"
}

Kandić, I., Kragović, M., Krstić, J., Gulicovski, J. J., Popović, J., Rosić, M., Karadžić, V.,& Stojmenović, M.. (2022). Natural Cyanobacteria Removers Obtained from Bio-Waste Date-Palm Leaf Stalks and Black Alder Cone-Like Flowers. in International Journal of Environmental Research and Public Health, 19(11), 6639.
https://doi.org/10.3390/ijerph19116639

Kandić I, Kragović M, Krstić J, Gulicovski JJ, Popović J, Rosić M, Karadžić V, Stojmenović M. Natural Cyanobacteria Removers Obtained from Bio-Waste Date-Palm Leaf Stalks and Black Alder Cone-Like Flowers. in International Journal of Environmental Research and Public Health. 2022;19(11):6639.
doi:10.3390/ijerph19116639 .

Kandić, Irina, Kragović, Milan, Krstić, Jugoslav, Gulicovski, Jelena J., Popović, Jasmina, Rosić, Milena, Karadžić, Vesna, Stojmenović, Marija, "Natural Cyanobacteria Removers Obtained from Bio-Waste Date-Palm Leaf Stalks and Black Alder Cone-Like Flowers" in International Journal of Environmental Research and Public Health, 19, no. 11 (2022):6639,
https://doi.org/10.3390/ijerph19116639 . .

TY  - JOUR
AU  - Kragović, Milan M.
AU  - Stojmenović, Marija
AU  - Ristić, Nenad
AU  - Milićević, Sonja
AU  - Živković, Sanja
AU  - Liu, Shanke
AU  - Gulicovski, Jelena
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10414
AB  - Solving problems with hazardous waste materials is of crucial importance today. In the presented study, the application of waste vitreous enamel as a cement replacement up to 30% in mortar and concrete production was investigated. The chemical and physical-chemical characterization of the starting material was performed, as well as a leaching test and physical-mechanical characterization of mortar and concrete mixes. Obtained results showed that, due to its chemical composition, the vitreous enamel used must be classified as hazardous waste. At the same time, it possesses pozzolanic properties and satisfies minimal criteria for use as a cement replacement. Testing mortars and concrete mixes indicate that waste vitreous enamel can be applied as a construction material for cement replacement in the maximal amount of 20%. The leaching test was performed in accordance with international standard EN 12457-2 on hardened mortar with a maximal cement replacement of 20%. The results showed that there was no significant release of toxic elements, i.e., that the practical application of hazardous waste vitreous enamel in the construction industry may be fully in line with environmental standards.
T2  - Buildings
T1  - Application of the Hazardous Waste Vitreous Enamel Generated in the Production Process of Heating Devices as a Partial Replacement for Cement
VL  - 12
IS  - 8
SP  - 1287
DO  - 10.3390/buildings12081287
ER  - 

@article{
author = "Kragović, Milan M. and Stojmenović, Marija and Ristić, Nenad and Milićević, Sonja and Živković, Sanja and Liu, Shanke and Gulicovski, Jelena",
year = "2022",
abstract = "Solving problems with hazardous waste materials is of crucial importance today. In the presented study, the application of waste vitreous enamel as a cement replacement up to 30% in mortar and concrete production was investigated. The chemical and physical-chemical characterization of the starting material was performed, as well as a leaching test and physical-mechanical characterization of mortar and concrete mixes. Obtained results showed that, due to its chemical composition, the vitreous enamel used must be classified as hazardous waste. At the same time, it possesses pozzolanic properties and satisfies minimal criteria for use as a cement replacement. Testing mortars and concrete mixes indicate that waste vitreous enamel can be applied as a construction material for cement replacement in the maximal amount of 20%. The leaching test was performed in accordance with international standard EN 12457-2 on hardened mortar with a maximal cement replacement of 20%. The results showed that there was no significant release of toxic elements, i.e., that the practical application of hazardous waste vitreous enamel in the construction industry may be fully in line with environmental standards.",
journal = "Buildings",
title = "Application of the Hazardous Waste Vitreous Enamel Generated in the Production Process of Heating Devices as a Partial Replacement for Cement",
volume = "12",
number = "8",
pages = "1287",
doi = "10.3390/buildings12081287"
}

Kragović, M. M., Stojmenović, M., Ristić, N., Milićević, S., Živković, S., Liu, S.,& Gulicovski, J.. (2022). Application of the Hazardous Waste Vitreous Enamel Generated in the Production Process of Heating Devices as a Partial Replacement for Cement. in Buildings, 12(8), 1287.
https://doi.org/10.3390/buildings12081287

Kragović MM, Stojmenović M, Ristić N, Milićević S, Živković S, Liu S, Gulicovski J. Application of the Hazardous Waste Vitreous Enamel Generated in the Production Process of Heating Devices as a Partial Replacement for Cement. in Buildings. 2022;12(8):1287.
doi:10.3390/buildings12081287 .

Kragović, Milan M., Stojmenović, Marija, Ristić, Nenad, Milićević, Sonja, Živković, Sanja, Liu, Shanke, Gulicovski, Jelena, "Application of the Hazardous Waste Vitreous Enamel Generated in the Production Process of Heating Devices as a Partial Replacement for Cement" in Buildings, 12, no. 8 (2022):1287,
https://doi.org/10.3390/buildings12081287 . .

TY  - JOUR
AU  - Nenadović, Snežana B.
AU  - Gulicovski, Jelena J.
AU  - Mirković, Miljana M.
AU  - Kljajević, Ljiljana M.
AU  - Bošković, Ivana
AU  - Vukčević, Mira
AU  - Nenadović, Miloš
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10253
AB  - In recent years geopolymers have shown increased interest as binders with low CO2 emission compared to Portland cement. The main goal of this research is focused on connecting green and sustainable characteristics with the mechanical and chemical properties of fly ash-based geopolymer. The samples of different ratios of fly ash (FA) and metakaolin (MK) were prepared. X-ray powder diffraction (XRD) showed that in the geopolymer synthesis reaction a new amorphous phase was formed. Diffuse reflectance infrared Fourier transform spectroscopy (DRIFT) confirmed characteristic bands of the Si-O and O-Si-O groups at 1045 cm−1. Compressive strength analysis revealed that the optimal ratio of FA and MK is 50:50 and exhibits the highest value. X-ray photoelectron spectroscopy (XPS) analysis revealed the total reduction of carbon content in the alkali-activated geopolymer with the optimal stoichiometry of 50:50. This indicates the possibility of obtaining a geopolymer material with an almost complete absence of carbon, which implies further application as a material with a very high environmental potential and of zero carbon emissions.
T2  - Sustainability
T1  - Structural, Mechanical and Chemical Properties of Low Content Carbon Geopolymer
VL  - 14
IS  - 9
SP  - 4885
DO  - 10.3390/su14094885
ER  - 

@article{
author = "Nenadović, Snežana B. and Gulicovski, Jelena J. and Mirković, Miljana M. and Kljajević, Ljiljana M. and Bošković, Ivana and Vukčević, Mira and Nenadović, Miloš",
year = "2022",
abstract = "In recent years geopolymers have shown increased interest as binders with low CO2 emission compared to Portland cement. The main goal of this research is focused on connecting green and sustainable characteristics with the mechanical and chemical properties of fly ash-based geopolymer. The samples of different ratios of fly ash (FA) and metakaolin (MK) were prepared. X-ray powder diffraction (XRD) showed that in the geopolymer synthesis reaction a new amorphous phase was formed. Diffuse reflectance infrared Fourier transform spectroscopy (DRIFT) confirmed characteristic bands of the Si-O and O-Si-O groups at 1045 cm−1. Compressive strength analysis revealed that the optimal ratio of FA and MK is 50:50 and exhibits the highest value. X-ray photoelectron spectroscopy (XPS) analysis revealed the total reduction of carbon content in the alkali-activated geopolymer with the optimal stoichiometry of 50:50. This indicates the possibility of obtaining a geopolymer material with an almost complete absence of carbon, which implies further application as a material with a very high environmental potential and of zero carbon emissions.",
journal = "Sustainability",
title = "Structural, Mechanical and Chemical Properties of Low Content Carbon Geopolymer",
volume = "14",
number = "9",
pages = "4885",
doi = "10.3390/su14094885"
}

Nenadović, S. B., Gulicovski, J. J., Mirković, M. M., Kljajević, L. M., Bošković, I., Vukčević, M.,& Nenadović, M.. (2022). Structural, Mechanical and Chemical Properties of Low Content Carbon Geopolymer. in Sustainability, 14(9), 4885.
https://doi.org/10.3390/su14094885

Nenadović SB, Gulicovski JJ, Mirković MM, Kljajević LM, Bošković I, Vukčević M, Nenadović M. Structural, Mechanical and Chemical Properties of Low Content Carbon Geopolymer. in Sustainability. 2022;14(9):4885.
doi:10.3390/su14094885 .

Nenadović, Snežana B., Gulicovski, Jelena J., Mirković, Miljana M., Kljajević, Ljiljana M., Bošković, Ivana, Vukčević, Mira, Nenadović, Miloš, "Structural, Mechanical and Chemical Properties of Low Content Carbon Geopolymer" in Sustainability, 14, no. 9 (2022):4885,
https://doi.org/10.3390/su14094885 . .

TY  - CONF
AU  - Kandić, Irina
AU  - Kragović, Milan
AU  - Vasić, Andrijana
AU  - Nišić, Neda
AU  - Nikolić, Katarina
AU  - Gulicovski, Jelena
AU  - Stojmenović, Marija
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11958
AB  - Adsorption is one of the well-known methods in the removal of various pollutants from water bodies. The activated carbon material has great potential in water purification as an adsorbent. In process of adsorption various pollutants from water, such as different type of pathogens and toxins that can be potential risk for human health, can be effectively removed by activated carbon. The aim of this study is detail characterization of newly synthesized activated carbon materials from biowaste. Dried date palm leaf stalk (Phoenix dactylifera L.) and black alder cone-like flowers (Alnus glutinosa L.) have been chosen as bio-waste precursors. The activated carbon materials were firstly carbonized in atmosphere of N2 and then activated in atmosphere of CO2. Both processes are performed at 750 °C during 1 h. The yields of materials were 36.5 % and 24.7 % made of datepalm leaf stalk (P_AC) and black alder cone-like (A_AC) flowers, respectively. The commercial activated carbon has been characterized in order to compare with synthesized materials. For structural and chemical properties of materials was characterized in detail by: X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), low temperature N2 physisorption and Field emission scanning electron microscopy (FESEM). According to those results, materials obtained from date palm leaf stalk and black alder fruits show that newly synthesized materials have properties of an adsorbent with good potential for usage in water purification from different types of pollutants.
PB  - Belgrade : Institute for Multidisciplinary Research, University of Belgrade
C3  - 6CSCS : Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials : Book of abstracts
T1  - Characterization of active carbon materials obtained from bio waste for potential use in water purification
SP  - 38
EP  - 38
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11958
ER  - 

@conference{
author = "Kandić, Irina and Kragović, Milan and Vasić, Andrijana and Nišić, Neda and Nikolić, Katarina and Gulicovski, Jelena and Stojmenović, Marija",
year = "2022",
abstract = "Adsorption is one of the well-known methods in the removal of various pollutants from water bodies. The activated carbon material has great potential in water purification as an adsorbent. In process of adsorption various pollutants from water, such as different type of pathogens and toxins that can be potential risk for human health, can be effectively removed by activated carbon. The aim of this study is detail characterization of newly synthesized activated carbon materials from biowaste. Dried date palm leaf stalk (Phoenix dactylifera L.) and black alder cone-like flowers (Alnus glutinosa L.) have been chosen as bio-waste precursors. The activated carbon materials were firstly carbonized in atmosphere of N2 and then activated in atmosphere of CO2. Both processes are performed at 750 °C during 1 h. The yields of materials were 36.5 % and 24.7 % made of datepalm leaf stalk (P_AC) and black alder cone-like (A_AC) flowers, respectively. The commercial activated carbon has been characterized in order to compare with synthesized materials. For structural and chemical properties of materials was characterized in detail by: X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), low temperature N2 physisorption and Field emission scanning electron microscopy (FESEM). According to those results, materials obtained from date palm leaf stalk and black alder fruits show that newly synthesized materials have properties of an adsorbent with good potential for usage in water purification from different types of pollutants.",
publisher = "Belgrade : Institute for Multidisciplinary Research, University of Belgrade",
journal = "6CSCS : Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials : Book of abstracts",
title = "Characterization of active carbon materials obtained from bio waste for potential use in water purification",
pages = "38-38",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11958"
}

Kandić, I., Kragović, M., Vasić, A., Nišić, N., Nikolić, K., Gulicovski, J.,& Stojmenović, M.. (2022). Characterization of active carbon materials obtained from bio waste for potential use in water purification. in 6CSCS : Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials : Book of abstracts
Belgrade : Institute for Multidisciplinary Research, University of Belgrade., 38-38.
https://hdl.handle.net/21.15107/rcub_vinar_11958

Kandić I, Kragović M, Vasić A, Nišić N, Nikolić K, Gulicovski J, Stojmenović M. Characterization of active carbon materials obtained from bio waste for potential use in water purification. in 6CSCS : Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials : Book of abstracts. 2022;:38-38.
https://hdl.handle.net/21.15107/rcub_vinar_11958 .

Kandić, Irina, Kragović, Milan, Vasić, Andrijana, Nišić, Neda, Nikolić, Katarina, Gulicovski, Jelena, Stojmenović, Marija, "Characterization of active carbon materials obtained from bio waste for potential use in water purification" in 6CSCS : Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials : Book of abstracts (2022):38-38,
https://hdl.handle.net/21.15107/rcub_vinar_11958 .

TY  - CONF
AU  - Nedeljković, Andrijana
AU  - Nišić, Neda
AU  - Nikolić, Katarina
AU  - Kandić, Irina
AU  - Stojmenović, Marija
AU  - Gulicovski, Jelena
AU  - Kragović, Milan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11957
AB  - In order to avoid environmental issues considering disposal of great volumes of waste generated from the mining industry processes there is a tendency among researchers to find potential use of these harmful by-products. Waste slag is one such waste product since the content of different undesirable elements like cadmium, arsenic, zinc and other heavy metals may be at a level that can potentially endanger the environment and cause public health issues. On the other hand, tailings generated in the flotation facilities are also considered to be environmentally harmful because of different residual organic reagents that are applied in the process. As it is well-known, xanthates are the most widely used reagents in flotation processing of the sulfide ores, and, therefore largely present in tailings. Besides, xanthates are reported to pose toxicity and numerous negative impacts from the ecological point of view. That explains why it is of great importance to find efficient and low-cost routes for minimizing their remaining levels in tailings, therefore exposure to environment. In this study, xanthate absorption by using of the waste slag as adsorbent was investigated. For that purpose, three different starting concentrations of xanthates were selected, -20, 50 and 90 mg/l. The mass of the absorbent i.e. waste slag put into 50 ml of xanthate solution amounted to 0.01 g. Experiment was conducted on room temperature while pH value was set to be 10. The percentage of the total xanthates content absorbed was evaluated after the period of 24 h. Obtained results indicated that potential reuse of the waste slag for the removal of xanthates, may be justified and after 24 h, 98 %, 58 % and 62 % of the xanthates were adsorbed, respectively. However, further examination is needed in terms of better understanding of xanthate absorption mechanisms and improvement of waste slag absorption efficiency.
PB  - Belgrade : Institute for Multidisciplinary Research, University of Belgrade
C3  - 6CSCS : Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials : Book of abstracts
T1  - Xanthate absorption kinetics as a function of the starting concentration with the use of the waste slag as adsorbent
SP  - 52
EP  - 52
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11957
ER  - 

@conference{
author = "Nedeljković, Andrijana and Nišić, Neda and Nikolić, Katarina and Kandić, Irina and Stojmenović, Marija and Gulicovski, Jelena and Kragović, Milan",
year = "2022",
abstract = "In order to avoid environmental issues considering disposal of great volumes of waste generated from the mining industry processes there is a tendency among researchers to find potential use of these harmful by-products. Waste slag is one such waste product since the content of different undesirable elements like cadmium, arsenic, zinc and other heavy metals may be at a level that can potentially endanger the environment and cause public health issues. On the other hand, tailings generated in the flotation facilities are also considered to be environmentally harmful because of different residual organic reagents that are applied in the process. As it is well-known, xanthates are the most widely used reagents in flotation processing of the sulfide ores, and, therefore largely present in tailings. Besides, xanthates are reported to pose toxicity and numerous negative impacts from the ecological point of view. That explains why it is of great importance to find efficient and low-cost routes for minimizing their remaining levels in tailings, therefore exposure to environment. In this study, xanthate absorption by using of the waste slag as adsorbent was investigated. For that purpose, three different starting concentrations of xanthates were selected, -20, 50 and 90 mg/l. The mass of the absorbent i.e. waste slag put into 50 ml of xanthate solution amounted to 0.01 g. Experiment was conducted on room temperature while pH value was set to be 10. The percentage of the total xanthates content absorbed was evaluated after the period of 24 h. Obtained results indicated that potential reuse of the waste slag for the removal of xanthates, may be justified and after 24 h, 98 %, 58 % and 62 % of the xanthates were adsorbed, respectively. However, further examination is needed in terms of better understanding of xanthate absorption mechanisms and improvement of waste slag absorption efficiency.",
publisher = "Belgrade : Institute for Multidisciplinary Research, University of Belgrade",
journal = "6CSCS : Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials : Book of abstracts",
title = "Xanthate absorption kinetics as a function of the starting concentration with the use of the waste slag as adsorbent",
pages = "52-52",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11957"
}

Nedeljković, A., Nišić, N., Nikolić, K., Kandić, I., Stojmenović, M., Gulicovski, J.,& Kragović, M.. (2022). Xanthate absorption kinetics as a function of the starting concentration with the use of the waste slag as adsorbent. in 6CSCS : Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials : Book of abstracts
Belgrade : Institute for Multidisciplinary Research, University of Belgrade., 52-52.
https://hdl.handle.net/21.15107/rcub_vinar_11957

Nedeljković A, Nišić N, Nikolić K, Kandić I, Stojmenović M, Gulicovski J, Kragović M. Xanthate absorption kinetics as a function of the starting concentration with the use of the waste slag as adsorbent. in 6CSCS : Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials : Book of abstracts. 2022;:52-52.
https://hdl.handle.net/21.15107/rcub_vinar_11957 .

Nedeljković, Andrijana, Nišić, Neda, Nikolić, Katarina, Kandić, Irina, Stojmenović, Marija, Gulicovski, Jelena, Kragović, Milan, "Xanthate absorption kinetics as a function of the starting concentration with the use of the waste slag as adsorbent" in 6CSCS : Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials : Book of abstracts (2022):52-52,
https://hdl.handle.net/21.15107/rcub_vinar_11957 .

TY  - CONF
AU  - Nišić, Neda
AU  - Kragović, Milan
AU  - Nedeljković, Andrijana
AU  - Kandić, Irina
AU  - Nikolić, Katarina
AU  - Gulicovski, Jelena
AU  - Stojmenović, Marija
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11959
AB  - In the present paper, possible application of novel concept synthesis method of ceramic composite sealants (CCS) with implementation of alumosilicate-based waste material in intermediate temperature solid oxide fuel cells (IT-SOFC) was investigated. Besides two different basic variants of alumina matrix nanocomposites stabilized by rare earths and carbon materials (CCS-RE and CCS-C), for this purpose two additional sealant compositions with 5 wt.% addition of waste material (CCS-RE5 and CCS-C5) were designated for a comparative study. The aim of this research was to characterize the waste material, as well as the starting components used for developing ceramic composites through various characterization techniques. Analytical procedures for determining chemical composition with focus on heavy metal content in waste was performed in order to ensure the waste is ecologically acceptable to be used as an additive. Besides, the crystalline phase composition of the raw materials as well as of the sealant compositions was determined by X-ray diffraction (XRD) analysis. Finally, obtained results revealed that this research may provide the possible solution of forming a cost-effective, environmentally-friendly and high-efficient ceramic sealants for application in IT-SOFC by incorporating waste materials in its composition, without significant negative effects on its performance and main properties.
PB  - Belgrade : Institute for Multidisciplinary Research, University of Belgrade
C3  - 6CSCS : Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials : Book of abstracts
T1  - Characterization of high temperature ceramic
composite sealants (CCS) with addition of
alumosilicate based waste material for the
potential use in it-sofc
SP  - 48
EP  - 48
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11959
ER  - 

@conference{
author = "Nišić, Neda and Kragović, Milan and Nedeljković, Andrijana and Kandić, Irina and Nikolić, Katarina and Gulicovski, Jelena and Stojmenović, Marija",
year = "2022",
abstract = "In the present paper, possible application of novel concept synthesis method of ceramic composite sealants (CCS) with implementation of alumosilicate-based waste material in intermediate temperature solid oxide fuel cells (IT-SOFC) was investigated. Besides two different basic variants of alumina matrix nanocomposites stabilized by rare earths and carbon materials (CCS-RE and CCS-C), for this purpose two additional sealant compositions with 5 wt.% addition of waste material (CCS-RE5 and CCS-C5) were designated for a comparative study. The aim of this research was to characterize the waste material, as well as the starting components used for developing ceramic composites through various characterization techniques. Analytical procedures for determining chemical composition with focus on heavy metal content in waste was performed in order to ensure the waste is ecologically acceptable to be used as an additive. Besides, the crystalline phase composition of the raw materials as well as of the sealant compositions was determined by X-ray diffraction (XRD) analysis. Finally, obtained results revealed that this research may provide the possible solution of forming a cost-effective, environmentally-friendly and high-efficient ceramic sealants for application in IT-SOFC by incorporating waste materials in its composition, without significant negative effects on its performance and main properties.",
publisher = "Belgrade : Institute for Multidisciplinary Research, University of Belgrade",
journal = "6CSCS : Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials : Book of abstracts",
title = "Characterization of high temperature ceramic
composite sealants (CCS) with addition of
alumosilicate based waste material for the
potential use in it-sofc",
pages = "48-48",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11959"
}

Nišić, N., Kragović, M., Nedeljković, A., Kandić, I., Nikolić, K., Gulicovski, J.,& Stojmenović, M.. (2022). Characterization of high temperature ceramic
composite sealants (CCS) with addition of
alumosilicate based waste material for the
potential use in it-sofc. in 6CSCS : Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials : Book of abstracts
Belgrade : Institute for Multidisciplinary Research, University of Belgrade., 48-48.
https://hdl.handle.net/21.15107/rcub_vinar_11959

Nišić N, Kragović M, Nedeljković A, Kandić I, Nikolić K, Gulicovski J, Stojmenović M. Characterization of high temperature ceramic
composite sealants (CCS) with addition of
alumosilicate based waste material for the
potential use in it-sofc. in 6CSCS : Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials : Book of abstracts. 2022;:48-48.
https://hdl.handle.net/21.15107/rcub_vinar_11959 .

Nišić, Neda, Kragović, Milan, Nedeljković, Andrijana, Kandić, Irina, Nikolić, Katarina, Gulicovski, Jelena, Stojmenović, Marija, "Characterization of high temperature ceramic
composite sealants (CCS) with addition of
alumosilicate based waste material for the
potential use in it-sofc" in 6CSCS : Advanced Ceramics and Application : 6th Conference of The Serbian Society for Ceramic Materials : Book of abstracts (2022):48-48,
https://hdl.handle.net/21.15107/rcub_vinar_11959 .

TY  - JOUR
AU  - Kragović, Milan M.
AU  - Ristić, Nenad
AU  - Gulicovski, Jelena J.
AU  - Nedeljković, Andrijana
AU  - Pašalić, Snežana
AU  - Ristović, Ivica
AU  - Stojmenović, Marija
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9914
AB  - The presented study is a continuation of the research with the aim of finding a useful
value of hazardous waste slag generated by the combustion of lignite in heating plants and its
application in the construction industry. The different amounts of cement (10%, 15%, 20% and
25%) were replaced with waste slag and silica fumes in mortars and concrete production. Detailed
physical–mechanical characterization was performed on the mortar and concrete samples according
to standard procedures. Test results indicated that the replacement of cement with slag and silica
fumes reduces the physical and mechanical properties of mortar and concrete, but cement composites
retained the required structural properties. If 15–20% is considered an acceptable level of compressive
strength decrease, then it can be concluded that waste slag can be implemented in practice and be
used as a construction material, with cement replacement in the maximal amount of 20% (17.8%
of slag and 2.2% of silica fumes). On hardened mortar samples with maximal possible cement
replacement (20%), physical–chemical characterizations were performed and included X-ray and
infrared spectrophotometry, scanning electron microscopy, and thermal analysis. Results showed the
absence of new phases and the presence of only those which were characteristic for starting samples,
predominantly portlandite, quartz, calcite and calcium silicate-oxide
T2  - Minerals
T1  - Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete
DO  - 10.3390/min11090925
ER  - 

@article{
author = "Kragović, Milan M. and Ristić, Nenad and Gulicovski, Jelena J. and Nedeljković, Andrijana and Pašalić, Snežana and Ristović, Ivica and Stojmenović, Marija",
year = "2021",
abstract = "The presented study is a continuation of the research with the aim of finding a useful
value of hazardous waste slag generated by the combustion of lignite in heating plants and its
application in the construction industry. The different amounts of cement (10%, 15%, 20% and
25%) were replaced with waste slag and silica fumes in mortars and concrete production. Detailed
physical–mechanical characterization was performed on the mortar and concrete samples according
to standard procedures. Test results indicated that the replacement of cement with slag and silica
fumes reduces the physical and mechanical properties of mortar and concrete, but cement composites
retained the required structural properties. If 15–20% is considered an acceptable level of compressive
strength decrease, then it can be concluded that waste slag can be implemented in practice and be
used as a construction material, with cement replacement in the maximal amount of 20% (17.8%
of slag and 2.2% of silica fumes). On hardened mortar samples with maximal possible cement
replacement (20%), physical–chemical characterizations were performed and included X-ray and
infrared spectrophotometry, scanning electron microscopy, and thermal analysis. Results showed the
absence of new phases and the presence of only those which were characteristic for starting samples,
predominantly portlandite, quartz, calcite and calcium silicate-oxide",
journal = "Minerals",
title = "Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete",
doi = "10.3390/min11090925"
}

Kragović, M. M., Ristić, N., Gulicovski, J. J., Nedeljković, A., Pašalić, S., Ristović, I.,& Stojmenović, M.. (2021). Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete. in Minerals.
https://doi.org/10.3390/min11090925

Kragović MM, Ristić N, Gulicovski JJ, Nedeljković A, Pašalić S, Ristović I, Stojmenović M. Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete. in Minerals. 2021;.
doi:10.3390/min11090925 .

Kragović, Milan M., Ristić, Nenad, Gulicovski, Jelena J., Nedeljković, Andrijana, Pašalić, Snežana, Ristović, Ivica, Stojmenović, Marija, "Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete" in Minerals (2021),
https://doi.org/10.3390/min11090925 . .

TY  - CONF
AU  - Nišić, Neda
AU  - Gulicovski, Jelena J.
AU  - Kragović, Milan
AU  - Nedeljković, Andrijana
AU  - Žunić, Milan
AU  - Rosić, Milena
AU  - Stojmenović, Marija
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10798
AB  - In the present paper, possible application of novel concept synthesis method of glass-ceramic sealant with implementation of alumosilicate-based waste material in intermediate temperature solid oxide fuel cells (IT-SOFC) was investigated. Besides basic components for glass-ceramic sealant (sample GC0), for this purpose four additional sealant compositions with certain waste content, designated as GC1, GC2, GC3, GC4, were prepared for a comparative study. Waste was added in the basic sealant composition in such a way that certain percent of alumosilicate clay was substituted with alumosilicate-based waste material, with proper amount of water as a solvent. Waste share in compositions was 5, 10, 15 and 20% of total amout of alumosilicate clay as a replacement, respectively.A total of five different joint specimens were assembled by placing a sealant paste of 10mm thickness between two bricks to form brick/glass–ceramic/brick sandwich specimens appropriate for further heat treatments. Such formed ‘green’ joints were initially air-dried for 24h at room temperature, which was required for solvent to evaporate and cause initial bonding. Heating cycle in the period of four weeks was carried out in a chamber furnace. First day samples were heated to 200 ̊C for 2 h. Each day heating temperature was raised for 100 °C while dwelling time was prolonged for one hour, so by the end of the first week samples were heated to 600 °C for 6 hours. Next three weeks annealing of the samples was performed at 600 °C for 6 hours, 700 °C for 7 hours and 800 °C for 8 h, respectively, after what the thermal cycle was completed. The heating rate of the furnace at each heating step in the given joining process was 5 °C/min,while cooling was at natural speed. Mentioned firing temperatures were selected in accordance to common operating temperature range of IT-SOFC so as to simulate real working conditions. After the completion of the cycle, it was observed that all variants of the sealant withstood high temperatures without significant cracks or damage. Moreover, after detailed chemical, physical, mechanical and optical properties examination it was determined that compositions remained unaltered, which clearly indicates to their stability and reliability that is required for their application as sealants for IT-SOFC components. In addition, this research shows the possibility of forming a cost-effective, environmentally-friendly and high- efficient sealant for application in IT-SOFC by incorporating waste materials in its composition, without significant negative effects on its performance and main properties.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
T1  - Novel Glass-Ceramic Sealant With Addition of Alumosilicate-Based Waste Material for Application in IT-SOFC
SP  - 65
EP  - 66
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10798
ER  - 

@conference{
author = "Nišić, Neda and Gulicovski, Jelena J. and Kragović, Milan and Nedeljković, Andrijana and Žunić, Milan and Rosić, Milena and Stojmenović, Marija",
year = "2021",
abstract = "In the present paper, possible application of novel concept synthesis method of glass-ceramic sealant with implementation of alumosilicate-based waste material in intermediate temperature solid oxide fuel cells (IT-SOFC) was investigated. Besides basic components for glass-ceramic sealant (sample GC0), for this purpose four additional sealant compositions with certain waste content, designated as GC1, GC2, GC3, GC4, were prepared for a comparative study. Waste was added in the basic sealant composition in such a way that certain percent of alumosilicate clay was substituted with alumosilicate-based waste material, with proper amount of water as a solvent. Waste share in compositions was 5, 10, 15 and 20% of total amout of alumosilicate clay as a replacement, respectively.A total of five different joint specimens were assembled by placing a sealant paste of 10mm thickness between two bricks to form brick/glass–ceramic/brick sandwich specimens appropriate for further heat treatments. Such formed ‘green’ joints were initially air-dried for 24h at room temperature, which was required for solvent to evaporate and cause initial bonding. Heating cycle in the period of four weeks was carried out in a chamber furnace. First day samples were heated to 200 ̊C for 2 h. Each day heating temperature was raised for 100 °C while dwelling time was prolonged for one hour, so by the end of the first week samples were heated to 600 °C for 6 hours. Next three weeks annealing of the samples was performed at 600 °C for 6 hours, 700 °C for 7 hours and 800 °C for 8 h, respectively, after what the thermal cycle was completed. The heating rate of the furnace at each heating step in the given joining process was 5 °C/min,while cooling was at natural speed. Mentioned firing temperatures were selected in accordance to common operating temperature range of IT-SOFC so as to simulate real working conditions. After the completion of the cycle, it was observed that all variants of the sealant withstood high temperatures without significant cracks or damage. Moreover, after detailed chemical, physical, mechanical and optical properties examination it was determined that compositions remained unaltered, which clearly indicates to their stability and reliability that is required for their application as sealants for IT-SOFC components. In addition, this research shows the possibility of forming a cost-effective, environmentally-friendly and high- efficient sealant for application in IT-SOFC by incorporating waste materials in its composition, without significant negative effects on its performance and main properties.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade",
title = "Novel Glass-Ceramic Sealant With Addition of Alumosilicate-Based Waste Material for Application in IT-SOFC",
pages = "65-66",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10798"
}

Nišić, N., Gulicovski, J. J., Kragović, M., Nedeljković, A., Žunić, M., Rosić, M.,& Stojmenović, M.. (2021). Novel Glass-Ceramic Sealant With Addition of Alumosilicate-Based Waste Material for Application in IT-SOFC. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
Belgrade : Serbian Ceramic Society., 65-66.
https://hdl.handle.net/21.15107/rcub_vinar_10798

Nišić N, Gulicovski JJ, Kragović M, Nedeljković A, Žunić M, Rosić M, Stojmenović M. Novel Glass-Ceramic Sealant With Addition of Alumosilicate-Based Waste Material for Application in IT-SOFC. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade. 2021;:65-66.
https://hdl.handle.net/21.15107/rcub_vinar_10798 .

Nišić, Neda, Gulicovski, Jelena J., Kragović, Milan, Nedeljković, Andrijana, Žunić, Milan, Rosić, Milena, Stojmenović, Marija, "Novel Glass-Ceramic Sealant With Addition of Alumosilicate-Based Waste Material for Application in IT-SOFC" in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade (2021):65-66,
https://hdl.handle.net/21.15107/rcub_vinar_10798 .

TY  - CONF
AU  - Nišić, Neda
AU  - Kandić, Irina
AU  - Ristić, N.
AU  - Stojmenović, Marija
AU  - Gulicovski, Jelena
AU  - Kragović, Milan
AU  - Nedeljković, Andrijana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11956
AB  - This paper presents the examination of potential application of slag, obtained from lignite combustion process in heating plant in Valjevo, Serbia, as a replacement for cement in mortars and concrete production. Waste slag was characterized with X-Ray Diffraction Analysis, Field Emission Scanning Electron Microscopy and Gamma spectrometric analysis, while its application possibility was investigated with testing Pozzolan activity Strength activity index, Activity index and Water requirement. The aim of this study is to determine under what conditions the slag could successfully replace cement in construction industry in certain percentages. Based on presented results it was concluded that, after mixing with silicate fume, waste slag can be used for the purpose mentioned. Optimal proportion of cement replacement is 20%-: 18% of slag and 2% of silica fume.
PB  - Society of Physical Chemists of Serbia : Belgrade
C3  - PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry
T1  - Potential use of slag generated from lignite combustion in hitting plants
SP  - 576
EP  - 579
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11956
ER  - 

@conference{
author = "Nišić, Neda and Kandić, Irina and Ristić, N. and Stojmenović, Marija and Gulicovski, Jelena and Kragović, Milan and Nedeljković, Andrijana",
year = "2021",
abstract = "This paper presents the examination of potential application of slag, obtained from lignite combustion process in heating plant in Valjevo, Serbia, as a replacement for cement in mortars and concrete production. Waste slag was characterized with X-Ray Diffraction Analysis, Field Emission Scanning Electron Microscopy and Gamma spectrometric analysis, while its application possibility was investigated with testing Pozzolan activity Strength activity index, Activity index and Water requirement. The aim of this study is to determine under what conditions the slag could successfully replace cement in construction industry in certain percentages. Based on presented results it was concluded that, after mixing with silicate fume, waste slag can be used for the purpose mentioned. Optimal proportion of cement replacement is 20%-: 18% of slag and 2% of silica fume.",
publisher = "Society of Physical Chemists of Serbia : Belgrade",
journal = "PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry",
title = "Potential use of slag generated from lignite combustion in hitting plants",
pages = "576-579",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11956"
}

Nišić, N., Kandić, I., Ristić, N., Stojmenović, M., Gulicovski, J., Kragović, M.,& Nedeljković, A.. (2021). Potential use of slag generated from lignite combustion in hitting plants. in PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia : Belgrade., 576-579.
https://hdl.handle.net/21.15107/rcub_vinar_11956

Nišić N, Kandić I, Ristić N, Stojmenović M, Gulicovski J, Kragović M, Nedeljković A. Potential use of slag generated from lignite combustion in hitting plants. in PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry. 2021;:576-579.
https://hdl.handle.net/21.15107/rcub_vinar_11956 .

Nišić, Neda, Kandić, Irina, Ristić, N., Stojmenović, Marija, Gulicovski, Jelena, Kragović, Milan, Nedeljković, Andrijana, "Potential use of slag generated from lignite combustion in hitting plants" in PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry (2021):576-579,
https://hdl.handle.net/21.15107/rcub_vinar_11956 .