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  - Bojić, Danijela V.
AU  - Momčilović, Milan Z.
AU  - Milenković, Dragan D.
AU  - Mitrović, Jelena Z.
AU  - Bankovic, Predrag
AU  - Velinov, Nena D.
AU  - Nikolić, Goran
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1811
AB  - Practical aspects of Lagenaria vulgaris shell conversion to activated carbon were examined along with its use in ranitidine adsorption. Kinetics and isotherms of adsorption onto Lagenaria vulgaris carbon (LVC) were correlated to several theoretical adsorption models. The best fit was found in the case of Langmuir and pseudo-second-order model indicating monolayer adsorption. The influence of pH under kinetic study showed slightly hindered adsorption below pH 4. The optimal adsorbent dosage was set to 1 g/L. LVC was characterized by several complementary techniques, including wet chemical techniques such as Boehms titrations and determination of pH(pzc) and pH of LVC, which revealed neutral nature of the adsorbent. N-2 sorptometry determined specific surface area of 665 m(2)/g and significant ratio of micropores in the sample with maximum walls diameter of 2.2 nm. Fourier transform infrared spectroscopy (FTIR) confirmed the role of lignin and cellulose in the formation of the final LVC structure. Porous structure of the material was proved by using scanning electron microscopy. Preparation of LVC material drew attention as an easy and low-cost process for production of a highly efficient adsorbent which exhibited fast kinetics of ranitidine removal in the first minutes of contacting and large adsorption capacity (315.5 mg/g) at equilibrium. (C) 2015 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University.
T2  - Arabian Journal of Chemistry
T1  - Characterization of a low cost Lagenaria vulgaris based carbon for ranitidine removal from aqueous solutions
VL  - 10
IS  - 7
SP  - 956
EP  - 964
DO  - 10.1016/j.arabjc.2014.12.018
ER  - 

@article{
author = "Bojić, Danijela V. and Momčilović, Milan Z. and Milenković, Dragan D. and Mitrović, Jelena Z. and Bankovic, Predrag and Velinov, Nena D. and Nikolić, Goran",
year = "2017",
abstract = "Practical aspects of Lagenaria vulgaris shell conversion to activated carbon were examined along with its use in ranitidine adsorption. Kinetics and isotherms of adsorption onto Lagenaria vulgaris carbon (LVC) were correlated to several theoretical adsorption models. The best fit was found in the case of Langmuir and pseudo-second-order model indicating monolayer adsorption. The influence of pH under kinetic study showed slightly hindered adsorption below pH 4. The optimal adsorbent dosage was set to 1 g/L. LVC was characterized by several complementary techniques, including wet chemical techniques such as Boehms titrations and determination of pH(pzc) and pH of LVC, which revealed neutral nature of the adsorbent. N-2 sorptometry determined specific surface area of 665 m(2)/g and significant ratio of micropores in the sample with maximum walls diameter of 2.2 nm. Fourier transform infrared spectroscopy (FTIR) confirmed the role of lignin and cellulose in the formation of the final LVC structure. Porous structure of the material was proved by using scanning electron microscopy. Preparation of LVC material drew attention as an easy and low-cost process for production of a highly efficient adsorbent which exhibited fast kinetics of ranitidine removal in the first minutes of contacting and large adsorption capacity (315.5 mg/g) at equilibrium. (C) 2015 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University.",
journal = "Arabian Journal of Chemistry",
title = "Characterization of a low cost Lagenaria vulgaris based carbon for ranitidine removal from aqueous solutions",
volume = "10",
number = "7",
pages = "956-964",
doi = "10.1016/j.arabjc.2014.12.018"
}

Bojić, D. V., Momčilović, M. Z., Milenković, D. D., Mitrović, J. Z., Bankovic, P., Velinov, N. D.,& Nikolić, G.. (2017). Characterization of a low cost Lagenaria vulgaris based carbon for ranitidine removal from aqueous solutions. in Arabian Journal of Chemistry, 10(7), 956-964.
https://doi.org/10.1016/j.arabjc.2014.12.018

Bojić DV, Momčilović MZ, Milenković DD, Mitrović JZ, Bankovic P, Velinov ND, Nikolić G. Characterization of a low cost Lagenaria vulgaris based carbon for ranitidine removal from aqueous solutions. in Arabian Journal of Chemistry. 2017;10(7):956-964.
doi:10.1016/j.arabjc.2014.12.018 .

Bojić, Danijela V., Momčilović, Milan Z., Milenković, Dragan D., Mitrović, Jelena Z., Bankovic, Predrag, Velinov, Nena D., Nikolić, Goran, "Characterization of a low cost Lagenaria vulgaris based carbon for ranitidine removal from aqueous solutions" in Arabian Journal of Chemistry, 10, no. 7 (2017):956-964,
https://doi.org/10.1016/j.arabjc.2014.12.018 . .

TY  - JOUR
AU  - Petrović, Milica M.
AU  - Mitrović, Jelena Z.
AU  - Antonijevic, Milan D.
AU  - Matović, Branko
AU  - Bojić, Danijela V.
AU  - Bojić, Aleksandar Lj.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/518
AB  - This paper reports the synthesis, characterization and application of a Ti-Bi2O3 anode for the electrochemical decolorization of the textile dye Reactive Red 2. The anode was synthesized by electrodeposition on a Ti substrate immersed in an acidic bismuth (III) solution at constant potential, followed by calcination in air at 600 degrees C. Thermogravithetric Analysis (TGA), Energy-dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD) analysis revealed that the electrodeposited material was predominantly metallic bismuth, which was oxidized to pure alpha-Bi2O3 during the calcination in air. SEM micrographs revealed that the Bi2O3 coat at the anode surface was inhomogeneous and porous. Reactive Red 2 was completely electrochemically decolorized at the synthesized anode in the presence of H2O2. The applied current density, H2O2 and Na2SO4 concentration, medium pH and initial dye concentration affected the dye decolorization rate. The optimal process parameters were found to be as follows: an applied current density of 40 mA cm(-2) using a mixture of 10 mmol dm(-3) H2O2 and 10 mmol dm(-3) Na2SO4 at pH 7. The dye decolorization rate was shown to decrease as its initial concentration increased. The decolorization reactions were found to follow pseudo-first order kinetics. (C) 2015 Elsevier B.V. All rights reserved.
T2  - Materials Chemistry and Physics
T1  - Synthesis and characterization of new Ti-Bi2O3 anode and its use for reactive dye degradation
VL  - 158
SP  - 31
EP  - 37
DO  - 10.1016/j.matchemphys.2015.03.030
ER  - 

@article{
author = "Petrović, Milica M. and Mitrović, Jelena Z. and Antonijevic, Milan D. and Matović, Branko and Bojić, Danijela V. and Bojić, Aleksandar Lj.",
year = "2015",
abstract = "This paper reports the synthesis, characterization and application of a Ti-Bi2O3 anode for the electrochemical decolorization of the textile dye Reactive Red 2. The anode was synthesized by electrodeposition on a Ti substrate immersed in an acidic bismuth (III) solution at constant potential, followed by calcination in air at 600 degrees C. Thermogravithetric Analysis (TGA), Energy-dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD) analysis revealed that the electrodeposited material was predominantly metallic bismuth, which was oxidized to pure alpha-Bi2O3 during the calcination in air. SEM micrographs revealed that the Bi2O3 coat at the anode surface was inhomogeneous and porous. Reactive Red 2 was completely electrochemically decolorized at the synthesized anode in the presence of H2O2. The applied current density, H2O2 and Na2SO4 concentration, medium pH and initial dye concentration affected the dye decolorization rate. The optimal process parameters were found to be as follows: an applied current density of 40 mA cm(-2) using a mixture of 10 mmol dm(-3) H2O2 and 10 mmol dm(-3) Na2SO4 at pH 7. The dye decolorization rate was shown to decrease as its initial concentration increased. The decolorization reactions were found to follow pseudo-first order kinetics. (C) 2015 Elsevier B.V. All rights reserved.",
journal = "Materials Chemistry and Physics",
title = "Synthesis and characterization of new Ti-Bi2O3 anode and its use for reactive dye degradation",
volume = "158",
pages = "31-37",
doi = "10.1016/j.matchemphys.2015.03.030"
}

Petrović, M. M., Mitrović, J. Z., Antonijevic, M. D., Matović, B., Bojić, D. V.,& Bojić, A. Lj.. (2015). Synthesis and characterization of new Ti-Bi2O3 anode and its use for reactive dye degradation. in Materials Chemistry and Physics, 158, 31-37.
https://doi.org/10.1016/j.matchemphys.2015.03.030

Petrović MM, Mitrović JZ, Antonijevic MD, Matović B, Bojić DV, Bojić AL. Synthesis and characterization of new Ti-Bi2O3 anode and its use for reactive dye degradation. in Materials Chemistry and Physics. 2015;158:31-37.
doi:10.1016/j.matchemphys.2015.03.030 .

Petrović, Milica M., Mitrović, Jelena Z., Antonijevic, Milan D., Matović, Branko, Bojić, Danijela V., Bojić, Aleksandar Lj., "Synthesis and characterization of new Ti-Bi2O3 anode and its use for reactive dye degradation" in Materials Chemistry and Physics, 158 (2015):31-37,
https://doi.org/10.1016/j.matchemphys.2015.03.030 . .