TY  - JOUR
AU  - Najdanović, Slobodan M.
AU  - Petrović, Milica M.
AU  - Kostić, Miloš M.
AU  - Velinov, Nena D.
AU  - Radović Vučić, Miljana
AU  - Matović, Branko
AU  - Bojić, Aleksandar Lj.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8610
AB  - A new method of synthesis was developed for the preparation of sorbent basic bismuth nitrate [Bi6O5(OH)(3)](NO3)(5)center dot 2H(2)O (BBN-EtOH). This electrochemical method includes electrodeposition from an acidic Bi(III) solution in 96% ethanol at a constant current density of 150.0 mA cm(-2). Final product was obtained by thermal treatment at 200 degrees C. Characterization of BBN-EtOH was conducted by employing XRD, FTIR, SEM-EDX as well as BET, and its pI was also determined. The analysis showed that the material obtained is pure [Bi6O5(OH)(3)](NO3)(5)center dot 2H(2)O. Morphologically, it is composed of aggregates which were formed of several smaller particles of various shapes and sizes, some smaller than 100 nm. Electrochemically synthesized sorbent (BBN-EtOH) was used for the removal of the textile dye Reactive Blue 19 (RB19) from deionized water and model solution of river water, and it showed considerably superior sorption performance compared to other inorganic sorbents synthesized by conventional methods reported in the literature. Kinetic study suggests that the sorption process is both under reaction and diffusion control. Equilibrium of the sorption process was attained in several minutes, i.e., the sorption process is very fast. The sorption equilibrium data were well interpreted by the Langmuir, Sips and Brouers-Sotolongo isotherm. The maximum sorption performance was achieved at pH 2.0, and according to the Langmuir isotherm, it is 1344.99 mg g(-1).
T2  - Arabian Journal for Science and Engineering
T1  - New Way of Synthesis of Basic Bismuth Nitrate by Electrodeposition from Ethanol Solution: Characterization and Application for Removal of RB19 from Water
VL  - 44
IS  - 12
SP  - 9939
EP  - 9950
DO  - 10.1007/s13369-019-04177-y
ER  - 

@article{
author = "Najdanović, Slobodan M. and Petrović, Milica M. and Kostić, Miloš M. and Velinov, Nena D. and Radović Vučić, Miljana and Matović, Branko and Bojić, Aleksandar Lj.",
year = "2019",
abstract = "A new method of synthesis was developed for the preparation of sorbent basic bismuth nitrate [Bi6O5(OH)(3)](NO3)(5)center dot 2H(2)O (BBN-EtOH). This electrochemical method includes electrodeposition from an acidic Bi(III) solution in 96% ethanol at a constant current density of 150.0 mA cm(-2). Final product was obtained by thermal treatment at 200 degrees C. Characterization of BBN-EtOH was conducted by employing XRD, FTIR, SEM-EDX as well as BET, and its pI was also determined. The analysis showed that the material obtained is pure [Bi6O5(OH)(3)](NO3)(5)center dot 2H(2)O. Morphologically, it is composed of aggregates which were formed of several smaller particles of various shapes and sizes, some smaller than 100 nm. Electrochemically synthesized sorbent (BBN-EtOH) was used for the removal of the textile dye Reactive Blue 19 (RB19) from deionized water and model solution of river water, and it showed considerably superior sorption performance compared to other inorganic sorbents synthesized by conventional methods reported in the literature. Kinetic study suggests that the sorption process is both under reaction and diffusion control. Equilibrium of the sorption process was attained in several minutes, i.e., the sorption process is very fast. The sorption equilibrium data were well interpreted by the Langmuir, Sips and Brouers-Sotolongo isotherm. The maximum sorption performance was achieved at pH 2.0, and according to the Langmuir isotherm, it is 1344.99 mg g(-1).",
journal = "Arabian Journal for Science and Engineering",
title = "New Way of Synthesis of Basic Bismuth Nitrate by Electrodeposition from Ethanol Solution: Characterization and Application for Removal of RB19 from Water",
volume = "44",
number = "12",
pages = "9939-9950",
doi = "10.1007/s13369-019-04177-y"
}

Najdanović, S. M., Petrović, M. M., Kostić, M. M., Velinov, N. D., Radović Vučić, M., Matović, B.,& Bojić, A. Lj.. (2019). New Way of Synthesis of Basic Bismuth Nitrate by Electrodeposition from Ethanol Solution: Characterization and Application for Removal of RB19 from Water. in Arabian Journal for Science and Engineering, 44(12), 9939-9950.
https://doi.org/10.1007/s13369-019-04177-y

Najdanović SM, Petrović MM, Kostić MM, Velinov ND, Radović Vučić M, Matović B, Bojić AL. New Way of Synthesis of Basic Bismuth Nitrate by Electrodeposition from Ethanol Solution: Characterization and Application for Removal of RB19 from Water. in Arabian Journal for Science and Engineering. 2019;44(12):9939-9950.
doi:10.1007/s13369-019-04177-y .

Najdanović, Slobodan M., Petrović, Milica M., Kostić, Miloš M., Velinov, Nena D., Radović Vučić, Miljana, Matović, Branko, Bojić, Aleksandar Lj., "New Way of Synthesis of Basic Bismuth Nitrate by Electrodeposition from Ethanol Solution: Characterization and Application for Removal of RB19 from Water" in Arabian Journal for Science and Engineering, 44, no. 12 (2019):9939-9950,
https://doi.org/10.1007/s13369-019-04177-y . .

TY  - JOUR
AU  - Momčilović, Milan Z.
AU  - Onjia, Antonije E.
AU  - Trajković, Dragana N.
AU  - Kostić, Miloš M.
AU  - Milenković, Dragan D.
AU  - Bojić, Danijela V.
AU  - Bojić, Aleksandar Lj.
PY  - 2018
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0167732218302800
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7741
AB  - The shell of Lagenaria vulgaris (LV) plant was used as biosorbent for strontium removal from aqueous solutions. Chemical structure of the biosorbent's surface was characterized by the means of FTIR and Boehm's titrations. SEM-EDX technique was used to study the morphology and elemental composition of the material. The analyses pointed out to abundance of acidic functional groups which are charged in solution and hence responsible for ionic exchange of Sr(II) ions. Sorption was examined by varying initial concentrations of Sr(II) in solutions, sorbent's loadings, pH, and contacting times. Equilibrium of the process was attained in the first 10 min of contacting and followed pseudo-second order and Chrastil's kinetic models. It was established that sorption onto aLVB was heterogenous by nature and fitted well to Freundlich and Sips isotherm models with maximum sorption capacity of 29.55 mg g(-1). Sorption potentail was kept high after six cycles when acidic desorbents were used.
T2  - Journal of Molecular Liquids
T1  - Experimental and modelling study on strontium removal from aqueous solutions by Lagenaria vulgaris biosorbent
VL  - 258
SP  - 335
EP  - 344
DO  - 10.1016/j.molliq.2018.03.048
ER  - 

@article{
author = "Momčilović, Milan Z. and Onjia, Antonije E. and Trajković, Dragana N. and Kostić, Miloš M. and Milenković, Dragan D. and Bojić, Danijela V. and Bojić, Aleksandar Lj.",
year = "2018",
abstract = "The shell of Lagenaria vulgaris (LV) plant was used as biosorbent for strontium removal from aqueous solutions. Chemical structure of the biosorbent's surface was characterized by the means of FTIR and Boehm's titrations. SEM-EDX technique was used to study the morphology and elemental composition of the material. The analyses pointed out to abundance of acidic functional groups which are charged in solution and hence responsible for ionic exchange of Sr(II) ions. Sorption was examined by varying initial concentrations of Sr(II) in solutions, sorbent's loadings, pH, and contacting times. Equilibrium of the process was attained in the first 10 min of contacting and followed pseudo-second order and Chrastil's kinetic models. It was established that sorption onto aLVB was heterogenous by nature and fitted well to Freundlich and Sips isotherm models with maximum sorption capacity of 29.55 mg g(-1). Sorption potentail was kept high after six cycles when acidic desorbents were used.",
journal = "Journal of Molecular Liquids",
title = "Experimental and modelling study on strontium removal from aqueous solutions by Lagenaria vulgaris biosorbent",
volume = "258",
pages = "335-344",
doi = "10.1016/j.molliq.2018.03.048"
}

Momčilović, M. Z., Onjia, A. E., Trajković, D. N., Kostić, M. M., Milenković, D. D., Bojić, D. V.,& Bojić, A. Lj.. (2018). Experimental and modelling study on strontium removal from aqueous solutions by Lagenaria vulgaris biosorbent. in Journal of Molecular Liquids, 258, 335-344.
https://doi.org/10.1016/j.molliq.2018.03.048

Momčilović MZ, Onjia AE, Trajković DN, Kostić MM, Milenković DD, Bojić DV, Bojić AL. Experimental and modelling study on strontium removal from aqueous solutions by Lagenaria vulgaris biosorbent. in Journal of Molecular Liquids. 2018;258:335-344.
doi:10.1016/j.molliq.2018.03.048 .

Momčilović, Milan Z., Onjia, Antonije E., Trajković, Dragana N., Kostić, Miloš M., Milenković, Dragan D., Bojić, Danijela V., Bojić, Aleksandar Lj., "Experimental and modelling study on strontium removal from aqueous solutions by Lagenaria vulgaris biosorbent" in Journal of Molecular Liquids, 258 (2018):335-344,
https://doi.org/10.1016/j.molliq.2018.03.048 . .

TY  - JOUR
AU  - Najdanović, Slobodan M.
AU  - Petrović, Milica M.
AU  - Slipper, Ian J.
AU  - Kostić, Miloš M.
AU  - Prekajski, Marija D.
AU  - Mitrović, Jelena Z.
AU  - Bojić, Aleksandar Lj.
PY  - 2018
UR  - http://www.ingentaconnect.com/content/10.2175/106143017X15131012152924
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7869
AB  - A new photocatalyst bismuth oxo citrate was synthesized by facile precipitation process with calcination at 200 8C. The photocatalyst was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fouriertransform infrared (FTIR) spectroscopy, N2 sorptometry, and elemental analysis. Morphologically, it is composed of polyhedral particles with different, irregular shapes and sizes. The specific surface area (SSA) of the photocatalyst was 8.92 m2 g-1. It showed very good photocatalytic performance and reusability. Total decolorization of Reactive Blue 19 (RB19) was achieved in less than 10 minutes, which is much faster in comparison with TiO2 P25. Also, bismuth oxo citrate showed higher photocatalytic activity than other photocatalysts based on bismuth compounds reported by other authors. Optimal photocatalysis parameters were pH 2 and photocatalyst dose of 250 mg dm-3. The decolorization rate was found to decrease as initial dye concentration increased. The photocatalytic data best fitted to L-H kinetic model with pseudo-first order reaction rate. Chrastil diffusion model showed that diffusion has not influence on the process. Water Environ. Res., 90, 719 (2018). © 2018 Water Environment Federation.
T2  - Water Environment Research
T1  - A New Photocatalyst Bismuth Oxo Citrate: Synthesis, Characterization, and Photocatalytic Performance
VL  - 90
IS  - 8
SP  - 719
EP  - 728
DO  - 10.2175/106143017X15131012152924
ER  - 

@article{
author = "Najdanović, Slobodan M. and Petrović, Milica M. and Slipper, Ian J. and Kostić, Miloš M. and Prekajski, Marija D. and Mitrović, Jelena Z. and Bojić, Aleksandar Lj.",
year = "2018",
abstract = "A new photocatalyst bismuth oxo citrate was synthesized by facile precipitation process with calcination at 200 8C. The photocatalyst was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fouriertransform infrared (FTIR) spectroscopy, N2 sorptometry, and elemental analysis. Morphologically, it is composed of polyhedral particles with different, irregular shapes and sizes. The specific surface area (SSA) of the photocatalyst was 8.92 m2 g-1. It showed very good photocatalytic performance and reusability. Total decolorization of Reactive Blue 19 (RB19) was achieved in less than 10 minutes, which is much faster in comparison with TiO2 P25. Also, bismuth oxo citrate showed higher photocatalytic activity than other photocatalysts based on bismuth compounds reported by other authors. Optimal photocatalysis parameters were pH 2 and photocatalyst dose of 250 mg dm-3. The decolorization rate was found to decrease as initial dye concentration increased. The photocatalytic data best fitted to L-H kinetic model with pseudo-first order reaction rate. Chrastil diffusion model showed that diffusion has not influence on the process. Water Environ. Res., 90, 719 (2018). © 2018 Water Environment Federation.",
journal = "Water Environment Research",
title = "A New Photocatalyst Bismuth Oxo Citrate: Synthesis, Characterization, and Photocatalytic Performance",
volume = "90",
number = "8",
pages = "719-728",
doi = "10.2175/106143017X15131012152924"
}

Najdanović, S. M., Petrović, M. M., Slipper, I. J., Kostić, M. M., Prekajski, M. D., Mitrović, J. Z.,& Bojić, A. Lj.. (2018). A New Photocatalyst Bismuth Oxo Citrate: Synthesis, Characterization, and Photocatalytic Performance. in Water Environment Research, 90(8), 719-728.
https://doi.org/10.2175/106143017X15131012152924

Najdanović SM, Petrović MM, Slipper IJ, Kostić MM, Prekajski MD, Mitrović JZ, Bojić AL. A New Photocatalyst Bismuth Oxo Citrate: Synthesis, Characterization, and Photocatalytic Performance. in Water Environment Research. 2018;90(8):719-728.
doi:10.2175/106143017X15131012152924 .

Najdanović, Slobodan M., Petrović, Milica M., Slipper, Ian J., Kostić, Miloš M., Prekajski, Marija D., Mitrović, Jelena Z., Bojić, Aleksandar Lj., "A New Photocatalyst Bismuth Oxo Citrate: Synthesis, Characterization, and Photocatalytic Performance" in Water Environment Research, 90, no. 8 (2018):719-728,
https://doi.org/10.2175/106143017X15131012152924 . .

TY  - CONF
AU  - Plećaš, Ilija
AU  - Jelić, Ivana V.
AU  - Kostić, Miloš
AU  - Aleksić, Srđan
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11459
AB  - To assess the safety of disposal of radioactive waste material in cement, curing conditions and time of leaching radionuclides 137Cs have been studied. Leaching tests in cement-ion exchange resins-bentonite matrix, were carried out in accordance with a method recommended by IAEA. Curing conditions and curing time prior to commencing the leaching test are critically important in leach studies since the extent of hydration of the cement materials determines how much hydration product develops and whether it is available to block the pore network, thereby reducing leaching. Incremental leaching rates Rn(cm/d) of 137 Cs from cement-ion exchange resins-bentonite matrix after 60 days were measured. In this paper we compared two bentonite clay as sorption componente, from Japan and Serbia. The results presented in this paper are examples of results obtained in a 30-year concrete testing project which will influence the design of the engineer trenches system for future central Serbian radioactive waste disposal center.
AB  - Da bi se procenila bezbednost odlaganje radioaktivnog otpadnog materijala u cementu, prouĉavan je stepen izluţivanja radionuklida 137Cs. Testovi izluţivanja radjeni su za kompoziciju cementa-jonoizmenjivaĉke smole i bentonita i sprovedene su u skladu sa postupkom preporuĉenog od IAEA. Vreme sušenja pre otpoĉinjanja liĉing testa je od suštinske vaţnosti u studijama izluţivanja, jer uticaj hidratacije cementa odreĊuje koliko se hidratacija proizvoda razvija i da li je od uticaja na blokadu pora, ĉime se smanjuje curenje radionuklida iz matriksa . U ovom radu poredjena su dva bentonita kao sorpcione komponente , iz Japana i Srbije . Rezultati prikazani u ovom radu su primeri rezultata 30-godišnjeg projekta sistema inţenjerskih rovova za buduće srpsko centralno odlagalište radioaktivnog otpada.
PB  - Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"
PB  - Beograd : Društvo za zaštitu od zračenja Srbije i Crne Gore
C3  - 28. симпозијум ДЗЗСЦГ : зборник радова
T1  - Comparative Study of Japanaise and Serbian Bentonite in Cement-Ion Exchange Resins-Bentonite Clay Composition
T1  - Poređenje japanskih i srpskih bentonita u kompoziciji cement-jonoizmenjivačka smola-bentonitna glina
SP  - 379
EP  - 386
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11459
ER  - 

@conference{
author = "Plećaš, Ilija and Jelić, Ivana V. and Kostić, Miloš and Aleksić, Srđan",
year = "2015",
abstract = "To assess the safety of disposal of radioactive waste material in cement, curing conditions and time of leaching radionuclides 137Cs have been studied. Leaching tests in cement-ion exchange resins-bentonite matrix, were carried out in accordance with a method recommended by IAEA. Curing conditions and curing time prior to commencing the leaching test are critically important in leach studies since the extent of hydration of the cement materials determines how much hydration product develops and whether it is available to block the pore network, thereby reducing leaching. Incremental leaching rates Rn(cm/d) of 137 Cs from cement-ion exchange resins-bentonite matrix after 60 days were measured. In this paper we compared two bentonite clay as sorption componente, from Japan and Serbia. The results presented in this paper are examples of results obtained in a 30-year concrete testing project which will influence the design of the engineer trenches system for future central Serbian radioactive waste disposal center., Da bi se procenila bezbednost odlaganje radioaktivnog otpadnog materijala u cementu, prouĉavan je stepen izluţivanja radionuklida 137Cs. Testovi izluţivanja radjeni su za kompoziciju cementa-jonoizmenjivaĉke smole i bentonita i sprovedene su u skladu sa postupkom preporuĉenog od IAEA. Vreme sušenja pre otpoĉinjanja liĉing testa je od suštinske vaţnosti u studijama izluţivanja, jer uticaj hidratacije cementa odreĊuje koliko se hidratacija proizvoda razvija i da li je od uticaja na blokadu pora, ĉime se smanjuje curenje radionuklida iz matriksa . U ovom radu poredjena su dva bentonita kao sorpcione komponente , iz Japana i Srbije . Rezultati prikazani u ovom radu su primeri rezultata 30-godišnjeg projekta sistema inţenjerskih rovova za buduće srpsko centralno odlagalište radioaktivnog otpada.",
publisher = "Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", Beograd : Društvo za zaštitu od zračenja Srbije i Crne Gore",
journal = "28. симпозијум ДЗЗСЦГ : зборник радова",
title = "Comparative Study of Japanaise and Serbian Bentonite in Cement-Ion Exchange Resins-Bentonite Clay Composition, Poređenje japanskih i srpskih bentonita u kompoziciji cement-jonoizmenjivačka smola-bentonitna glina",
pages = "379-386",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11459"
}

Plećaš, I., Jelić, I. V., Kostić, M.,& Aleksić, S.. (2015). Comparative Study of Japanaise and Serbian Bentonite in Cement-Ion Exchange Resins-Bentonite Clay Composition. in 28. симпозијум ДЗЗСЦГ : зборник радова
Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"., 379-386.
https://hdl.handle.net/21.15107/rcub_vinar_11459

Plećaš I, Jelić IV, Kostić M, Aleksić S. Comparative Study of Japanaise and Serbian Bentonite in Cement-Ion Exchange Resins-Bentonite Clay Composition. in 28. симпозијум ДЗЗСЦГ : зборник радова. 2015;:379-386.
https://hdl.handle.net/21.15107/rcub_vinar_11459 .

Plećaš, Ilija, Jelić, Ivana V., Kostić, Miloš, Aleksić, Srđan, "Comparative Study of Japanaise and Serbian Bentonite in Cement-Ion Exchange Resins-Bentonite Clay Composition" in 28. симпозијум ДЗЗСЦГ : зборник радова (2015):379-386,
https://hdl.handle.net/21.15107/rcub_vinar_11459 .