TY  - JOUR
AU  - Radomirović, Milena
AU  - Ćirović, Željko
AU  - Maksin, Danijela
AU  - Bakić, Tamara
AU  - Lukić, Jelena
AU  - Stanković, Slavka
AU  - Onjia, Antonije
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4357
AB  - Soil samples from the site of the former largest paint and varnish factory in ex-Yugoslavia were analyzed for arsenic and eight heavy metals (Pb, Cd, Zn, Cr, Ni, Cu, Fe, and Hg). Several additional soil properties (pH, sulfur, nitrogen, phosphorus, and water content) were also measured. Multivariate analysis showed strong correlations between Pb and Zn; and a moderate correlation between Cu and Ni. There was no correlation between heavy metals and any of the analyzed soil properties parameters. A factor analysis grouped most heavy metals, except Cd, which showed different behavior, and Fe and As, which associated with soil properties. The soil samples were clustered into two distinctive groups. Positive matrix factorization receptor modeling clearly identified Zn and Pb as belonging to the traffic vehicle factor. The second factor dominating arsenic was industrial chemical emissions, while the third factor containing most of the heavy metals was attributed to natural background variation. The last non-metallic factor, dominated by sulfur, was the result of past activities in the paint facility. The average enrichment factor values were for the metals analyzed were: 0.73; 0.71; 2.4; 0.58; 2.3; 0.87; 1.6; and 0.76; for Cr, Cd, Pb, Ni, Zn, Cu, As, and Hg, respectively. Only moderate soil enrichment by Pb and Zn was found. The geoaccumulation index values showed a moderately polluted soil with Pb and Zn, but most contributing to the ecological risk were Cd with 63% and Hg with 19%. These two metals are of major concern in this case study due to their high toxicity, even though they are present at very low concentrations. Generally, a moderate ecological risk was estimated for most soil samples, except for a small number of high-risk samples. Spatial distribution mapped three severely polluted sub-areas. In general, the paint and varnish industry moderately contributes to the contamination of soil. The main ecological risk from metal contamination is not related to the paint technological production process itself, but from other activities at the site that deposit of heavy metals into the soil.
PB  - Frontiers Media Sa, Lausanne
T2  - Frontiers in Environmental Science
T1  - Ecological Risk Assessment of Heavy Metals in the Soil at a Former Painting Industry Facility
VL  - 8
DO  - 10.3389/fenvs.2020.560415
ER  - 

@article{
author = "Radomirović, Milena and Ćirović, Željko and Maksin, Danijela and Bakić, Tamara and Lukić, Jelena and Stanković, Slavka and Onjia, Antonije",
year = "2020",
abstract = "Soil samples from the site of the former largest paint and varnish factory in ex-Yugoslavia were analyzed for arsenic and eight heavy metals (Pb, Cd, Zn, Cr, Ni, Cu, Fe, and Hg). Several additional soil properties (pH, sulfur, nitrogen, phosphorus, and water content) were also measured. Multivariate analysis showed strong correlations between Pb and Zn; and a moderate correlation between Cu and Ni. There was no correlation between heavy metals and any of the analyzed soil properties parameters. A factor analysis grouped most heavy metals, except Cd, which showed different behavior, and Fe and As, which associated with soil properties. The soil samples were clustered into two distinctive groups. Positive matrix factorization receptor modeling clearly identified Zn and Pb as belonging to the traffic vehicle factor. The second factor dominating arsenic was industrial chemical emissions, while the third factor containing most of the heavy metals was attributed to natural background variation. The last non-metallic factor, dominated by sulfur, was the result of past activities in the paint facility. The average enrichment factor values were for the metals analyzed were: 0.73; 0.71; 2.4; 0.58; 2.3; 0.87; 1.6; and 0.76; for Cr, Cd, Pb, Ni, Zn, Cu, As, and Hg, respectively. Only moderate soil enrichment by Pb and Zn was found. The geoaccumulation index values showed a moderately polluted soil with Pb and Zn, but most contributing to the ecological risk were Cd with 63% and Hg with 19%. These two metals are of major concern in this case study due to their high toxicity, even though they are present at very low concentrations. Generally, a moderate ecological risk was estimated for most soil samples, except for a small number of high-risk samples. Spatial distribution mapped three severely polluted sub-areas. In general, the paint and varnish industry moderately contributes to the contamination of soil. The main ecological risk from metal contamination is not related to the paint technological production process itself, but from other activities at the site that deposit of heavy metals into the soil.",
publisher = "Frontiers Media Sa, Lausanne",
journal = "Frontiers in Environmental Science",
title = "Ecological Risk Assessment of Heavy Metals in the Soil at a Former Painting Industry Facility",
volume = "8",
doi = "10.3389/fenvs.2020.560415"
}

Radomirović, M., Ćirović, Ž., Maksin, D., Bakić, T., Lukić, J., Stanković, S.,& Onjia, A.. (2020). Ecological Risk Assessment of Heavy Metals in the Soil at a Former Painting Industry Facility. in Frontiers in Environmental Science
Frontiers Media Sa, Lausanne., 8.
https://doi.org/10.3389/fenvs.2020.560415

Radomirović M, Ćirović Ž, Maksin D, Bakić T, Lukić J, Stanković S, Onjia A. Ecological Risk Assessment of Heavy Metals in the Soil at a Former Painting Industry Facility. in Frontiers in Environmental Science. 2020;8.
doi:10.3389/fenvs.2020.560415 .

Radomirović, Milena, Ćirović, Željko, Maksin, Danijela, Bakić, Tamara, Lukić, Jelena, Stanković, Slavka, Onjia, Antonije, "Ecological Risk Assessment of Heavy Metals in the Soil at a Former Painting Industry Facility" in Frontiers in Environmental Science, 8 (2020),
https://doi.org/10.3389/fenvs.2020.560415 . .

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

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

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

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

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

TY  - JOUR
AU  - Maksin, Danijela
AU  - Nastasović, Aleksandra
AU  - Maksin, Tatjana N.
AU  - Sandić, Zvjezdana P.
AU  - Loos, Katja
AU  - Ekmeščić, Bojana
AU  - Onjia, Antonije
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3470
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  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Cu(II) immobilization onto a one-step synthesized poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) resin: Kinetics and XPS analysis
EP  - 19
IS  - 1
SP  - 9
VL  - 70
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",
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 = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Cu(II) immobilization onto a one-step synthesized poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) resin: Kinetics and XPS analysis",
pages = "19-9",
number = "1",
volume = "70",
doi = "10.2298/HEMIND141203007M"
}

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

Maksin D, Nastasović A, Maksin TN, Sandić ZP, Loos K, Ekmeščić B, Onjia A. 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, "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  - JOUR
AU  - Nastasović, Aleksandra
AU  - Ignjatović, Nenad
AU  - Uskoković, Dragan
AU  - Marković, Dana D.
AU  - Ekmeščić, Bojana
AU  - Maksin, Danijela
AU  - Onjia, Antonije
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2822
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
EP  - 5086
IS  - 14
SP  - 5076
VL  - 49
DO  - 10.1007/s10853-014-8214-3
ER  - 

@article{
author = "Nastasović, Aleksandra and Ignjatović, Nenad and Uskoković, Dragan and Marković, Dana D. and Ekmeščić, Bojana and Maksin, Danijela and Onjia, Antonije",
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",
pages = "5086-5076",
number = "14",
volume = "49",
doi = "10.1007/s10853-014-8214-3"
}

Nastasović, A., Ignjatović, N., Uskoković, D., Marković, D. D., Ekmeščić, B., Maksin, D.,& Onjia, A.. (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 D, Marković DD, Ekmeščić B, Maksin D, Onjia A. 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, Marković, Dana D., Ekmeščić, Bojana, Maksin, Danijela, Onjia, Antonije, "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  - Momčilović, Milan Z.
AU  - Maksin, Danijela
AU  - Nastasović, Aleksandra
AU  - Onjia, Antonije
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2287
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.
PB  - Univerzitet u Nišu - Tehnološki fakultet, Leskovac
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
EP  - 49
IS  - 2
SP  - 45
VL  - 2
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2287
ER  - 

@article{
author = "Momčilović, Milan Z. and Maksin, Danijela and Nastasović, Aleksandra and Onjia, Antonije",
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.",
publisher = "Univerzitet u Nišu - Tehnološki fakultet, Leskovac",
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",
pages = "49-45",
number = "2",
volume = "2",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2287"
}

Momčilović, M. Z., Maksin, D., Nastasović, A.,& Onjia, A.. (2013). The adsorption of imidacloprid onto activated carbon obtained by carbonization of pine cones. in Savremene tehnologije
Univerzitet u Nišu - Tehnološki fakultet, Leskovac., 2(2), 45-49.
https://hdl.handle.net/21.15107/rcub_technorep_2287

Momčilović MZ, Maksin D, Nastasović A, Onjia A. 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_technorep_2287 .

Momčilović, Milan Z., Maksin, Danijela, Nastasović, Aleksandra, Onjia, Antonije, "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_technorep_2287 .

TY  - JOUR
AU  - Maksin, Danijela
AU  - Kljajević, Slađana O.
AU  - Đolić, Maja
AU  - Marković, Jelena P.
AU  - Ekmeščić, Bojana
AU  - Onjia, Antonije
AU  - Nastasović, Aleksandra
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2245
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, t(1/2), of 1.5 min and high experimental maximal capacity, Q(max), 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.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Kinetic modeling of heavy metal sorption by vinyl pyridine based copolymer
EP  - 804
IS  - 6
SP  - 795
VL  - 66
DO  - 10.2298/HEMIND121002112M
ER  - 

@article{
author = "Maksin, Danijela and Kljajević, Slađana O. and Đolić, Maja and Marković, Jelena P. and Ekmeščić, Bojana and Onjia, Antonije 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, t(1/2), of 1.5 min and high experimental maximal capacity, Q(max), 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.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Kinetic modeling of heavy metal sorption by vinyl pyridine based copolymer",
pages = "804-795",
number = "6",
volume = "66",
doi = "10.2298/HEMIND121002112M"
}

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

Maksin D, Kljajević SO, Đolić M, Marković JP, Ekmeščić B, Onjia A, 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, Marković, Jelena P., Ekmeščić, Bojana, Onjia, Antonije, 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  - Maksin, Danijela
AU  - Nastasović, Aleksandra
AU  - Milutinović-Nikolić, Aleksandra
AU  - Suručić, Ljiljana T.
AU  - Sandić, Zvjezdana P.
AU  - Hercigonja, Radmila
AU  - Onjia, Antonije
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2203
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 Science Bv, Amsterdam
T2  - Journal of Hazardous Materials
T1  - Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers
EP  - 110
SP  - 99
VL  - 209
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",
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 Science Bv, Amsterdam",
journal = "Journal of Hazardous Materials",
title = "Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers",
pages = "110-99",
volume = "209",
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.. (2012). Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers. in Journal of Hazardous Materials
Elsevier Science Bv, Amsterdam., 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 A. 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, "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  - JOUR
AU  - Hercigonja, Radmila
AU  - Maksin, Danijela
AU  - Nastasović, Aleksandra
AU  - Trifunović, Snežana
AU  - Glodić, Pavle B.
AU  - Onjia, Antonije
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2241
AB  - dThe 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
EP  - 1282
IS  - 2
SP  - 1273
VL  - 123
DO  - 10.1002/app.34693
ER  - 

@article{
author = "Hercigonja, Radmila and Maksin, Danijela and Nastasović, Aleksandra and Trifunović, Snežana and Glodić, Pavle B. and Onjia, Antonije",
year = "2012",
abstract = "dThe 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",
pages = "1282-1273",
number = "2",
volume = "123",
doi = "10.1002/app.34693"
}

Hercigonja, R., Maksin, D., Nastasović, A., Trifunović, S., Glodić, P. B.,& Onjia, A.. (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, Glodić PB, Onjia A. 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, Glodić, Pavle B., Onjia, Antonije, "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  - CHAP
AU  - Nastasović, Aleksandra
AU  - Sandić, Zvjezdana P.
AU  - Maksin, Danijela
AU  - Onjia, Antonije
AU  - Milutinović-Nikolić, Aleksandra
AU  - Jovanović, D.M.
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1757
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
EP  - 172
SP  - 155
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10488
ER  - 

@inbook{
author = "Nastasović, Aleksandra and Sandić, Zvjezdana P. and Maksin, Danijela and Onjia, Antonije 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 = "172-155",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10488"
}

Nastasović, A., Sandić, Z. P., Maksin, D., Onjia, A., 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_vinar_10488

Nastasović A, Sandić ZP, Maksin D, Onjia A, 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_vinar_10488 .

Nastasović, Aleksandra, Sandić, Zvjezdana P., Maksin, Danijela, Onjia, Antonije, 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_vinar_10488 .

TY  - JOUR
AU  - Nastasović, Aleksandra
AU  - Sandić, Zvjezdana P.
AU  - Suručić, Ljiljana T.
AU  - Maksin, Danijela
AU  - Jakovljević, Dragica
AU  - Onjia, Antonije
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1416
AB  - Two samples of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), poly(GMA-co-EGDMA), with different porosity parameters were synthesized by suspension copolymerization and functionalized with ethylene diamine and diethylene triamine. The kinetics of Cr(VI) sorption by amino-functionalized poly(GMA-co-EGDMA) was investigated under non-competitive conditions. Competitive kinetics was studied from following multicomponent solutions: Cu(II) and Cr(VI); Cu(II), Co(II), Cd(II) and Ni(II): Cr(VI), Cu(II), Co(II) and Cd(II) solutions. Two kinetic models (the pseudo-first and pseudo-second-order) were used to determine the best-fit equation for the metals sorption by poly(GMA-co-EGDMA)-en and poly(GMA-co-EGDMA)-deta.
PB  - Elsevier, Amsterdam
T2  - Journal of Hazardous Materials
T1  - Kinetics of hexavalent chromium sorption on amino-functionalized macroporous glycidyl methacrylate copolymer
EP  - 159
IS  - 1-3
SP  - 153
VL  - 171
DO  - 10.1016/j.jhazmat.2009.05.116
ER  - 

@article{
author = "Nastasović, Aleksandra and Sandić, Zvjezdana P. and Suručić, Ljiljana T. and Maksin, Danijela and Jakovljević, Dragica and Onjia, Antonije",
year = "2009",
abstract = "Two samples of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), poly(GMA-co-EGDMA), with different porosity parameters were synthesized by suspension copolymerization and functionalized with ethylene diamine and diethylene triamine. The kinetics of Cr(VI) sorption by amino-functionalized poly(GMA-co-EGDMA) was investigated under non-competitive conditions. Competitive kinetics was studied from following multicomponent solutions: Cu(II) and Cr(VI); Cu(II), Co(II), Cd(II) and Ni(II): Cr(VI), Cu(II), Co(II) and Cd(II) solutions. Two kinetic models (the pseudo-first and pseudo-second-order) were used to determine the best-fit equation for the metals sorption by poly(GMA-co-EGDMA)-en and poly(GMA-co-EGDMA)-deta.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Hazardous Materials",
title = "Kinetics of hexavalent chromium sorption on amino-functionalized macroporous glycidyl methacrylate copolymer",
pages = "159-153",
number = "1-3",
volume = "171",
doi = "10.1016/j.jhazmat.2009.05.116"
}

Nastasović, A., Sandić, Z. P., Suručić, L. T., Maksin, D., Jakovljević, D.,& Onjia, A.. (2009). Kinetics of hexavalent chromium sorption on amino-functionalized macroporous glycidyl methacrylate copolymer. in Journal of Hazardous Materials
Elsevier, Amsterdam., 171(1-3), 153-159.
https://doi.org/10.1016/j.jhazmat.2009.05.116

Nastasović A, Sandić ZP, Suručić LT, Maksin D, Jakovljević D, Onjia A. Kinetics of hexavalent chromium sorption on amino-functionalized macroporous glycidyl methacrylate copolymer. in Journal of Hazardous Materials. 2009;171(1-3):153-159.
doi:10.1016/j.jhazmat.2009.05.116 .

Nastasović, Aleksandra, Sandić, Zvjezdana P., Suručić, Ljiljana T., Maksin, Danijela, Jakovljević, Dragica, Onjia, Antonije, "Kinetics of hexavalent chromium sorption on amino-functionalized macroporous glycidyl methacrylate copolymer" in Journal of Hazardous Materials, 171, no. 1-3 (2009):153-159,
https://doi.org/10.1016/j.jhazmat.2009.05.116 . .