TY  - CONF
AU  - Tadić, Tamara
AU  - Bulatović, Sandra
AU  - Marković, Bojana
AU  - Nastasović, Aleksandra
AU  - Ilić, Mila
AU  - Vuković, Zorica
AU  - Onjia, Antonije
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7050
AB  - In the present study, synthesized macroporous copolymer was used for the sorption of lindane
from an aqueous solution. This organochlorine pesticide is classified, according to US EPA, as
mutagenic and teratogenic. Residues of lindane can persist in the environment, migrate long
distances, and cause widespread contamination. In this way, lindane residues can reach the
human body through the food chain. The usage of this pesticide is banned in most countries.
However, lindane remains a serious toxicological problem at industrial sites where lindane was
used coupled with improper wastewater disposal and has led to serious contamination. In
addition, some countries still allow the production and use of lindane, and despite localized
restrictions, lindane contamination remains a global problem. Taking into account these
reasons, its removal from the environment is of a great significance. The obtained macroporous
copolymer was syntesized via suspension copolymerization and was characterized by Fourier
transform infrared spectroscopy (FT-IR), and scanning electron microscopy (SEM). The
parameters which affect sorption efficiency of the lindane were: pH, sorption time (tsor), ion
strength (ion), rpm, and dose of sorbent. These variables were optimized by the experimental
design which include Plackett-Burman Design (PBD) and Central Composite Design (CCD).
After screening step by the PBD, the optimum conditions were obtained by the CCD where the
values were investigated in two levels. The design of experiment showed that the ion strength
and dose of sorbent were the most significant parameters, while the other variables do not have
such an effect on sorption efficiency. Accordingly, the optimum conditions to reach the maximum
recovery were: pH 8, 180 min sorption time, 300 rpm, 2 w/v % ion strength and 8 g/l dose of
sorbent. The results showed that the studied copolymer could be an efficient sorbent for trace
lindane in water with recoveries above 80 %.
PB  - Zvornik : Faculty of Technology
C3  - Book of Abstracts / VIII International Congress "Engineering, Environment and Materials in Process Industry", Jahorina, March 20-23, 2023
T1  - Optimization of lindane sorption from aqueous solution by macroporous copolymer using experimental design
SP  - 124
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7050
ER  - 

@conference{
author = "Tadić, Tamara and Bulatović, Sandra and Marković, Bojana and Nastasović, Aleksandra and Ilić, Mila and Vuković, Zorica and Onjia, Antonije",
year = "2023",
abstract = "In the present study, synthesized macroporous copolymer was used for the sorption of lindane
from an aqueous solution. This organochlorine pesticide is classified, according to US EPA, as
mutagenic and teratogenic. Residues of lindane can persist in the environment, migrate long
distances, and cause widespread contamination. In this way, lindane residues can reach the
human body through the food chain. The usage of this pesticide is banned in most countries.
However, lindane remains a serious toxicological problem at industrial sites where lindane was
used coupled with improper wastewater disposal and has led to serious contamination. In
addition, some countries still allow the production and use of lindane, and despite localized
restrictions, lindane contamination remains a global problem. Taking into account these
reasons, its removal from the environment is of a great significance. The obtained macroporous
copolymer was syntesized via suspension copolymerization and was characterized by Fourier
transform infrared spectroscopy (FT-IR), and scanning electron microscopy (SEM). The
parameters which affect sorption efficiency of the lindane were: pH, sorption time (tsor), ion
strength (ion), rpm, and dose of sorbent. These variables were optimized by the experimental
design which include Plackett-Burman Design (PBD) and Central Composite Design (CCD).
After screening step by the PBD, the optimum conditions were obtained by the CCD where the
values were investigated in two levels. The design of experiment showed that the ion strength
and dose of sorbent were the most significant parameters, while the other variables do not have
such an effect on sorption efficiency. Accordingly, the optimum conditions to reach the maximum
recovery were: pH 8, 180 min sorption time, 300 rpm, 2 w/v % ion strength and 8 g/l dose of
sorbent. The results showed that the studied copolymer could be an efficient sorbent for trace
lindane in water with recoveries above 80 %.",
publisher = "Zvornik : Faculty of Technology",
journal = "Book of Abstracts / VIII International Congress "Engineering, Environment and Materials in Process Industry", Jahorina, March 20-23, 2023",
title = "Optimization of lindane sorption from aqueous solution by macroporous copolymer using experimental design",
pages = "124",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7050"
}

Tadić, T., Bulatović, S., Marković, B., Nastasović, A., Ilić, M., Vuković, Z.,& Onjia, A.. (2023). Optimization of lindane sorption from aqueous solution by macroporous copolymer using experimental design. in Book of Abstracts / VIII International Congress "Engineering, Environment and Materials in Process Industry", Jahorina, March 20-23, 2023
Zvornik : Faculty of Technology., 124.
https://hdl.handle.net/21.15107/rcub_technorep_7050

Tadić T, Bulatović S, Marković B, Nastasović A, Ilić M, Vuković Z, Onjia A. Optimization of lindane sorption from aqueous solution by macroporous copolymer using experimental design. in Book of Abstracts / VIII International Congress "Engineering, Environment and Materials in Process Industry", Jahorina, March 20-23, 2023. 2023;:124.
https://hdl.handle.net/21.15107/rcub_technorep_7050 .

Tadić, Tamara, Bulatović, Sandra, Marković, Bojana, Nastasović, Aleksandra, Ilić, Mila, Vuković, Zorica, Onjia, Antonije, "Optimization of lindane sorption from aqueous solution by macroporous copolymer using experimental design" in Book of Abstracts / VIII International Congress "Engineering, Environment and Materials in Process Industry", Jahorina, March 20-23, 2023 (2023):124,
https://hdl.handle.net/21.15107/rcub_technorep_7050 .

TY  - JOUR
AU  - Suručić, Ljiljana
AU  - Janjić, Goran
AU  - Marković, Bojana
AU  - Tadić, Tamara
AU  - Vuković, Zorica
AU  - Nastasović, Aleksandra
AU  - Onjia, Antonije
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6357
AB  - A new magnetic amino-functionalized polymeric sorbent based on glycidyl methacrylate was synthesized and used in the separation of chromium Cr(VI) oxyanions sorption from aqueous solutions in a static batch system. The kinetic and isothermal parameters of the sorption process were determined. The experimental data were best fitted by a pseudo-second-order model with R2 = 0.994 and χ2 = 0.004. The sorption process of Cr(VI) removal by amino-functionalized sorbent was controlled by both intraparticle diffusion and liquid film diffusion. The equilibrium results showed that the sorption process is best described by the Freundlich model, followed closely by the Sips isotherm model, with a maximum sorption capacity of 64 mg/g. Quantum chemical modeling revealed that the sorption sites on the sorbent surface are fragments with diethylenetriamine and aminopropyl silane groups that coated the magnetic nanoparticles. The calculations showed that Cr(VI) oxyanions (Cr2O72−, CrO42− and HCrO4−) bind to both sorption sites, with diethylenetriamine centers slightly favored. The X-ray photoelectron spectroscopy (XPS) spectra demonstrate that the chromium bound to the sorbent in the form of Cr(III), indicating that the Cr(VI) can be converted on the surface of the sorbent to a less harmful form Cr(III) due to the sorbent’s chemical composition.
PB  - MDPI
T2  - Materials
T1  - Speciation of Hexavalent Chromium in Aqueous Solutions Using a Magnetic Silica-Coated Amino-Modified Glycidyl Methacrylate Polymer Nanocomposite
IS  - 6
SP  - 2233
VL  - 16
DO  - 10.3390/ma16062233
ER  - 

@article{
author = "Suručić, Ljiljana and Janjić, Goran and Marković, Bojana and Tadić, Tamara and Vuković, Zorica and Nastasović, Aleksandra and Onjia, Antonije",
year = "2023",
abstract = "A new magnetic amino-functionalized polymeric sorbent based on glycidyl methacrylate was synthesized and used in the separation of chromium Cr(VI) oxyanions sorption from aqueous solutions in a static batch system. The kinetic and isothermal parameters of the sorption process were determined. The experimental data were best fitted by a pseudo-second-order model with R2 = 0.994 and χ2 = 0.004. The sorption process of Cr(VI) removal by amino-functionalized sorbent was controlled by both intraparticle diffusion and liquid film diffusion. The equilibrium results showed that the sorption process is best described by the Freundlich model, followed closely by the Sips isotherm model, with a maximum sorption capacity of 64 mg/g. Quantum chemical modeling revealed that the sorption sites on the sorbent surface are fragments with diethylenetriamine and aminopropyl silane groups that coated the magnetic nanoparticles. The calculations showed that Cr(VI) oxyanions (Cr2O72−, CrO42− and HCrO4−) bind to both sorption sites, with diethylenetriamine centers slightly favored. The X-ray photoelectron spectroscopy (XPS) spectra demonstrate that the chromium bound to the sorbent in the form of Cr(III), indicating that the Cr(VI) can be converted on the surface of the sorbent to a less harmful form Cr(III) due to the sorbent’s chemical composition.",
publisher = "MDPI",
journal = "Materials",
title = "Speciation of Hexavalent Chromium in Aqueous Solutions Using a Magnetic Silica-Coated Amino-Modified Glycidyl Methacrylate Polymer Nanocomposite",
number = "6",
pages = "2233",
volume = "16",
doi = "10.3390/ma16062233"
}

Suručić, L., Janjić, G., Marković, B., Tadić, T., Vuković, Z., Nastasović, A.,& Onjia, A.. (2023). Speciation of Hexavalent Chromium in Aqueous Solutions Using a Magnetic Silica-Coated Amino-Modified Glycidyl Methacrylate Polymer Nanocomposite. in Materials
MDPI., 16(6), 2233.
https://doi.org/10.3390/ma16062233

Suručić L, Janjić G, Marković B, Tadić T, Vuković Z, Nastasović A, Onjia A. Speciation of Hexavalent Chromium in Aqueous Solutions Using a Magnetic Silica-Coated Amino-Modified Glycidyl Methacrylate Polymer Nanocomposite. in Materials. 2023;16(6):2233.
doi:10.3390/ma16062233 .

Suručić, Ljiljana, Janjić, Goran, Marković, Bojana, Tadić, Tamara, Vuković, Zorica, Nastasović, Aleksandra, Onjia, Antonije, "Speciation of Hexavalent Chromium in Aqueous Solutions Using a Magnetic Silica-Coated Amino-Modified Glycidyl Methacrylate Polymer Nanocomposite" in Materials, 16, no. 6 (2023):2233,
https://doi.org/10.3390/ma16062233 . .

TY  - JOUR
AU  - Stefanović, Ivan S.
AU  - Marković, Bojana M.
AU  - Nastasović, Aleksandra B.
AU  - Vuković, Zorica M.
AU  - Dapčević, Aleksandra
AU  - Pavlović, Vladimir B.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5174
AB  - The impact of the type and amounts of nanofiller on the features of the glycidyl methacrylate-co-ethylene glycol dimethacrylate (GMA-co-EGDMA)/organomodified montmorillonite (OMt) nanocomposites that were prepared by in situ radical suspension polymerization, was examined. Cloisite 30B and Cloisite 25A were used in this study as nanofillers, in amounts of 2 and 10 wt.%. The structure, morphology, thermal stability and porosity of the initial GMA-co-EGDMA copolymer and their nanocomposites were examined by ATR-FTIR analysis, wide angle X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), transmission electron microscopy (TEM), thermogravimetric analysis (TG) and mercury porosimetry. It has been established that both clay nanofillers were successfully incorporated into the structure of the initial copolymer, simultaneously on their surface and also on cross-sectional area. Prepared samples with 2 wt.% have predominantly exfoliated, while samples with 10 wt.% have some tactoids-aggregates structure of the OMt layers. Thermogravimetric analysis revealed that after ~ 30 % of degradation, all nanocomposites become more thermal stable than the initial copolymer. The obtained results indicate that porosity parameters can be easily modified with the addition of clay nanofillers and thus prepared nanocomposites adjusted to specific purposes. © 2022 Authors. Published by association for ETRAN Society.
T2  - Science of Sintering
T2  - Science of Sintering
T1  - Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites
EP  - 200
IS  - 2
SP  - 189
VL  - 54
DO  - 10.2298/SOS2202189S
ER  - 

@article{
author = "Stefanović, Ivan S. and Marković, Bojana M. and Nastasović, Aleksandra B. and Vuković, Zorica M. and Dapčević, Aleksandra and Pavlović, Vladimir B.",
year = "2022",
abstract = "The impact of the type and amounts of nanofiller on the features of the glycidyl methacrylate-co-ethylene glycol dimethacrylate (GMA-co-EGDMA)/organomodified montmorillonite (OMt) nanocomposites that were prepared by in situ radical suspension polymerization, was examined. Cloisite 30B and Cloisite 25A were used in this study as nanofillers, in amounts of 2 and 10 wt.%. The structure, morphology, thermal stability and porosity of the initial GMA-co-EGDMA copolymer and their nanocomposites were examined by ATR-FTIR analysis, wide angle X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), transmission electron microscopy (TEM), thermogravimetric analysis (TG) and mercury porosimetry. It has been established that both clay nanofillers were successfully incorporated into the structure of the initial copolymer, simultaneously on their surface and also on cross-sectional area. Prepared samples with 2 wt.% have predominantly exfoliated, while samples with 10 wt.% have some tactoids-aggregates structure of the OMt layers. Thermogravimetric analysis revealed that after ~ 30 % of degradation, all nanocomposites become more thermal stable than the initial copolymer. The obtained results indicate that porosity parameters can be easily modified with the addition of clay nanofillers and thus prepared nanocomposites adjusted to specific purposes. © 2022 Authors. Published by association for ETRAN Society.",
journal = "Science of Sintering, Science of Sintering",
title = "Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites",
pages = "200-189",
number = "2",
volume = "54",
doi = "10.2298/SOS2202189S"
}

Stefanović, I. S., Marković, B. M., Nastasović, A. B., Vuković, Z. M., Dapčević, A.,& Pavlović, V. B.. (2022). Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites. in Science of Sintering, 54(2), 189-200.
https://doi.org/10.2298/SOS2202189S

Stefanović IS, Marković BM, Nastasović AB, Vuković ZM, Dapčević A, Pavlović VB. Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites. in Science of Sintering. 2022;54(2):189-200.
doi:10.2298/SOS2202189S .

Stefanović, Ivan S., Marković, Bojana M., Nastasović, Aleksandra B., Vuković, Zorica M., Dapčević, Aleksandra, Pavlović, Vladimir B., "Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites" in Science of Sintering, 54, no. 2 (2022):189-200,
https://doi.org/10.2298/SOS2202189S . .

TY  - JOUR
AU  - Milovanović, Biljana
AU  - Marinović, Sanja
AU  - Vuković, Zorica
AU  - Milutinović-Nikolić, Aleksandra
AU  - Petrović, Rada
AU  - Banković, Predrag
AU  - Mudrinić, Tihana
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5127
AB  - In this paper, the influence of cobalt loading in pillared clay-supported cobalt materials on their electrocatalytic performance toward glucose oxidation was investigated. A series of aluminum-pillared montmorillonite clay (AP) materials with different cobalt loadings (x%CoAP, x = 1, 3, 5, and 10 wt%) was synthesized using the incipient wetness impregnation method. The X-ray powder diffraction (XRPD), inductively coupled plasma optical emission spectroscopy (ICP-OES), Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy coupled with energy dispersive X-ray spectrometry (FE-SEM/EDX), high resolution transmission electron microscopy (HR-TEM) coupled with EDX, X-ray photoelectron spectroscopy (XPS), and low temperature N2 physisorption, were employed for characterization of the materials. The incorporation of cobalt in porous structure of pillared montmorillonite was confirmed. The synthesized materials (x%CoAP) were used for modification of carbon paste (CP) electrode and tested in reaction of glucose electrooxidation. The electrochemical measurements were conducted using cyclic voltammetry and chronoamperometry in a 1 M NaOH solution, with or without glucose. The results showed that the increase of cobalt loading improved the electrode performance toward glucose. The highest current response and sensitivity were obtained for the CP-5%CoAP electrode. A lower electrode performance of CP-10%CoAP was correlated with the presence of higher quantities of Co3O4 (confirmed by XRPD and XPS) in the electrode material. The mechanism and kinetics of glucose electrooxidation was studied in more details for the best performing electrode (CP-5%CoAP). It was found that the process was diffusion-controlled and the diffusion coefficient was determined. The charge transfer coefficient and catalytic rate constant were calculated. The electrode exhibited satisfactory repeatability, reproducibility, stability, and selectivity. The obtained results showed that appropriate amount of cobalt loading in pillared clay led to the obtainment of non-enzymatic electrode materials suitable for sustainable and green glucose sensors.
PB  - Elsevier B.V.
T2  - Journal of Electroanalytical Chemistry
T1  - The influence of cobalt loading on electrocatalytic performance toward glucose oxidation of pillared montmorillonite-supported cobalt
SP  - 116332
VL  - 915
DO  - 10.1016/j.jelechem.2022.116332
ER  - 

@article{
author = "Milovanović, Biljana and Marinović, Sanja and Vuković, Zorica and Milutinović-Nikolić, Aleksandra and Petrović, Rada and Banković, Predrag and Mudrinić, Tihana",
year = "2022",
abstract = "In this paper, the influence of cobalt loading in pillared clay-supported cobalt materials on their electrocatalytic performance toward glucose oxidation was investigated. A series of aluminum-pillared montmorillonite clay (AP) materials with different cobalt loadings (x%CoAP, x = 1, 3, 5, and 10 wt%) was synthesized using the incipient wetness impregnation method. The X-ray powder diffraction (XRPD), inductively coupled plasma optical emission spectroscopy (ICP-OES), Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy coupled with energy dispersive X-ray spectrometry (FE-SEM/EDX), high resolution transmission electron microscopy (HR-TEM) coupled with EDX, X-ray photoelectron spectroscopy (XPS), and low temperature N2 physisorption, were employed for characterization of the materials. The incorporation of cobalt in porous structure of pillared montmorillonite was confirmed. The synthesized materials (x%CoAP) were used for modification of carbon paste (CP) electrode and tested in reaction of glucose electrooxidation. The electrochemical measurements were conducted using cyclic voltammetry and chronoamperometry in a 1 M NaOH solution, with or without glucose. The results showed that the increase of cobalt loading improved the electrode performance toward glucose. The highest current response and sensitivity were obtained for the CP-5%CoAP electrode. A lower electrode performance of CP-10%CoAP was correlated with the presence of higher quantities of Co3O4 (confirmed by XRPD and XPS) in the electrode material. The mechanism and kinetics of glucose electrooxidation was studied in more details for the best performing electrode (CP-5%CoAP). It was found that the process was diffusion-controlled and the diffusion coefficient was determined. The charge transfer coefficient and catalytic rate constant were calculated. The electrode exhibited satisfactory repeatability, reproducibility, stability, and selectivity. The obtained results showed that appropriate amount of cobalt loading in pillared clay led to the obtainment of non-enzymatic electrode materials suitable for sustainable and green glucose sensors.",
publisher = "Elsevier B.V.",
journal = "Journal of Electroanalytical Chemistry",
title = "The influence of cobalt loading on electrocatalytic performance toward glucose oxidation of pillared montmorillonite-supported cobalt",
pages = "116332",
volume = "915",
doi = "10.1016/j.jelechem.2022.116332"
}

Milovanović, B., Marinović, S., Vuković, Z., Milutinović-Nikolić, A., Petrović, R., Banković, P.,& Mudrinić, T.. (2022). The influence of cobalt loading on electrocatalytic performance toward glucose oxidation of pillared montmorillonite-supported cobalt. in Journal of Electroanalytical Chemistry
Elsevier B.V.., 915, 116332.
https://doi.org/10.1016/j.jelechem.2022.116332

Milovanović B, Marinović S, Vuković Z, Milutinović-Nikolić A, Petrović R, Banković P, Mudrinić T. The influence of cobalt loading on electrocatalytic performance toward glucose oxidation of pillared montmorillonite-supported cobalt. in Journal of Electroanalytical Chemistry. 2022;915:116332.
doi:10.1016/j.jelechem.2022.116332 .

Milovanović, Biljana, Marinović, Sanja, Vuković, Zorica, Milutinović-Nikolić, Aleksandra, Petrović, Rada, Banković, Predrag, Mudrinić, Tihana, "The influence of cobalt loading on electrocatalytic performance toward glucose oxidation of pillared montmorillonite-supported cobalt" in Journal of Electroanalytical Chemistry, 915 (2022):116332,
https://doi.org/10.1016/j.jelechem.2022.116332 . .

TY  - CONF
AU  - Tadić, Tamara
AU  - Marković, Bojana
AU  - Vuković, Zorica
AU  - Nastasović, Aleksandra
AU  - Suručić, Ljiljana
AU  - Sandić, Zvjezdana
AU  - Onjia, Antonije
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7123
AB  - This study is focused on the optimization of the synthesis of nanocomposite by suspension copolymerization in the presence of functionalized magnetic nanoparticles. The effect of parameters such as type and amount of stabilizing agent as well as the stirring rate of the reaction mixture on the shape and particle size obtained nanocomposite are studied. The magnetic nanocomposite with the best morphology properties was characterized using optical microscopy, FTIR, and mercury porosimetry.
PB  - Banja Luka : Academy of Sciences and Arts of the Republic of Srpska
C3  - Programme and book of abstracts / XIV International scientific conference Contemporary Materials 2021, September 9-10, Banja Luka = Program rada i Knjiga apstrakata / XIV Međunarodni naučni skup Savremeni materijali 2021, 9-10 septembar, Banja Luka, 2021
T1  - Optimization of synthesis of nanocomposite with functionalized magnetic nanoparticles
EP  - 48
SP  - 47
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7123
ER  - 

@conference{
author = "Tadić, Tamara and Marković, Bojana and Vuković, Zorica and Nastasović, Aleksandra and Suručić, Ljiljana and Sandić, Zvjezdana and Onjia, Antonije",
year = "2021",
abstract = "This study is focused on the optimization of the synthesis of nanocomposite by suspension copolymerization in the presence of functionalized magnetic nanoparticles. The effect of parameters such as type and amount of stabilizing agent as well as the stirring rate of the reaction mixture on the shape and particle size obtained nanocomposite are studied. The magnetic nanocomposite with the best morphology properties was characterized using optical microscopy, FTIR, and mercury porosimetry.",
publisher = "Banja Luka : Academy of Sciences and Arts of the Republic of Srpska",
journal = "Programme and book of abstracts / XIV International scientific conference Contemporary Materials 2021, September 9-10, Banja Luka = Program rada i Knjiga apstrakata / XIV Međunarodni naučni skup Savremeni materijali 2021, 9-10 septembar, Banja Luka, 2021",
title = "Optimization of synthesis of nanocomposite with functionalized magnetic nanoparticles",
pages = "48-47",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7123"
}

Tadić, T., Marković, B., Vuković, Z., Nastasović, A., Suručić, L., Sandić, Z.,& Onjia, A.. (2021). Optimization of synthesis of nanocomposite with functionalized magnetic nanoparticles. in Programme and book of abstracts / XIV International scientific conference Contemporary Materials 2021, September 9-10, Banja Luka = Program rada i Knjiga apstrakata / XIV Međunarodni naučni skup Savremeni materijali 2021, 9-10 septembar, Banja Luka, 2021
Banja Luka : Academy of Sciences and Arts of the Republic of Srpska., 47-48.
https://hdl.handle.net/21.15107/rcub_technorep_7123

Tadić T, Marković B, Vuković Z, Nastasović A, Suručić L, Sandić Z, Onjia A. Optimization of synthesis of nanocomposite with functionalized magnetic nanoparticles. in Programme and book of abstracts / XIV International scientific conference Contemporary Materials 2021, September 9-10, Banja Luka = Program rada i Knjiga apstrakata / XIV Međunarodni naučni skup Savremeni materijali 2021, 9-10 septembar, Banja Luka, 2021. 2021;:47-48.
https://hdl.handle.net/21.15107/rcub_technorep_7123 .

Tadić, Tamara, Marković, Bojana, Vuković, Zorica, Nastasović, Aleksandra, Suručić, Ljiljana, Sandić, Zvjezdana, Onjia, Antonije, "Optimization of synthesis of nanocomposite with functionalized magnetic nanoparticles" in Programme and book of abstracts / XIV International scientific conference Contemporary Materials 2021, September 9-10, Banja Luka = Program rada i Knjiga apstrakata / XIV Međunarodni naučni skup Savremeni materijali 2021, 9-10 septembar, Banja Luka, 2021 (2021):47-48,
https://hdl.handle.net/21.15107/rcub_technorep_7123 .

TY  - JOUR
AU  - Marković, Bojana M.
AU  - Spasojević, Vojislav
AU  - Dapčević, Aleksandra
AU  - Vuković, Zorica M.
AU  - Pavlović, Vladimir B.
AU  - Ranđelović, Danijela
AU  - Nastasović, Aleksandra
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4179
AB  - Magnetic and non-magnetic macroporous crosslinked copolymers of glycidyl methacrylate and trimethylolpropane trimethacrylate were prepared by suspension copolymerization and functionalized with diethylenetriamine. The samples were characterized by mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy analysis (FTIR-ATR), thermogravimetric analysis (TGA), X-ray diffractometry (XRD), atomic force microscopy (AFM), transmission electron microscopy (TEM) and SQUID magnetometry. The FTIR-ATR analysis of synthesized magnetic nanocomposites confirmed the presence of magnetite and successful aminofunctionalization. Non-functionalized and amino-functionalized nanocomposites exhibited superparamagnetic behavior at 300 K, with a saturation magnetization of 5.0 emu/g and 2.9 emu/g, respectively. TEM analysis of the magnetic nanocomposite has shown that magnetic nanoparticles were homogeneously dispersed in the polymer matrix. It was demonstrated that incorporation of magnetic nanoparticles enhanced the thermal stability of the magnetic nanocomposite in comparison to the initial non-magnetic macroporous copolymer.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Characterization of glycidyl methacrylate based magnetic nanocomposites
EP  - 35
IS  - 1
SP  - 25
VL  - 73
DO  - 10.2298/HEMIND181113006M
ER  - 

@article{
author = "Marković, Bojana M. and Spasojević, Vojislav and Dapčević, Aleksandra and Vuković, Zorica M. and Pavlović, Vladimir B. and Ranđelović, Danijela and Nastasović, Aleksandra",
year = "2019",
abstract = "Magnetic and non-magnetic macroporous crosslinked copolymers of glycidyl methacrylate and trimethylolpropane trimethacrylate were prepared by suspension copolymerization and functionalized with diethylenetriamine. The samples were characterized by mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy analysis (FTIR-ATR), thermogravimetric analysis (TGA), X-ray diffractometry (XRD), atomic force microscopy (AFM), transmission electron microscopy (TEM) and SQUID magnetometry. The FTIR-ATR analysis of synthesized magnetic nanocomposites confirmed the presence of magnetite and successful aminofunctionalization. Non-functionalized and amino-functionalized nanocomposites exhibited superparamagnetic behavior at 300 K, with a saturation magnetization of 5.0 emu/g and 2.9 emu/g, respectively. TEM analysis of the magnetic nanocomposite has shown that magnetic nanoparticles were homogeneously dispersed in the polymer matrix. It was demonstrated that incorporation of magnetic nanoparticles enhanced the thermal stability of the magnetic nanocomposite in comparison to the initial non-magnetic macroporous copolymer.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Characterization of glycidyl methacrylate based magnetic nanocomposites",
pages = "35-25",
number = "1",
volume = "73",
doi = "10.2298/HEMIND181113006M"
}

Marković, B. M., Spasojević, V., Dapčević, A., Vuković, Z. M., Pavlović, V. B., Ranđelović, D.,& Nastasović, A.. (2019). Characterization of glycidyl methacrylate based magnetic nanocomposites. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 73(1), 25-35.
https://doi.org/10.2298/HEMIND181113006M

Marković BM, Spasojević V, Dapčević A, Vuković ZM, Pavlović VB, Ranđelović D, Nastasović A. Characterization of glycidyl methacrylate based magnetic nanocomposites. in Hemijska industrija. 2019;73(1):25-35.
doi:10.2298/HEMIND181113006M .

Marković, Bojana M., Spasojević, Vojislav, Dapčević, Aleksandra, Vuković, Zorica M., Pavlović, Vladimir B., Ranđelović, Danijela, Nastasović, Aleksandra, "Characterization of glycidyl methacrylate based magnetic nanocomposites" in Hemijska industrija, 73, no. 1 (2019):25-35,
https://doi.org/10.2298/HEMIND181113006M . .

TY  - JOUR
AU  - Ekmeščić, Bojana
AU  - Maksin, Danijela
AU  - Marković, Jelena P.
AU  - Vuković, Zorica M.
AU  - Hercigonja, Radmila
AU  - Nastasović, Aleksandra
AU  - Onjia, Antonije
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4104
AB  - The presented study describes macroporous crosslinked poly(glycidyl methacrylateco-ethylene glycol dimethacrylate) [PGME] functionalized with diethylenetriamine [PGME-deta] as a potential recovery agent for Mo(VI) oxyanions from aqueous solutions. Sorption studies were carried out by varying experimental conditions (pH, time, concentration, temperature). Kinetics of Mo(VI) sorption was investigated in batch (static) experiments, in the temperature range 298-343 K. Sorption dynamics data were fitted to seven chemical-reaction and particle-diffusion models. The kinetics studies showed that Mo(VI) sorption adhered to the pseudo-second-order model under all investigated operating conditions. The sorption kinetics was determined to be governed by both the intraparticle diffusion and the external film diffusion to a lesser extent. The temperature rise promotes the molybdate species removal, with the maximum experimental uptake capacity of 4.02 mmol g(-1) at 298 K, at the selected pH which is consistent with the predominance range of hydrolized polynuclear Mo(VI) forms and optimum electrostatic attraction.
PB  - Elsevier, Amsterdam
T2  - Arabian Journal of Chemistry
T1  - Recovery of molybdenum oxyanions using macroporous copolymer grafted with diethylenetriamine
EP  - 3638
IS  - 8
SP  - 3628
VL  - 12
DO  - 10.1016/j.arabjc.2015.11.010
ER  - 

@article{
author = "Ekmeščić, Bojana and Maksin, Danijela and Marković, Jelena P. and Vuković, Zorica M. and Hercigonja, Radmila and Nastasović, Aleksandra and Onjia, Antonije",
year = "2019",
abstract = "The presented study describes macroporous crosslinked poly(glycidyl methacrylateco-ethylene glycol dimethacrylate) [PGME] functionalized with diethylenetriamine [PGME-deta] as a potential recovery agent for Mo(VI) oxyanions from aqueous solutions. Sorption studies were carried out by varying experimental conditions (pH, time, concentration, temperature). Kinetics of Mo(VI) sorption was investigated in batch (static) experiments, in the temperature range 298-343 K. Sorption dynamics data were fitted to seven chemical-reaction and particle-diffusion models. The kinetics studies showed that Mo(VI) sorption adhered to the pseudo-second-order model under all investigated operating conditions. The sorption kinetics was determined to be governed by both the intraparticle diffusion and the external film diffusion to a lesser extent. The temperature rise promotes the molybdate species removal, with the maximum experimental uptake capacity of 4.02 mmol g(-1) at 298 K, at the selected pH which is consistent with the predominance range of hydrolized polynuclear Mo(VI) forms and optimum electrostatic attraction.",
publisher = "Elsevier, Amsterdam",
journal = "Arabian Journal of Chemistry",
title = "Recovery of molybdenum oxyanions using macroporous copolymer grafted with diethylenetriamine",
pages = "3638-3628",
number = "8",
volume = "12",
doi = "10.1016/j.arabjc.2015.11.010"
}

Ekmeščić, B., Maksin, D., Marković, J. P., Vuković, Z. M., Hercigonja, R., Nastasović, A.,& Onjia, A.. (2019). Recovery of molybdenum oxyanions using macroporous copolymer grafted with diethylenetriamine. in Arabian Journal of Chemistry
Elsevier, Amsterdam., 12(8), 3628-3638.
https://doi.org/10.1016/j.arabjc.2015.11.010

Ekmeščić B, Maksin D, Marković JP, Vuković ZM, Hercigonja R, Nastasović A, Onjia A. Recovery of molybdenum oxyanions using macroporous copolymer grafted with diethylenetriamine. in Arabian Journal of Chemistry. 2019;12(8):3628-3638.
doi:10.1016/j.arabjc.2015.11.010 .

Ekmeščić, Bojana, Maksin, Danijela, Marković, Jelena P., Vuković, Zorica M., Hercigonja, Radmila, Nastasović, Aleksandra, Onjia, Antonije, "Recovery of molybdenum oxyanions using macroporous copolymer grafted with diethylenetriamine" in Arabian Journal of Chemistry, 12, no. 8 (2019):3628-3638,
https://doi.org/10.1016/j.arabjc.2015.11.010 . .

TY  - JOUR
AU  - Marković, Bojana M.
AU  - Vuković, Zorica M.
AU  - Spasojević, Vojislav
AU  - Kusigerski, Vladan
AU  - Pavlović, Vladimir B.
AU  - Onjia, Antonije
AU  - Nastasović, Aleksandra
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3752
AB  - Magnetic macroporous crosslinked copolymer glycidyl methacrylate (GMA) and ethylene glycol dimethacrylate (EGDMA) samples with different magnetite content were prepared by suspension copolymerization and functionalized with diethylene triamine. Samples were characterized by elemental analysis, mercury porosimetry, Fourier transform infrared spectroscopy (FTIR) analysis, scanning electron microscopy with energy-dispersive X-ray spectroscopy, transmission electron microscopy, SQUID magnetometry and X-ray photoelectron spectroscopy (XPS). The selected amino-functionalized sample was tested as a potential sorbent for the Mo(VI) and Re(VII) oxyanions from aqueous solutions. The influence of pH, ionic strength and possible interfering of cations and anions was investigated. Equilibrium data were analyzed with Langmuir, Freundlich and Tempkin adsorption isotherm models. Sorption studies were carried out in a batch competitive experiments, in the pH range 1-8, at 298 K. Obtained results indicate that 92% of Re(VII) and 98% of Mo(VI) were sorbed at pH 2.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - Selective magnetic GMA based potential sorbents for molybdenum and rhenium sorption
EP  - 50
SP  - 38
VL  - 705
DO  - 10.1016/j.jallcom.2017.02.108
ER  - 

@article{
author = "Marković, Bojana M. and Vuković, Zorica M. and Spasojević, Vojislav and Kusigerski, Vladan and Pavlović, Vladimir B. and Onjia, Antonije and Nastasović, Aleksandra",
year = "2017",
abstract = "Magnetic macroporous crosslinked copolymer glycidyl methacrylate (GMA) and ethylene glycol dimethacrylate (EGDMA) samples with different magnetite content were prepared by suspension copolymerization and functionalized with diethylene triamine. Samples were characterized by elemental analysis, mercury porosimetry, Fourier transform infrared spectroscopy (FTIR) analysis, scanning electron microscopy with energy-dispersive X-ray spectroscopy, transmission electron microscopy, SQUID magnetometry and X-ray photoelectron spectroscopy (XPS). The selected amino-functionalized sample was tested as a potential sorbent for the Mo(VI) and Re(VII) oxyanions from aqueous solutions. The influence of pH, ionic strength and possible interfering of cations and anions was investigated. Equilibrium data were analyzed with Langmuir, Freundlich and Tempkin adsorption isotherm models. Sorption studies were carried out in a batch competitive experiments, in the pH range 1-8, at 298 K. Obtained results indicate that 92% of Re(VII) and 98% of Mo(VI) were sorbed at pH 2.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "Selective magnetic GMA based potential sorbents for molybdenum and rhenium sorption",
pages = "50-38",
volume = "705",
doi = "10.1016/j.jallcom.2017.02.108"
}

Marković, B. M., Vuković, Z. M., Spasojević, V., Kusigerski, V., Pavlović, V. B., Onjia, A.,& Nastasović, A.. (2017). Selective magnetic GMA based potential sorbents for molybdenum and rhenium sorption. in Journal of Alloys and Compounds
Elsevier Science Sa, Lausanne., 705, 38-50.
https://doi.org/10.1016/j.jallcom.2017.02.108

Marković BM, Vuković ZM, Spasojević V, Kusigerski V, Pavlović VB, Onjia A, Nastasović A. Selective magnetic GMA based potential sorbents for molybdenum and rhenium sorption. in Journal of Alloys and Compounds. 2017;705:38-50.
doi:10.1016/j.jallcom.2017.02.108 .

Marković, Bojana M., Vuković, Zorica M., Spasojević, Vojislav, Kusigerski, Vladan, Pavlović, Vladimir B., Onjia, Antonije, Nastasović, Aleksandra, "Selective magnetic GMA based potential sorbents for molybdenum and rhenium sorption" in Journal of Alloys and Compounds, 705 (2017):38-50,
https://doi.org/10.1016/j.jallcom.2017.02.108 . .

TY  - JOUR
AU  - Marinović, Sanja
AU  - Milutinović Nikolić, Aleksandra
AU  - Nastasović, Aleksandra
AU  - Žunić, Marija
AU  - Vuković, Zorica
AU  - Antonovic, Dusan G
AU  - Jovanović, Dušan M.
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5796
AB  - Macroporous nanocomposite of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and acid modified bentonite was prepared by radical suspension copolymerization. Nanocomposite was functionalized with diethylenetriamine (DETA), by ring-opening reaction of the pendant epoxy groups. Functionalization was performed in order to enable phenol derivatives sorption. This new, not sufficiently investigated material, with developed porous structure was denoted CP-S-A-DETA. In this study, the influence of temperature on 4-nitrophenol (4NP) sorption on CP-S-A-DETA was investigated. The chemisorption was estimated as dominant process since activation energy of sorption of 4NP of 54.8 kJ mol(-1) was obtained. After determining the optimal sorption conditions for 4NP, the sorption of 2-nitrophenol (2NP) and 2-chloro-4-nitrophenol (2Cl4NP) on CP-S-A-DETA was investigated with respect to pH, initial concentration and contact time. The 2NP sorption was seldom tested, while according to our knowledge, the 2Cl4NP sorption was not investigated. The isotherm data were best fitted with Langmuir model, while the sorption dynamics obeyed the pseudo-second-order kinetic model for all derivatives.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Sorption of different phenol derivatives on a functionalized macroporous nanocomposite of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and acid modified bentonite
EP  - 1261
IS  - 10
SP  - 1249
VL  - 79
DO  - 10.2298/JSC140206043M
ER  - 

@article{
author = "Marinović, Sanja and Milutinović Nikolić, Aleksandra and Nastasović, Aleksandra and Žunić, Marija and Vuković, Zorica and Antonovic, Dusan G and Jovanović, Dušan M.",
year = "2014",
abstract = "Macroporous nanocomposite of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and acid modified bentonite was prepared by radical suspension copolymerization. Nanocomposite was functionalized with diethylenetriamine (DETA), by ring-opening reaction of the pendant epoxy groups. Functionalization was performed in order to enable phenol derivatives sorption. This new, not sufficiently investigated material, with developed porous structure was denoted CP-S-A-DETA. In this study, the influence of temperature on 4-nitrophenol (4NP) sorption on CP-S-A-DETA was investigated. The chemisorption was estimated as dominant process since activation energy of sorption of 4NP of 54.8 kJ mol(-1) was obtained. After determining the optimal sorption conditions for 4NP, the sorption of 2-nitrophenol (2NP) and 2-chloro-4-nitrophenol (2Cl4NP) on CP-S-A-DETA was investigated with respect to pH, initial concentration and contact time. The 2NP sorption was seldom tested, while according to our knowledge, the 2Cl4NP sorption was not investigated. The isotherm data were best fitted with Langmuir model, while the sorption dynamics obeyed the pseudo-second-order kinetic model for all derivatives.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Sorption of different phenol derivatives on a functionalized macroporous nanocomposite of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and acid modified bentonite",
pages = "1261-1249",
number = "10",
volume = "79",
doi = "10.2298/JSC140206043M"
}

Marinović, S., Milutinović Nikolić, A., Nastasović, A., Žunić, M., Vuković, Z., Antonovic, D. G.,& Jovanović, D. M.. (2014). Sorption of different phenol derivatives on a functionalized macroporous nanocomposite of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and acid modified bentonite. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 79(10), 1249-1261.
https://doi.org/10.2298/JSC140206043M

Marinović S, Milutinović Nikolić A, Nastasović A, Žunić M, Vuković Z, Antonovic DG, Jovanović DM. Sorption of different phenol derivatives on a functionalized macroporous nanocomposite of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and acid modified bentonite. in Journal of the Serbian Chemical Society. 2014;79(10):1249-1261.
doi:10.2298/JSC140206043M .

Marinović, Sanja, Milutinović Nikolić, Aleksandra, Nastasović, Aleksandra, Žunić, Marija, Vuković, Zorica, Antonovic, Dusan G, Jovanović, Dušan M., "Sorption of different phenol derivatives on a functionalized macroporous nanocomposite of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and acid modified bentonite" in Journal of the Serbian Chemical Society, 79, no. 10 (2014):1249-1261,
https://doi.org/10.2298/JSC140206043M . .

TY  - JOUR
AU  - Vuković, Zorica M.
AU  - Spasojević, Pavle
AU  - Plazinić, M.
AU  - Zivanić, J.
AU  - Spasojević, M.
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2567
AB  - Ni-85,Ni-8 Fe-10,Fe-6 W-1,W-4 Cu-2,Cu-2 alloy powder consisting of an amorphous matrix and nanocrystals of an FCC solid solution of Fe, W and Cu in nickel was produced by electrodeposition. Heating the pressed powder sample over the temperature range of 20 to 600 degrees C permitted structural changes to take place in the alloy, causing changes in its electrical resistivity and magnetic permeability. The alloy exhibits structural stability up to 150 degrees C. In the temperature interval 150-360 degrees C, the alloy undergoes intensive structural relaxation resulting in an increase in electrical conductivity and magnetic permeability. Less intensive structural relaxation occurs at temperatures between 360 degrees C and 460 degrees C. In this interval, under heat treatment, magnetic domain arrangement decreases and, hence, the interaction between magnons and conduction electrons is reduced, leading to a decrease in the temperature coefficient of electrical resistivity (TCER). Amorphous matrix crystallization and FCC crystal growth take place in the temperature interval 460-520 degrees C, causing a decline in electrical resistivity and magnetic permeability.
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Journal of Optoelectronics and Advanced Materials
T1  - The effect of annealing temperatures on magnetic and electric properties of electrodeposited Ni85,3Fe10,6W1,4Cu2,2 alloy
EP  - 989
IS  - 7-8
SP  - 985
VL  - 16
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2567
ER  - 

@article{
author = "Vuković, Zorica M. and Spasojević, Pavle and Plazinić, M. and Zivanić, J. and Spasojević, M.",
year = "2014",
abstract = "Ni-85,Ni-8 Fe-10,Fe-6 W-1,W-4 Cu-2,Cu-2 alloy powder consisting of an amorphous matrix and nanocrystals of an FCC solid solution of Fe, W and Cu in nickel was produced by electrodeposition. Heating the pressed powder sample over the temperature range of 20 to 600 degrees C permitted structural changes to take place in the alloy, causing changes in its electrical resistivity and magnetic permeability. The alloy exhibits structural stability up to 150 degrees C. In the temperature interval 150-360 degrees C, the alloy undergoes intensive structural relaxation resulting in an increase in electrical conductivity and magnetic permeability. Less intensive structural relaxation occurs at temperatures between 360 degrees C and 460 degrees C. In this interval, under heat treatment, magnetic domain arrangement decreases and, hence, the interaction between magnons and conduction electrons is reduced, leading to a decrease in the temperature coefficient of electrical resistivity (TCER). Amorphous matrix crystallization and FCC crystal growth take place in the temperature interval 460-520 degrees C, causing a decline in electrical resistivity and magnetic permeability.",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Journal of Optoelectronics and Advanced Materials",
title = "The effect of annealing temperatures on magnetic and electric properties of electrodeposited Ni85,3Fe10,6W1,4Cu2,2 alloy",
pages = "989-985",
number = "7-8",
volume = "16",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2567"
}

Vuković, Z. M., Spasojević, P., Plazinić, M., Zivanić, J.,& Spasojević, M.. (2014). The effect of annealing temperatures on magnetic and electric properties of electrodeposited Ni85,3Fe10,6W1,4Cu2,2 alloy. in Journal of Optoelectronics and Advanced Materials
Natl Inst Optoelectronics, Bucharest-Magurele., 16(7-8), 985-989.
https://hdl.handle.net/21.15107/rcub_technorep_2567

Vuković ZM, Spasojević P, Plazinić M, Zivanić J, Spasojević M. The effect of annealing temperatures on magnetic and electric properties of electrodeposited Ni85,3Fe10,6W1,4Cu2,2 alloy. in Journal of Optoelectronics and Advanced Materials. 2014;16(7-8):985-989.
https://hdl.handle.net/21.15107/rcub_technorep_2567 .

Vuković, Zorica M., Spasojević, Pavle, Plazinić, M., Zivanić, J., Spasojević, M., "The effect of annealing temperatures on magnetic and electric properties of electrodeposited Ni85,3Fe10,6W1,4Cu2,2 alloy" in Journal of Optoelectronics and Advanced Materials, 16, no. 7-8 (2014):985-989,
https://hdl.handle.net/21.15107/rcub_technorep_2567 .

TY  - JOUR
AU  - Nastasović, Aleksandra
AU  - Jovanović, Slobodan M.
AU  - Onjia, Antonije
AU  - Sandić, Zvjezdana P.
AU  - Malović, Ljiljana T.
AU  - Jakovljević, Dragica
AU  - Vuković, Zorica M.
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/979
AB  - Macroporous crosslinked poly(GMA-co-EGDMA) was synthesized by the suspension copolymerisation and functionalized by the ring-opening reaction of the pendant epoxy groups with ethylene diamine. The porosity parameters (specific pore volume, specific surface area, and pore diameter, which corresponds to half of the pore volume) for the initial and amino-functionalized copolymer samples were calculated from the cumulative pore volume distribution curves obtained by mercury porosimetry. The selectivity, sorption capacity and sorption rate of amino-functionalized poly(GMA-co-EGDMA)-en were determined under static conditions. The sorption of Cu(ll) and Ag(l) ions on poly(GMA-co-EGDMA)-en was very rapid (ti/2 value about 1 min). Slower sorption was observed for Au(lll) ions with a ti/2 value of 6.5 minutes. The different rates of Au(lll), Cu(ll) and Ag(l) sorption could be applied for gold, copper and silver ion separation from mixed solutions. The sorption of Ni(ll) and Cu(ll) ions from galvanic solution under competitive conditions was also fast, with ti/2 values of 0.5 and 2 min, respectively. However, Zn(ll) sorption was considerably slower (a ti/2 of 10 min). Similar results were obtained for galvanic solution under dynamic conditions, i.e., the metal sorption capacities of poly(GMA-co-EGDMA)-en decreased in the order: Ni(ll)  gt  Cu(ll)  gt  gt  Zn(ll). The reusability of amino-functionalized poly(GMA-co-EGDMA) for Cu(ll) sorption was tested in four sorption/desorption cycles. Regeneration experiments were performed with 0.1 and 1 M H2SO4 showed a Cu(ll) capacity loss of 50 % in the first sorption/desorption cycle. The sorption capacity increased when additional neutralization with 0.1 and 1 M NaOH was performed after each sorption/desorption cycle.
AB  - Umreženi makroporozni kopolimer glicidilmetakrilata i etilenglikoldimetakrilata, poli(GMA-co-EGDMA), sintetizovan je suspenzionom kopolimerizacijom a zatim funkcionalizovan reakcijom bočnih epoksidnih grupa sa etilendiaminom. Pri statičkim uslovima je ispitana selektivnost, kapacitet i brzina sorpcije teških i plemenitih metala iz vodenih rastvora pomoću aminofunkcionalizovanog poli(GMA-co-EGDMA)-en. Sorpcija Ni(ll), Cu(ll) i Zn(ll) jona ispitana je pri dinamičkim uslovima, propuštanjem rastvora za galvanizaciju kroz kolonu napunjenu makroporoznim poli(GMA-co-EGDMA)-en. Regeneraciona moć kopolimera i sposobnost njegove ponovne upotrebe procenjena je na osnovu eksperimenata četiri uzastopna ciklusa sorpcije i desorpcije jona metala.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - The application of macroporous copolymers in the sorption of heavy and precious metals from aqueous solutions
T1  - Primena makroporoznih kopolimera u sorpciji teških i plemenitih metala iz vodenih rastvora
EP  - 310
IS  - 11-12
SP  - 306
VL  - 60
DO  - 10.2298/HEMIND0612306N
ER  - 

@article{
author = "Nastasović, Aleksandra and Jovanović, Slobodan M. and Onjia, Antonije and Sandić, Zvjezdana P. and Malović, Ljiljana T. and Jakovljević, Dragica and Vuković, Zorica M.",
year = "2006",
abstract = "Macroporous crosslinked poly(GMA-co-EGDMA) was synthesized by the suspension copolymerisation and functionalized by the ring-opening reaction of the pendant epoxy groups with ethylene diamine. The porosity parameters (specific pore volume, specific surface area, and pore diameter, which corresponds to half of the pore volume) for the initial and amino-functionalized copolymer samples were calculated from the cumulative pore volume distribution curves obtained by mercury porosimetry. The selectivity, sorption capacity and sorption rate of amino-functionalized poly(GMA-co-EGDMA)-en were determined under static conditions. The sorption of Cu(ll) and Ag(l) ions on poly(GMA-co-EGDMA)-en was very rapid (ti/2 value about 1 min). Slower sorption was observed for Au(lll) ions with a ti/2 value of 6.5 minutes. The different rates of Au(lll), Cu(ll) and Ag(l) sorption could be applied for gold, copper and silver ion separation from mixed solutions. The sorption of Ni(ll) and Cu(ll) ions from galvanic solution under competitive conditions was also fast, with ti/2 values of 0.5 and 2 min, respectively. However, Zn(ll) sorption was considerably slower (a ti/2 of 10 min). Similar results were obtained for galvanic solution under dynamic conditions, i.e., the metal sorption capacities of poly(GMA-co-EGDMA)-en decreased in the order: Ni(ll)  gt  Cu(ll)  gt  gt  Zn(ll). The reusability of amino-functionalized poly(GMA-co-EGDMA) for Cu(ll) sorption was tested in four sorption/desorption cycles. Regeneration experiments were performed with 0.1 and 1 M H2SO4 showed a Cu(ll) capacity loss of 50 % in the first sorption/desorption cycle. The sorption capacity increased when additional neutralization with 0.1 and 1 M NaOH was performed after each sorption/desorption cycle., Umreženi makroporozni kopolimer glicidilmetakrilata i etilenglikoldimetakrilata, poli(GMA-co-EGDMA), sintetizovan je suspenzionom kopolimerizacijom a zatim funkcionalizovan reakcijom bočnih epoksidnih grupa sa etilendiaminom. Pri statičkim uslovima je ispitana selektivnost, kapacitet i brzina sorpcije teških i plemenitih metala iz vodenih rastvora pomoću aminofunkcionalizovanog poli(GMA-co-EGDMA)-en. Sorpcija Ni(ll), Cu(ll) i Zn(ll) jona ispitana je pri dinamičkim uslovima, propuštanjem rastvora za galvanizaciju kroz kolonu napunjenu makroporoznim poli(GMA-co-EGDMA)-en. Regeneraciona moć kopolimera i sposobnost njegove ponovne upotrebe procenjena je na osnovu eksperimenata četiri uzastopna ciklusa sorpcije i desorpcije jona metala.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "The application of macroporous copolymers in the sorption of heavy and precious metals from aqueous solutions, Primena makroporoznih kopolimera u sorpciji teških i plemenitih metala iz vodenih rastvora",
pages = "310-306",
number = "11-12",
volume = "60",
doi = "10.2298/HEMIND0612306N"
}

Nastasović, A., Jovanović, S. M., Onjia, A., Sandić, Z. P., Malović, L. T., Jakovljević, D.,& Vuković, Z. M.. (2006). The application of macroporous copolymers in the sorption of heavy and precious metals from aqueous solutions. in Hemijska industrija
Association of Chemical Engineers of Serbia., 60(11-12), 306-310.
https://doi.org/10.2298/HEMIND0612306N

Nastasović A, Jovanović SM, Onjia A, Sandić ZP, Malović LT, Jakovljević D, Vuković ZM. The application of macroporous copolymers in the sorption of heavy and precious metals from aqueous solutions. in Hemijska industrija. 2006;60(11-12):306-310.
doi:10.2298/HEMIND0612306N .

Nastasović, Aleksandra, Jovanović, Slobodan M., Onjia, Antonije, Sandić, Zvjezdana P., Malović, Ljiljana T., Jakovljević, Dragica, Vuković, Zorica M., "The application of macroporous copolymers in the sorption of heavy and precious metals from aqueous solutions" in Hemijska industrija, 60, no. 11-12 (2006):306-310,
https://doi.org/10.2298/HEMIND0612306N . .

TY  - JOUR
AU  - Nastasović, Aleksandra
AU  - Onjia, Antonije
AU  - Milonjić, Slobodan K.
AU  - Vuković, Zorica M.
AU  - Jovanović, SM
PY  - 2005
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/831
AB  - Inverse gas chromatography under finite surface coverage conditions (IGC-FC) was used for the investigation of sorption of hexane, benzene, chloroform and tetrahydrofuran on macroporous crosslinked poly[(glycidyl methacrylate)-co-(ethylene glycol dimethacrylate)], poly(GMA-co-EGDMA), and copolymer modified with ethylene diamine, EDA, poly(GMA-co-EGDMA)-en, in the temperature range 333-363 K. Two poly(GMA-co-EGDMA) samples with different porosity parameters were synthesized by suspension copolymerization and modified using a ring-opening reaction of the pendant epoxy groups with EDA. The specific surface areas of the initial and modified copolymer samples were determined by the BET method from low temperature nitro- gen adsorption isotherms (77 K). The adsorption isotherms determined from chromatographic peaks of adsorbates were analyzed using the BET theoretical model and used for estimation of the surface area, isosteric heat of adsorption and the adsorption energy distribution on the surface of the initial and modified copolymer samples. It was observed that the adsorbate nature and the properties of the solid surface of the initial and modified copolymer governed the uptake of adsorbate by the copolymer. The deviations observed for the Sa values obtained by the BET method from the low temperature nitrogen adsorption isotherms and hexane was attributed not only to the difference in molecule size, but also to the specific polymer-adsorbate interactions. The isosteric heat of adsorption approached a constant value with increasing adsorbate loading. A large variation in the shapes of the q(st)-alpha curves resulted from strong acid-base interactions, as well as dissolution phenomena. Of the four studied adsorbates, chloroform was shown to have the greatest affinity towards the surface of the investigated polymer samples.
PB  - Wiley-VCH Verlag Gmbh, Weinheim
T2  - Macromolecular Materials and Engineering
T1  - Characterization of glycidyl methacrylate based copolymers by inverse gas chromatography under finite surface coverage
EP  - 890
IS  - 9
SP  - 884
VL  - 290
DO  - 10.1002/mame.200500137
ER  - 

@article{
author = "Nastasović, Aleksandra and Onjia, Antonije and Milonjić, Slobodan K. and Vuković, Zorica M. and Jovanović, SM",
year = "2005",
abstract = "Inverse gas chromatography under finite surface coverage conditions (IGC-FC) was used for the investigation of sorption of hexane, benzene, chloroform and tetrahydrofuran on macroporous crosslinked poly[(glycidyl methacrylate)-co-(ethylene glycol dimethacrylate)], poly(GMA-co-EGDMA), and copolymer modified with ethylene diamine, EDA, poly(GMA-co-EGDMA)-en, in the temperature range 333-363 K. Two poly(GMA-co-EGDMA) samples with different porosity parameters were synthesized by suspension copolymerization and modified using a ring-opening reaction of the pendant epoxy groups with EDA. The specific surface areas of the initial and modified copolymer samples were determined by the BET method from low temperature nitro- gen adsorption isotherms (77 K). The adsorption isotherms determined from chromatographic peaks of adsorbates were analyzed using the BET theoretical model and used for estimation of the surface area, isosteric heat of adsorption and the adsorption energy distribution on the surface of the initial and modified copolymer samples. It was observed that the adsorbate nature and the properties of the solid surface of the initial and modified copolymer governed the uptake of adsorbate by the copolymer. The deviations observed for the Sa values obtained by the BET method from the low temperature nitrogen adsorption isotherms and hexane was attributed not only to the difference in molecule size, but also to the specific polymer-adsorbate interactions. The isosteric heat of adsorption approached a constant value with increasing adsorbate loading. A large variation in the shapes of the q(st)-alpha curves resulted from strong acid-base interactions, as well as dissolution phenomena. Of the four studied adsorbates, chloroform was shown to have the greatest affinity towards the surface of the investigated polymer samples.",
publisher = "Wiley-VCH Verlag Gmbh, Weinheim",
journal = "Macromolecular Materials and Engineering",
title = "Characterization of glycidyl methacrylate based copolymers by inverse gas chromatography under finite surface coverage",
pages = "890-884",
number = "9",
volume = "290",
doi = "10.1002/mame.200500137"
}

Nastasović, A., Onjia, A., Milonjić, S. K., Vuković, Z. M.,& Jovanović, S.. (2005). Characterization of glycidyl methacrylate based copolymers by inverse gas chromatography under finite surface coverage. in Macromolecular Materials and Engineering
Wiley-VCH Verlag Gmbh, Weinheim., 290(9), 884-890.
https://doi.org/10.1002/mame.200500137

Nastasović A, Onjia A, Milonjić SK, Vuković ZM, Jovanović S. Characterization of glycidyl methacrylate based copolymers by inverse gas chromatography under finite surface coverage. in Macromolecular Materials and Engineering. 2005;290(9):884-890.
doi:10.1002/mame.200500137 .

Nastasović, Aleksandra, Onjia, Antonije, Milonjić, Slobodan K., Vuković, Zorica M., Jovanović, SM, "Characterization of glycidyl methacrylate based copolymers by inverse gas chromatography under finite surface coverage" in Macromolecular Materials and Engineering, 290, no. 9 (2005):884-890,
https://doi.org/10.1002/mame.200500137 . .