TY  - JOUR
AU  - Tadić, Tamara
AU  - Marković, Bojana
AU  - Vuković, Zorica
AU  - Stefanov, Plamen
AU  - Maksin, Danijela
AU  - Nastasović, Aleksandra
AU  - Onjia, Antonije
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7190
AB  - A novel porous gold polymer composite was prepared by the functionalization of a glycidyl methacrylate-based copolymer (pGME) with ethylene diamine (pGME-en), and activation by gold (pGME-en/Au), in a simple batch adsorption procedure in an acid solution, at room temperature. Detailed characterization of the pGME-en before and after activation was performed. The main focuses of this research were the design of a method that can enable the recovery of gold and the reuse of this multipurpose sorbent as an antimicrobial agent. Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) analysis pointed out amine groups as the primary binding sites for Au activation, while hydroxyl groups also contributed to the chelation reaction. pGME-en exhibited fast gold adsorption with an adsorption half-time of 5 min and an equilibrium time of 30 min. The maximal adsorption capacity was about 187 mg/g. The analysis of sorption experimental data with a non-linear surface reaction and diffusion-based kinetic models revealed the pseudo-second-order and Avrami model as the best fit, with unambiguous control by liquid film and intra-particle diffusion. The biological activity studies against Staphylococcus aureus, Listeria monocytogenes, Escherichia coli, and Candida albicans revealed moderate activity of pGME-en/Au against different bacterial and fungal species. pGME-en/Au was stable in a saline solution, with a release of approximately 2.3 mg/g after 24 h.
T2  - Metals
T1  - Fast Gold Recovery from Aqueous Solutions and Assessment of Antimicrobial Activities of Novel Gold Composite
VL  - 13
IS  - 11
SP  - 1864
DO  - 10.3390/met13111864
ER  - 

@article{
author = "Tadić, Tamara and Marković, Bojana and Vuković, Zorica and Stefanov, Plamen and Maksin, Danijela and Nastasović, Aleksandra and Onjia, Antonije",
year = "2023",
abstract = "A novel porous gold polymer composite was prepared by the functionalization of a glycidyl methacrylate-based copolymer (pGME) with ethylene diamine (pGME-en), and activation by gold (pGME-en/Au), in a simple batch adsorption procedure in an acid solution, at room temperature. Detailed characterization of the pGME-en before and after activation was performed. The main focuses of this research were the design of a method that can enable the recovery of gold and the reuse of this multipurpose sorbent as an antimicrobial agent. Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) analysis pointed out amine groups as the primary binding sites for Au activation, while hydroxyl groups also contributed to the chelation reaction. pGME-en exhibited fast gold adsorption with an adsorption half-time of 5 min and an equilibrium time of 30 min. The maximal adsorption capacity was about 187 mg/g. The analysis of sorption experimental data with a non-linear surface reaction and diffusion-based kinetic models revealed the pseudo-second-order and Avrami model as the best fit, with unambiguous control by liquid film and intra-particle diffusion. The biological activity studies against Staphylococcus aureus, Listeria monocytogenes, Escherichia coli, and Candida albicans revealed moderate activity of pGME-en/Au against different bacterial and fungal species. pGME-en/Au was stable in a saline solution, with a release of approximately 2.3 mg/g after 24 h.",
journal = "Metals",
title = "Fast Gold Recovery from Aqueous Solutions and Assessment of Antimicrobial Activities of Novel Gold Composite",
volume = "13",
number = "11",
pages = "1864",
doi = "10.3390/met13111864"
}

Tadić, T., Marković, B., Vuković, Z., Stefanov, P., Maksin, D., Nastasović, A.,& Onjia, A.. (2023). Fast Gold Recovery from Aqueous Solutions and Assessment of Antimicrobial Activities of Novel Gold Composite. in Metals, 13(11), 1864.
https://doi.org/10.3390/met13111864

Tadić T, Marković B, Vuković Z, Stefanov P, Maksin D, Nastasović A, Onjia A. Fast Gold Recovery from Aqueous Solutions and Assessment of Antimicrobial Activities of Novel Gold Composite. in Metals. 2023;13(11):1864.
doi:10.3390/met13111864 .

Tadić, Tamara, Marković, Bojana, Vuković, Zorica, Stefanov, Plamen, Maksin, Danijela, Nastasović, Aleksandra, Onjia, Antonije, "Fast Gold Recovery from Aqueous Solutions and Assessment of Antimicrobial Activities of Novel Gold Composite" in Metals, 13, no. 11 (2023):1864,
https://doi.org/10.3390/met13111864 . .

TY  - JOUR
AU  - Ekmeščić, Bojana
AU  - Maksin, Danijela
AU  - Marković, Jelena
AU  - Vuković, Zorica
AU  - Hercigonja, Radmila
AU  - Nastasović, Aleksandra
AU  - Onjia, Antonije E.
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1838
AB  - The presented study describes macroporous crosslinked poly(glycidyl methacrylate-co-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 298-343K. 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 4.02mmolg- 1 at 298K, at the selected pH which is consistent with the predominance range of hydrolized polynuclear Mo(VI) forms and optimum electrostatic attraction.
PB  - Elsevier
T2  - Arabian Journal of Chemistry
T1  - Recovery of molybdenum oxyanions using macroporous copolymer grafted with diethylenetriamine
VL  - 12
IS  - 8
SP  - 3628
EP  - 3638
DO  - 10.1016/j.arabjc.2015.11.010
ER  - 

@article{
author = "Ekmeščić, Bojana and Maksin, Danijela and Marković, Jelena and Vuković, Zorica and Hercigonja, Radmila and Nastasović, Aleksandra and Onjia, Antonije E.",
year = "2019",
abstract = "The presented study describes macroporous crosslinked poly(glycidyl methacrylate-co-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 298-343K. 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 4.02mmolg- 1 at 298K, at the selected pH which is consistent with the predominance range of hydrolized polynuclear Mo(VI) forms and optimum electrostatic attraction.",
publisher = "Elsevier",
journal = "Arabian Journal of Chemistry",
title = "Recovery of molybdenum oxyanions using macroporous copolymer grafted with diethylenetriamine",
volume = "12",
number = "8",
pages = "3628-3638",
doi = "10.1016/j.arabjc.2015.11.010"
}

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

Ekmeščić B, Maksin D, Marković J, Vuković Z, Hercigonja R, Nastasović A, Onjia AE. 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, Vuković, Zorica, Hercigonja, Radmila, Nastasović, Aleksandra, Onjia, Antonije E., "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  - Hercigonja, Radmila
AU  - Vranješ-Đurić, Sanja
AU  - Mirković, Marija D.
AU  - Marković, Bojana
AU  - Maksin, Danijela
AU  - Marković, Bojana
AU  - Nastasović, Aleksandra
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2290
AB  - The adsorption properties of two zeolite types, faujasite (NaY, ZnY, CoY) and LTA-4A zeolite (NaA, ZnA, CoA), towards technetium were studied in batch static experiments. The Si/Al ratio, acidity, dealumination, chargebalance cations of zeolite, contact time and temperature determined the adsorption efficiency. The maximum removal efficiency of 98.8% and K (d) value (2.06 x 10(-4) cm(3) g(-1)) was achieved using CoY (zeolite type Y). The kinetics of technetium adsorption followed the pseudo-second order model. The TcO2 adsorption is mainly due to the hydrogen bonds between protons of the zeolitic structural OH groups (Bronsted acid center) and oxygen from the TcO2 (-).
PB  - Dordrecht : Springer
T2  - Journal of Radioanalytical and Nuclear Chemistry
T1  - Technetium removal from the aqueous solution using zeolites A and Y containing transition metal ions Co2+ and Zn2+
VL  - 317
IS  - 1
SP  - 215
EP  - 225
DO  - 10.1007/s10967-018-5893-2
ER  - 

@article{
author = "Hercigonja, Radmila and Vranješ-Đurić, Sanja and Mirković, Marija D. and Marković, Bojana and Maksin, Danijela and Marković, Bojana and Nastasović, Aleksandra",
year = "2018",
abstract = "The adsorption properties of two zeolite types, faujasite (NaY, ZnY, CoY) and LTA-4A zeolite (NaA, ZnA, CoA), towards technetium were studied in batch static experiments. The Si/Al ratio, acidity, dealumination, chargebalance cations of zeolite, contact time and temperature determined the adsorption efficiency. The maximum removal efficiency of 98.8% and K (d) value (2.06 x 10(-4) cm(3) g(-1)) was achieved using CoY (zeolite type Y). The kinetics of technetium adsorption followed the pseudo-second order model. The TcO2 adsorption is mainly due to the hydrogen bonds between protons of the zeolitic structural OH groups (Bronsted acid center) and oxygen from the TcO2 (-).",
publisher = "Dordrecht : Springer",
journal = "Journal of Radioanalytical and Nuclear Chemistry",
title = "Technetium removal from the aqueous solution using zeolites A and Y containing transition metal ions Co2+ and Zn2+",
volume = "317",
number = "1",
pages = "215-225",
doi = "10.1007/s10967-018-5893-2"
}

Hercigonja, R., Vranješ-Đurić, S., Mirković, M. D., Marković, B., Maksin, D., Marković, B.,& Nastasović, A.. (2018). Technetium removal from the aqueous solution using zeolites A and Y containing transition metal ions Co2+ and Zn2+. in Journal of Radioanalytical and Nuclear Chemistry
Dordrecht : Springer., 317(1), 215-225.
https://doi.org/10.1007/s10967-018-5893-2

Hercigonja R, Vranješ-Đurić S, Mirković MD, Marković B, Maksin D, Marković B, Nastasović A. Technetium removal from the aqueous solution using zeolites A and Y containing transition metal ions Co2+ and Zn2+. in Journal of Radioanalytical and Nuclear Chemistry. 2018;317(1):215-225.
doi:10.1007/s10967-018-5893-2 .

Hercigonja, Radmila, Vranješ-Đurić, Sanja, Mirković, Marija D., Marković, Bojana, Maksin, Danijela, Marković, Bojana, Nastasović, Aleksandra, "Technetium removal from the aqueous solution using zeolites A and Y containing transition metal ions Co2+ and Zn2+" in Journal of Radioanalytical and Nuclear Chemistry, 317, no. 1 (2018):215-225,
https://doi.org/10.1007/s10967-018-5893-2 . .

TY  - JOUR
AU  - Marković, Bojana
AU  - Maksin, Danijela
AU  - Mojović, Zorica
AU  - Vuković, Zorica
AU  - Nastasović, Aleksandra
AU  - Jovanović, Dušan M.
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2079
AB  - In this study, macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) was synthesized by suspension copolymerization, functionalized by ring-opening reaction of the pendant epoxy groups with diethylene triamine and used for immobilization of Pd(II) ions from chloride and nitrate solutions under batch experimental condition. The amino-functionalized sample and samples with immobilized Pd(II) ions were characterized by Fourier transform infrared spectroscopy (FTIR) analysis and scanning energy-dispersive X-ray spectroscopy (SEM-EDX). The electrochemical behavior of electrodes composed of synthesized samples was tested in 0.1 M H2SO4 by means of cyclic voltammetry (CV). The shape of recorded CV showed dependence on the type of Pd-salt used for Pd immobilization. The reaction of oxidation of 4-chlorophenol (4-CP) from 0.1 M H2SO4 at investigated samples was also studied. Electrooxidation of 4-CP resulted in passivation and formation of reversible hydroquinone/benzoquinone on both investigated electrodes, although hydroquinone/benzoquinone formation was more pronounced on Pd immobilized from nitrite solution.
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - Electrochemical behavior of palladium modified amino-functionalized macroporous copolymer
VL  - 786
SP  - 94
EP  - 101
DO  - 10.1016/j.jelechem.2017.01.018
ER  - 

@article{
author = "Marković, Bojana and Maksin, Danijela and Mojović, Zorica and Vuković, Zorica and Nastasović, Aleksandra and Jovanović, Dušan M.",
year = "2017",
abstract = "In this study, macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) was synthesized by suspension copolymerization, functionalized by ring-opening reaction of the pendant epoxy groups with diethylene triamine and used for immobilization of Pd(II) ions from chloride and nitrate solutions under batch experimental condition. The amino-functionalized sample and samples with immobilized Pd(II) ions were characterized by Fourier transform infrared spectroscopy (FTIR) analysis and scanning energy-dispersive X-ray spectroscopy (SEM-EDX). The electrochemical behavior of electrodes composed of synthesized samples was tested in 0.1 M H2SO4 by means of cyclic voltammetry (CV). The shape of recorded CV showed dependence on the type of Pd-salt used for Pd immobilization. The reaction of oxidation of 4-chlorophenol (4-CP) from 0.1 M H2SO4 at investigated samples was also studied. Electrooxidation of 4-CP resulted in passivation and formation of reversible hydroquinone/benzoquinone on both investigated electrodes, although hydroquinone/benzoquinone formation was more pronounced on Pd immobilized from nitrite solution.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "Electrochemical behavior of palladium modified amino-functionalized macroporous copolymer",
volume = "786",
pages = "94-101",
doi = "10.1016/j.jelechem.2017.01.018"
}

Marković, B., Maksin, D., Mojović, Z., Vuković, Z., Nastasović, A.,& Jovanović, D. M.. (2017). Electrochemical behavior of palladium modified amino-functionalized macroporous copolymer. in Journal of Electroanalytical Chemistry
Elsevier., 786, 94-101.
https://doi.org/10.1016/j.jelechem.2017.01.018

Marković B, Maksin D, Mojović Z, Vuković Z, Nastasović A, Jovanović DM. Electrochemical behavior of palladium modified amino-functionalized macroporous copolymer. in Journal of Electroanalytical Chemistry. 2017;786:94-101.
doi:10.1016/j.jelechem.2017.01.018 .

Marković, Bojana, Maksin, Danijela, Mojović, Zorica, Vuković, Zorica, Nastasović, Aleksandra, Jovanović, Dušan M., "Electrochemical behavior of palladium modified amino-functionalized macroporous copolymer" in Journal of Electroanalytical Chemistry, 786 (2017):94-101,
https://doi.org/10.1016/j.jelechem.2017.01.018 . .

TY  - JOUR
AU  - Marković, Bojana
AU  - Janković, Drina
AU  - Vukadinovic, Aleksandar A.
AU  - Randjelović, Danijela
AU  - Maksin, Danijela
AU  - Spasojević, Vojislav
AU  - Nastasović, Aleksandra
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2241
AB  - A novel magnetic macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (mPGME) was prepared by suspension copolymerization and functionalized with diethylenetriamine (mPGME-deta). The samples were characterized by Fourier transform infrared spectroscopy (FTIR) analysis, mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), atomic force microscopy (AFM) and SQUID magnetometry. The sorption behavior of mPGME-deta toward pertechnetate ions (TcO4-) from aqueous solution was studied. Experimental results indicated relatively fast TcO4- sorption kinetics that depends on pH and ionic strength, with a high removal efficiency of 99% within 180 min in the pH range 3.0-5.0. The pseudo-second-order model yielded the best fit for the kinetic data.
PB  - The Royal Society of Chemistry
T2  - RSC Advances
T1  - A novel macroporous polymer-inorganic nanocomposite as a sorbent for pertechnetate ions
VL  - 7
IS  - 35
SP  - 21412
EP  - 21421
DO  - 10.1039/c7ra02783d
ER  - 

@article{
author = "Marković, Bojana and Janković, Drina and Vukadinovic, Aleksandar A. and Randjelović, Danijela and Maksin, Danijela and Spasojević, Vojislav and Nastasović, Aleksandra",
year = "2017",
abstract = "A novel magnetic macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (mPGME) was prepared by suspension copolymerization and functionalized with diethylenetriamine (mPGME-deta). The samples were characterized by Fourier transform infrared spectroscopy (FTIR) analysis, mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), atomic force microscopy (AFM) and SQUID magnetometry. The sorption behavior of mPGME-deta toward pertechnetate ions (TcO4-) from aqueous solution was studied. Experimental results indicated relatively fast TcO4- sorption kinetics that depends on pH and ionic strength, with a high removal efficiency of 99% within 180 min in the pH range 3.0-5.0. The pseudo-second-order model yielded the best fit for the kinetic data.",
publisher = "The Royal Society of Chemistry",
journal = "RSC Advances",
title = "A novel macroporous polymer-inorganic nanocomposite as a sorbent for pertechnetate ions",
volume = "7",
number = "35",
pages = "21412-21421",
doi = "10.1039/c7ra02783d"
}

Marković, B., Janković, D., Vukadinovic, A. A., Randjelović, D., Maksin, D., Spasojević, V.,& Nastasović, A.. (2017). A novel macroporous polymer-inorganic nanocomposite as a sorbent for pertechnetate ions. in RSC Advances
The Royal Society of Chemistry., 7(35), 21412-21421.
https://doi.org/10.1039/c7ra02783d

Marković B, Janković D, Vukadinovic AA, Randjelović D, Maksin D, Spasojević V, Nastasović A. A novel macroporous polymer-inorganic nanocomposite as a sorbent for pertechnetate ions. in RSC Advances. 2017;7(35):21412-21421.
doi:10.1039/c7ra02783d .

Marković, Bojana, Janković, Drina, Vukadinovic, Aleksandar A., Randjelović, Danijela, Maksin, Danijela, Spasojević, Vojislav, Nastasović, Aleksandra, "A novel macroporous polymer-inorganic nanocomposite as a sorbent for pertechnetate ions" in RSC Advances, 7, no. 35 (2017):21412-21421,
https://doi.org/10.1039/c7ra02783d . .

TY  - JOUR
AU  - Marković, Bojana
AU  - Maksin, Danijela
AU  - Mojović, Zorica
AU  - Vuković, Zorica
AU  - Nastasović, Aleksandra
AU  - Jovanović, Dušan M.
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3019
AB  - In this study, macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) was synthesized by suspension copolymerization, functionalized by ring-opening reaction of the pendant epoxy groups with diethylene triamine and used for immobilization of Pd(II) ions from chloride and nitrate solutions under batch experimental condition. The amino-functionalized sample and samples with immobilized Pd(II) ions were characterized by Fourier transform infrared spectroscopy (FTIR) analysis and scanning energy-dispersive X-ray spectroscopy (SEM-EDX). The electrochemical behavior of electrodes composed of synthesized samples was tested in 0.1 M H2SO4 by means of cyclic voltammetry (CV). The shape of recorded CV showed dependence on the type of Pd-salt used for Pd immobilization. The reaction of oxidation of 4-chlorophenol (4-CP) from 0.1 M H2SO4 at investigated samples was also studied. Electrooxidation of 4-CP resulted in passivation and formation of reversible hydroquinone/benzoquinone on both investigated electrodes, although hydroquinone/benzoquinone formation was more pronounced on Pd immobilized from nitrite solution.
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - Electrochemical behavior of palladium modified amino-functionalized macroporous copolymer
VL  - 786
SP  - 94
EP  - 101
DO  - 10.1016/j.jelechem.2017.01.018
ER  - 

@article{
author = "Marković, Bojana and Maksin, Danijela and Mojović, Zorica and Vuković, Zorica and Nastasović, Aleksandra and Jovanović, Dušan M.",
year = "2017",
abstract = "In this study, macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) was synthesized by suspension copolymerization, functionalized by ring-opening reaction of the pendant epoxy groups with diethylene triamine and used for immobilization of Pd(II) ions from chloride and nitrate solutions under batch experimental condition. The amino-functionalized sample and samples with immobilized Pd(II) ions were characterized by Fourier transform infrared spectroscopy (FTIR) analysis and scanning energy-dispersive X-ray spectroscopy (SEM-EDX). The electrochemical behavior of electrodes composed of synthesized samples was tested in 0.1 M H2SO4 by means of cyclic voltammetry (CV). The shape of recorded CV showed dependence on the type of Pd-salt used for Pd immobilization. The reaction of oxidation of 4-chlorophenol (4-CP) from 0.1 M H2SO4 at investigated samples was also studied. Electrooxidation of 4-CP resulted in passivation and formation of reversible hydroquinone/benzoquinone on both investigated electrodes, although hydroquinone/benzoquinone formation was more pronounced on Pd immobilized from nitrite solution.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "Electrochemical behavior of palladium modified amino-functionalized macroporous copolymer",
volume = "786",
pages = "94-101",
doi = "10.1016/j.jelechem.2017.01.018"
}

Marković, B., Maksin, D., Mojović, Z., Vuković, Z., Nastasović, A.,& Jovanović, D. M.. (2017). Electrochemical behavior of palladium modified amino-functionalized macroporous copolymer. in Journal of Electroanalytical Chemistry
Elsevier., 786, 94-101.
https://doi.org/10.1016/j.jelechem.2017.01.018

Marković B, Maksin D, Mojović Z, Vuković Z, Nastasović A, Jovanović DM. Electrochemical behavior of palladium modified amino-functionalized macroporous copolymer. in Journal of Electroanalytical Chemistry. 2017;786:94-101.
doi:10.1016/j.jelechem.2017.01.018 .

Marković, Bojana, Maksin, Danijela, Mojović, Zorica, Vuković, Zorica, Nastasović, Aleksandra, Jovanović, Dušan M., "Electrochemical behavior of palladium modified amino-functionalized macroporous copolymer" in Journal of Electroanalytical Chemistry, 786 (2017):94-101,
https://doi.org/10.1016/j.jelechem.2017.01.018 . .

TY  - JOUR
AU  - Maksin, Danijela
AU  - Nastasović, Aleksandra
AU  - Maksin, Tatjana N
AU  - Sandić, Zvjezdana P.
AU  - Loos, Katja
AU  - Ekmeščić, Bojana
AU  - Onjia, Antonije E.
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1957
AB  - Synthesis of an unconventional resin based on 4-vinylpyridine (4-VP) and its Cu(II) sorption behavior were studied. Three samples of macroporous crosslinked poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) (P4VPE) with different porosity parameters were prepared by suspension copolymerization by varying the n-heptane amount in the inert component. The samples were characterized by mercury porosimetry, elemental analysis and X-ray photoelectron spectroscopy (XPS). The sorption of P4VPE for Cu(II) ions, determined under non-competitive conditions, was relatively rapid, i.e., the maximum capacity was reached within 30 min. The maximum experimental sorption capacity for the sample with the highest values of pore diameter and specific pore volume (sample 3, Q(eq) = 89 mg g(-1)) was 17.5 times higher than for the sample with the lowest values of pore diameter and specific pore volume (sample 1, Q(eq) = 5.1 mg g(-1)). Since the values for pyridine content in all P4VPE samples were almost the same, it was concluded that the porosity parameters have predominant influence on Cu(II) sorption rates on P4VPE. The sorption behavior and the rate-controlling mechanisms were analyzed using six kinetic models (pseudo-first order, pseudo-second order, Elovich, intraparticle diffusion, Bangham and Boyd models). XPS study clarified the nature of the formed P4VPE-Cu(II) species.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Cu(II) immobilization onto a one-step synthesized poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) resin: Kinetics and XPS analysis
VL  - 70
IS  - 1
SP  - 9
EP  - 19
DO  - 10.2298/HEMIND141203007M
ER  - 

@article{
author = "Maksin, Danijela and Nastasović, Aleksandra and Maksin, Tatjana N and Sandić, Zvjezdana P. and Loos, Katja and Ekmeščić, Bojana and Onjia, Antonije E.",
year = "2016",
abstract = "Synthesis of an unconventional resin based on 4-vinylpyridine (4-VP) and its Cu(II) sorption behavior were studied. Three samples of macroporous crosslinked poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) (P4VPE) with different porosity parameters were prepared by suspension copolymerization by varying the n-heptane amount in the inert component. The samples were characterized by mercury porosimetry, elemental analysis and X-ray photoelectron spectroscopy (XPS). The sorption of P4VPE for Cu(II) ions, determined under non-competitive conditions, was relatively rapid, i.e., the maximum capacity was reached within 30 min. The maximum experimental sorption capacity for the sample with the highest values of pore diameter and specific pore volume (sample 3, Q(eq) = 89 mg g(-1)) was 17.5 times higher than for the sample with the lowest values of pore diameter and specific pore volume (sample 1, Q(eq) = 5.1 mg g(-1)). Since the values for pyridine content in all P4VPE samples were almost the same, it was concluded that the porosity parameters have predominant influence on Cu(II) sorption rates on P4VPE. The sorption behavior and the rate-controlling mechanisms were analyzed using six kinetic models (pseudo-first order, pseudo-second order, Elovich, intraparticle diffusion, Bangham and Boyd models). XPS study clarified the nature of the formed P4VPE-Cu(II) species.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Cu(II) immobilization onto a one-step synthesized poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) resin: Kinetics and XPS analysis",
volume = "70",
number = "1",
pages = "9-19",
doi = "10.2298/HEMIND141203007M"
}

Maksin, D., Nastasović, A., Maksin, T. N., Sandić, Z. P., Loos, K., Ekmeščić, B.,& Onjia, A. E.. (2016). Cu(II) immobilization onto a one-step synthesized poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) resin: Kinetics and XPS analysis. in Hemijska industrija
Association of Chemical Engineers of Serbia., 70(1), 9-19.
https://doi.org/10.2298/HEMIND141203007M

Maksin D, Nastasović A, Maksin TN, Sandić ZP, Loos K, Ekmeščić B, Onjia AE. Cu(II) immobilization onto a one-step synthesized poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) resin: Kinetics and XPS analysis. in Hemijska industrija. 2016;70(1):9-19.
doi:10.2298/HEMIND141203007M .

Maksin, Danijela, Nastasović, Aleksandra, Maksin, Tatjana N, Sandić, Zvjezdana P., Loos, Katja, Ekmeščić, Bojana, Onjia, Antonije E., "Cu(II) immobilization onto a one-step synthesized poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) resin: Kinetics and XPS analysis" in Hemijska industrija, 70, no. 1 (2016):9-19,
https://doi.org/10.2298/HEMIND141203007M . .

TY  - CONF
AU  - Nastasović, Aleksandra
AU  - Novaković, Tatjana
AU  - Vuković, Zorica
AU  - Ekmeščić, Bojana
AU  - Randjelović, Danijela
AU  - Maksin, Danijela
AU  - Miladinović, Zoran P.
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3407
AB  - Porous monolithic glycidyl methacrylate (GMA) and ethylene glycol
dimethacrylate (EGDMA) copolymer [PGME] and three composite samples with
alumina (PGME/alumina) were synthesized by radical copolymerization in a cast
and functionalized by reaction of diethylene triamine (deta) with epoxy groups in
GMA. All the samples were characterized using FTIR-ATR spectroscopy, SEM,
AFM, solid state NMR, thermogravimetry and mercury porosimetry. Additionally,
amino functionalized PGME/alumina with the highest alumina content
(PGME/alumina50-deta) was loaded with chromium [Cr(VI)] ions. Kinetics of Cr
(VI) sorption was investigated in batch static experiments, at 298 K and pH = 2, for
various initial concentrations (Ci = 0.5, 1.5 and 2.5 mM) and analyzed using three
kinetic models. Cr(VI) sorption by PGME/alumina50-deta obeys the PSO kinetic
model, while IPD model suggests some degree of intraparticle pore diffusion control.
PB  - Paris : Atlantis Press
C3  - Proceedings of the III Advanced Ceramics and Applications Conference
T1  - Polymer-Based Monolithic Porous Composite
SP  - 241
EP  - 257
DO  - 10.2991/978-94-6239-157-4_17
ER  - 

@conference{
author = "Nastasović, Aleksandra and Novaković, Tatjana and Vuković, Zorica and Ekmeščić, Bojana and Randjelović, Danijela and Maksin, Danijela and Miladinović, Zoran P.",
year = "2016",
abstract = "Porous monolithic glycidyl methacrylate (GMA) and ethylene glycol
dimethacrylate (EGDMA) copolymer [PGME] and three composite samples with
alumina (PGME/alumina) were synthesized by radical copolymerization in a cast
and functionalized by reaction of diethylene triamine (deta) with epoxy groups in
GMA. All the samples were characterized using FTIR-ATR spectroscopy, SEM,
AFM, solid state NMR, thermogravimetry and mercury porosimetry. Additionally,
amino functionalized PGME/alumina with the highest alumina content
(PGME/alumina50-deta) was loaded with chromium [Cr(VI)] ions. Kinetics of Cr
(VI) sorption was investigated in batch static experiments, at 298 K and pH = 2, for
various initial concentrations (Ci = 0.5, 1.5 and 2.5 mM) and analyzed using three
kinetic models. Cr(VI) sorption by PGME/alumina50-deta obeys the PSO kinetic
model, while IPD model suggests some degree of intraparticle pore diffusion control.",
publisher = "Paris : Atlantis Press",
journal = "Proceedings of the III Advanced Ceramics and Applications Conference",
title = "Polymer-Based Monolithic Porous Composite",
pages = "241-257",
doi = "10.2991/978-94-6239-157-4_17"
}

Nastasović, A., Novaković, T., Vuković, Z., Ekmeščić, B., Randjelović, D., Maksin, D.,& Miladinović, Z. P.. (2016). Polymer-Based Monolithic Porous Composite. in Proceedings of the III Advanced Ceramics and Applications Conference
Paris : Atlantis Press., 241-257.
https://doi.org/10.2991/978-94-6239-157-4_17

Nastasović A, Novaković T, Vuković Z, Ekmeščić B, Randjelović D, Maksin D, Miladinović ZP. Polymer-Based Monolithic Porous Composite. in Proceedings of the III Advanced Ceramics and Applications Conference. 2016;:241-257.
doi:10.2991/978-94-6239-157-4_17 .

Nastasović, Aleksandra, Novaković, Tatjana, Vuković, Zorica, Ekmeščić, Bojana, Randjelović, Danijela, Maksin, Danijela, Miladinović, Zoran P., "Polymer-Based Monolithic Porous Composite" in Proceedings of the III Advanced Ceramics and Applications Conference (2016):241-257,
https://doi.org/10.2991/978-94-6239-157-4_17 . .

TY  - JOUR
AU  - Stefanović, Ivan
AU  - Ekmeščić, Bojana
AU  - Maksin, Danijela
AU  - Nastasović, Aleksandra
AU  - Miladinović, Zoran P.
AU  - Vuković, Zorica
AU  - Micic, Darko M
AU  - Pergal, Marija
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1622
AB  - Novel macroporous functionalized copolymers with different cross-linker concentrations and porosity parameters were synthesized by reaction of the pendant epoxy groups of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (poly(GMA-co-EGDMA)) with hexamethylene diamine 1,3-bis(3-aminopropyl)tetramethyldisiloxane, and alpha,omega-diaminopropyl poly(dimethylsiloxane). The copolymers were prepared in forms, of spherical beads and characterized by Fourier transform infrared (FTIR); C-13 and Si-29 solid-state NMR, mercury porosimetry, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). Copolymers prepared with the higher cross-linker concentrations have better thermal stability, higher glass transition temperatures; higher specific surface areas, and smaller pore diameters that correspond to half Of the pore volumes. Out results show that functionalization significantly changed porosity parameters, mechanism of thermal degradation; and increased thermal, stability in comparison with the initial copolymers. These macroporous copolymers could potentially have many applications, i.e. for sorption of heavy and precious metals or as Material for gas chromatography columns.
PB  - American Chemical Society (ACS)
T2  - Industrial and Engineering Chemistry Research
T1  - Structure, Thermal, and Morphological Properties of Novel Macroporous Amino-Functionalized Glycidyl Methacrylate Based Copolymers
VL  - 54
IS  - 27
SP  - 6902
EP  - 6911
DO  - 10.1021/acs.iecr.5b01285
ER  - 

@article{
author = "Stefanović, Ivan and Ekmeščić, Bojana and Maksin, Danijela and Nastasović, Aleksandra and Miladinović, Zoran P. and Vuković, Zorica and Micic, Darko M and Pergal, Marija",
year = "2015",
abstract = "Novel macroporous functionalized copolymers with different cross-linker concentrations and porosity parameters were synthesized by reaction of the pendant epoxy groups of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (poly(GMA-co-EGDMA)) with hexamethylene diamine 1,3-bis(3-aminopropyl)tetramethyldisiloxane, and alpha,omega-diaminopropyl poly(dimethylsiloxane). The copolymers were prepared in forms, of spherical beads and characterized by Fourier transform infrared (FTIR); C-13 and Si-29 solid-state NMR, mercury porosimetry, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). Copolymers prepared with the higher cross-linker concentrations have better thermal stability, higher glass transition temperatures; higher specific surface areas, and smaller pore diameters that correspond to half Of the pore volumes. Out results show that functionalization significantly changed porosity parameters, mechanism of thermal degradation; and increased thermal, stability in comparison with the initial copolymers. These macroporous copolymers could potentially have many applications, i.e. for sorption of heavy and precious metals or as Material for gas chromatography columns.",
publisher = "American Chemical Society (ACS)",
journal = "Industrial and Engineering Chemistry Research",
title = "Structure, Thermal, and Morphological Properties of Novel Macroporous Amino-Functionalized Glycidyl Methacrylate Based Copolymers",
volume = "54",
number = "27",
pages = "6902-6911",
doi = "10.1021/acs.iecr.5b01285"
}

Stefanović, I., Ekmeščić, B., Maksin, D., Nastasović, A., Miladinović, Z. P., Vuković, Z., Micic, D. M.,& Pergal, M.. (2015). Structure, Thermal, and Morphological Properties of Novel Macroporous Amino-Functionalized Glycidyl Methacrylate Based Copolymers. in Industrial and Engineering Chemistry Research
American Chemical Society (ACS)., 54(27), 6902-6911.
https://doi.org/10.1021/acs.iecr.5b01285

Stefanović I, Ekmeščić B, Maksin D, Nastasović A, Miladinović ZP, Vuković Z, Micic DM, Pergal M. Structure, Thermal, and Morphological Properties of Novel Macroporous Amino-Functionalized Glycidyl Methacrylate Based Copolymers. in Industrial and Engineering Chemistry Research. 2015;54(27):6902-6911.
doi:10.1021/acs.iecr.5b01285 .

Stefanović, Ivan, Ekmeščić, Bojana, Maksin, Danijela, Nastasović, Aleksandra, Miladinović, Zoran P., Vuković, Zorica, Micic, Darko M, Pergal, Marija, "Structure, Thermal, and Morphological Properties of Novel Macroporous Amino-Functionalized Glycidyl Methacrylate Based Copolymers" in Industrial and Engineering Chemistry Research, 54, no. 27 (2015):6902-6911,
https://doi.org/10.1021/acs.iecr.5b01285 . .

TY  - JOUR
AU  - Sandić, Zvjezdana P.
AU  - Žunić, Marija
AU  - Maksin, Danijela
AU  - Milutinović Nikolić, Aleksandra
AU  - Popović, Aleksandar R.
AU  - Jovanović, Dušan M.
AU  - Nastasović, Aleksandra
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1450
AB  - In this paper, macroporous glycidyl methacrylate and ethylene glycol dimethacrylate copolymer functionalized with diethylene triamine (PGME-deta), was evaluated as Reactive Black 5 (RB5) sorbent. Batch RB5 removal from aqueous solution by PGME-deta was investigated by varying pH, contact time, sorbent dosage, initial dye concentration and temperature. The sorption is pH sensitive having maximum at pH 2 (dye removal of 85%), decreasing with the increase of pH (dye removal of 24% at pH 11) after 60 min. Sorption kinetics was fitted to chemical-reaction and particle-diffusion models (pseudo-first-, pseudo-second-order, intraparticle diffusion and Mckay models). The pseudo-second-order kinetic model accurately predicted the RB5 amount sorbed under all investigated operating conditions, while the intraparticle diffusion was the dominant rate-limiting mechanism. The diffusion mechanism was more prevalent with the decrease in temperature and the increase in concentration. The isotherm data was best fitted with the Langmuir model, indicating homogeneous distribution of active sites on PGME-deta and monolayer sorption, with the maximum sorption capacity of 353 mg g-1. The calculated sorption rates improved with increasing temperature and an activation energy close to 40 kJ mol-1 was determined, suggesting that chemisorption was also rate-controlling.
AB  - U okviru ovog rada ispitana je mogućnost korišćenja makroporoznog kopolimera glicidilmetakrilata i etilenglikoldimetakrilata funkcionalizovanog reakcijom otvaranja epoksidnih grupa sa dietilentriaminom (PGME-deta) kao sorbenta reaktivne tekstilne boje Reactive Black 5 (RB5). U šaržnim uslovima je ispitano uklanjanje RB5 iz vodenog rastvora pomoću PGME-deta, variranjem pH, vremena kontakta, mase sorbenta, početne koncentracije boje i temperature. PGME-deta je pokazao afinitet za sorpciju RB5 zbog prisustva protonovanih amino grupa koje privlače anjonske sulfonatne grupe u molekulu boje i mogućnosti stvaranja vodoničnih veza između sorbenta i sorbata. Kinetika sorpcije je analizirana pomoću četiri kinetička modela (pseudo-prvog, pseudo-drugog reda, unutarčestične difuzije i Mekej) da bi se odredilo koji model najbolje opisuje sorpciju RB5. Zapažen je izrazit uticaj pH vrednosti na sorpciju RB5, sa maksimumom na pH 2 (pri čemu je efikasnost uklanjanja boje 85%), i smanjenjem količine sorbovane boje sa povećanjem pH (količina uklonjene boje na pH 11 posle 60 min iznosi samo 24%). Izučavanjem kinetike sorpcije pokazalo se da sorpcija RB5 pomoću PGME-deta sledi kinetički model pseudo-drugog reda (PSO), sugerišući da je brzina sorpcije kontrolisana kapacitetom sorbenta i koncentracijom sorbata. Mehanizam procesa dominantno čini unutarčestična difuzija, uz manji uticaj difuzije kroz film. Ovi mehanizmi difuzije su izraženiji pri nižim temperaturama i većim koncentracijama. Langmirov model najbolje opisuje ravnotežnu izotermu, ukazujući na homogenu raspodelu aktivnih mesta na površini PGME-deta i monoslojnu sorpciju. Maksimalni sorpcioni kapacitet izračunat iz Langmirove izoterme iznosi 353 mg g-1. Zapaženo je da se brzina sorpcije povećava sa povećanjem temperature. Izračunata vrednost aktivacione energije od oko 40 kJ mol-1 potvrđuje da se radi o procesu koji dominantno kontroliše hemisorpcija.
PB  - Assoc Chemical Engineers Serbia, Belgrade
T2  - Hemijska industrija
T1  - Glycidyl methacrylate macroporous copolymer grafted with diethylene triamine as sorbent for Reactive Black 5
T1  - Makroporozni kopolimer na bazi glicidilmetakrilata funkcionalizovan sa dietilentriaminom kao sorbent tekstilne boje Reactive Black 5
VL  - 68
IS  - 6
SP  - 685
EP  - 699
DO  - 10.2298/HEMIND140127023S
ER  - 

@article{
author = "Sandić, Zvjezdana P. and Žunić, Marija and Maksin, Danijela and Milutinović Nikolić, Aleksandra and Popović, Aleksandar R. and Jovanović, Dušan M. and Nastasović, Aleksandra",
year = "2014",
abstract = "In this paper, macroporous glycidyl methacrylate and ethylene glycol dimethacrylate copolymer functionalized with diethylene triamine (PGME-deta), was evaluated as Reactive Black 5 (RB5) sorbent. Batch RB5 removal from aqueous solution by PGME-deta was investigated by varying pH, contact time, sorbent dosage, initial dye concentration and temperature. The sorption is pH sensitive having maximum at pH 2 (dye removal of 85%), decreasing with the increase of pH (dye removal of 24% at pH 11) after 60 min. Sorption kinetics was fitted to chemical-reaction and particle-diffusion models (pseudo-first-, pseudo-second-order, intraparticle diffusion and Mckay models). The pseudo-second-order kinetic model accurately predicted the RB5 amount sorbed under all investigated operating conditions, while the intraparticle diffusion was the dominant rate-limiting mechanism. The diffusion mechanism was more prevalent with the decrease in temperature and the increase in concentration. The isotherm data was best fitted with the Langmuir model, indicating homogeneous distribution of active sites on PGME-deta and monolayer sorption, with the maximum sorption capacity of 353 mg g-1. The calculated sorption rates improved with increasing temperature and an activation energy close to 40 kJ mol-1 was determined, suggesting that chemisorption was also rate-controlling., U okviru ovog rada ispitana je mogućnost korišćenja makroporoznog kopolimera glicidilmetakrilata i etilenglikoldimetakrilata funkcionalizovanog reakcijom otvaranja epoksidnih grupa sa dietilentriaminom (PGME-deta) kao sorbenta reaktivne tekstilne boje Reactive Black 5 (RB5). U šaržnim uslovima je ispitano uklanjanje RB5 iz vodenog rastvora pomoću PGME-deta, variranjem pH, vremena kontakta, mase sorbenta, početne koncentracije boje i temperature. PGME-deta je pokazao afinitet za sorpciju RB5 zbog prisustva protonovanih amino grupa koje privlače anjonske sulfonatne grupe u molekulu boje i mogućnosti stvaranja vodoničnih veza između sorbenta i sorbata. Kinetika sorpcije je analizirana pomoću četiri kinetička modela (pseudo-prvog, pseudo-drugog reda, unutarčestične difuzije i Mekej) da bi se odredilo koji model najbolje opisuje sorpciju RB5. Zapažen je izrazit uticaj pH vrednosti na sorpciju RB5, sa maksimumom na pH 2 (pri čemu je efikasnost uklanjanja boje 85%), i smanjenjem količine sorbovane boje sa povećanjem pH (količina uklonjene boje na pH 11 posle 60 min iznosi samo 24%). Izučavanjem kinetike sorpcije pokazalo se da sorpcija RB5 pomoću PGME-deta sledi kinetički model pseudo-drugog reda (PSO), sugerišući da je brzina sorpcije kontrolisana kapacitetom sorbenta i koncentracijom sorbata. Mehanizam procesa dominantno čini unutarčestična difuzija, uz manji uticaj difuzije kroz film. Ovi mehanizmi difuzije su izraženiji pri nižim temperaturama i većim koncentracijama. Langmirov model najbolje opisuje ravnotežnu izotermu, ukazujući na homogenu raspodelu aktivnih mesta na površini PGME-deta i monoslojnu sorpciju. Maksimalni sorpcioni kapacitet izračunat iz Langmirove izoterme iznosi 353 mg g-1. Zapaženo je da se brzina sorpcije povećava sa povećanjem temperature. Izračunata vrednost aktivacione energije od oko 40 kJ mol-1 potvrđuje da se radi o procesu koji dominantno kontroliše hemisorpcija.",
publisher = "Assoc Chemical Engineers Serbia, Belgrade",
journal = "Hemijska industrija",
title = "Glycidyl methacrylate macroporous copolymer grafted with diethylene triamine as sorbent for Reactive Black 5, Makroporozni kopolimer na bazi glicidilmetakrilata funkcionalizovan sa dietilentriaminom kao sorbent tekstilne boje Reactive Black 5",
volume = "68",
number = "6",
pages = "685-699",
doi = "10.2298/HEMIND140127023S"
}

Sandić, Z. P., Žunić, M., Maksin, D., Milutinović Nikolić, A., Popović, A. R., Jovanović, D. M.,& Nastasović, A.. (2014). Glycidyl methacrylate macroporous copolymer grafted with diethylene triamine as sorbent for Reactive Black 5. in Hemijska industrija
Assoc Chemical Engineers Serbia, Belgrade., 68(6), 685-699.
https://doi.org/10.2298/HEMIND140127023S

Sandić ZP, Žunić M, Maksin D, Milutinović Nikolić A, Popović AR, Jovanović DM, Nastasović A. Glycidyl methacrylate macroporous copolymer grafted with diethylene triamine as sorbent for Reactive Black 5. in Hemijska industrija. 2014;68(6):685-699.
doi:10.2298/HEMIND140127023S .

Sandić, Zvjezdana P., Žunić, Marija, Maksin, Danijela, Milutinović Nikolić, Aleksandra, Popović, Aleksandar R., Jovanović, Dušan M., Nastasović, Aleksandra, "Glycidyl methacrylate macroporous copolymer grafted with diethylene triamine as sorbent for Reactive Black 5" in Hemijska industrija, 68, no. 6 (2014):685-699,
https://doi.org/10.2298/HEMIND140127023S . .

TY  - JOUR
AU  - Nastasović, Aleksandra
AU  - Ignjatović, Nenad
AU  - Uskoković, Dragan P.
AU  - Markovic, Dana D.
AU  - Ekmeščić, Bojana
AU  - Maksin, Danijela
AU  - Onjia, Antonije E.
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1598
AB  - Inverse gas chromatography at infinite dilution was applied to determine the thermodynamic interactions of poly(l-lactide) (PLLA) and the composite of biphasic calcium phosphate and PLLA (BCP/PLLA). The specific retention volumes, , of 11 organic compounds of different chemical nature and polarity (non-polar, donor or acceptor) were determined in the temperature range of 308-378 K for PLLA and 308-398 K for BCP/PLLA. The weight fraction activity coefficients of test sorbates, , and the Flory-Huggins interaction parameters, , were estimated and discussed in terms of interactions of the sorbates with PLLA and BCP/PLLA. Also, the partial molar free energy, , the partial molar heat of mixing, , the sorption molar free energy, , the sorption enthalpy, , and the sorption entropy, , were analyzed. A different chromatographic behavior of the two investigated samples, PLLA and BCP/PLLA, was observed. The values of indicated n-alkanes, diethyl ether, tetrahydrofurane (THF), cyclohexane, benzene, dioxane (except for 338 K), and ethyl acetate (EtAc) (except for 338 K) as non-solvents, and chloroform (CHCl3) as good solvent (except for 378 K) for PLLA. For BCP/PLLA, CHCl3, EtAc (for 378 K), dioxane (except for 378 K), and THF were indicated as good solvents.
PB  - Springer, New York
T2  - Journal of Materials Science
T1  - Determination of thermodynamic interactions of polylactide and biphasic calcium phosphate/polylactidecomposite by inverse gas chromatography at infinite dilution
VL  - 49
IS  - 14
SP  - 5076
EP  - 5086
DO  - 10.1007/s10853-014-8214-3
ER  - 

@article{
author = "Nastasović, Aleksandra and Ignjatović, Nenad and Uskoković, Dragan P. and Markovic, Dana D. and Ekmeščić, Bojana and Maksin, Danijela and Onjia, Antonije E.",
year = "2014",
abstract = "Inverse gas chromatography at infinite dilution was applied to determine the thermodynamic interactions of poly(l-lactide) (PLLA) and the composite of biphasic calcium phosphate and PLLA (BCP/PLLA). The specific retention volumes, , of 11 organic compounds of different chemical nature and polarity (non-polar, donor or acceptor) were determined in the temperature range of 308-378 K for PLLA and 308-398 K for BCP/PLLA. The weight fraction activity coefficients of test sorbates, , and the Flory-Huggins interaction parameters, , were estimated and discussed in terms of interactions of the sorbates with PLLA and BCP/PLLA. Also, the partial molar free energy, , the partial molar heat of mixing, , the sorption molar free energy, , the sorption enthalpy, , and the sorption entropy, , were analyzed. A different chromatographic behavior of the two investigated samples, PLLA and BCP/PLLA, was observed. The values of indicated n-alkanes, diethyl ether, tetrahydrofurane (THF), cyclohexane, benzene, dioxane (except for 338 K), and ethyl acetate (EtAc) (except for 338 K) as non-solvents, and chloroform (CHCl3) as good solvent (except for 378 K) for PLLA. For BCP/PLLA, CHCl3, EtAc (for 378 K), dioxane (except for 378 K), and THF were indicated as good solvents.",
publisher = "Springer, New York",
journal = "Journal of Materials Science",
title = "Determination of thermodynamic interactions of polylactide and biphasic calcium phosphate/polylactidecomposite by inverse gas chromatography at infinite dilution",
volume = "49",
number = "14",
pages = "5076-5086",
doi = "10.1007/s10853-014-8214-3"
}

Nastasović, A., Ignjatović, N., Uskoković, D. P., Markovic, D. D., Ekmeščić, B., Maksin, D.,& Onjia, A. E.. (2014). Determination of thermodynamic interactions of polylactide and biphasic calcium phosphate/polylactidecomposite by inverse gas chromatography at infinite dilution. in Journal of Materials Science
Springer, New York., 49(14), 5076-5086.
https://doi.org/10.1007/s10853-014-8214-3

Nastasović A, Ignjatović N, Uskoković DP, Markovic DD, Ekmeščić B, Maksin D, Onjia AE. Determination of thermodynamic interactions of polylactide and biphasic calcium phosphate/polylactidecomposite by inverse gas chromatography at infinite dilution. in Journal of Materials Science. 2014;49(14):5076-5086.
doi:10.1007/s10853-014-8214-3 .

Nastasović, Aleksandra, Ignjatović, Nenad, Uskoković, Dragan P., Markovic, Dana D., Ekmeščić, Bojana, Maksin, Danijela, Onjia, Antonije E., "Determination of thermodynamic interactions of polylactide and biphasic calcium phosphate/polylactidecomposite by inverse gas chromatography at infinite dilution" in Journal of Materials Science, 49, no. 14 (2014):5076-5086,
https://doi.org/10.1007/s10853-014-8214-3 . .

TY  - JOUR
AU  - Milutinović Nikolić, Aleksandra
AU  - Maksin, Danijela
AU  - Jović-Jovičić, Nataša
AU  - Mirkovic, M.
AU  - Stanković, Dragana
AU  - Mojović, Zorica
AU  - Banković, Predrag
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1569
AB  - (99)Technetium is one of the largest components of nuclear waste material. In aqueous solutions Tc-99 is present as the pertechnetate oxoanion, (TcO4-)-Tc-99, which is highly soluble and mobile in groundwater under oxidizing conditions, thus posing a major environmental concern. In this study, a series of organo-modified bentonite clay samples was tested as adsorbents for the removal of radioactive (TcO4-)-Tc-99 from aqueous solution at room temperature. The influence of the hexadecyl trimethylammonium (HDTMA)/bentonite ratio on the adsorption ability of the organobentonites was investigated. It was found that the adsorbent in which the exchangeable cations were only partially substituted with HDTMA showed very low affinity toward pertechnetate. On the other hand, the adsorbents in which the HDTMA loading exceeded the cation exchange capacity (CEC) value had high efficiency. The behavior of such adsorbents was best described by a Freundlich isotherm, while for the sample in which the HDTMA loading was equal to the CEC, the linear adsorption isotherm was the most appropriate. The difference in adsorption performance of several adsorbents was discussed from the point of view of the interlayer arrangement of the HDTMA. The kinetics of pertechnetate adsorption on HDTMA-bentonites was tested and analyzed using different surface reaction- and diffusion-based kinetic models. For all the investigated adsorbents, the most appropriate kinetic model was the pseudo-second-order kinetics model. The obtained adsorption capacities were and HDTMA-bentonites with HDTMA loadings exceeding CEC value should be regarded as very promising adsorbents for the remediation of Tc-99 polluted waters.
PB  - Elsevier
T2  - Applied Clay Science
T1  - Removal of Tc-99(VII) by organo-modified bentonite
VL  - 95
SP  - 294
EP  - 302
DO  - 10.1016/j.clay.2014.04.027
ER  - 

@article{
author = "Milutinović Nikolić, Aleksandra and Maksin, Danijela and Jović-Jovičić, Nataša and Mirkovic, M. and Stanković, Dragana and Mojović, Zorica and Banković, Predrag",
year = "2014",
abstract = "(99)Technetium is one of the largest components of nuclear waste material. In aqueous solutions Tc-99 is present as the pertechnetate oxoanion, (TcO4-)-Tc-99, which is highly soluble and mobile in groundwater under oxidizing conditions, thus posing a major environmental concern. In this study, a series of organo-modified bentonite clay samples was tested as adsorbents for the removal of radioactive (TcO4-)-Tc-99 from aqueous solution at room temperature. The influence of the hexadecyl trimethylammonium (HDTMA)/bentonite ratio on the adsorption ability of the organobentonites was investigated. It was found that the adsorbent in which the exchangeable cations were only partially substituted with HDTMA showed very low affinity toward pertechnetate. On the other hand, the adsorbents in which the HDTMA loading exceeded the cation exchange capacity (CEC) value had high efficiency. The behavior of such adsorbents was best described by a Freundlich isotherm, while for the sample in which the HDTMA loading was equal to the CEC, the linear adsorption isotherm was the most appropriate. The difference in adsorption performance of several adsorbents was discussed from the point of view of the interlayer arrangement of the HDTMA. The kinetics of pertechnetate adsorption on HDTMA-bentonites was tested and analyzed using different surface reaction- and diffusion-based kinetic models. For all the investigated adsorbents, the most appropriate kinetic model was the pseudo-second-order kinetics model. The obtained adsorption capacities were and HDTMA-bentonites with HDTMA loadings exceeding CEC value should be regarded as very promising adsorbents for the remediation of Tc-99 polluted waters.",
publisher = "Elsevier",
journal = "Applied Clay Science",
title = "Removal of Tc-99(VII) by organo-modified bentonite",
volume = "95",
pages = "294-302",
doi = "10.1016/j.clay.2014.04.027"
}

Milutinović Nikolić, A., Maksin, D., Jović-Jovičić, N., Mirkovic, M., Stanković, D., Mojović, Z.,& Banković, P.. (2014). Removal of Tc-99(VII) by organo-modified bentonite. in Applied Clay Science
Elsevier., 95, 294-302.
https://doi.org/10.1016/j.clay.2014.04.027

Milutinović Nikolić A, Maksin D, Jović-Jovičić N, Mirkovic M, Stanković D, Mojović Z, Banković P. Removal of Tc-99(VII) by organo-modified bentonite. in Applied Clay Science. 2014;95:294-302.
doi:10.1016/j.clay.2014.04.027 .

Milutinović Nikolić, Aleksandra, Maksin, Danijela, Jović-Jovičić, Nataša, Mirkovic, M., Stanković, Dragana, Mojović, Zorica, Banković, Predrag, "Removal of Tc-99(VII) by organo-modified bentonite" in Applied Clay Science, 95 (2014):294-302,
https://doi.org/10.1016/j.clay.2014.04.027 . .

TY  - CONF
AU  - Pergal, Marija
AU  - Stefanović, Ivan
AU  - Ekmeščić, Bojana
AU  - Maksin, Danijela
AU  - Micić, Darko
AU  - Miladinović, Zoran
AU  - Nastasović, Aleksandra
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6478
AB  - Novel functionalized macroporous copolymers were synthesized by reaction of the
pendant epoxy groups of poly(glycidyl methacrylate)-co-poly(ethylene glycol dimethacrylate)s with 1,3-bis(3-aminopropyl)tetramethyldisiloxane (TMDS) and α,ω-diamino
propyl poly(dimethylsiloxane) (PDMS). It was found that the optimal conditions for the
synthesis of functionalized copolymers were: reaction temperature of 80 o
C, reaction time
of 10 h and a mixture of N-methyl-2-pyrrolidone/toluene (1/3 v/v) as the solvent. The
effects of the type of siloxanes and concentration of glycidyl methacrylate on the structure
and properties of functionalized copolymers were investigated by solid-state 13C and 29Si
NMR spectroscopy, FTIR spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). The structure of
functionalized copolymers was confirmed by solid-state NMR and FTIR spectroscopy. The
DSC results showed that the glass transition temperatures of copolymers were in the
range from 63 to 65 o
C and they slightly depend on the copolymer composition
exclusively. The thermal stability was better for copolymers functionalized with TMDS in
comparison with PDMS based copolymers. Thermal degradation of the synthesized
copolymers starts between 276 and 290 o
C. The TG curves of all copolymers display two
stages of degradation at 308-368 o
C (stage 1) and 395-430 o
C (stage 2) which are associated with the ester and siloxane bonds. The results indicated that the thermal stability
depends on the type of siloxanes and copolymer composition. The surface and crosssection morphology was investigated by SEM and the porous copolymer beads were
confirmed by SEM analysis. SEM studies with energy dispersive X-ray mapping revealed
that siloxanes migrate to the surface of samples due to their low surface energy. By
varying the structure of siloxanes and copolymer composition, functionalized copolymers
can be designed and synthesized with diverse physical properties for different purposes.
PB  - Belgrade : Serbian Chemical Society
C3  - 8th International Conference of the Chemical Societies of the South-East European Countries (ICOSEC 8), June 27-29, 2013, Belgrade, Serbia
T1  - Study on preparation and properties of novel functionalized polyester copolymers based on siloxanes
SP  - 145
EP  - 145
UR  - https://hdl.handle.net/21.15107/rcub_cer_6478
ER  - 

@conference{
author = "Pergal, Marija and Stefanović, Ivan and Ekmeščić, Bojana and Maksin, Danijela and Micić, Darko and Miladinović, Zoran and Nastasović, Aleksandra",
year = "2013",
abstract = "Novel functionalized macroporous copolymers were synthesized by reaction of the
pendant epoxy groups of poly(glycidyl methacrylate)-co-poly(ethylene glycol dimethacrylate)s with 1,3-bis(3-aminopropyl)tetramethyldisiloxane (TMDS) and α,ω-diamino
propyl poly(dimethylsiloxane) (PDMS). It was found that the optimal conditions for the
synthesis of functionalized copolymers were: reaction temperature of 80 o
C, reaction time
of 10 h and a mixture of N-methyl-2-pyrrolidone/toluene (1/3 v/v) as the solvent. The
effects of the type of siloxanes and concentration of glycidyl methacrylate on the structure
and properties of functionalized copolymers were investigated by solid-state 13C and 29Si
NMR spectroscopy, FTIR spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). The structure of
functionalized copolymers was confirmed by solid-state NMR and FTIR spectroscopy. The
DSC results showed that the glass transition temperatures of copolymers were in the
range from 63 to 65 o
C and they slightly depend on the copolymer composition
exclusively. The thermal stability was better for copolymers functionalized with TMDS in
comparison with PDMS based copolymers. Thermal degradation of the synthesized
copolymers starts between 276 and 290 o
C. The TG curves of all copolymers display two
stages of degradation at 308-368 o
C (stage 1) and 395-430 o
C (stage 2) which are associated with the ester and siloxane bonds. The results indicated that the thermal stability
depends on the type of siloxanes and copolymer composition. The surface and crosssection morphology was investigated by SEM and the porous copolymer beads were
confirmed by SEM analysis. SEM studies with energy dispersive X-ray mapping revealed
that siloxanes migrate to the surface of samples due to their low surface energy. By
varying the structure of siloxanes and copolymer composition, functionalized copolymers
can be designed and synthesized with diverse physical properties for different purposes.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "8th International Conference of the Chemical Societies of the South-East European Countries (ICOSEC 8), June 27-29, 2013, Belgrade, Serbia",
title = "Study on preparation and properties of novel functionalized polyester copolymers based on siloxanes",
pages = "145-145",
url = "https://hdl.handle.net/21.15107/rcub_cer_6478"
}

Pergal, M., Stefanović, I., Ekmeščić, B., Maksin, D., Micić, D., Miladinović, Z.,& Nastasović, A.. (2013). Study on preparation and properties of novel functionalized polyester copolymers based on siloxanes. in 8th International Conference of the Chemical Societies of the South-East European Countries (ICOSEC 8), June 27-29, 2013, Belgrade, Serbia
Belgrade : Serbian Chemical Society., 145-145.
https://hdl.handle.net/21.15107/rcub_cer_6478

Pergal M, Stefanović I, Ekmeščić B, Maksin D, Micić D, Miladinović Z, Nastasović A. Study on preparation and properties of novel functionalized polyester copolymers based on siloxanes. in 8th International Conference of the Chemical Societies of the South-East European Countries (ICOSEC 8), June 27-29, 2013, Belgrade, Serbia. 2013;:145-145.
https://hdl.handle.net/21.15107/rcub_cer_6478 .

Pergal, Marija, Stefanović, Ivan, Ekmeščić, Bojana, Maksin, Danijela, Micić, Darko, Miladinović, Zoran, Nastasović, Aleksandra, "Study on preparation and properties of novel functionalized polyester copolymers based on siloxanes" in 8th International Conference of the Chemical Societies of the South-East European Countries (ICOSEC 8), June 27-29, 2013, Belgrade, Serbia (2013):145-145,
https://hdl.handle.net/21.15107/rcub_cer_6478 .

TY  - CONF
AU  - Sandić, Zvjezdana
AU  - Ekmeščić, Bojana
AU  - Maksin, Danijela
AU  - Stefanović, Ivan
AU  - Marković, Dana
AU  - Marković, Jelena P.
AU  - Pergal, Marija
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6480
AB  - In this study, macroporous glycidyl methacrylate based copolymers with different crosslinking degree and porosity parameters, functionalized with hexamethylene diamine were tested for Cr(VI) sorption.
PB  - Banja Luka : Academy of Sciences and Arts of the Republic of Srpska
C3  - Sixth international scientific conference Contemporary Materials 2013
T1  - Analysis of hexavalent chromium sorption on macroporous copolymer grafted with hexamethylene diamine
SP  - 92
EP  - 93
UR  - https://hdl.handle.net/21.15107/rcub_cer_6480
ER  - 

@conference{
author = "Sandić, Zvjezdana and Ekmeščić, Bojana and Maksin, Danijela and Stefanović, Ivan and Marković, Dana and Marković, Jelena P. and Pergal, Marija",
year = "2013",
abstract = "In this study, macroporous glycidyl methacrylate based copolymers with different crosslinking degree and porosity parameters, functionalized with hexamethylene diamine were tested for Cr(VI) sorption.",
publisher = "Banja Luka : Academy of Sciences and Arts of the Republic of Srpska",
journal = "Sixth international scientific conference Contemporary Materials 2013",
title = "Analysis of hexavalent chromium sorption on macroporous copolymer grafted with hexamethylene diamine",
pages = "92-93",
url = "https://hdl.handle.net/21.15107/rcub_cer_6480"
}

Sandić, Z., Ekmeščić, B., Maksin, D., Stefanović, I., Marković, D., Marković, J. P.,& Pergal, M.. (2013). Analysis of hexavalent chromium sorption on macroporous copolymer grafted with hexamethylene diamine. in Sixth international scientific conference Contemporary Materials 2013
Banja Luka : Academy of Sciences and Arts of the Republic of Srpska., 92-93.
https://hdl.handle.net/21.15107/rcub_cer_6480

Sandić Z, Ekmeščić B, Maksin D, Stefanović I, Marković D, Marković JP, Pergal M. Analysis of hexavalent chromium sorption on macroporous copolymer grafted with hexamethylene diamine. in Sixth international scientific conference Contemporary Materials 2013. 2013;:92-93.
https://hdl.handle.net/21.15107/rcub_cer_6480 .

Sandić, Zvjezdana, Ekmeščić, Bojana, Maksin, Danijela, Stefanović, Ivan, Marković, Dana, Marković, Jelena P., Pergal, Marija, "Analysis of hexavalent chromium sorption on macroporous copolymer grafted with hexamethylene diamine" in Sixth international scientific conference Contemporary Materials 2013 (2013):92-93,
https://hdl.handle.net/21.15107/rcub_cer_6480 .

TY  - CONF
AU  - Ekmeščić, Bojana
AU  - Pergal, Marija
AU  - Stefanović, Ivan
AU  - Maksin, Danijela
AU  - Ostojić, Sanja
AU  - Vuković, Zorica
AU  - Nastasović, Aleksandra
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6481
AB  - Macroporous copolymers of glycidyl methacrylate and ethylene glycol di-methacrylate were functionalized with hexamethylene diamine, 1,3-bis (3-aminopropyl) tetramethyldisiloxane and α,ω-diamino propyl poly(dimethylsiloxane). The samples were characterized by Fourier transform infrared spectroscopy (ATR-FTIR), mercury porosimetry, scanning electron microscopy (SEM) with energy dispersive X-ray analysis (EDX), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Fuctionalization significantly alters porosity parameters, mechanism of thermal degradation and increases thermal stability. The sample functionalized with disiloxane exhibited better thermal stability comparing with the initial and other functionalized samples.
PB  - Banja Luka : Academy of Sciences and Arts of the Republic of Srpska
C3  - Sixth international scientific conference Contemporary Materials 2013
T1  - Structural, thermal and morphological characterization of functionalized macroporous copolymers
SP  - 81
EP  - 82
UR  - https://hdl.handle.net/21.15107/rcub_cer_6481
ER  - 

@conference{
author = "Ekmeščić, Bojana and Pergal, Marija and Stefanović, Ivan and Maksin, Danijela and Ostojić, Sanja and Vuković, Zorica and Nastasović, Aleksandra",
year = "2013",
abstract = "Macroporous copolymers of glycidyl methacrylate and ethylene glycol di-methacrylate were functionalized with hexamethylene diamine, 1,3-bis (3-aminopropyl) tetramethyldisiloxane and α,ω-diamino propyl poly(dimethylsiloxane). The samples were characterized by Fourier transform infrared spectroscopy (ATR-FTIR), mercury porosimetry, scanning electron microscopy (SEM) with energy dispersive X-ray analysis (EDX), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Fuctionalization significantly alters porosity parameters, mechanism of thermal degradation and increases thermal stability. The sample functionalized with disiloxane exhibited better thermal stability comparing with the initial and other functionalized samples.",
publisher = "Banja Luka : Academy of Sciences and Arts of the Republic of Srpska",
journal = "Sixth international scientific conference Contemporary Materials 2013",
title = "Structural, thermal and morphological characterization of functionalized macroporous copolymers",
pages = "81-82",
url = "https://hdl.handle.net/21.15107/rcub_cer_6481"
}

Ekmeščić, B., Pergal, M., Stefanović, I., Maksin, D., Ostojić, S., Vuković, Z.,& Nastasović, A.. (2013). Structural, thermal and morphological characterization of functionalized macroporous copolymers. in Sixth international scientific conference Contemporary Materials 2013
Banja Luka : Academy of Sciences and Arts of the Republic of Srpska., 81-82.
https://hdl.handle.net/21.15107/rcub_cer_6481

Ekmeščić B, Pergal M, Stefanović I, Maksin D, Ostojić S, Vuković Z, Nastasović A. Structural, thermal and morphological characterization of functionalized macroporous copolymers. in Sixth international scientific conference Contemporary Materials 2013. 2013;:81-82.
https://hdl.handle.net/21.15107/rcub_cer_6481 .

Ekmeščić, Bojana, Pergal, Marija, Stefanović, Ivan, Maksin, Danijela, Ostojić, Sanja, Vuković, Zorica, Nastasović, Aleksandra, "Structural, thermal and morphological characterization of functionalized macroporous copolymers" in Sixth international scientific conference Contemporary Materials 2013 (2013):81-82,
https://hdl.handle.net/21.15107/rcub_cer_6481 .

TY  - JOUR
AU  - Momčilović, Milan
AU  - Maksin, Danijela
AU  - Nastasović, Aleksandra
AU  - Onjia, Antonije E.
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1167
UR  - http://www.tf.ni.ac.rs/o-fakultetu/casopis-savremene-tehnologije/casopis-sadrzaj/2-uncategorised/100-sveska2vol2
AB  - Pine cones of European Black pine are utilized as a precursor for obtaining powdered activated carbon. The concentrated phosphoric acid was used as an activating agent. A detailed study of the imidacloprid adsorption onto the obtained material was conducted. In this paper, the adsorption kinetics, the conditions of establishing equilibrium, the impact of the adsorbent mass, and pH of solutions was analyzed. It was concluded that in a short period 90 % of pesticide is removed from model solutions under the applied conditions, while the removal degree is even higher for lower initial concentrations and higher adsorbent masses. It was also elucidated that this pesticide is equally well adsorbed in both acid and basic solutions.
AB  - Šišarka crnog evropskog bora je korišćena kao prekursor za dobijanje praškastog aktivnog uglja. Kao aktivirajuće sredstvo u pripremi je upotrebljena koncentrovana fosforna kiselina. Izvršena je detaljna studija adsorpcije pesticida imidakloprida na sintetizovanom materijalu. U radu je izvršeno ispitivanje kinetike adsorpcije, uslova uspostavljanja ravnoteže procesa, uticaja mase adsorbensa, kao i pH rastvora. Utvrđeno je da se za relativno kratko vreme vrši uklanjanje oko 90 % pesticida iz modalnog rastvora pri ispitivanim uslovima, dok je stepen uklanjanja još veći za niže polazne koncentracije i više mase adsorbensa. Ispitivanjem uticaja pH rastvora utvrđeno je da se pesticid podjednako dobro adsorbuje u kiseloj i u baznoj sredini.
T2  - Savremene tehnologije
T1  - The adsorption of imidacloprid onto activated carbon obtained by carbonization of pine cones
T1  - Adsorpcija imidakloprida na aktivnom uglju dobijenom karbonizacijom borove šišarke
VL  - 2
IS  - 2
SP  - 45
EP  - 49
UR  - https://hdl.handle.net/21.15107/rcub_cer_1167
ER  - 

@article{
author = "Momčilović, Milan and Maksin, Danijela and Nastasović, Aleksandra and Onjia, Antonije E.",
year = "2013",
abstract = "Pine cones of European Black pine are utilized as a precursor for obtaining powdered activated carbon. The concentrated phosphoric acid was used as an activating agent. A detailed study of the imidacloprid adsorption onto the obtained material was conducted. In this paper, the adsorption kinetics, the conditions of establishing equilibrium, the impact of the adsorbent mass, and pH of solutions was analyzed. It was concluded that in a short period 90 % of pesticide is removed from model solutions under the applied conditions, while the removal degree is even higher for lower initial concentrations and higher adsorbent masses. It was also elucidated that this pesticide is equally well adsorbed in both acid and basic solutions., Šišarka crnog evropskog bora je korišćena kao prekursor za dobijanje praškastog aktivnog uglja. Kao aktivirajuće sredstvo u pripremi je upotrebljena koncentrovana fosforna kiselina. Izvršena je detaljna studija adsorpcije pesticida imidakloprida na sintetizovanom materijalu. U radu je izvršeno ispitivanje kinetike adsorpcije, uslova uspostavljanja ravnoteže procesa, uticaja mase adsorbensa, kao i pH rastvora. Utvrđeno je da se za relativno kratko vreme vrši uklanjanje oko 90 % pesticida iz modalnog rastvora pri ispitivanim uslovima, dok je stepen uklanjanja još veći za niže polazne koncentracije i više mase adsorbensa. Ispitivanjem uticaja pH rastvora utvrđeno je da se pesticid podjednako dobro adsorbuje u kiseloj i u baznoj sredini.",
journal = "Savremene tehnologije",
title = "The adsorption of imidacloprid onto activated carbon obtained by carbonization of pine cones, Adsorpcija imidakloprida na aktivnom uglju dobijenom karbonizacijom borove šišarke",
volume = "2",
number = "2",
pages = "45-49",
url = "https://hdl.handle.net/21.15107/rcub_cer_1167"
}

Momčilović, M., Maksin, D., Nastasović, A.,& Onjia, A. E.. (2013). The adsorption of imidacloprid onto activated carbon obtained by carbonization of pine cones. in Savremene tehnologije, 2(2), 45-49.
https://hdl.handle.net/21.15107/rcub_cer_1167

Momčilović M, Maksin D, Nastasović A, Onjia AE. The adsorption of imidacloprid onto activated carbon obtained by carbonization of pine cones. in Savremene tehnologije. 2013;2(2):45-49.
https://hdl.handle.net/21.15107/rcub_cer_1167 .

Momčilović, Milan, Maksin, Danijela, Nastasović, Aleksandra, Onjia, Antonije E., "The adsorption of imidacloprid onto activated carbon obtained by carbonization of pine cones" in Savremene tehnologije, 2, no. 2 (2013):45-49,
https://hdl.handle.net/21.15107/rcub_cer_1167 .

TY  - CONF
AU  - Žunić, Marija
AU  - Vuković, Zorica
AU  - Lončarević, Davor
AU  - Maksin, Danijela
AU  - Sandić, Zvjezdana
AU  - Nastasović, Aleksandra
AU  - Milutinović Nikolić, Aleksandra
AU  - Jovanović, Dušan
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6705
AB  - In situ polymerization was used to synthesize poly(glycidyl methacrylate-co-ethylene glycol 
dimethacrylate)/bentonite nanocomposites, by adding various amounts of raw or acid modified 
bentonite clays of different origin (Bogovina, Serbia and Wyoming, USA) in previously optimized 
reaction mixture for synthesis of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene 
glycol dimethacrylate) copolymer. Samples were characterized by Attenuated Total Reflectance 
(ATR) Infrared (IR) spectroscopy, Scanning Electron Microscopy (SEM), Transmission Electron 
Microscopy (TEM), thermogravimetric (TG) and elemental and textural analysis (mercury intrusion 
porosimetry and low temperature physisorption of nitrogen).
PB  - Serbian Ceramic Society
C3  - Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application I, May 10-11, Belgrade, Serbia
T1  - Structure-property relationships in poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate)/clay nanocomposites
SP  - 21
EP  - 21
UR  - https://hdl.handle.net/21.15107/rcub_cer_6705
ER  - 

@conference{
author = "Žunić, Marija and Vuković, Zorica and Lončarević, Davor and Maksin, Danijela and Sandić, Zvjezdana and Nastasović, Aleksandra and Milutinović Nikolić, Aleksandra and Jovanović, Dušan",
year = "2012",
abstract = "In situ polymerization was used to synthesize poly(glycidyl methacrylate-co-ethylene glycol 
dimethacrylate)/bentonite nanocomposites, by adding various amounts of raw or acid modified 
bentonite clays of different origin (Bogovina, Serbia and Wyoming, USA) in previously optimized 
reaction mixture for synthesis of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene 
glycol dimethacrylate) copolymer. Samples were characterized by Attenuated Total Reflectance 
(ATR) Infrared (IR) spectroscopy, Scanning Electron Microscopy (SEM), Transmission Electron 
Microscopy (TEM), thermogravimetric (TG) and elemental and textural analysis (mercury intrusion 
porosimetry and low temperature physisorption of nitrogen).",
publisher = "Serbian Ceramic Society",
journal = "Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application I, May 10-11, Belgrade, Serbia",
title = "Structure-property relationships in poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate)/clay nanocomposites",
pages = "21-21",
url = "https://hdl.handle.net/21.15107/rcub_cer_6705"
}

Žunić, M., Vuković, Z., Lončarević, D., Maksin, D., Sandić, Z., Nastasović, A., Milutinović Nikolić, A.,& Jovanović, D.. (2012). Structure-property relationships in poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate)/clay nanocomposites. in Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application I, May 10-11, Belgrade, Serbia
Serbian Ceramic Society., 21-21.
https://hdl.handle.net/21.15107/rcub_cer_6705

Žunić M, Vuković Z, Lončarević D, Maksin D, Sandić Z, Nastasović A, Milutinović Nikolić A, Jovanović D. Structure-property relationships in poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate)/clay nanocomposites. in Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application I, May 10-11, Belgrade, Serbia. 2012;:21-21.
https://hdl.handle.net/21.15107/rcub_cer_6705 .

Žunić, Marija, Vuković, Zorica, Lončarević, Davor, Maksin, Danijela, Sandić, Zvjezdana, Nastasović, Aleksandra, Milutinović Nikolić, Aleksandra, Jovanović, Dušan, "Structure-property relationships in poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate)/clay nanocomposites" in Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application I, May 10-11, Belgrade, Serbia (2012):21-21,
https://hdl.handle.net/21.15107/rcub_cer_6705 .

TY  - CONF
AU  - Žunić, Marija
AU  - Marinović, Sanja
AU  - Milutinović Nikolić, Aleksandra
AU  - Vuković, Zorica
AU  - Maksin, Danijela
AU  - Nastasović, Aleksandra
AU  - Jovanović, Dušan
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6339
AB  - Crosslinked macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and
copolymer nanocomposite with acid modified bentonite clay were prepared by radical suspension
copolymerization and functionalized with diethylene triamine. Both samples were characterized by
elemental and textural analysis (mercury intrusion porosimetry). The incorporation of the acid
modified clay into the copolymer matrix lead to the increase of porosity, total pore volume and
particularly specific surface area, while the process only slightly altered the acid–base properties.
The obtained amino-functionalized nanocomposite was tested as 4-nitrophenol (4-NP) sorbent. The
influence of pH, sorption time and initial 4-nitrophenol (4-NP) concentration on sorption efficiency
of synthesized samples was studied. Since the pHPZC of the functionalized copolymer and the
functionalized composite was the same, and the amount of amino groups was slightly higher for the
copolymer, the enhanced sorption properties can be ascribed to improved textural properties of
composite, particularly the increased specific surface area. The isotherm data were best fitted with
Langmuir model, while the sorption dynamics obeyed the pseudo-second-order kinetic model. The
results in this study show great potential for designing functionalized macroporous glycidyl
methacrylate copolymers and their acid modified bentonite composites as promising sorbents in 4-
nitrophenol removal from wastewaters.
PB  - Serbian Ceramic Society
C3  - Program and the Book of Abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application I, May 10-11th, 2012, Belgrade, Serbia
T1  - Amino-modified poly(glycidyl methacrylate) based nanocomposites: textural properties and application
SP  - 36
EP  - 36
UR  - https://hdl.handle.net/21.15107/rcub_cer_6339
ER  - 

@conference{
author = "Žunić, Marija and Marinović, Sanja and Milutinović Nikolić, Aleksandra and Vuković, Zorica and Maksin, Danijela and Nastasović, Aleksandra and Jovanović, Dušan",
year = "2012",
abstract = "Crosslinked macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and
copolymer nanocomposite with acid modified bentonite clay were prepared by radical suspension
copolymerization and functionalized with diethylene triamine. Both samples were characterized by
elemental and textural analysis (mercury intrusion porosimetry). The incorporation of the acid
modified clay into the copolymer matrix lead to the increase of porosity, total pore volume and
particularly specific surface area, while the process only slightly altered the acid–base properties.
The obtained amino-functionalized nanocomposite was tested as 4-nitrophenol (4-NP) sorbent. The
influence of pH, sorption time and initial 4-nitrophenol (4-NP) concentration on sorption efficiency
of synthesized samples was studied. Since the pHPZC of the functionalized copolymer and the
functionalized composite was the same, and the amount of amino groups was slightly higher for the
copolymer, the enhanced sorption properties can be ascribed to improved textural properties of
composite, particularly the increased specific surface area. The isotherm data were best fitted with
Langmuir model, while the sorption dynamics obeyed the pseudo-second-order kinetic model. The
results in this study show great potential for designing functionalized macroporous glycidyl
methacrylate copolymers and their acid modified bentonite composites as promising sorbents in 4-
nitrophenol removal from wastewaters.",
publisher = "Serbian Ceramic Society",
journal = "Program and the Book of Abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application I, May 10-11th, 2012, Belgrade, Serbia",
title = "Amino-modified poly(glycidyl methacrylate) based nanocomposites: textural properties and application",
pages = "36-36",
url = "https://hdl.handle.net/21.15107/rcub_cer_6339"
}

Žunić, M., Marinović, S., Milutinović Nikolić, A., Vuković, Z., Maksin, D., Nastasović, A.,& Jovanović, D.. (2012). Amino-modified poly(glycidyl methacrylate) based nanocomposites: textural properties and application. in Program and the Book of Abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application I, May 10-11th, 2012, Belgrade, Serbia
Serbian Ceramic Society., 36-36.
https://hdl.handle.net/21.15107/rcub_cer_6339

Žunić M, Marinović S, Milutinović Nikolić A, Vuković Z, Maksin D, Nastasović A, Jovanović D. Amino-modified poly(glycidyl methacrylate) based nanocomposites: textural properties and application. in Program and the Book of Abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application I, May 10-11th, 2012, Belgrade, Serbia. 2012;:36-36.
https://hdl.handle.net/21.15107/rcub_cer_6339 .

Žunić, Marija, Marinović, Sanja, Milutinović Nikolić, Aleksandra, Vuković, Zorica, Maksin, Danijela, Nastasović, Aleksandra, Jovanović, Dušan, "Amino-modified poly(glycidyl methacrylate) based nanocomposites: textural properties and application" in Program and the Book of Abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application I, May 10-11th, 2012, Belgrade, Serbia (2012):36-36,
https://hdl.handle.net/21.15107/rcub_cer_6339 .

TY  - JOUR
AU  - Maksin, Danijela
AU  - Nastasović, Aleksandra
AU  - Milutinović Nikolić, Aleksandra
AU  - Suručić, Ljiljana T.
AU  - Sandić, Zvjezdana P.
AU  - Hercigonja, Radmila
AU  - Onjia, Antonije E.
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1028
AB  - Two porous and one non-porous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) [abbreviated PGME] were prepared by suspension copolymerization and functionalized with diethylene triamine [abbreviated PGME-deta]. Samples were characterized by elemental analysis, mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy, and transmission electron microscopy. Kinetics of Cr(VI) sorption by PGME-deta were investigated in batch static experiments, in the temperature range 25-70 degrees C. Sorption was rapid, with the uptake capacity higher than 80% after 30 min. Sorption behavior and rate-controlling mechanisms were analyzed using five kinetic models (pseudo-first order, pseudo-second order, Elovich, intraparticle diffusion and Bangham model). Kinetic studies showed that Cr(VI) adsorption adhered to the pseudo-second-order model, with definite influence of pore diffusion. Equilibrium data was tested with Langmuir, Freundlich and Tempkin adsorption isotherm models. Langmuir model was the most suitable indicating homogeneous distribution of active sites on PGME-deta and monolayer sorption. The maximum adsorption capacity from the Langmuir model, Q(max),at pH 1.8 and 25 degrees C was 143 mg g(-1) for PGME2-deta (sample with the highest amino group concentration) while at 70 degrees C Q(max) reached the high value of 198 mg g(-1). Thermodynamic parameters revealed spontaneous and endothermic nature of Cr(VI) adsorption onto PGME-deta.
PB  - Elsevier
T2  - Journal of Hazardous Materials
T1  - Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers
VL  - 209
SP  - 99
EP  - 110
DO  - 10.1016/j.jhazmat.2011.12.079
ER  - 

@article{
author = "Maksin, Danijela and Nastasović, Aleksandra and Milutinović Nikolić, Aleksandra and Suručić, Ljiljana T. and Sandić, Zvjezdana P. and Hercigonja, Radmila and Onjia, Antonije E.",
year = "2012",
abstract = "Two porous and one non-porous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) [abbreviated PGME] were prepared by suspension copolymerization and functionalized with diethylene triamine [abbreviated PGME-deta]. Samples were characterized by elemental analysis, mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy, and transmission electron microscopy. Kinetics of Cr(VI) sorption by PGME-deta were investigated in batch static experiments, in the temperature range 25-70 degrees C. Sorption was rapid, with the uptake capacity higher than 80% after 30 min. Sorption behavior and rate-controlling mechanisms were analyzed using five kinetic models (pseudo-first order, pseudo-second order, Elovich, intraparticle diffusion and Bangham model). Kinetic studies showed that Cr(VI) adsorption adhered to the pseudo-second-order model, with definite influence of pore diffusion. Equilibrium data was tested with Langmuir, Freundlich and Tempkin adsorption isotherm models. Langmuir model was the most suitable indicating homogeneous distribution of active sites on PGME-deta and monolayer sorption. The maximum adsorption capacity from the Langmuir model, Q(max),at pH 1.8 and 25 degrees C was 143 mg g(-1) for PGME2-deta (sample with the highest amino group concentration) while at 70 degrees C Q(max) reached the high value of 198 mg g(-1). Thermodynamic parameters revealed spontaneous and endothermic nature of Cr(VI) adsorption onto PGME-deta.",
publisher = "Elsevier",
journal = "Journal of Hazardous Materials",
title = "Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers",
volume = "209",
pages = "99-110",
doi = "10.1016/j.jhazmat.2011.12.079"
}

Maksin, D., Nastasović, A., Milutinović Nikolić, A., Suručić, L. T., Sandić, Z. P., Hercigonja, R.,& Onjia, A. E.. (2012). Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers. in Journal of Hazardous Materials
Elsevier., 209, 99-110.
https://doi.org/10.1016/j.jhazmat.2011.12.079

Maksin D, Nastasović A, Milutinović Nikolić A, Suručić LT, Sandić ZP, Hercigonja R, Onjia AE. Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers. in Journal of Hazardous Materials. 2012;209:99-110.
doi:10.1016/j.jhazmat.2011.12.079 .

Maksin, Danijela, Nastasović, Aleksandra, Milutinović Nikolić, Aleksandra, Suručić, Ljiljana T., Sandić, Zvjezdana P., Hercigonja, Radmila, Onjia, Antonije E., "Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers" in Journal of Hazardous Materials, 209 (2012):99-110,
https://doi.org/10.1016/j.jhazmat.2011.12.079 . .

TY  - CONF
AU  - Žunić, Marija
AU  - Vuković, Zorica
AU  - Danijela, Maksin
AU  - Marinović, Sanja
AU  - Nastasović, Aleksandra
AU  - Milutinović Nikolić, Aleksandra
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6316
AB  - Macroporous crosslinked copolymer, poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and its nanocomposites with acid modified montmorillonite (WA) were synthesized by radical suspension copolymerization. Nanocomposites were obtained by introducing various amounts of WA into the reaction system. Textural properties of synthesized samples were analyzed by mercury intrusion porosimetry. The synthesized nanocomposites have significantly higher specific surface area in comparison to the copolymer. Total pore volume and the most dominant pore diameter decrease with incorporation of acid modified montmorillonite in copolymer matrix.
PB  - Society of Physical Chemists of Serbia
C3  - Proceedings - 11th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2012, September 24-28 2012, Belgrade
T1  - Textural properties of macroporous acid modified montmorillonite nanocomposites
VL  - I
SP  - 462
EP  - 464
UR  - https://hdl.handle.net/21.15107/rcub_cer_6316
ER  - 

@conference{
author = "Žunić, Marija and Vuković, Zorica and Danijela, Maksin and Marinović, Sanja and Nastasović, Aleksandra and Milutinović Nikolić, Aleksandra",
year = "2012",
abstract = "Macroporous crosslinked copolymer, poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and its nanocomposites with acid modified montmorillonite (WA) were synthesized by radical suspension copolymerization. Nanocomposites were obtained by introducing various amounts of WA into the reaction system. Textural properties of synthesized samples were analyzed by mercury intrusion porosimetry. The synthesized nanocomposites have significantly higher specific surface area in comparison to the copolymer. Total pore volume and the most dominant pore diameter decrease with incorporation of acid modified montmorillonite in copolymer matrix.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Proceedings - 11th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2012, September 24-28 2012, Belgrade",
title = "Textural properties of macroporous acid modified montmorillonite nanocomposites",
volume = "I",
pages = "462-464",
url = "https://hdl.handle.net/21.15107/rcub_cer_6316"
}

Žunić, M., Vuković, Z., Danijela, M., Marinović, S., Nastasović, A.,& Milutinović Nikolić, A.. (2012). Textural properties of macroporous acid modified montmorillonite nanocomposites. in Proceedings - 11th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2012, September 24-28 2012, Belgrade
Society of Physical Chemists of Serbia., I, 462-464.
https://hdl.handle.net/21.15107/rcub_cer_6316

Žunić M, Vuković Z, Danijela M, Marinović S, Nastasović A, Milutinović Nikolić A. Textural properties of macroporous acid modified montmorillonite nanocomposites. in Proceedings - 11th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2012, September 24-28 2012, Belgrade. 2012;I:462-464.
https://hdl.handle.net/21.15107/rcub_cer_6316 .

Žunić, Marija, Vuković, Zorica, Danijela, Maksin, Marinović, Sanja, Nastasović, Aleksandra, Milutinović Nikolić, Aleksandra, "Textural properties of macroporous acid modified montmorillonite nanocomposites" in Proceedings - 11th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2012, September 24-28 2012, Belgrade, I (2012):462-464,
https://hdl.handle.net/21.15107/rcub_cer_6316 .

TY  - JOUR
AU  - Maksin, Danijela
AU  - Kljajević, Slađana O.
AU  - Đolić, Maja B.
AU  - Marković, Jelena P.
AU  - Ekmeščić, Bojana
AU  - Onjia, Antonije E.
AU  - Nastasović, Aleksandra
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1044
AB  - Commercial macroporous poly(4-vinylpyridine-co-divinylbenzene) [P4VPD], known as Reillex-425, was characterized by mercury porosimetry, nitrogen physisorption, Fourier transformed infrared (FTIR) spectroscopy and elemental analysis. Sorption rates of P4VPD for Cu(II), Co(II) and Cr(VI) ions were determined in static non-competitive experiments, at room temperature (298 K). Rapid sorption was observed, especially for Co(II), with half time, t1/2, of 1.5 min and high experimental maximal capacity, Qmax, of 3.08 mmol g-1. Four kinetic models (pseudo-first and pseudo-second order model, intraparticle diffusion and Boyd model) were used for analyzing metal sorption by P4VPD. Metal ions sorption is well represented by the pseudo-second-order model, with definite influence of pore and film diffusion on sorption rates.
AB  - Komercijalni makropozni poli(4-vinilpiridin-co-divinilbenzen) [P4VPD], Reillex- 425, bez dodatne funkcionalizacije korišćen je za ispitivanje mogućnosti sorpcije teških metala iz vodenih rastvora. Na taj način su izbegnuti neki problemi do kojih može doći prilikom uvođenja funkcionalnih grupa selektivnih za određene jone metala u polimerne sorbente, kao što su nepoželjne sporedne reakcije i promena porozne strukture. P4VPD je okarakterisan živinom porozimetrijom, određivanjem adsorpciono-desorpcionih niskotemperaturnih izotermi azota, infracrvenom spektroskopijom (FTIR) i elementalnom analizom. U statičkim eksperimentima su određene brzine sorpcije Cu(II), Co(II) i Cr(VI) jona pomoću P4VPD pri nekompetitivnim uslovima i pri sobnoj temperaturi (298 K). Zapažena je brza sorpcija ispitivanih jona, naročito u slučaju Co(II), pri čemu su zapažene vrednosti poluvremena sorpcije, t1/2, od 1,5 min i visoka vrednost maksimalnog kapaciteta sorpcije, Qmax, od 3,08 mmol g-1 (181 mg g-1). Prilikom analiziranja sorpcije ispitivanih metala pomoću P4VPD korišćena su četiri kinetička modela (model pseudo-prvog i pseudo-drugog reda, model difuzije unutar čestica i Bojdov model). Pokazalo se da sorpciju jona metala najbolje opisuje model pseudo-drugog reda, pošto je za ovaj model dobijeno odlično slaganje eksperimentalnih i teorijskih vrednosti kapaciteta sorpcije, kao i vrednosti R2 ≥ 0,99. Analiza eksperimentalnih rezultata pomoću modela difuzije unutar čestica pokazala je da difuzija kroz pore nije jedini stupanj koji određuje brzinu sorpcije i ukazala na delimičan uticaj graničnog sloja na sorpciju teških metala pomoću poroznog kopolimera.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Kinetic modeling of heavy metal sorption by vinyl pyridine based copolymer
T1  - Kinetičko modelovanje sorpcije teških metala kopolimerom sa osnovom vinil piridina
VL  - 66
IS  - 6
SP  - 795
EP  - 804
DO  - 10.2298/HEMIND121002112M
ER  - 

@article{
author = "Maksin, Danijela and Kljajević, Slađana O. and Đolić, Maja B. and Marković, Jelena P. and Ekmeščić, Bojana and Onjia, Antonije E. and Nastasović, Aleksandra",
year = "2012",
abstract = "Commercial macroporous poly(4-vinylpyridine-co-divinylbenzene) [P4VPD], known as Reillex-425, was characterized by mercury porosimetry, nitrogen physisorption, Fourier transformed infrared (FTIR) spectroscopy and elemental analysis. Sorption rates of P4VPD for Cu(II), Co(II) and Cr(VI) ions were determined in static non-competitive experiments, at room temperature (298 K). Rapid sorption was observed, especially for Co(II), with half time, t1/2, of 1.5 min and high experimental maximal capacity, Qmax, of 3.08 mmol g-1. Four kinetic models (pseudo-first and pseudo-second order model, intraparticle diffusion and Boyd model) were used for analyzing metal sorption by P4VPD. Metal ions sorption is well represented by the pseudo-second-order model, with definite influence of pore and film diffusion on sorption rates., Komercijalni makropozni poli(4-vinilpiridin-co-divinilbenzen) [P4VPD], Reillex- 425, bez dodatne funkcionalizacije korišćen je za ispitivanje mogućnosti sorpcije teških metala iz vodenih rastvora. Na taj način su izbegnuti neki problemi do kojih može doći prilikom uvođenja funkcionalnih grupa selektivnih za određene jone metala u polimerne sorbente, kao što su nepoželjne sporedne reakcije i promena porozne strukture. P4VPD je okarakterisan živinom porozimetrijom, određivanjem adsorpciono-desorpcionih niskotemperaturnih izotermi azota, infracrvenom spektroskopijom (FTIR) i elementalnom analizom. U statičkim eksperimentima su određene brzine sorpcije Cu(II), Co(II) i Cr(VI) jona pomoću P4VPD pri nekompetitivnim uslovima i pri sobnoj temperaturi (298 K). Zapažena je brza sorpcija ispitivanih jona, naročito u slučaju Co(II), pri čemu su zapažene vrednosti poluvremena sorpcije, t1/2, od 1,5 min i visoka vrednost maksimalnog kapaciteta sorpcije, Qmax, od 3,08 mmol g-1 (181 mg g-1). Prilikom analiziranja sorpcije ispitivanih metala pomoću P4VPD korišćena su četiri kinetička modela (model pseudo-prvog i pseudo-drugog reda, model difuzije unutar čestica i Bojdov model). Pokazalo se da sorpciju jona metala najbolje opisuje model pseudo-drugog reda, pošto je za ovaj model dobijeno odlično slaganje eksperimentalnih i teorijskih vrednosti kapaciteta sorpcije, kao i vrednosti R2 ≥ 0,99. Analiza eksperimentalnih rezultata pomoću modela difuzije unutar čestica pokazala je da difuzija kroz pore nije jedini stupanj koji određuje brzinu sorpcije i ukazala na delimičan uticaj graničnog sloja na sorpciju teških metala pomoću poroznog kopolimera.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Kinetic modeling of heavy metal sorption by vinyl pyridine based copolymer, Kinetičko modelovanje sorpcije teških metala kopolimerom sa osnovom vinil piridina",
volume = "66",
number = "6",
pages = "795-804",
doi = "10.2298/HEMIND121002112M"
}

Maksin, D., Kljajević, S. O., Đolić, M. B., Marković, J. P., Ekmeščić, B., Onjia, A. E.,& Nastasović, A.. (2012). Kinetic modeling of heavy metal sorption by vinyl pyridine based copolymer. in Hemijska industrija
Association of Chemical Engineers of Serbia., 66(6), 795-804.
https://doi.org/10.2298/HEMIND121002112M

Maksin D, Kljajević SO, Đolić MB, Marković JP, Ekmeščić B, Onjia AE, Nastasović A. Kinetic modeling of heavy metal sorption by vinyl pyridine based copolymer. in Hemijska industrija. 2012;66(6):795-804.
doi:10.2298/HEMIND121002112M .

Maksin, Danijela, Kljajević, Slađana O., Đolić, Maja B., Marković, Jelena P., Ekmeščić, Bojana, Onjia, Antonije E., Nastasović, Aleksandra, "Kinetic modeling of heavy metal sorption by vinyl pyridine based copolymer" in Hemijska industrija, 66, no. 6 (2012):795-804,
https://doi.org/10.2298/HEMIND121002112M . .

TY  - JOUR
AU  - Hercigonja, Radmila
AU  - Maksin, Danijela
AU  - Nastasović, Aleksandra
AU  - Trifunović, Snežana
AU  - Glodic, Pavle B.
AU  - Onjia, Antonije E.
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1082
AB  - The possibility of sorption of technetium-99 in the form of pertechnetate anion (TcO(4)(-)) and the sorption kinetics for removing TcO(4)(-) from aqueous solution by chelating polymers based on glycidyl methacrylate (GMA) were investigated. Two samples of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (PGME), with different amount of the crosslinker (ethylene glycol dimethacrylate, EGDMA), were synthesized by suspension copolymerization and functionalized with diethylene triamine (deta). We propose that nonspecific sorption of pertechnetate anion via electrostatic interactions takes place at the protonated amino groups of macroporous crosslinked copolymer. The results of batch experiments per-formed at pH 1-14 showed fast sorption kinetics for removing TcO(4)(-) by amino-functionalized PGME-deta in a wide range of pH, that is, from 1.0 to 9.0. Almost complete removal of TcO(4)(-) (91-98%) was reached within 180 min in the stated pH range (1.0-9.0), with the sorption half-times of under 25 min. The partitioning coefficients of linear adsorption isotherms, with 180-min equilibrium time, reach the high values of 2130 mL g(-1) and 1698 mL g(-1) for the two samples of synthesized PGME-deta.
PB  - Wiley-Blackwell, Malden
T2  - Journal of Applied Polymer Science
T1  - Adsorptive Removal of Technetium-99 Using Macroporous Poly(GMA-co-EGDMA) Modified with Diethylene Triamine
VL  - 123
IS  - 2
SP  - 1273
EP  - 1282
DO  - 10.1002/app.34693
ER  - 

@article{
author = "Hercigonja, Radmila and Maksin, Danijela and Nastasović, Aleksandra and Trifunović, Snežana and Glodic, Pavle B. and Onjia, Antonije E.",
year = "2012",
abstract = "The possibility of sorption of technetium-99 in the form of pertechnetate anion (TcO(4)(-)) and the sorption kinetics for removing TcO(4)(-) from aqueous solution by chelating polymers based on glycidyl methacrylate (GMA) were investigated. Two samples of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (PGME), with different amount of the crosslinker (ethylene glycol dimethacrylate, EGDMA), were synthesized by suspension copolymerization and functionalized with diethylene triamine (deta). We propose that nonspecific sorption of pertechnetate anion via electrostatic interactions takes place at the protonated amino groups of macroporous crosslinked copolymer. The results of batch experiments per-formed at pH 1-14 showed fast sorption kinetics for removing TcO(4)(-) by amino-functionalized PGME-deta in a wide range of pH, that is, from 1.0 to 9.0. Almost complete removal of TcO(4)(-) (91-98%) was reached within 180 min in the stated pH range (1.0-9.0), with the sorption half-times of under 25 min. The partitioning coefficients of linear adsorption isotherms, with 180-min equilibrium time, reach the high values of 2130 mL g(-1) and 1698 mL g(-1) for the two samples of synthesized PGME-deta.",
publisher = "Wiley-Blackwell, Malden",
journal = "Journal of Applied Polymer Science",
title = "Adsorptive Removal of Technetium-99 Using Macroporous Poly(GMA-co-EGDMA) Modified with Diethylene Triamine",
volume = "123",
number = "2",
pages = "1273-1282",
doi = "10.1002/app.34693"
}

Hercigonja, R., Maksin, D., Nastasović, A., Trifunović, S., Glodic, P. B.,& Onjia, A. E.. (2012). Adsorptive Removal of Technetium-99 Using Macroporous Poly(GMA-co-EGDMA) Modified with Diethylene Triamine. in Journal of Applied Polymer Science
Wiley-Blackwell, Malden., 123(2), 1273-1282.
https://doi.org/10.1002/app.34693

Hercigonja R, Maksin D, Nastasović A, Trifunović S, Glodic PB, Onjia AE. Adsorptive Removal of Technetium-99 Using Macroporous Poly(GMA-co-EGDMA) Modified with Diethylene Triamine. in Journal of Applied Polymer Science. 2012;123(2):1273-1282.
doi:10.1002/app.34693 .

Hercigonja, Radmila, Maksin, Danijela, Nastasović, Aleksandra, Trifunović, Snežana, Glodic, Pavle B., Onjia, Antonije E., "Adsorptive Removal of Technetium-99 Using Macroporous Poly(GMA-co-EGDMA) Modified with Diethylene Triamine" in Journal of Applied Polymer Science, 123, no. 2 (2012):1273-1282,
https://doi.org/10.1002/app.34693 . .

TY  - JOUR
AU  - Maksin, Danijela
AU  - Hercigonja, Radmila
AU  - Lazarevic, Magdalena Z.
AU  - Žunić, Marija
AU  - Nastasović, Aleksandra
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1063
AB  - Technetium-99 comprises a significant health risk, since edible plants can bioaccumulate and convert it to more lipophilic species that cannot be excreted through urine. Batch kinetics of pertechnetate removal from aqueous solutions by two samples of crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) functionalized with diethylene triamine (PGME-deta) was investigated at the optimum pH value of 3.0, and the initial solution activity of 325 MBq dm(-3). PGME-deta was characterized by elemental analysis, mercury intrusion porosimetry, and scanning electron microscopy. Five kinetic models (pseudo-first, pseudo-second order, Elovich, Bangham, and intraparticle diffusion) were used to determine the best-fit equation for pertechnetate sorption. After 24 h, PGME-deta samples sorbed more than 98% of pertechnetate present, with maximum sorption capacity of 25.5 MBq g(-1), showing good potential for remediation of slightly contaminated groundwater.
PB  - Springer Verlag
T2  - Polymer Bulletin
T1  - Modeling of kinetics of pertechnetate removal by amino-functionalized glycidyl methacrylate copolymer
VL  - 68
IS  - 2
SP  - 507
EP  - 528
DO  - 10.1007/s00289-011-0634-5
ER  - 

@article{
author = "Maksin, Danijela and Hercigonja, Radmila and Lazarevic, Magdalena Z. and Žunić, Marija and Nastasović, Aleksandra",
year = "2012",
abstract = "Technetium-99 comprises a significant health risk, since edible plants can bioaccumulate and convert it to more lipophilic species that cannot be excreted through urine. Batch kinetics of pertechnetate removal from aqueous solutions by two samples of crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) functionalized with diethylene triamine (PGME-deta) was investigated at the optimum pH value of 3.0, and the initial solution activity of 325 MBq dm(-3). PGME-deta was characterized by elemental analysis, mercury intrusion porosimetry, and scanning electron microscopy. Five kinetic models (pseudo-first, pseudo-second order, Elovich, Bangham, and intraparticle diffusion) were used to determine the best-fit equation for pertechnetate sorption. After 24 h, PGME-deta samples sorbed more than 98% of pertechnetate present, with maximum sorption capacity of 25.5 MBq g(-1), showing good potential for remediation of slightly contaminated groundwater.",
publisher = "Springer Verlag",
journal = "Polymer Bulletin",
title = "Modeling of kinetics of pertechnetate removal by amino-functionalized glycidyl methacrylate copolymer",
volume = "68",
number = "2",
pages = "507-528",
doi = "10.1007/s00289-011-0634-5"
}

Maksin, D., Hercigonja, R., Lazarevic, M. Z., Žunić, M.,& Nastasović, A.. (2012). Modeling of kinetics of pertechnetate removal by amino-functionalized glycidyl methacrylate copolymer. in Polymer Bulletin
Springer Verlag., 68(2), 507-528.
https://doi.org/10.1007/s00289-011-0634-5

Maksin D, Hercigonja R, Lazarevic MZ, Žunić M, Nastasović A. Modeling of kinetics of pertechnetate removal by amino-functionalized glycidyl methacrylate copolymer. in Polymer Bulletin. 2012;68(2):507-528.
doi:10.1007/s00289-011-0634-5 .

Maksin, Danijela, Hercigonja, Radmila, Lazarevic, Magdalena Z., Žunić, Marija, Nastasović, Aleksandra, "Modeling of kinetics of pertechnetate removal by amino-functionalized glycidyl methacrylate copolymer" in Polymer Bulletin, 68, no. 2 (2012):507-528,
https://doi.org/10.1007/s00289-011-0634-5 . .

TY  - CONF
AU  - Maksin, Danijela
AU  - Žunić, Marija
AU  - Jović-Jovičić, Nataša
AU  - Milutinović Nikolić, Aleksandra
AU  - Banković, Predrag
AU  - Nastasović, Aleksandra
AU  - Mojović, Zorica
AU  - Jovanović, Dušan
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6702
AB  - Untreated textile wastewaters often contain a great diversity of organic and inorganic pollutants (including non-biodegradable substances like dyes, additives, as well as heavy metal cations like Cu2+, Cd2+, Zn 2+, Pb 2+, and Ni2+). Finding a multipurpose adsorbent for both inorganic and organic pollutants is a great challenge. It was shown that organobentonites modified with tetraalkylammonium ions in amounts corresponding to cation exchange capacity (CEC) can be applied in such purposes. In this study organobentonite obtained using domestic bentonite from mine Bogovina and hexadecyltrimethylammonium cation in amount corresponding to CEC of this clay was tested as a multifunctional adsorbent. As a test model of wastewater the six component solution was used. The solution was prepared from three selected textile azo dyes: Acid Orange 10 (AO 10), Acid Yellow 99 (AY 99) and Reactive Black 5 (RB 5) as well as three toxic metals: Pb2+, Ni2+ and Cd2+. Initial concentration of each pollutant was 50 mg dm-3. Dye concentration monitoring was performed by UV-VIS spectroscopy.
PB  - Serbian Chemical Society, Division of Analytical Chemistry
C3  - 16th European Conference on Analytic Chemistry “Challenges in Modern Analytical Chemistry”, Abstracts, 11-15. September 2011, Belgrade
T1  - Organobentonites as adsorbents of complex mixtures of dyes and heavy metals
SP  - EN53-Session B
EP  - EN53-Session B
UR  - https://hdl.handle.net/21.15107/rcub_cer_6702
ER  - 

@conference{
author = "Maksin, Danijela and Žunić, Marija and Jović-Jovičić, Nataša and Milutinović Nikolić, Aleksandra and Banković, Predrag and Nastasović, Aleksandra and Mojović, Zorica and Jovanović, Dušan",
year = "2011",
abstract = "Untreated textile wastewaters often contain a great diversity of organic and inorganic pollutants (including non-biodegradable substances like dyes, additives, as well as heavy metal cations like Cu2+, Cd2+, Zn 2+, Pb 2+, and Ni2+). Finding a multipurpose adsorbent for both inorganic and organic pollutants is a great challenge. It was shown that organobentonites modified with tetraalkylammonium ions in amounts corresponding to cation exchange capacity (CEC) can be applied in such purposes. In this study organobentonite obtained using domestic bentonite from mine Bogovina and hexadecyltrimethylammonium cation in amount corresponding to CEC of this clay was tested as a multifunctional adsorbent. As a test model of wastewater the six component solution was used. The solution was prepared from three selected textile azo dyes: Acid Orange 10 (AO 10), Acid Yellow 99 (AY 99) and Reactive Black 5 (RB 5) as well as three toxic metals: Pb2+, Ni2+ and Cd2+. Initial concentration of each pollutant was 50 mg dm-3. Dye concentration monitoring was performed by UV-VIS spectroscopy.",
publisher = "Serbian Chemical Society, Division of Analytical Chemistry",
journal = "16th European Conference on Analytic Chemistry “Challenges in Modern Analytical Chemistry”, Abstracts, 11-15. September 2011, Belgrade",
title = "Organobentonites as adsorbents of complex mixtures of dyes and heavy metals",
pages = "EN53-Session B-EN53-Session B",
url = "https://hdl.handle.net/21.15107/rcub_cer_6702"
}

Maksin, D., Žunić, M., Jović-Jovičić, N., Milutinović Nikolić, A., Banković, P., Nastasović, A., Mojović, Z.,& Jovanović, D.. (2011). Organobentonites as adsorbents of complex mixtures of dyes and heavy metals. in 16th European Conference on Analytic Chemistry “Challenges in Modern Analytical Chemistry”, Abstracts, 11-15. September 2011, Belgrade
Serbian Chemical Society, Division of Analytical Chemistry., EN53-Session B-EN53-Session B.
https://hdl.handle.net/21.15107/rcub_cer_6702

Maksin D, Žunić M, Jović-Jovičić N, Milutinović Nikolić A, Banković P, Nastasović A, Mojović Z, Jovanović D. Organobentonites as adsorbents of complex mixtures of dyes and heavy metals. in 16th European Conference on Analytic Chemistry “Challenges in Modern Analytical Chemistry”, Abstracts, 11-15. September 2011, Belgrade. 2011;:EN53-Session B-EN53-Session B.
https://hdl.handle.net/21.15107/rcub_cer_6702 .

Maksin, Danijela, Žunić, Marija, Jović-Jovičić, Nataša, Milutinović Nikolić, Aleksandra, Banković, Predrag, Nastasović, Aleksandra, Mojović, Zorica, Jovanović, Dušan, "Organobentonites as adsorbents of complex mixtures of dyes and heavy metals" in 16th European Conference on Analytic Chemistry “Challenges in Modern Analytical Chemistry”, Abstracts, 11-15. September 2011, Belgrade (2011):EN53-Session B-EN53-Session B,
https://hdl.handle.net/21.15107/rcub_cer_6702 .

TY  - CHAP
AU  - Nastasović, Aleksandra
AU  - Sandić, Zvjezdana P.
AU  - Maksin, Danijela
AU  - Onjia, Antonije E.
AU  - Milutinović Nikolić, Aleksandra
AU  - Jovanović, D.M.
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/940
AB  - Two porous samples and one non-porous sample of crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) [abbreviated PGME] were synthesized by suspension copolymerization and functionalized by ring-opening reaction of the pendant epoxy groups with diethylene triamine (deta). Initial PGME, as well as amino-functionalized samples, were characterized by FT-IR spectroscopy, mercury porosimetry, scanning electron microsopy and elemental analysis. The kinetics of Cr(VI) sorption by amino-functionalized PGME was investigated in batch experiments under non-competitive conditions. It was found that the porosity of PGME-deta samples plays an important role in Cr(VI) uptake. Cr(VI) sorption by macroporous amino-functionalized samples was rapid, with the uptake capacity higher than 80% after 30 minutes. Two kinetic models (the pseudo-first and the pseudo-second order) were used to determine the best-fit equation for chromium(VI) sorption by PGME-deta.
T2  - Chromium: Environmental, Medical and Materials Studies
T1  - Macroporous and non-porous amino-functionalized glycidyl methacrylate based copolymers for hexavalent chromium sorption
SP  - 155
EP  - 172
UR  - https://hdl.handle.net/21.15107/rcub_cer_940
ER  - 

@inbook{
author = "Nastasović, Aleksandra and Sandić, Zvjezdana P. and Maksin, Danijela and Onjia, Antonije E. and Milutinović Nikolić, Aleksandra and Jovanović, D.M.",
year = "2011",
abstract = "Two porous samples and one non-porous sample of crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) [abbreviated PGME] were synthesized by suspension copolymerization and functionalized by ring-opening reaction of the pendant epoxy groups with diethylene triamine (deta). Initial PGME, as well as amino-functionalized samples, were characterized by FT-IR spectroscopy, mercury porosimetry, scanning electron microsopy and elemental analysis. The kinetics of Cr(VI) sorption by amino-functionalized PGME was investigated in batch experiments under non-competitive conditions. It was found that the porosity of PGME-deta samples plays an important role in Cr(VI) uptake. Cr(VI) sorption by macroporous amino-functionalized samples was rapid, with the uptake capacity higher than 80% after 30 minutes. Two kinetic models (the pseudo-first and the pseudo-second order) were used to determine the best-fit equation for chromium(VI) sorption by PGME-deta.",
journal = "Chromium: Environmental, Medical and Materials Studies",
booktitle = "Macroporous and non-porous amino-functionalized glycidyl methacrylate based copolymers for hexavalent chromium sorption",
pages = "155-172",
url = "https://hdl.handle.net/21.15107/rcub_cer_940"
}

Nastasović, A., Sandić, Z. P., Maksin, D., Onjia, A. E., Milutinović Nikolić, A.,& Jovanović, D.M.. (2011). Macroporous and non-porous amino-functionalized glycidyl methacrylate based copolymers for hexavalent chromium sorption. in Chromium: Environmental, Medical and Materials Studies, 155-172.
https://hdl.handle.net/21.15107/rcub_cer_940

Nastasović A, Sandić ZP, Maksin D, Onjia AE, Milutinović Nikolić A, Jovanović D. Macroporous and non-porous amino-functionalized glycidyl methacrylate based copolymers for hexavalent chromium sorption. in Chromium: Environmental, Medical and Materials Studies. 2011;:155-172.
https://hdl.handle.net/21.15107/rcub_cer_940 .

Nastasović, Aleksandra, Sandić, Zvjezdana P., Maksin, Danijela, Onjia, Antonije E., Milutinović Nikolić, Aleksandra, Jovanović, D.M., "Macroporous and non-porous amino-functionalized glycidyl methacrylate based copolymers for hexavalent chromium sorption" in Chromium: Environmental, Medical and Materials Studies (2011):155-172,
https://hdl.handle.net/21.15107/rcub_cer_940 .