TY  - JOUR
AU  - Gojgić, Jelena
AU  - Petrović, Miloš
AU  - Jugović, Branimir
AU  - Jokić, Bojan
AU  - Grgur, Branimir
AU  - Gvozdenović, Milica
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5297
AB  - Polyaniline (PANI), due to its highly reversible electrochemistry with superior energy storage and delivery characteristics, is considered as an electrode material in batteries, capacitors, and hybrid systems. We used a facile electrochemical synthesis for the formation of the PANI electrode using galvanostatic polymerization of aniline on the graphite electrode at the current density of 2.0 mA cm−2 from the aqueous electrolyte containing 0.25 mol dm−3 aniline and 1.0 mol dm−3 H2SO4. Electrochemical and electrical characterization suggested excellent energy storage features of the PANI electrode in a three-electrode system with specific energy up to 53 Wh kg−1 and specific power up to 7600 W kg−1. After 2000 successive charge/discharge cycles at 9.5 Ag−1, the PANI electrode retained 95% of the initial capacity, with practically unaltered Coulombic efficiency of nearly 98%, providing a good base for future studies and practical applications.
PB  - MDPI
T2  - Polymers
T1  - Electrochemical and Electrical Performances of High Energy Storage Polyaniline Electrode with Supercapattery Behavior
IS  - 24
SP  - 5365
VL  - 14
DO  - 10.3390/polym14245365
ER  - 

@article{
author = "Gojgić, Jelena and Petrović, Miloš and Jugović, Branimir and Jokić, Bojan and Grgur, Branimir and Gvozdenović, Milica",
year = "2022",
abstract = "Polyaniline (PANI), due to its highly reversible electrochemistry with superior energy storage and delivery characteristics, is considered as an electrode material in batteries, capacitors, and hybrid systems. We used a facile electrochemical synthesis for the formation of the PANI electrode using galvanostatic polymerization of aniline on the graphite electrode at the current density of 2.0 mA cm−2 from the aqueous electrolyte containing 0.25 mol dm−3 aniline and 1.0 mol dm−3 H2SO4. Electrochemical and electrical characterization suggested excellent energy storage features of the PANI electrode in a three-electrode system with specific energy up to 53 Wh kg−1 and specific power up to 7600 W kg−1. After 2000 successive charge/discharge cycles at 9.5 Ag−1, the PANI electrode retained 95% of the initial capacity, with practically unaltered Coulombic efficiency of nearly 98%, providing a good base for future studies and practical applications.",
publisher = "MDPI",
journal = "Polymers",
title = "Electrochemical and Electrical Performances of High Energy Storage Polyaniline Electrode with Supercapattery Behavior",
number = "24",
pages = "5365",
volume = "14",
doi = "10.3390/polym14245365"
}

Gojgić, J., Petrović, M., Jugović, B., Jokić, B., Grgur, B.,& Gvozdenović, M.. (2022). Electrochemical and Electrical Performances of High Energy Storage Polyaniline Electrode with Supercapattery Behavior. in Polymers
MDPI., 14(24), 5365.
https://doi.org/10.3390/polym14245365

Gojgić J, Petrović M, Jugović B, Jokić B, Grgur B, Gvozdenović M. Electrochemical and Electrical Performances of High Energy Storage Polyaniline Electrode with Supercapattery Behavior. in Polymers. 2022;14(24):5365.
doi:10.3390/polym14245365 .

Gojgić, Jelena, Petrović, Miloš, Jugović, Branimir, Jokić, Bojan, Grgur, Branimir, Gvozdenović, Milica, "Electrochemical and Electrical Performances of High Energy Storage Polyaniline Electrode with Supercapattery Behavior" in Polymers, 14, no. 24 (2022):5365,
https://doi.org/10.3390/polym14245365 . .

TY  - JOUR
AU  - Marković, Darka
AU  - Vasiljević, Jelena
AU  - Ašanin, Jelena
AU  - Ilić‐Tomić, Tatjana
AU  - Tomšič, Brigita
AU  - Jokić, Bojan
AU  - Mitrić, Miodrag
AU  - Simončič, Barbara
AU  - Mišić, Dušan
AU  - Radetić, Maja
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4520
AB  - A novel impregnation process for the fabrication of cotton nanocomposite with strong antimicrobial activity against antibiotics-resistant bacteria and yeast was developed. The impregnation process includes the sol-gel treatment of fabric with (3-aminopropyl)triethoxysilane in the first step, and synthesis of the CuO/Cu2O nanoparticles (NPs) on the fabric surface in the second step. The in situ synthesis of the CuO/Cu2O NPs was based on the adsorption of Cu2+-ions by the introduced amino groups of the sol-gel coating. The adsorbed Cu2+-ions are subsequently reduced in the alkaline solution of NaBH4. X-ray diffraction measurements confirmed the formation of CuO/Cu2O NPs. Scanning electron microscopy and atomic absorption spectrometry analyses indicate that the particle size, agglomeration, and amounts of synthesized NPs were highly affected by the initial concentration of CuSO(4)solution. The toxicity of nanocomposites to human keratinocytes (HaCaT) and antimicrobial activity against Gram-negativeEscherichia coliATCC 25922,E. coliATCC BAA 2469, andKlebsiella pneumoniaeATCC BAA 2146, and Gram-positive bacteriaStaphylococcus aureusATCC 25923,S. aureusATCC 43300 and yeastCandida albicansATCC 24433 strongly depended on the copper content. In addition to excellent antimicrobial activity, controlled release of Cu2+-ions from the fabrics into physiological saline solution was obtained.
PB  - Wiley, Hoboken
T2  - Journal of Applied Polymer Science
T1  - The influence of coating with aminopropyl triethoxysilane and CuO/Cu2O nanoparticles on antimicrobial activity of cotton fabrics under dark conditions
IS  - 40
VL  - 137
DO  - 10.1002/app.49194
ER  - 

@article{
author = "Marković, Darka and Vasiljević, Jelena and Ašanin, Jelena and Ilić‐Tomić, Tatjana and Tomšič, Brigita and Jokić, Bojan and Mitrić, Miodrag and Simončič, Barbara and Mišić, Dušan and Radetić, Maja",
year = "2020",
abstract = "A novel impregnation process for the fabrication of cotton nanocomposite with strong antimicrobial activity against antibiotics-resistant bacteria and yeast was developed. The impregnation process includes the sol-gel treatment of fabric with (3-aminopropyl)triethoxysilane in the first step, and synthesis of the CuO/Cu2O nanoparticles (NPs) on the fabric surface in the second step. The in situ synthesis of the CuO/Cu2O NPs was based on the adsorption of Cu2+-ions by the introduced amino groups of the sol-gel coating. The adsorbed Cu2+-ions are subsequently reduced in the alkaline solution of NaBH4. X-ray diffraction measurements confirmed the formation of CuO/Cu2O NPs. Scanning electron microscopy and atomic absorption spectrometry analyses indicate that the particle size, agglomeration, and amounts of synthesized NPs were highly affected by the initial concentration of CuSO(4)solution. The toxicity of nanocomposites to human keratinocytes (HaCaT) and antimicrobial activity against Gram-negativeEscherichia coliATCC 25922,E. coliATCC BAA 2469, andKlebsiella pneumoniaeATCC BAA 2146, and Gram-positive bacteriaStaphylococcus aureusATCC 25923,S. aureusATCC 43300 and yeastCandida albicansATCC 24433 strongly depended on the copper content. In addition to excellent antimicrobial activity, controlled release of Cu2+-ions from the fabrics into physiological saline solution was obtained.",
publisher = "Wiley, Hoboken",
journal = "Journal of Applied Polymer Science",
title = "The influence of coating with aminopropyl triethoxysilane and CuO/Cu2O nanoparticles on antimicrobial activity of cotton fabrics under dark conditions",
number = "40",
volume = "137",
doi = "10.1002/app.49194"
}

Marković, D., Vasiljević, J., Ašanin, J., Ilić‐Tomić, T., Tomšič, B., Jokić, B., Mitrić, M., Simončič, B., Mišić, D.,& Radetić, M.. (2020). The influence of coating with aminopropyl triethoxysilane and CuO/Cu2O nanoparticles on antimicrobial activity of cotton fabrics under dark conditions. in Journal of Applied Polymer Science
Wiley, Hoboken., 137(40).
https://doi.org/10.1002/app.49194

Marković D, Vasiljević J, Ašanin J, Ilić‐Tomić T, Tomšič B, Jokić B, Mitrić M, Simončič B, Mišić D, Radetić M. The influence of coating with aminopropyl triethoxysilane and CuO/Cu2O nanoparticles on antimicrobial activity of cotton fabrics under dark conditions. in Journal of Applied Polymer Science. 2020;137(40).
doi:10.1002/app.49194 .

Marković, Darka, Vasiljević, Jelena, Ašanin, Jelena, Ilić‐Tomić, Tatjana, Tomšič, Brigita, Jokić, Bojan, Mitrić, Miodrag, Simončič, Barbara, Mišić, Dušan, Radetić, Maja, "The influence of coating with aminopropyl triethoxysilane and CuO/Cu2O nanoparticles on antimicrobial activity of cotton fabrics under dark conditions" in Journal of Applied Polymer Science, 137, no. 40 (2020),
https://doi.org/10.1002/app.49194 . .

TY  - JOUR
AU  - Gvozdenović, Milica
AU  - Jugović, Branimir
AU  - Jokić, Bojan
AU  - Džunuzović, Enis
AU  - Grgur, Branimir
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4064
AB  - Poly(o-toluidine) (POT) is electrochemically synthesized on graphite electrode at constant current density of 1.5 mA cm(-2) from aqueous electrolyte of 1.0 mol dm(-3) H2SO4 and 0.25 mol dm(-3) o-toluidine. Electrochemical characterization of POT electrode is performed using cyclic voltammetry, Mot Schottky analysis and galvanostatic measurements at different currents. POT electrode exhibited high energy storage features, with specific energy up to 17.5 Wh kg(-1) and specific power up to 3300 W kg(-1). Cyclic stability exceeding 90% is obtained over 2000 charge/discharge cycles at 13.1 A g(-1) indicating the perspective application of POT electrode as energy storage material.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - Electrochemical synthesis and characterization of poly(o-toluidine) as high energy storage material
EP  - 752
SP  - 746
VL  - 317
DO  - 10.1016/j.electacta.2019.06.046
ER  - 

@article{
author = "Gvozdenović, Milica and Jugović, Branimir and Jokić, Bojan and Džunuzović, Enis and Grgur, Branimir",
year = "2019",
abstract = "Poly(o-toluidine) (POT) is electrochemically synthesized on graphite electrode at constant current density of 1.5 mA cm(-2) from aqueous electrolyte of 1.0 mol dm(-3) H2SO4 and 0.25 mol dm(-3) o-toluidine. Electrochemical characterization of POT electrode is performed using cyclic voltammetry, Mot Schottky analysis and galvanostatic measurements at different currents. POT electrode exhibited high energy storage features, with specific energy up to 17.5 Wh kg(-1) and specific power up to 3300 W kg(-1). Cyclic stability exceeding 90% is obtained over 2000 charge/discharge cycles at 13.1 A g(-1) indicating the perspective application of POT electrode as energy storage material.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "Electrochemical synthesis and characterization of poly(o-toluidine) as high energy storage material",
pages = "752-746",
volume = "317",
doi = "10.1016/j.electacta.2019.06.046"
}

Gvozdenović, M., Jugović, B., Jokić, B., Džunuzović, E.,& Grgur, B.. (2019). Electrochemical synthesis and characterization of poly(o-toluidine) as high energy storage material. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 317, 746-752.
https://doi.org/10.1016/j.electacta.2019.06.046

Gvozdenović M, Jugović B, Jokić B, Džunuzović E, Grgur B. Electrochemical synthesis and characterization of poly(o-toluidine) as high energy storage material. in Electrochimica Acta. 2019;317:746-752.
doi:10.1016/j.electacta.2019.06.046 .

Gvozdenović, Milica, Jugović, Branimir, Jokić, Bojan, Džunuzović, Enis, Grgur, Branimir, "Electrochemical synthesis and characterization of poly(o-toluidine) as high energy storage material" in Electrochimica Acta, 317 (2019):746-752,
https://doi.org/10.1016/j.electacta.2019.06.046 . .

TY  - JOUR
AU  - Marković, Darka
AU  - Jokić, Bojan
AU  - Radovanović, Željko
AU  - Ašanin, Jelena
AU  - Radoičić, Marija B.
AU  - Mitrić, Miodrag
AU  - Mišić, Dušan
AU  - Radetić, Maja
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4193
AB  - This study discusses the possibility of in situ synthesis of Cu-based nanoparticles (NPs) on cotton and viscose rayon fabrics previously modified with 1,2,3,4-butanetetracarboxylic acid (BTCA) of different concentrations, with the aim to obtain antibacterial protection. The changes in the chemical structure of the fibers caused by the modification with BTCA were assessed by FTIR spectroscopy. The higher the concentration of the applied BTCA, the larger the amounts of free carboxyl groups in both fabrics. AAS analysis showed that the samples modified with higher concentration of BTCA provided larger Cu2+-ions uptake and consequently, higher content of Cu after Cu2+-ions reduction. The presence of Cu-based NPs on the fabrics was confirmed by FESEM and EDS analyses. XRD analysis revealed that NPs appeared as a mixture of CuO and Cu2O. Synthesized NPs imparted excellent antibacterial activity to both fabrics against E. coli and S. aureus, including methicillin-resistant S. aureus.
PB  - Editura Acad Romane, Bucuresti
T2  - Cellulose Chemistry and Technology
T1  - Influence of 1,2,3,4-butanetetracarboxylic acid concentration on in situ synthesis of cuo/cu2o nanoparticles on cotton and viscose rayon fabrics
EP  - 813
IS  - 7-8
SP  - 805
VL  - 53
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4193
ER  - 

@article{
author = "Marković, Darka and Jokić, Bojan and Radovanović, Željko and Ašanin, Jelena and Radoičić, Marija B. and Mitrić, Miodrag and Mišić, Dušan and Radetić, Maja",
year = "2019",
abstract = "This study discusses the possibility of in situ synthesis of Cu-based nanoparticles (NPs) on cotton and viscose rayon fabrics previously modified with 1,2,3,4-butanetetracarboxylic acid (BTCA) of different concentrations, with the aim to obtain antibacterial protection. The changes in the chemical structure of the fibers caused by the modification with BTCA were assessed by FTIR spectroscopy. The higher the concentration of the applied BTCA, the larger the amounts of free carboxyl groups in both fabrics. AAS analysis showed that the samples modified with higher concentration of BTCA provided larger Cu2+-ions uptake and consequently, higher content of Cu after Cu2+-ions reduction. The presence of Cu-based NPs on the fabrics was confirmed by FESEM and EDS analyses. XRD analysis revealed that NPs appeared as a mixture of CuO and Cu2O. Synthesized NPs imparted excellent antibacterial activity to both fabrics against E. coli and S. aureus, including methicillin-resistant S. aureus.",
publisher = "Editura Acad Romane, Bucuresti",
journal = "Cellulose Chemistry and Technology",
title = "Influence of 1,2,3,4-butanetetracarboxylic acid concentration on in situ synthesis of cuo/cu2o nanoparticles on cotton and viscose rayon fabrics",
pages = "813-805",
number = "7-8",
volume = "53",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4193"
}

Marković, D., Jokić, B., Radovanović, Ž., Ašanin, J., Radoičić, M. B., Mitrić, M., Mišić, D.,& Radetić, M.. (2019). Influence of 1,2,3,4-butanetetracarboxylic acid concentration on in situ synthesis of cuo/cu2o nanoparticles on cotton and viscose rayon fabrics. in Cellulose Chemistry and Technology
Editura Acad Romane, Bucuresti., 53(7-8), 805-813.
https://hdl.handle.net/21.15107/rcub_technorep_4193

Marković D, Jokić B, Radovanović Ž, Ašanin J, Radoičić MB, Mitrić M, Mišić D, Radetić M. Influence of 1,2,3,4-butanetetracarboxylic acid concentration on in situ synthesis of cuo/cu2o nanoparticles on cotton and viscose rayon fabrics. in Cellulose Chemistry and Technology. 2019;53(7-8):805-813.
https://hdl.handle.net/21.15107/rcub_technorep_4193 .

Marković, Darka, Jokić, Bojan, Radovanović, Željko, Ašanin, Jelena, Radoičić, Marija B., Mitrić, Miodrag, Mišić, Dušan, Radetić, Maja, "Influence of 1,2,3,4-butanetetracarboxylic acid concentration on in situ synthesis of cuo/cu2o nanoparticles on cotton and viscose rayon fabrics" in Cellulose Chemistry and Technology, 53, no. 7-8 (2019):805-813,
https://hdl.handle.net/21.15107/rcub_technorep_4193 .

TY  - JOUR
AU  - Ahribesh, Aysha Ali
AU  - Lazarević, Slavica
AU  - Janković-Častvan, Ivona
AU  - Jokić, Bojan
AU  - Spasojević, Vojislav
AU  - Radetić, Tamara
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3667
AB  - The magnetic nanocomposites (MNCs), used as adsorbents for Cd2+ ions, were prepared by a co-precipitation method using both the untreated natural (SEP) and the partially acid-activated (ASEP) sepiolites as supports for magnetite. The synthesis conditions differed as follows: NaOH or NH3 was added in the SEP or the ASEP suspension before or after the addition of Fe3 and Fe2+. The SEP-based MNCs prepared using NaOH had a lower magnetization, but higher adsorption capacities than the MNCs synthesized using NH3. The order of the mixing of the reagents had a small influence on the properties of SEP-based MNCs, especially when NaOH was used for the synthesis. Due to acidity of the surface functional groups of the ASEP, the magnetic composite could be synthesized only when NH3 was added in the suspension of ASEP having Fe3+ and Fe2+ ions. Despite of the worse dispersibility of the magnetic particles, the adsorption capacityof the ASEP-based composite was higher than of the MNC with SEP prepared by the same procedure. All the MNCs showed a superparamagnetic behavior at room temperature and the adsorption capacities were higher than of pure compounds. The adsorption of Cd2+ on the composites was best fitted with the Sips model, which suggested the chemisorption on the heterogeneous surface at energetically non-uniform sites until a monolayer was formed.
PB  - Elsevier Science Bv, Amsterdam
T2  - Powder Technology
T1  - Influence of the synthesis parameters on the properties of the sepiolite-based magnetic adsorbents
EP  - 269
SP  - 260
VL  - 305
DO  - 10.1016/j.powtec.2016.09.086
ER  - 

@article{
author = "Ahribesh, Aysha Ali and Lazarević, Slavica and Janković-Častvan, Ivona and Jokić, Bojan and Spasojević, Vojislav and Radetić, Tamara and Janaćković, Đorđe and Petrović, Rada",
year = "2017",
abstract = "The magnetic nanocomposites (MNCs), used as adsorbents for Cd2+ ions, were prepared by a co-precipitation method using both the untreated natural (SEP) and the partially acid-activated (ASEP) sepiolites as supports for magnetite. The synthesis conditions differed as follows: NaOH or NH3 was added in the SEP or the ASEP suspension before or after the addition of Fe3 and Fe2+. The SEP-based MNCs prepared using NaOH had a lower magnetization, but higher adsorption capacities than the MNCs synthesized using NH3. The order of the mixing of the reagents had a small influence on the properties of SEP-based MNCs, especially when NaOH was used for the synthesis. Due to acidity of the surface functional groups of the ASEP, the magnetic composite could be synthesized only when NH3 was added in the suspension of ASEP having Fe3+ and Fe2+ ions. Despite of the worse dispersibility of the magnetic particles, the adsorption capacityof the ASEP-based composite was higher than of the MNC with SEP prepared by the same procedure. All the MNCs showed a superparamagnetic behavior at room temperature and the adsorption capacities were higher than of pure compounds. The adsorption of Cd2+ on the composites was best fitted with the Sips model, which suggested the chemisorption on the heterogeneous surface at energetically non-uniform sites until a monolayer was formed.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Powder Technology",
title = "Influence of the synthesis parameters on the properties of the sepiolite-based magnetic adsorbents",
pages = "269-260",
volume = "305",
doi = "10.1016/j.powtec.2016.09.086"
}

Ahribesh, A. A., Lazarević, S., Janković-Častvan, I., Jokić, B., Spasojević, V., Radetić, T., Janaćković, Đ.,& Petrović, R.. (2017). Influence of the synthesis parameters on the properties of the sepiolite-based magnetic adsorbents. in Powder Technology
Elsevier Science Bv, Amsterdam., 305, 260-269.
https://doi.org/10.1016/j.powtec.2016.09.086

Ahribesh AA, Lazarević S, Janković-Častvan I, Jokić B, Spasojević V, Radetić T, Janaćković Đ, Petrović R. Influence of the synthesis parameters on the properties of the sepiolite-based magnetic adsorbents. in Powder Technology. 2017;305:260-269.
doi:10.1016/j.powtec.2016.09.086 .

Ahribesh, Aysha Ali, Lazarević, Slavica, Janković-Častvan, Ivona, Jokić, Bojan, Spasojević, Vojislav, Radetić, Tamara, Janaćković, Đorđe, Petrović, Rada, "Influence of the synthesis parameters on the properties of the sepiolite-based magnetic adsorbents" in Powder Technology, 305 (2017):260-269,
https://doi.org/10.1016/j.powtec.2016.09.086 . .

TY  - JOUR
AU  - Habish, Amal Juma
AU  - Lazarević, Slavica
AU  - Janković-Častvan, Ivona
AU  - Jokić, Bojan
AU  - Kovač, Janez
AU  - Rogan, Jelena
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3676
AB  - Natural (SEP) and partially acid-activated (AAS) sepiolites were used to prepare composites with nanoscale zerovalent iron (nZVI) at different (SEP or AAS)/nZVI ratios in order to achieve the best nZVI dispersibility and the highest adsorption capacity for Cd2+. Despite the higher surface area and pore volume of AAS, better nZVI dispersibility was achieved by using SEP as the support. On the other hand, a lower oxidation degree was achieved during the synthesis using AAS. X-ray photoelectron spectroscopy (XPS) analysis of the composite with the best nZVI dispersibility, before and after Cd2+ adsorption, confirmed that the surface of the nZVI was composed of oxidized iron species. Metallic iron was not present on the surface, but it was detected in the subsurface region after sputtering. The content of zerovalent iron decreased after Cd2+ adsorption as a result of iron oxidation during Cd2+ adsorption. The XPS depth profile showed that cadmium was present not only at the surface of the composite but also in the subsurface region. The adsorption isotherms for Cd2+ confirmed that the presence of SEP and AAS decreased the agglomeration of the nZVI particles in comparison to the pure nZVI, which provided a higher adsorption capacity. The results showed that the prevention of both aggregation and oxidation during the synthesis was necessary for obtaining an SEP/AAS-nZVI composite with a high adsorption capacity, but oxidation during adsorption was beneficial for Cd2+ removal. The formation of strong bonds between Cd2+ and the adsorbents sites of different energy until monolayer formation was proposed according to modeling of the adsorption isotherms.
PB  - Springer Heidelberg, Heidelberg
T2  - Environmental Science and Pollution Research
T1  - Nanoscale zerovalent iron (nZVI) supported by natural and acid-activated sepiolites: the effect of the nZVI/support ratio on the composite properties and Cd2+ adsorption
EP  - 643
IS  - 1
SP  - 628
VL  - 24
DO  - 10.1007/s11356-016-7802-y
ER  - 

@article{
author = "Habish, Amal Juma and Lazarević, Slavica and Janković-Častvan, Ivona and Jokić, Bojan and Kovač, Janez and Rogan, Jelena and Janaćković, Đorđe and Petrović, Rada",
year = "2017",
abstract = "Natural (SEP) and partially acid-activated (AAS) sepiolites were used to prepare composites with nanoscale zerovalent iron (nZVI) at different (SEP or AAS)/nZVI ratios in order to achieve the best nZVI dispersibility and the highest adsorption capacity for Cd2+. Despite the higher surface area and pore volume of AAS, better nZVI dispersibility was achieved by using SEP as the support. On the other hand, a lower oxidation degree was achieved during the synthesis using AAS. X-ray photoelectron spectroscopy (XPS) analysis of the composite with the best nZVI dispersibility, before and after Cd2+ adsorption, confirmed that the surface of the nZVI was composed of oxidized iron species. Metallic iron was not present on the surface, but it was detected in the subsurface region after sputtering. The content of zerovalent iron decreased after Cd2+ adsorption as a result of iron oxidation during Cd2+ adsorption. The XPS depth profile showed that cadmium was present not only at the surface of the composite but also in the subsurface region. The adsorption isotherms for Cd2+ confirmed that the presence of SEP and AAS decreased the agglomeration of the nZVI particles in comparison to the pure nZVI, which provided a higher adsorption capacity. The results showed that the prevention of both aggregation and oxidation during the synthesis was necessary for obtaining an SEP/AAS-nZVI composite with a high adsorption capacity, but oxidation during adsorption was beneficial for Cd2+ removal. The formation of strong bonds between Cd2+ and the adsorbents sites of different energy until monolayer formation was proposed according to modeling of the adsorption isotherms.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Environmental Science and Pollution Research",
title = "Nanoscale zerovalent iron (nZVI) supported by natural and acid-activated sepiolites: the effect of the nZVI/support ratio on the composite properties and Cd2+ adsorption",
pages = "643-628",
number = "1",
volume = "24",
doi = "10.1007/s11356-016-7802-y"
}

Habish, A. J., Lazarević, S., Janković-Častvan, I., Jokić, B., Kovač, J., Rogan, J., Janaćković, Đ.,& Petrović, R.. (2017). Nanoscale zerovalent iron (nZVI) supported by natural and acid-activated sepiolites: the effect of the nZVI/support ratio on the composite properties and Cd2+ adsorption. in Environmental Science and Pollution Research
Springer Heidelberg, Heidelberg., 24(1), 628-643.
https://doi.org/10.1007/s11356-016-7802-y

Habish AJ, Lazarević S, Janković-Častvan I, Jokić B, Kovač J, Rogan J, Janaćković Đ, Petrović R. Nanoscale zerovalent iron (nZVI) supported by natural and acid-activated sepiolites: the effect of the nZVI/support ratio on the composite properties and Cd2+ adsorption. in Environmental Science and Pollution Research. 2017;24(1):628-643.
doi:10.1007/s11356-016-7802-y .

Habish, Amal Juma, Lazarević, Slavica, Janković-Častvan, Ivona, Jokić, Bojan, Kovač, Janez, Rogan, Jelena, Janaćković, Đorđe, Petrović, Rada, "Nanoscale zerovalent iron (nZVI) supported by natural and acid-activated sepiolites: the effect of the nZVI/support ratio on the composite properties and Cd2+ adsorption" in Environmental Science and Pollution Research, 24, no. 1 (2017):628-643,
https://doi.org/10.1007/s11356-016-7802-y . .

TY  - JOUR
AU  - Jakovetić Tanasković, Sonja
AU  - Jokić, Bojan
AU  - Grbavčić, Sanja
AU  - Drvenica, Ivana
AU  - Prlainović, Nevena
AU  - Luković, Nevena
AU  - Knežević-Jugović, Zorica
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3680
AB  - Lipase B from Candida antarctica was immobilized by adsorption onto laboratory prepared metakaolin. This support has great potential for enzyme immobilization since it has good mechanical characteristics and thermal stability and it is easily obtained from naturally abundant raw kaolin, as presented in this paper. Immobilization process was studied as a function of pH, ionic strength and protein concentration in terms of immobilization and activity yield. It was shown that immobilization occurred via the Langmuir model, and that electrostatic forces were major, but not exclusive contributor for the binding process. The optimum conditions were achieved in 10 mM acetic buffer pH 5. Biocatalyst obtained under optimum conditions was further successfully used in the synthesis of lipophilic antioxidants, where conversion yields as high as 100% were achieved.
PB  - Elsevier Science Bv, Amsterdam
T2  - Applied Clay Science
T1  - Immobilization of Candida antarctica lipase B on kaolin and its application in synthesis of lipophilic antioxidants
EP  - 111
SP  - 103
VL  - 135
DO  - 10.1016/j.clay.2016.09.011
ER  - 

@article{
author = "Jakovetić Tanasković, Sonja and Jokić, Bojan and Grbavčić, Sanja and Drvenica, Ivana and Prlainović, Nevena and Luković, Nevena and Knežević-Jugović, Zorica",
year = "2017",
abstract = "Lipase B from Candida antarctica was immobilized by adsorption onto laboratory prepared metakaolin. This support has great potential for enzyme immobilization since it has good mechanical characteristics and thermal stability and it is easily obtained from naturally abundant raw kaolin, as presented in this paper. Immobilization process was studied as a function of pH, ionic strength and protein concentration in terms of immobilization and activity yield. It was shown that immobilization occurred via the Langmuir model, and that electrostatic forces were major, but not exclusive contributor for the binding process. The optimum conditions were achieved in 10 mM acetic buffer pH 5. Biocatalyst obtained under optimum conditions was further successfully used in the synthesis of lipophilic antioxidants, where conversion yields as high as 100% were achieved.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Applied Clay Science",
title = "Immobilization of Candida antarctica lipase B on kaolin and its application in synthesis of lipophilic antioxidants",
pages = "111-103",
volume = "135",
doi = "10.1016/j.clay.2016.09.011"
}

Jakovetić Tanasković, S., Jokić, B., Grbavčić, S., Drvenica, I., Prlainović, N., Luković, N.,& Knežević-Jugović, Z.. (2017). Immobilization of Candida antarctica lipase B on kaolin and its application in synthesis of lipophilic antioxidants. in Applied Clay Science
Elsevier Science Bv, Amsterdam., 135, 103-111.
https://doi.org/10.1016/j.clay.2016.09.011

Jakovetić Tanasković S, Jokić B, Grbavčić S, Drvenica I, Prlainović N, Luković N, Knežević-Jugović Z. Immobilization of Candida antarctica lipase B on kaolin and its application in synthesis of lipophilic antioxidants. in Applied Clay Science. 2017;135:103-111.
doi:10.1016/j.clay.2016.09.011 .

Jakovetić Tanasković, Sonja, Jokić, Bojan, Grbavčić, Sanja, Drvenica, Ivana, Prlainović, Nevena, Luković, Nevena, Knežević-Jugović, Zorica, "Immobilization of Candida antarctica lipase B on kaolin and its application in synthesis of lipophilic antioxidants" in Applied Clay Science, 135 (2017):103-111,
https://doi.org/10.1016/j.clay.2016.09.011 . .

TY  - JOUR
AU  - Jugović, Dragana
AU  - Mitrić, Miodrag
AU  - Milović, Miloš
AU  - Cvjetićanin, Nikola
AU  - Jokić, Bojan
AU  - Umićević, Ana
AU  - Uskoković, Dragan
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5856
AB  - Low intrinsic electronic conductivity is the main disadvantage of LiFePO4 when used as a cathode material in lithium ion batteries. The paper offers experimental proofs of the theoretical prediction that fluorine doping of LiFePO4 can enhance its electrical conductivity. The LiFePO4 and fluorine-doped LiFePO4 olivine type, carbon-free powders are synthesized and examined. The crystal structure refinements in the Pnma space group reveal that doping with fluorine ions preserves the olivine structure, while reducing both the lattice parameters and the antisite defect, and increasing the crystallite size. A small amount of incorporated fluorine enhances the electrical conductivity from 4.6×10−7 S cm−1 to 2.3×10−6 S cm−1 and has a positive impact on the electrochemical performance. Several spectroscopy techniques (Mössbauer, FTIR, and Raman) reveal differences between the two powders and additionally support the findings of both the Rietveld refinement and the conductivity measurements.
PB  - Elsevier
T2  - Ceramics International
T1  - The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder
EP  - 3230
IS  - 3
SP  - 3224
VL  - 43
DO  - 10.1016/j.ceramint.2016.11.149
UR  - https://hdl.handle.net/21.15107/rcub_dais_2352
ER  - 

@article{
author = "Jugović, Dragana and Mitrić, Miodrag and Milović, Miloš and Cvjetićanin, Nikola and Jokić, Bojan and Umićević, Ana and Uskoković, Dragan",
year = "2017",
abstract = "Low intrinsic electronic conductivity is the main disadvantage of LiFePO4 when used as a cathode material in lithium ion batteries. The paper offers experimental proofs of the theoretical prediction that fluorine doping of LiFePO4 can enhance its electrical conductivity. The LiFePO4 and fluorine-doped LiFePO4 olivine type, carbon-free powders are synthesized and examined. The crystal structure refinements in the Pnma space group reveal that doping with fluorine ions preserves the olivine structure, while reducing both the lattice parameters and the antisite defect, and increasing the crystallite size. A small amount of incorporated fluorine enhances the electrical conductivity from 4.6×10−7 S cm−1 to 2.3×10−6 S cm−1 and has a positive impact on the electrochemical performance. Several spectroscopy techniques (Mössbauer, FTIR, and Raman) reveal differences between the two powders and additionally support the findings of both the Rietveld refinement and the conductivity measurements.",
publisher = "Elsevier",
journal = "Ceramics International",
title = "The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder",
pages = "3230-3224",
number = "3",
volume = "43",
doi = "10.1016/j.ceramint.2016.11.149",
url = "https://hdl.handle.net/21.15107/rcub_dais_2352"
}

Jugović, D., Mitrić, M., Milović, M., Cvjetićanin, N., Jokić, B., Umićević, A.,& Uskoković, D.. (2017). The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder. in Ceramics International
Elsevier., 43(3), 3224-3230.
https://doi.org/10.1016/j.ceramint.2016.11.149
https://hdl.handle.net/21.15107/rcub_dais_2352

Jugović D, Mitrić M, Milović M, Cvjetićanin N, Jokić B, Umićević A, Uskoković D. The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder. in Ceramics International. 2017;43(3):3224-3230.
doi:10.1016/j.ceramint.2016.11.149
https://hdl.handle.net/21.15107/rcub_dais_2352 .

Jugović, Dragana, Mitrić, Miodrag, Milović, Miloš, Cvjetićanin, Nikola, Jokić, Bojan, Umićević, Ana, Uskoković, Dragan, "The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder" in Ceramics International, 43, no. 3 (2017):3224-3230,
https://doi.org/10.1016/j.ceramint.2016.11.149 .,
https://hdl.handle.net/21.15107/rcub_dais_2352 .

TY  - JOUR
AU  - Jokić, Bojan
AU  - Džunuzović, Enis
AU  - Grgur, Branimir
AU  - Jugović, Branimir
AU  - Trišović, Tomislav
AU  - Stevanović, Jasmina
AU  - Gvozdenović, Milica
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3579
AB  - Poly(aniline-co-(m-aminobenzoic acid)) was synthesized electrochemically at graphite electrode under galvanostatic conditions. Aqueous electrolyte for synthesis was consisted of HCl and different amount of aniline and m-aminobenzoic acid. The presence of the meta positioned carboxylic group in m-aminobenzoic acid influenced higher co-polymerization potential, different morphology and electrochemical behavior of copolymers compared to polyaniline. Electrochemical activity is achieved by proton exchange in neutral environment that can result in a faster charge/discharge process, which is in the case of PANI limited by slow anion exchange, making this material promising for consideration in super-capacitors and in biological system.
PB  - Springer, Dordrecht
T2  - Journal of Polymer Research
T1  - The influence of m-aminobenzoic acid on electrochemical synthesis and behavior of poly(aniline-co-(m-aminobenzoic acid)
IS  - 9
VL  - 24
DO  - 10.1007/s10965-017-1313-5
ER  - 

@article{
author = "Jokić, Bojan and Džunuzović, Enis and Grgur, Branimir and Jugović, Branimir and Trišović, Tomislav and Stevanović, Jasmina and Gvozdenović, Milica",
year = "2017",
abstract = "Poly(aniline-co-(m-aminobenzoic acid)) was synthesized electrochemically at graphite electrode under galvanostatic conditions. Aqueous electrolyte for synthesis was consisted of HCl and different amount of aniline and m-aminobenzoic acid. The presence of the meta positioned carboxylic group in m-aminobenzoic acid influenced higher co-polymerization potential, different morphology and electrochemical behavior of copolymers compared to polyaniline. Electrochemical activity is achieved by proton exchange in neutral environment that can result in a faster charge/discharge process, which is in the case of PANI limited by slow anion exchange, making this material promising for consideration in super-capacitors and in biological system.",
publisher = "Springer, Dordrecht",
journal = "Journal of Polymer Research",
title = "The influence of m-aminobenzoic acid on electrochemical synthesis and behavior of poly(aniline-co-(m-aminobenzoic acid)",
number = "9",
volume = "24",
doi = "10.1007/s10965-017-1313-5"
}

Jokić, B., Džunuzović, E., Grgur, B., Jugović, B., Trišović, T., Stevanović, J.,& Gvozdenović, M.. (2017). The influence of m-aminobenzoic acid on electrochemical synthesis and behavior of poly(aniline-co-(m-aminobenzoic acid). in Journal of Polymer Research
Springer, Dordrecht., 24(9).
https://doi.org/10.1007/s10965-017-1313-5

Jokić B, Džunuzović E, Grgur B, Jugović B, Trišović T, Stevanović J, Gvozdenović M. The influence of m-aminobenzoic acid on electrochemical synthesis and behavior of poly(aniline-co-(m-aminobenzoic acid). in Journal of Polymer Research. 2017;24(9).
doi:10.1007/s10965-017-1313-5 .

Jokić, Bojan, Džunuzović, Enis, Grgur, Branimir, Jugović, Branimir, Trišović, Tomislav, Stevanović, Jasmina, Gvozdenović, Milica, "The influence of m-aminobenzoic acid on electrochemical synthesis and behavior of poly(aniline-co-(m-aminobenzoic acid)" in Journal of Polymer Research, 24, no. 9 (2017),
https://doi.org/10.1007/s10965-017-1313-5 . .

TY  - JOUR
AU  - Obradović, Vera
AU  - Stojanović, Dušica
AU  - Jokić, Bojan
AU  - Zrilić, Milorad
AU  - Radojević, Vesna
AU  - Uskoković, Petar
AU  - Aleksić, Radoslav
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3662
AB  - In this study carbon nanotubes (CNT) and silica nanoparticles (SiO2) were added to enhance the dynamic mechanical and anti-stabbing properties of the polyurethaneip-aramid multiaxial fabric (Kolon fabric) composites for ballistic protection. The SiO2 were modified (mSiO(2)) and CNT were oxidised (o-CNT) in order to fabricate o-CNT/mSiO(2) hybrid nanoparticles. Various kinds of nanoreinforcement particles were added into poly (vinyl butyral) (PVB)/ethanol solution. The results revealed that the films PVB/oMWCNT/mSiO(2) and PVB/o-SWCNT/mSiO(2) yielded 101% and 141% improvement in indentation hardness together with 89% and 117% improvement in reduced elastic modulus, respectively, compared to the neat PVB film. The experiments demonstrated that the Kolon/PVB/o-SWCNT/mSiO(2) fabric sample yielded 35% improvement in absorbed energy and 50% improvement in the storage modulus compared to the Kolon/PVB sample.
PB  - Elsevier Sci Ltd, Oxford
T2  - Composites Part B-Engineering
T1  - Nanomechanical and anti-stabbing properties of Kolon fabric composites reinforced with hybrid nanoparticles
EP  - 152
SP  - 143
VL  - 108
DO  - 10.1016/j.compositesb.2016.09.095
ER  - 

@article{
author = "Obradović, Vera and Stojanović, Dušica and Jokić, Bojan and Zrilić, Milorad and Radojević, Vesna and Uskoković, Petar and Aleksić, Radoslav",
year = "2017",
abstract = "In this study carbon nanotubes (CNT) and silica nanoparticles (SiO2) were added to enhance the dynamic mechanical and anti-stabbing properties of the polyurethaneip-aramid multiaxial fabric (Kolon fabric) composites for ballistic protection. The SiO2 were modified (mSiO(2)) and CNT were oxidised (o-CNT) in order to fabricate o-CNT/mSiO(2) hybrid nanoparticles. Various kinds of nanoreinforcement particles were added into poly (vinyl butyral) (PVB)/ethanol solution. The results revealed that the films PVB/oMWCNT/mSiO(2) and PVB/o-SWCNT/mSiO(2) yielded 101% and 141% improvement in indentation hardness together with 89% and 117% improvement in reduced elastic modulus, respectively, compared to the neat PVB film. The experiments demonstrated that the Kolon/PVB/o-SWCNT/mSiO(2) fabric sample yielded 35% improvement in absorbed energy and 50% improvement in the storage modulus compared to the Kolon/PVB sample.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Composites Part B-Engineering",
title = "Nanomechanical and anti-stabbing properties of Kolon fabric composites reinforced with hybrid nanoparticles",
pages = "152-143",
volume = "108",
doi = "10.1016/j.compositesb.2016.09.095"
}

Obradović, V., Stojanović, D., Jokić, B., Zrilić, M., Radojević, V., Uskoković, P.,& Aleksić, R.. (2017). Nanomechanical and anti-stabbing properties of Kolon fabric composites reinforced with hybrid nanoparticles. in Composites Part B-Engineering
Elsevier Sci Ltd, Oxford., 108, 143-152.
https://doi.org/10.1016/j.compositesb.2016.09.095

Obradović V, Stojanović D, Jokić B, Zrilić M, Radojević V, Uskoković P, Aleksić R. Nanomechanical and anti-stabbing properties of Kolon fabric composites reinforced with hybrid nanoparticles. in Composites Part B-Engineering. 2017;108:143-152.
doi:10.1016/j.compositesb.2016.09.095 .

Obradović, Vera, Stojanović, Dušica, Jokić, Bojan, Zrilić, Milorad, Radojević, Vesna, Uskoković, Petar, Aleksić, Radoslav, "Nanomechanical and anti-stabbing properties of Kolon fabric composites reinforced with hybrid nanoparticles" in Composites Part B-Engineering, 108 (2017):143-152,
https://doi.org/10.1016/j.compositesb.2016.09.095 . .

TY  - JOUR
AU  - Minović-Arsić, Tamara
AU  - Kalijadis, Ana
AU  - Matović, Branko
AU  - Stoiljković, Milovan
AU  - Pantić, Jelena R.
AU  - Jovanović, Jovan
AU  - Petrović, Rada
AU  - Jokić, Bojan
AU  - Babić, Biljana M.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3272
AB  - Carbon cryogel/ceria composite, with 10 wt.% of ceria, was synthesized by mixing of ceria and carbon cryogel (CC). The sample was characterized by field emission scanning electron microscopy, nitrogen adsorption and X-ray diffraction. The adsorption of arsenic(III) ions from aqueous solutions on carbon cryogel/ceria nanocomposite was studied as a function of time, solution pH and As(III) ion concentration. The results are correlated with previous investigations of adsorption mechanism of arsenic(III) on carbon cryogel. Adsorption dose experiments showed that the mass of the adsorbent was reduced for 20 times, in comparison with pure CC, for the same amount of adsorbed arsenic(III) ions. BET isotherm was used to interpret the experimental data for modelling liquid phase adsorption.
PB  - Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad
T2  - Processing and Application of Ceramics
T1  - Arsenic(III) adsorption from aqueous solutions on novel carbon cryogel/ceria nanocomposite
EP  - 23
IS  - 1
SP  - 17
VL  - 10
DO  - 10.2298/PAC1601017M
ER  - 

@article{
author = "Minović-Arsić, Tamara and Kalijadis, Ana and Matović, Branko and Stoiljković, Milovan and Pantić, Jelena R. and Jovanović, Jovan and Petrović, Rada and Jokić, Bojan and Babić, Biljana M.",
year = "2016",
abstract = "Carbon cryogel/ceria composite, with 10 wt.% of ceria, was synthesized by mixing of ceria and carbon cryogel (CC). The sample was characterized by field emission scanning electron microscopy, nitrogen adsorption and X-ray diffraction. The adsorption of arsenic(III) ions from aqueous solutions on carbon cryogel/ceria nanocomposite was studied as a function of time, solution pH and As(III) ion concentration. The results are correlated with previous investigations of adsorption mechanism of arsenic(III) on carbon cryogel. Adsorption dose experiments showed that the mass of the adsorbent was reduced for 20 times, in comparison with pure CC, for the same amount of adsorbed arsenic(III) ions. BET isotherm was used to interpret the experimental data for modelling liquid phase adsorption.",
publisher = "Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad",
journal = "Processing and Application of Ceramics",
title = "Arsenic(III) adsorption from aqueous solutions on novel carbon cryogel/ceria nanocomposite",
pages = "23-17",
number = "1",
volume = "10",
doi = "10.2298/PAC1601017M"
}

Minović-Arsić, T., Kalijadis, A., Matović, B., Stoiljković, M., Pantić, J. R., Jovanović, J., Petrović, R., Jokić, B.,& Babić, B. M.. (2016). Arsenic(III) adsorption from aqueous solutions on novel carbon cryogel/ceria nanocomposite. in Processing and Application of Ceramics
Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad., 10(1), 17-23.
https://doi.org/10.2298/PAC1601017M

Minović-Arsić T, Kalijadis A, Matović B, Stoiljković M, Pantić JR, Jovanović J, Petrović R, Jokić B, Babić BM. Arsenic(III) adsorption from aqueous solutions on novel carbon cryogel/ceria nanocomposite. in Processing and Application of Ceramics. 2016;10(1):17-23.
doi:10.2298/PAC1601017M .

Minović-Arsić, Tamara, Kalijadis, Ana, Matović, Branko, Stoiljković, Milovan, Pantić, Jelena R., Jovanović, Jovan, Petrović, Rada, Jokić, Bojan, Babić, Biljana M., "Arsenic(III) adsorption from aqueous solutions on novel carbon cryogel/ceria nanocomposite" in Processing and Application of Ceramics, 10, no. 1 (2016):17-23,
https://doi.org/10.2298/PAC1601017M . .

TY  - JOUR
AU  - Savić, Andrija B.
AU  - Čokeša, Đuro
AU  - Lazarević, Slavica
AU  - Jokić, Bojan
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
AU  - Živković, Ljiljana
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3356
AB  - This study demonstrates that PEG-assisted hydrothermal synthesis provides a convenient and eco-friendly route to fabrication of mesoporous magnetite with enhanced capacity for phosphate removal, excellent potential for magnetic separation and good reusability. Adsorption of phosphate onto 4 laboratory prepared magnetite powders was investigated in a systematic manner. Powders were synthesized in poly(ethylene) glycol-free or assisted conditions (PEGs 400 and 20,000 at varied PEG/water ratio), and characterized in terms of crystalline structure, and magnetic, morphological, textural, and acid-base properties. PEG acted as a powerful pore forming agent, the PEG/water ratio being the key factor in developing the surface area and mesoporosity of magnetite. Uptake capacity for phosphates increased with an increase in surface area and pore volume. PEG 20,000 at a ratio of 3:1 gave the best result. This mesoporous (D-max = 11 nm), nano-scale ( lt 10 nm) magnetite was ca. 9 times more efficient than nonporous micrometric powder derived from PEG-free synthesis (Langmuir maximum capacity, q(m) = 26.2 vs. 3.0 mg g(-1)). The adsorption was pH-dependent, in accord with variations in zeta potential of magnetite. Opposite shifts of isoelectric point and point of zero charge confirmed specific adsorption of phosphates at water/magnetite interface which proceeded via replacement of surface hydroxyls and sulfates.
PB  - Elsevier Science Bv, Amsterdam
T2  - Powder Technology
T1  - Tailoring of magnetite powder properties for enhanced phosphate removal: Effect of PEG addition in the synthesis process
EP  - 519
SP  - 511
VL  - 301
DO  - 10.1016/j.powtec.2016.06.028
ER  - 

@article{
author = "Savić, Andrija B. and Čokeša, Đuro and Lazarević, Slavica and Jokić, Bojan and Janaćković, Đorđe and Petrović, Rada and Živković, Ljiljana",
year = "2016",
abstract = "This study demonstrates that PEG-assisted hydrothermal synthesis provides a convenient and eco-friendly route to fabrication of mesoporous magnetite with enhanced capacity for phosphate removal, excellent potential for magnetic separation and good reusability. Adsorption of phosphate onto 4 laboratory prepared magnetite powders was investigated in a systematic manner. Powders were synthesized in poly(ethylene) glycol-free or assisted conditions (PEGs 400 and 20,000 at varied PEG/water ratio), and characterized in terms of crystalline structure, and magnetic, morphological, textural, and acid-base properties. PEG acted as a powerful pore forming agent, the PEG/water ratio being the key factor in developing the surface area and mesoporosity of magnetite. Uptake capacity for phosphates increased with an increase in surface area and pore volume. PEG 20,000 at a ratio of 3:1 gave the best result. This mesoporous (D-max = 11 nm), nano-scale ( lt 10 nm) magnetite was ca. 9 times more efficient than nonporous micrometric powder derived from PEG-free synthesis (Langmuir maximum capacity, q(m) = 26.2 vs. 3.0 mg g(-1)). The adsorption was pH-dependent, in accord with variations in zeta potential of magnetite. Opposite shifts of isoelectric point and point of zero charge confirmed specific adsorption of phosphates at water/magnetite interface which proceeded via replacement of surface hydroxyls and sulfates.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Powder Technology",
title = "Tailoring of magnetite powder properties for enhanced phosphate removal: Effect of PEG addition in the synthesis process",
pages = "519-511",
volume = "301",
doi = "10.1016/j.powtec.2016.06.028"
}

Savić, A. B., Čokeša, Đ., Lazarević, S., Jokić, B., Janaćković, Đ., Petrović, R.,& Živković, L.. (2016). Tailoring of magnetite powder properties for enhanced phosphate removal: Effect of PEG addition in the synthesis process. in Powder Technology
Elsevier Science Bv, Amsterdam., 301, 511-519.
https://doi.org/10.1016/j.powtec.2016.06.028

Savić AB, Čokeša Đ, Lazarević S, Jokić B, Janaćković Đ, Petrović R, Živković L. Tailoring of magnetite powder properties for enhanced phosphate removal: Effect of PEG addition in the synthesis process. in Powder Technology. 2016;301:511-519.
doi:10.1016/j.powtec.2016.06.028 .

Savić, Andrija B., Čokeša, Đuro, Lazarević, Slavica, Jokić, Bojan, Janaćković, Đorđe, Petrović, Rada, Živković, Ljiljana, "Tailoring of magnetite powder properties for enhanced phosphate removal: Effect of PEG addition in the synthesis process" in Powder Technology, 301 (2016):511-519,
https://doi.org/10.1016/j.powtec.2016.06.028 . .

TY  - JOUR
AU  - Lazarević, Slavica
AU  - Janković-Častvan, Ivona
AU  - Jokić, Bojan
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3455
AB  - The sorption of Ni2+ on sepiolite functionalized by covalent grafting of N-[3-(trimethoxysilyl) propyl] ethylenediamine triacetic acid trisodium salt, MSEAS, was studied in batch experiments as a function of the initial metal concentration, the equilibration time, the pH value and the temperature. The modification of sepiolite resulted in enhanced Ni2+ retention with a capacity of 0.261 mmol g(-1) at 298 K. The retention of Ni2+ occurred dominantly by specific sorption and exchange of Mg2+ from the sepiolite structure. The sorption process followed pseudo-second-order kinetics. The sorption equilibrium results were best described by the non-linear form of the Langmuir sorption equation. The values of the thermodynamic parameters (changes of enthalpy, free energy and entropy) were calculated from temperature dependent sorption isotherms and their values showed that the sorption of Ni2+ onto modified sepiolite was endothermic.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Sepiolite functionalized with N-[3-( trimethoxysilyl)propyl]-ethylenediamine triacetic acid trisodium salt. Part II: Sorption of Ni2+ from aqueous solutions
EP  - 208
IS  - 2
SP  - 197
VL  - 81
DO  - 10.2298/JSC150525086L
ER  - 

@article{
author = "Lazarević, Slavica and Janković-Častvan, Ivona and Jokić, Bojan and Janaćković, Đorđe and Petrović, Rada",
year = "2016",
abstract = "The sorption of Ni2+ on sepiolite functionalized by covalent grafting of N-[3-(trimethoxysilyl) propyl] ethylenediamine triacetic acid trisodium salt, MSEAS, was studied in batch experiments as a function of the initial metal concentration, the equilibration time, the pH value and the temperature. The modification of sepiolite resulted in enhanced Ni2+ retention with a capacity of 0.261 mmol g(-1) at 298 K. The retention of Ni2+ occurred dominantly by specific sorption and exchange of Mg2+ from the sepiolite structure. The sorption process followed pseudo-second-order kinetics. The sorption equilibrium results were best described by the non-linear form of the Langmuir sorption equation. The values of the thermodynamic parameters (changes of enthalpy, free energy and entropy) were calculated from temperature dependent sorption isotherms and their values showed that the sorption of Ni2+ onto modified sepiolite was endothermic.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Sepiolite functionalized with N-[3-( trimethoxysilyl)propyl]-ethylenediamine triacetic acid trisodium salt. Part II: Sorption of Ni2+ from aqueous solutions",
pages = "208-197",
number = "2",
volume = "81",
doi = "10.2298/JSC150525086L"
}

Lazarević, S., Janković-Častvan, I., Jokić, B., Janaćković, Đ.,& Petrović, R.. (2016). Sepiolite functionalized with N-[3-( trimethoxysilyl)propyl]-ethylenediamine triacetic acid trisodium salt. Part II: Sorption of Ni2+ from aqueous solutions. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 81(2), 197-208.
https://doi.org/10.2298/JSC150525086L

Lazarević S, Janković-Častvan I, Jokić B, Janaćković Đ, Petrović R. Sepiolite functionalized with N-[3-( trimethoxysilyl)propyl]-ethylenediamine triacetic acid trisodium salt. Part II: Sorption of Ni2+ from aqueous solutions. in Journal of the Serbian Chemical Society. 2016;81(2):197-208.
doi:10.2298/JSC150525086L .

Lazarević, Slavica, Janković-Častvan, Ivona, Jokić, Bojan, Janaćković, Đorđe, Petrović, Rada, "Sepiolite functionalized with N-[3-( trimethoxysilyl)propyl]-ethylenediamine triacetic acid trisodium salt. Part II: Sorption of Ni2+ from aqueous solutions" in Journal of the Serbian Chemical Society, 81, no. 2 (2016):197-208,
https://doi.org/10.2298/JSC150525086L . .

TY  - JOUR
AU  - Popov, Konstantin I.
AU  - Živković, Predrag M.
AU  - Jokić, Bojan
AU  - Nikolić, Nebojša D.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5846
AB  - The simulated shapes of the polarization curves were correlated with the type of metal electrodeposition process control as a function of the ratio of the exchange current density to the limiting diffusion current density (j(0)/j(L)). Diagnostic criteria based on the j(0)/j(L) ratios were established. For j(0)/j(L) > 100, the system is under the ohmic control. In the range 1  LT  j(0)/j(L)  LT = 100, there is mixed ohmic-diffusion control. Pure diffusion control appears in the range 0.1  LT  j(0)/j(L)  LT = 1. For j(0)/j(L)  LT = 0.1, the system is activation controlled at low overpotentials. The proposed diagnostic criteria were verified by comparison of the simulated curves with experimentally recorded ones and by morphological analysis of deposits obtained under the different types of control of the metal electrodeposition process.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - The shape of the polarization curve and diagnostic criteria for control of the metal electrodeposition process
EP  - 306
IS  - 3
SP  - 291
VL  - 81
DO  - 10.2298/JSC150717076P
ER  - 

@article{
author = "Popov, Konstantin I. and Živković, Predrag M. and Jokić, Bojan and Nikolić, Nebojša D.",
year = "2016",
abstract = "The simulated shapes of the polarization curves were correlated with the type of metal electrodeposition process control as a function of the ratio of the exchange current density to the limiting diffusion current density (j(0)/j(L)). Diagnostic criteria based on the j(0)/j(L) ratios were established. For j(0)/j(L) > 100, the system is under the ohmic control. In the range 1  LT  j(0)/j(L)  LT = 100, there is mixed ohmic-diffusion control. Pure diffusion control appears in the range 0.1  LT  j(0)/j(L)  LT = 1. For j(0)/j(L)  LT = 0.1, the system is activation controlled at low overpotentials. The proposed diagnostic criteria were verified by comparison of the simulated curves with experimentally recorded ones and by morphological analysis of deposits obtained under the different types of control of the metal electrodeposition process.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "The shape of the polarization curve and diagnostic criteria for control of the metal electrodeposition process",
pages = "306-291",
number = "3",
volume = "81",
doi = "10.2298/JSC150717076P"
}

Popov, K. I., Živković, P. M., Jokić, B.,& Nikolić, N. D.. (2016). The shape of the polarization curve and diagnostic criteria for control of the metal electrodeposition process. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 81(3), 291-306.
https://doi.org/10.2298/JSC150717076P

Popov KI, Živković PM, Jokić B, Nikolić ND. The shape of the polarization curve and diagnostic criteria for control of the metal electrodeposition process. in Journal of the Serbian Chemical Society. 2016;81(3):291-306.
doi:10.2298/JSC150717076P .

Popov, Konstantin I., Živković, Predrag M., Jokić, Bojan, Nikolić, Nebojša D., "The shape of the polarization curve and diagnostic criteria for control of the metal electrodeposition process" in Journal of the Serbian Chemical Society, 81, no. 3 (2016):291-306,
https://doi.org/10.2298/JSC150717076P . .

TY  - JOUR
AU  - Dimitrijević, Stevan
AU  - Lazarević, Zorica Z.
AU  - Rajčić-Vujasinović, Mirjana M.
AU  - Dimitrijević, Silvana
AU  - Petrović, M.
AU  - Gilić, Martina
AU  - Jokić, Bojan
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3314
AB  - The objective of this study was characterization of anodic film obtained when Ag43Cu37Zn20 alloy was treated electrochemically in 3.5% wt. NaCI under potentiostatic conditions. At the potential of +0.25 V a complex multilayer film is formed. XRD shows that it consists of CuCI and zinc hydroxichlorides with a small amount of Cu2O, probably formed in the film pores. The anodic film is a mixture of Cu2O, CuCI, Zn-5(OH)(8)center dot H2O and beta-Zn(OH)Cl. Phases of the alloy, Ag and Cu rich, show different anodic behavior. It was assumed that all phonon lines in the obtained Raman spectra were of the Lorentzian type, which is one of the common type of lines for this kind of analysis. Phases of Ag, CuCI, fl-Zn(OH)CI, Cu2O and Zn-5(OH)(8)(Cl)(2)center dot H2O were all registered by XRD.
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Optoelectronics and Advanced Materials-Rapid Communications
T1  - Raman spectroscopy study of anodic film on Ag43Cu37Zn20 alloy
EP  - 780
IS  - 9-10
SP  - 777
VL  - 10
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3314
ER  - 

@article{
author = "Dimitrijević, Stevan and Lazarević, Zorica Z. and Rajčić-Vujasinović, Mirjana M. and Dimitrijević, Silvana and Petrović, M. and Gilić, Martina and Jokić, Bojan",
year = "2016",
abstract = "The objective of this study was characterization of anodic film obtained when Ag43Cu37Zn20 alloy was treated electrochemically in 3.5% wt. NaCI under potentiostatic conditions. At the potential of +0.25 V a complex multilayer film is formed. XRD shows that it consists of CuCI and zinc hydroxichlorides with a small amount of Cu2O, probably formed in the film pores. The anodic film is a mixture of Cu2O, CuCI, Zn-5(OH)(8)center dot H2O and beta-Zn(OH)Cl. Phases of the alloy, Ag and Cu rich, show different anodic behavior. It was assumed that all phonon lines in the obtained Raman spectra were of the Lorentzian type, which is one of the common type of lines for this kind of analysis. Phases of Ag, CuCI, fl-Zn(OH)CI, Cu2O and Zn-5(OH)(8)(Cl)(2)center dot H2O were all registered by XRD.",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Optoelectronics and Advanced Materials-Rapid Communications",
title = "Raman spectroscopy study of anodic film on Ag43Cu37Zn20 alloy",
pages = "780-777",
number = "9-10",
volume = "10",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3314"
}

Dimitrijević, S., Lazarević, Z. Z., Rajčić-Vujasinović, M. M., Dimitrijević, S., Petrović, M., Gilić, M.,& Jokić, B.. (2016). Raman spectroscopy study of anodic film on Ag43Cu37Zn20 alloy. in Optoelectronics and Advanced Materials-Rapid Communications
Natl Inst Optoelectronics, Bucharest-Magurele., 10(9-10), 777-780.
https://hdl.handle.net/21.15107/rcub_technorep_3314

Dimitrijević S, Lazarević ZZ, Rajčić-Vujasinović MM, Dimitrijević S, Petrović M, Gilić M, Jokić B. Raman spectroscopy study of anodic film on Ag43Cu37Zn20 alloy. in Optoelectronics and Advanced Materials-Rapid Communications. 2016;10(9-10):777-780.
https://hdl.handle.net/21.15107/rcub_technorep_3314 .

Dimitrijević, Stevan, Lazarević, Zorica Z., Rajčić-Vujasinović, Mirjana M., Dimitrijević, Silvana, Petrović, M., Gilić, Martina, Jokić, Bojan, "Raman spectroscopy study of anodic film on Ag43Cu37Zn20 alloy" in Optoelectronics and Advanced Materials-Rapid Communications, 10, no. 9-10 (2016):777-780,
https://hdl.handle.net/21.15107/rcub_technorep_3314 .

TY  - JOUR
AU  - Đukić-Vuković, Aleksandra
AU  - Jokić, Bojan
AU  - Kocić-Tanackov, Sunčica
AU  - Pejin, Jelena
AU  - Mojović, Ljiljana
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3393
AB  - Biorefinery concept in lactic acid (LA) fermentation based on parallel production of LA and biomass enriched feed on a waste substrate was investigated. In this study, nitrogen opulent liquid stillage was used as a media for repeated batch L(+) LA fermentation by probiotic strain Lactobacillus rhamnosus ATCC 7469 immobilized onto non-modified and Mg-modified zeolite. The highest LA concentration of 47.60 g/L, overall productivity of 1.41 g/L/h, a yield of 0.86 g/g and yield coefficient of 0.96 g/g were obtained in fermentation with utilization of immobilized biocatalyst onto Mg-modified zeolite and Mg(OH)(2) as a neutralizing agent. Very high number of 8 x 10(10) CFU/g cells immobilized onto Mg-modified zeolite, proven beneficial effect of zeolite in animal health and probiotic characteristics of L. rhamnosus qualify solid remains after the fermentation as a high quality probiotic feed additive. High productivity of LA in the fermentation and valorization of the remains in animal nutrition could recommend this process which employs a simple modification of zeolite as a promising one for bio-based renewable LA production.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of the Taiwan Institute of Chemical Engineers
T1  - Mg-modified zeolite as a carrier for Lactobacillus rhamnosus in L(+) lactic acid production on distillery wastewater
EP  - 266
SP  - 262
VL  - 59
DO  - 10.1016/j.jtice.2015.07.035
ER  - 

@article{
author = "Đukić-Vuković, Aleksandra and Jokić, Bojan and Kocić-Tanackov, Sunčica and Pejin, Jelena and Mojović, Ljiljana",
year = "2016",
abstract = "Biorefinery concept in lactic acid (LA) fermentation based on parallel production of LA and biomass enriched feed on a waste substrate was investigated. In this study, nitrogen opulent liquid stillage was used as a media for repeated batch L(+) LA fermentation by probiotic strain Lactobacillus rhamnosus ATCC 7469 immobilized onto non-modified and Mg-modified zeolite. The highest LA concentration of 47.60 g/L, overall productivity of 1.41 g/L/h, a yield of 0.86 g/g and yield coefficient of 0.96 g/g were obtained in fermentation with utilization of immobilized biocatalyst onto Mg-modified zeolite and Mg(OH)(2) as a neutralizing agent. Very high number of 8 x 10(10) CFU/g cells immobilized onto Mg-modified zeolite, proven beneficial effect of zeolite in animal health and probiotic characteristics of L. rhamnosus qualify solid remains after the fermentation as a high quality probiotic feed additive. High productivity of LA in the fermentation and valorization of the remains in animal nutrition could recommend this process which employs a simple modification of zeolite as a promising one for bio-based renewable LA production.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of the Taiwan Institute of Chemical Engineers",
title = "Mg-modified zeolite as a carrier for Lactobacillus rhamnosus in L(+) lactic acid production on distillery wastewater",
pages = "266-262",
volume = "59",
doi = "10.1016/j.jtice.2015.07.035"
}

Đukić-Vuković, A., Jokić, B., Kocić-Tanackov, S., Pejin, J.,& Mojović, L.. (2016). Mg-modified zeolite as a carrier for Lactobacillus rhamnosus in L(+) lactic acid production on distillery wastewater. in Journal of the Taiwan Institute of Chemical Engineers
Elsevier Science Bv, Amsterdam., 59, 262-266.
https://doi.org/10.1016/j.jtice.2015.07.035

Đukić-Vuković A, Jokić B, Kocić-Tanackov S, Pejin J, Mojović L. Mg-modified zeolite as a carrier for Lactobacillus rhamnosus in L(+) lactic acid production on distillery wastewater. in Journal of the Taiwan Institute of Chemical Engineers. 2016;59:262-266.
doi:10.1016/j.jtice.2015.07.035 .

Đukić-Vuković, Aleksandra, Jokić, Bojan, Kocić-Tanackov, Sunčica, Pejin, Jelena, Mojović, Ljiljana, "Mg-modified zeolite as a carrier for Lactobacillus rhamnosus in L(+) lactic acid production on distillery wastewater" in Journal of the Taiwan Institute of Chemical Engineers, 59 (2016):262-266,
https://doi.org/10.1016/j.jtice.2015.07.035 . .

TY  - JOUR
AU  - Izrael-Živković, Lidija
AU  - Živković, Ljiljana S.
AU  - Beškoski, Vladimir
AU  - Gopčević, Kristina
AU  - Jokić, Bojan
AU  - Radosavljević, Dragoslav S.
AU  - Karadžić, Ivanka M.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5843
AB  - The immobilization of Candida rugosa lipase by adsorption was performed onto commercial titania powder (Degussa P25). The change of titania particles surface was diagnosed by means of FTIR and FESEM analysis, as well as by shift of zeta potential value towards that of lipase. A detailed study of the effect of immobilization on enzyme kinetic, temperature stability, as well as on potential for its reuse in aqueous organic media was undertaken. Immobilization of lipase altered enzyme affinity toward substrates with different length of carbon chain in hydrolytic reaction. The Vmax value decreased 2–8-fold, where major constraint was registered for the ester containing the longest carbon chain. Thermostability of lipase improved more than 7-fold at 60 °C. Significant potential for reuse in water solutions was also found after immobilization. In cyclohexane immobilized lipase catalyzed synthesis of amyl octanoate by ping-pong bi–bi mechanism with inhibition by amyl alcohol. Obtained kinetic constants were Vmax = 26.4 μmol min−1, KAc = 0.52 mol/L, KAl = 0.2 mol/L and Ki,Al = 0.644 mol/L. Esterification activity remained 60% after 5 reuse cycles in cyclohexane indicating moderate reuse stability. © 2017 Elsevier B.V.
T2  - Journal of Molecular Catalysis. B: Enzymatic
T1  - The Candida rugosa lipase adsorbed onto titania as nano biocatalyst with improved thermostability and reuse potential in aqueous and organic media
VL  - 133
DO  - 10.1016/j.molcatb.2017.06.001
ER  - 

@article{
author = "Izrael-Živković, Lidija and Živković, Ljiljana S. and Beškoski, Vladimir and Gopčević, Kristina and Jokić, Bojan and Radosavljević, Dragoslav S. and Karadžić, Ivanka M.",
year = "2016",
abstract = "The immobilization of Candida rugosa lipase by adsorption was performed onto commercial titania powder (Degussa P25). The change of titania particles surface was diagnosed by means of FTIR and FESEM analysis, as well as by shift of zeta potential value towards that of lipase. A detailed study of the effect of immobilization on enzyme kinetic, temperature stability, as well as on potential for its reuse in aqueous organic media was undertaken. Immobilization of lipase altered enzyme affinity toward substrates with different length of carbon chain in hydrolytic reaction. The Vmax value decreased 2–8-fold, where major constraint was registered for the ester containing the longest carbon chain. Thermostability of lipase improved more than 7-fold at 60 °C. Significant potential for reuse in water solutions was also found after immobilization. In cyclohexane immobilized lipase catalyzed synthesis of amyl octanoate by ping-pong bi–bi mechanism with inhibition by amyl alcohol. Obtained kinetic constants were Vmax = 26.4 μmol min−1, KAc = 0.52 mol/L, KAl = 0.2 mol/L and Ki,Al = 0.644 mol/L. Esterification activity remained 60% after 5 reuse cycles in cyclohexane indicating moderate reuse stability. © 2017 Elsevier B.V.",
journal = "Journal of Molecular Catalysis. B: Enzymatic",
title = "The Candida rugosa lipase adsorbed onto titania as nano biocatalyst with improved thermostability and reuse potential in aqueous and organic media",
volume = "133",
doi = "10.1016/j.molcatb.2017.06.001"
}

Izrael-Živković, L., Živković, L. S., Beškoski, V., Gopčević, K., Jokić, B., Radosavljević, D. S.,& Karadžić, I. M.. (2016). The Candida rugosa lipase adsorbed onto titania as nano biocatalyst with improved thermostability and reuse potential in aqueous and organic media. in Journal of Molecular Catalysis. B: Enzymatic, 133.
https://doi.org/10.1016/j.molcatb.2017.06.001

Izrael-Živković L, Živković LS, Beškoski V, Gopčević K, Jokić B, Radosavljević DS, Karadžić IM. The Candida rugosa lipase adsorbed onto titania as nano biocatalyst with improved thermostability and reuse potential in aqueous and organic media. in Journal of Molecular Catalysis. B: Enzymatic. 2016;133.
doi:10.1016/j.molcatb.2017.06.001 .

Izrael-Živković, Lidija, Živković, Ljiljana S., Beškoski, Vladimir, Gopčević, Kristina, Jokić, Bojan, Radosavljević, Dragoslav S., Karadžić, Ivanka M., "The Candida rugosa lipase adsorbed onto titania as nano biocatalyst with improved thermostability and reuse potential in aqueous and organic media" in Journal of Molecular Catalysis. B: Enzymatic, 133 (2016),
https://doi.org/10.1016/j.molcatb.2017.06.001 . .

TY  - JOUR
AU  - Radovanović, Mirjana N.
AU  - Jugović, Branimir
AU  - Gvozdenović, Milica
AU  - Jokić, Bojan
AU  - Grgur, Branimir
AU  - Bugarski, Branko
AU  - Knežević-Jugović, Zorica
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3228
AB  - The immobilization of alpha-amylase via adsorption on magnetic particles coated with polyaniline was studied. The support was characterized by field emission scanning electron microscopy (FESEM). The obtained magnetic particles were agglomerates of nanoparticles with sizes below 100 nm. The effects of various factors on immobilization, including time, the initial enzyme concentration, pH, and temperature, were examined. The optimum pH, temperature, and time for immobilization were established to be 7, 45 degrees C and 75 min, respectively. The maximum amount of adsorbed alpha-amylase of 10/100mg support was determined at the 5 mg/mL enzyme concentration. It appeared that alpha-amylase was stabilized in terms of pH and temperature by adsorption on magnetic particles coated with polyaniline. The good agreement of the equilibrium data with the Langmuir isotherm model confirmed the monolayer coverage of enzyme molecules on the surface of magnetic particles, and the maximum adsorption capacity was found to be 55.6/100mg support at 25 degrees C. The biocatalyst retained 55.5 +/- 1.63% of its initial activity after nine cycles of reuse in starch hydrolysis at 60 degrees C in a batch reactor. The immobilized enzyme also showed very good storage stability.
PB  - Wiley-VCH Verlag Gmbh, Weinheim
T2  - Starch-Starke
T1  - Immobilization of α-amylase via adsorption on magnetic particles coated with polyaniline
EP  - 435
IS  - 5-6
SP  - 427
VL  - 68
DO  - 10.1002/star.201500161
ER  - 

@article{
author = "Radovanović, Mirjana N. and Jugović, Branimir and Gvozdenović, Milica and Jokić, Bojan and Grgur, Branimir and Bugarski, Branko and Knežević-Jugović, Zorica",
year = "2016",
abstract = "The immobilization of alpha-amylase via adsorption on magnetic particles coated with polyaniline was studied. The support was characterized by field emission scanning electron microscopy (FESEM). The obtained magnetic particles were agglomerates of nanoparticles with sizes below 100 nm. The effects of various factors on immobilization, including time, the initial enzyme concentration, pH, and temperature, were examined. The optimum pH, temperature, and time for immobilization were established to be 7, 45 degrees C and 75 min, respectively. The maximum amount of adsorbed alpha-amylase of 10/100mg support was determined at the 5 mg/mL enzyme concentration. It appeared that alpha-amylase was stabilized in terms of pH and temperature by adsorption on magnetic particles coated with polyaniline. The good agreement of the equilibrium data with the Langmuir isotherm model confirmed the monolayer coverage of enzyme molecules on the surface of magnetic particles, and the maximum adsorption capacity was found to be 55.6/100mg support at 25 degrees C. The biocatalyst retained 55.5 +/- 1.63% of its initial activity after nine cycles of reuse in starch hydrolysis at 60 degrees C in a batch reactor. The immobilized enzyme also showed very good storage stability.",
publisher = "Wiley-VCH Verlag Gmbh, Weinheim",
journal = "Starch-Starke",
title = "Immobilization of α-amylase via adsorption on magnetic particles coated with polyaniline",
pages = "435-427",
number = "5-6",
volume = "68",
doi = "10.1002/star.201500161"
}

Radovanović, M. N., Jugović, B., Gvozdenović, M., Jokić, B., Grgur, B., Bugarski, B.,& Knežević-Jugović, Z.. (2016). Immobilization of α-amylase via adsorption on magnetic particles coated with polyaniline. in Starch-Starke
Wiley-VCH Verlag Gmbh, Weinheim., 68(5-6), 427-435.
https://doi.org/10.1002/star.201500161

Radovanović MN, Jugović B, Gvozdenović M, Jokić B, Grgur B, Bugarski B, Knežević-Jugović Z. Immobilization of α-amylase via adsorption on magnetic particles coated with polyaniline. in Starch-Starke. 2016;68(5-6):427-435.
doi:10.1002/star.201500161 .

Radovanović, Mirjana N., Jugović, Branimir, Gvozdenović, Milica, Jokić, Bojan, Grgur, Branimir, Bugarski, Branko, Knežević-Jugović, Zorica, "Immobilization of α-amylase via adsorption on magnetic particles coated with polyaniline" in Starch-Starke, 68, no. 5-6 (2016):427-435,
https://doi.org/10.1002/star.201500161 . .

TY  - JOUR
AU  - Ležaja, Maja
AU  - Jokić, Bojan
AU  - Veljović, Đorđe
AU  - Miletić, Vesna
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3276
AB  - The aim of this study was to compare the effect of hydroxyapatite (HAP) nano-rods (HAP rods) and HAP nano-sticks (HAP sticks) added to commercial adhesives on the macro-shear bond strength (SBS) to dentine and morphology of the adhesive-dentine interface. HAP was added to Single Bond Universal (SBU, 3M ESPE) and Te-Econom Bond (TeE; Ivoclar Vivadent), in the form of water suspensions to avoid agglomeration of nano-particles and to achieve HAP concentrations of 0.5, 1.0 and 1.5 wt%. Following a 'total-etch' or a 'self-etch' protocol, the adhesives were applied to flat dentine surface of 162 intact human, third molars (N = 6/group). Composite (Z250, 3M ESPE) was built-up using a split stainless steel mould, 3 mm in diameter. SBS was tested using a universal testing machine at 1 mm/min until fracture. Data were statistically analysed using two-way and one-way analysis of variance with Tukey's post-test (alpha = 0.05). HAP(rods) had no significant effect on SBS of the tested adhesives while HAP(sticks) improved bond strength to dentine only of adhesives applied following the 'total-etch' total-etch protocol. SBS values of SBU containing 1% HAP(sticks) (15.10 +/- 2.96 MPa) and TeE containing 0.5% HAP(sticks) applied following the total-etch protocol (12.96 +/- 4.48 MPa) were higher than those of their respective control groups (10.36 +/- 2.68 and 7.97 +/- 3.64 MPa). Samples with higher SBS showed more 'mixed' failures. HAP nano-fillers may improve bond strength of total-etch adhesives without an adverse effect on adhesive dispersion on dentine and its ability to infiltrate dentinal tubules.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Journal of Adhesion Science and Technology
T1  - Shear bond strength to dentine of dental adhesives containing hydroxyapatite nano-fillers
EP  - 2689
IS  - 24
SP  - 2678
VL  - 30
DO  - 10.1080/01694243.2016.1197086
ER  - 

@article{
author = "Ležaja, Maja and Jokić, Bojan and Veljović, Đorđe and Miletić, Vesna",
year = "2016",
abstract = "The aim of this study was to compare the effect of hydroxyapatite (HAP) nano-rods (HAP rods) and HAP nano-sticks (HAP sticks) added to commercial adhesives on the macro-shear bond strength (SBS) to dentine and morphology of the adhesive-dentine interface. HAP was added to Single Bond Universal (SBU, 3M ESPE) and Te-Econom Bond (TeE; Ivoclar Vivadent), in the form of water suspensions to avoid agglomeration of nano-particles and to achieve HAP concentrations of 0.5, 1.0 and 1.5 wt%. Following a 'total-etch' or a 'self-etch' protocol, the adhesives were applied to flat dentine surface of 162 intact human, third molars (N = 6/group). Composite (Z250, 3M ESPE) was built-up using a split stainless steel mould, 3 mm in diameter. SBS was tested using a universal testing machine at 1 mm/min until fracture. Data were statistically analysed using two-way and one-way analysis of variance with Tukey's post-test (alpha = 0.05). HAP(rods) had no significant effect on SBS of the tested adhesives while HAP(sticks) improved bond strength to dentine only of adhesives applied following the 'total-etch' total-etch protocol. SBS values of SBU containing 1% HAP(sticks) (15.10 +/- 2.96 MPa) and TeE containing 0.5% HAP(sticks) applied following the total-etch protocol (12.96 +/- 4.48 MPa) were higher than those of their respective control groups (10.36 +/- 2.68 and 7.97 +/- 3.64 MPa). Samples with higher SBS showed more 'mixed' failures. HAP nano-fillers may improve bond strength of total-etch adhesives without an adverse effect on adhesive dispersion on dentine and its ability to infiltrate dentinal tubules.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Journal of Adhesion Science and Technology",
title = "Shear bond strength to dentine of dental adhesives containing hydroxyapatite nano-fillers",
pages = "2689-2678",
number = "24",
volume = "30",
doi = "10.1080/01694243.2016.1197086"
}

Ležaja, M., Jokić, B., Veljović, Đ.,& Miletić, V.. (2016). Shear bond strength to dentine of dental adhesives containing hydroxyapatite nano-fillers. in Journal of Adhesion Science and Technology
Taylor & Francis Ltd, Abingdon., 30(24), 2678-2689.
https://doi.org/10.1080/01694243.2016.1197086

Ležaja M, Jokić B, Veljović Đ, Miletić V. Shear bond strength to dentine of dental adhesives containing hydroxyapatite nano-fillers. in Journal of Adhesion Science and Technology. 2016;30(24):2678-2689.
doi:10.1080/01694243.2016.1197086 .

Ležaja, Maja, Jokić, Bojan, Veljović, Đorđe, Miletić, Vesna, "Shear bond strength to dentine of dental adhesives containing hydroxyapatite nano-fillers" in Journal of Adhesion Science and Technology, 30, no. 24 (2016):2678-2689,
https://doi.org/10.1080/01694243.2016.1197086 . .

TY  - JOUR
AU  - Gulicovski, Jelena
AU  - Bajat, Jelena
AU  - Jokić, Bojan
AU  - Panić, V.
AU  - Mišković-Stanković, Vesna
AU  - Milonjić, Slobodan K.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3375
AB  - Ceria coating is formed on Al from the ceria sol prepared exclusively by forced hydrolysis of Ce(NO3)(4), in order to test their ability to protect Al from corrosion. The characterization of sol-gel-processed ceria coating and coating/Al assembly brings new issues on Al corrosion and protection caused by unique properties of the sol-gel coating. The corrosion behaviour of bare Al and Al/CeO2 is investigated by the electrochemical impedance spectroscopy (EIS) during the exposure to NaCl aqueous solution. The morphology and composition of the samples are examined by scanning electron microscopy and energy dispersive spectroscopy. EIS data showed greater corrosion resistance of CeO2-coated aluminium in comparison to bare Al at long exposure times. CeO2 coating does not hinder completely the corrosion processes on Al. The Al beneath CeO2 coating is subjected to intrinsic formation of a uniform protective coating/Al interphase, cross-linked by AlO(OH) fibre-like structures. They appear created by corrosive medium from the coating reversely gelled by NaCl solution. As the fibre network is created during exposure, Al becomes better protected than by spontaneous formation of porous passive layer of Al(OH)(3) on bare aluminium. Sol-gel ceria coatings thus improve corrosion resistance of aluminium during prolonged exposure to corrosive medium.
PB  - Springer, New York
T2  - Journal of Solid State Electrochemistry
T1  - Protective ability and impedance response of sol-gel reversely transformed ceria conversion coating on aluminium
EP  - 303
IS  - 1
SP  - 293
VL  - 20
DO  - 10.1007/s10008-015-3040-3
ER  - 

@article{
author = "Gulicovski, Jelena and Bajat, Jelena and Jokić, Bojan and Panić, V. and Mišković-Stanković, Vesna and Milonjić, Slobodan K.",
year = "2016",
abstract = "Ceria coating is formed on Al from the ceria sol prepared exclusively by forced hydrolysis of Ce(NO3)(4), in order to test their ability to protect Al from corrosion. The characterization of sol-gel-processed ceria coating and coating/Al assembly brings new issues on Al corrosion and protection caused by unique properties of the sol-gel coating. The corrosion behaviour of bare Al and Al/CeO2 is investigated by the electrochemical impedance spectroscopy (EIS) during the exposure to NaCl aqueous solution. The morphology and composition of the samples are examined by scanning electron microscopy and energy dispersive spectroscopy. EIS data showed greater corrosion resistance of CeO2-coated aluminium in comparison to bare Al at long exposure times. CeO2 coating does not hinder completely the corrosion processes on Al. The Al beneath CeO2 coating is subjected to intrinsic formation of a uniform protective coating/Al interphase, cross-linked by AlO(OH) fibre-like structures. They appear created by corrosive medium from the coating reversely gelled by NaCl solution. As the fibre network is created during exposure, Al becomes better protected than by spontaneous formation of porous passive layer of Al(OH)(3) on bare aluminium. Sol-gel ceria coatings thus improve corrosion resistance of aluminium during prolonged exposure to corrosive medium.",
publisher = "Springer, New York",
journal = "Journal of Solid State Electrochemistry",
title = "Protective ability and impedance response of sol-gel reversely transformed ceria conversion coating on aluminium",
pages = "303-293",
number = "1",
volume = "20",
doi = "10.1007/s10008-015-3040-3"
}

Gulicovski, J., Bajat, J., Jokić, B., Panić, V., Mišković-Stanković, V.,& Milonjić, S. K.. (2016). Protective ability and impedance response of sol-gel reversely transformed ceria conversion coating on aluminium. in Journal of Solid State Electrochemistry
Springer, New York., 20(1), 293-303.
https://doi.org/10.1007/s10008-015-3040-3

Gulicovski J, Bajat J, Jokić B, Panić V, Mišković-Stanković V, Milonjić SK. Protective ability and impedance response of sol-gel reversely transformed ceria conversion coating on aluminium. in Journal of Solid State Electrochemistry. 2016;20(1):293-303.
doi:10.1007/s10008-015-3040-3 .

Gulicovski, Jelena, Bajat, Jelena, Jokić, Bojan, Panić, V., Mišković-Stanković, Vesna, Milonjić, Slobodan K., "Protective ability and impedance response of sol-gel reversely transformed ceria conversion coating on aluminium" in Journal of Solid State Electrochemistry, 20, no. 1 (2016):293-303,
https://doi.org/10.1007/s10008-015-3040-3 . .

TY  - JOUR
AU  - Mihajlović, Marija T.
AU  - Lazarević, Slavica
AU  - Janković-Častvan, Ivona
AU  - Kovač, Janez
AU  - Jokić, Bojan
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3035
AB  - The adsorption of Pb2+, Cd2+, and Zn2+ from equimolar multicomponent solutions onto natural and Fe(III)-modified zeolites was studied by batch experiments in order to determine the influence of the competitive effect on the efficiency ions removal at different initial concentrations and different temperatures. Kinetic and equilibrium studies showed that affinity of both zeolites was the highest for Pb2+ and much lower for Zn2+ and Cd2+. The competitive effect was negligible at lower concentrations, while Zn2+ and especially Cd2+ ions adsorption was suppressed as the concentrations were increased. Affinity of natural zeolite toward the ions was lower than that of the modified zeolite, as was shown for adsorption from single-component solutions. External film diffusion was the rate-controlling step at lower concentrations and for ions of higher affinity for the adsorbent, while intraparticle diffusion was dominant at higher concentrations and for ions of lower affinity for the adsorbent. The increasing spontaneity of the adsorption process with increasing temperature and the positive values of enthalpy of adsorption indicated the endothermic nature of the adsorption process. Structural investigations of the adsorbents loaded with Pb2+, Cd2+, and Zn2+ ions by X-ray photoelectron spectroscopy (XPS) confirmed the higher content of the ions in the surface and subsurface regions of the Fe(III)-modified than of the natural zeolite. XPS depth profiles of the loaded Fe(III)-modified zeolite showed that surface mechanisms of adsorption were dominant in the case of lead and cadmium, while zinc loading on the zeolite sample was governed mainly by an ion-exchange process.
PB  - Springer, New York
T2  - Clean Technologies and Environmental Policy
T1  - Kinetics, thermodynamics, and structural investigations on the removal of Pb2+, Cd2+, and Zn2+ from multicomponent solutions onto natural and Fe(III)-modified zeolites
EP  - 419
IS  - 2
SP  - 407
VL  - 17
DO  - 10.1007/s10098-014-0794-8
ER  - 

@article{
author = "Mihajlović, Marija T. and Lazarević, Slavica and Janković-Častvan, Ivona and Kovač, Janez and Jokić, Bojan and Janaćković, Đorđe and Petrović, Rada",
year = "2015",
abstract = "The adsorption of Pb2+, Cd2+, and Zn2+ from equimolar multicomponent solutions onto natural and Fe(III)-modified zeolites was studied by batch experiments in order to determine the influence of the competitive effect on the efficiency ions removal at different initial concentrations and different temperatures. Kinetic and equilibrium studies showed that affinity of both zeolites was the highest for Pb2+ and much lower for Zn2+ and Cd2+. The competitive effect was negligible at lower concentrations, while Zn2+ and especially Cd2+ ions adsorption was suppressed as the concentrations were increased. Affinity of natural zeolite toward the ions was lower than that of the modified zeolite, as was shown for adsorption from single-component solutions. External film diffusion was the rate-controlling step at lower concentrations and for ions of higher affinity for the adsorbent, while intraparticle diffusion was dominant at higher concentrations and for ions of lower affinity for the adsorbent. The increasing spontaneity of the adsorption process with increasing temperature and the positive values of enthalpy of adsorption indicated the endothermic nature of the adsorption process. Structural investigations of the adsorbents loaded with Pb2+, Cd2+, and Zn2+ ions by X-ray photoelectron spectroscopy (XPS) confirmed the higher content of the ions in the surface and subsurface regions of the Fe(III)-modified than of the natural zeolite. XPS depth profiles of the loaded Fe(III)-modified zeolite showed that surface mechanisms of adsorption were dominant in the case of lead and cadmium, while zinc loading on the zeolite sample was governed mainly by an ion-exchange process.",
publisher = "Springer, New York",
journal = "Clean Technologies and Environmental Policy",
title = "Kinetics, thermodynamics, and structural investigations on the removal of Pb2+, Cd2+, and Zn2+ from multicomponent solutions onto natural and Fe(III)-modified zeolites",
pages = "419-407",
number = "2",
volume = "17",
doi = "10.1007/s10098-014-0794-8"
}

Mihajlović, M. T., Lazarević, S., Janković-Častvan, I., Kovač, J., Jokić, B., Janaćković, Đ.,& Petrović, R.. (2015). Kinetics, thermodynamics, and structural investigations on the removal of Pb2+, Cd2+, and Zn2+ from multicomponent solutions onto natural and Fe(III)-modified zeolites. in Clean Technologies and Environmental Policy
Springer, New York., 17(2), 407-419.
https://doi.org/10.1007/s10098-014-0794-8

Mihajlović MT, Lazarević S, Janković-Častvan I, Kovač J, Jokić B, Janaćković Đ, Petrović R. Kinetics, thermodynamics, and structural investigations on the removal of Pb2+, Cd2+, and Zn2+ from multicomponent solutions onto natural and Fe(III)-modified zeolites. in Clean Technologies and Environmental Policy. 2015;17(2):407-419.
doi:10.1007/s10098-014-0794-8 .

Mihajlović, Marija T., Lazarević, Slavica, Janković-Častvan, Ivona, Kovač, Janez, Jokić, Bojan, Janaćković, Đorđe, Petrović, Rada, "Kinetics, thermodynamics, and structural investigations on the removal of Pb2+, Cd2+, and Zn2+ from multicomponent solutions onto natural and Fe(III)-modified zeolites" in Clean Technologies and Environmental Policy, 17, no. 2 (2015):407-419,
https://doi.org/10.1007/s10098-014-0794-8 . .

TY  - JOUR
AU  - Lazarević, Slavica
AU  - Janković-Častvan, Ivona
AU  - Jokić, Bojan
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3112
AB  - Natural sepiolite from Andrici (Serbia) was functionalized by covalent grafting of N-[3-(trimethoxysilyl)propyl]ethylenediamine triacetic acid trisodium salt onto the Si-OH sepiolite groups. The functionalized material, MSEAS, was characterized by determination of the phase composition by X-ray diffraction (XRD) analysis, analysis of the morphological characteristics by scanning electron microscopy (SEM), using Fourier transform infrared (FTIR) spectroscopy, differential thermal analyses (DTA), determination of the specific surface areas and pore size distribution using the BET method and point of zero charge (pH(pzc)) determination. The crystal structure of sepiolite did not change significantly upon surface modification. The FT-IR and DTA analyses confirmed that the modified sample maintained the basic structure of sepiolite and the presence of organic groups in the functionalized sepiolite sample. The point of zero charge of MSEAS in KNO3 solutions of different concentrations, determined by the batch technique, was at pH 7.0 +/- 0.1.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Sepiolite functionalized with N-[3-(trimethoxysilyl)propyl]ethylenediamine triacetic acid trisodium salt. Part I: Preparation and characterization
EP  - 1202
IS  - 9
SP  - 1193
VL  - 80
DO  - 10.2298/JSC150219038L
ER  - 

@article{
author = "Lazarević, Slavica and Janković-Častvan, Ivona and Jokić, Bojan and Janaćković, Đorđe and Petrović, Rada",
year = "2015",
abstract = "Natural sepiolite from Andrici (Serbia) was functionalized by covalent grafting of N-[3-(trimethoxysilyl)propyl]ethylenediamine triacetic acid trisodium salt onto the Si-OH sepiolite groups. The functionalized material, MSEAS, was characterized by determination of the phase composition by X-ray diffraction (XRD) analysis, analysis of the morphological characteristics by scanning electron microscopy (SEM), using Fourier transform infrared (FTIR) spectroscopy, differential thermal analyses (DTA), determination of the specific surface areas and pore size distribution using the BET method and point of zero charge (pH(pzc)) determination. The crystal structure of sepiolite did not change significantly upon surface modification. The FT-IR and DTA analyses confirmed that the modified sample maintained the basic structure of sepiolite and the presence of organic groups in the functionalized sepiolite sample. The point of zero charge of MSEAS in KNO3 solutions of different concentrations, determined by the batch technique, was at pH 7.0 +/- 0.1.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Sepiolite functionalized with N-[3-(trimethoxysilyl)propyl]ethylenediamine triacetic acid trisodium salt. Part I: Preparation and characterization",
pages = "1202-1193",
number = "9",
volume = "80",
doi = "10.2298/JSC150219038L"
}

Lazarević, S., Janković-Častvan, I., Jokić, B., Janaćković, Đ.,& Petrović, R.. (2015). Sepiolite functionalized with N-[3-(trimethoxysilyl)propyl]ethylenediamine triacetic acid trisodium salt. Part I: Preparation and characterization. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 80(9), 1193-1202.
https://doi.org/10.2298/JSC150219038L

Lazarević S, Janković-Častvan I, Jokić B, Janaćković Đ, Petrović R. Sepiolite functionalized with N-[3-(trimethoxysilyl)propyl]ethylenediamine triacetic acid trisodium salt. Part I: Preparation and characterization. in Journal of the Serbian Chemical Society. 2015;80(9):1193-1202.
doi:10.2298/JSC150219038L .

Lazarević, Slavica, Janković-Častvan, Ivona, Jokić, Bojan, Janaćković, Đorđe, Petrović, Rada, "Sepiolite functionalized with N-[3-(trimethoxysilyl)propyl]ethylenediamine triacetic acid trisodium salt. Part I: Preparation and characterization" in Journal of the Serbian Chemical Society, 80, no. 9 (2015):1193-1202,
https://doi.org/10.2298/JSC150219038L . .

TY  - JOUR
AU  - Marković, Darka
AU  - Milovanović, Stoja
AU  - Radetić, Maja
AU  - Jokić, Bojan
AU  - Žižović, Irena
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2990
AB  - This study discusses the possibility of impregnation of polypropylene (PP) and corona modified PP non-woven material with thymol in supercritical solvent in order to fabricate eco-friendly antimicrobial textile material. Carbon dioxide was used as a working fluid. The morphological changes on the PP fiber surface induced by corona treatment at atmospheric pressure as well as the presence of thymol on the fiber surface after impregnation were confirmed by FESEM analysis. Chemical changes were assessed by FTIR analysis. Antimicrobial activity of the modified PP non-woven material was tested against Gram-positive bacterium Staphylococcus aureus, Gram-negative bacterium Escherichia coli and fungus Candida albicans. Although both PP non-woven material impregnated with thymol and corona activated PP impregnated with thymol provided maximum microbial reduction, corona pre-treated material was much faster wetted, which could be an advantage in wound healing.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Supercritical Fluids
T1  - Impregnation of corona modified polypropylene non-woven material with thymol in supercritical carbon dioxide for antimicrobial application
EP  - 221
SP  - 215
VL  - 101
DO  - 10.1016/j.supflu.2015.03.022
ER  - 

@article{
author = "Marković, Darka and Milovanović, Stoja and Radetić, Maja and Jokić, Bojan and Žižović, Irena",
year = "2015",
abstract = "This study discusses the possibility of impregnation of polypropylene (PP) and corona modified PP non-woven material with thymol in supercritical solvent in order to fabricate eco-friendly antimicrobial textile material. Carbon dioxide was used as a working fluid. The morphological changes on the PP fiber surface induced by corona treatment at atmospheric pressure as well as the presence of thymol on the fiber surface after impregnation were confirmed by FESEM analysis. Chemical changes were assessed by FTIR analysis. Antimicrobial activity of the modified PP non-woven material was tested against Gram-positive bacterium Staphylococcus aureus, Gram-negative bacterium Escherichia coli and fungus Candida albicans. Although both PP non-woven material impregnated with thymol and corona activated PP impregnated with thymol provided maximum microbial reduction, corona pre-treated material was much faster wetted, which could be an advantage in wound healing.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Supercritical Fluids",
title = "Impregnation of corona modified polypropylene non-woven material with thymol in supercritical carbon dioxide for antimicrobial application",
pages = "221-215",
volume = "101",
doi = "10.1016/j.supflu.2015.03.022"
}

Marković, D., Milovanović, S., Radetić, M., Jokić, B.,& Žižović, I.. (2015). Impregnation of corona modified polypropylene non-woven material with thymol in supercritical carbon dioxide for antimicrobial application. in Journal of Supercritical Fluids
Elsevier Science Bv, Amsterdam., 101, 215-221.
https://doi.org/10.1016/j.supflu.2015.03.022

Marković D, Milovanović S, Radetić M, Jokić B, Žižović I. Impregnation of corona modified polypropylene non-woven material with thymol in supercritical carbon dioxide for antimicrobial application. in Journal of Supercritical Fluids. 2015;101:215-221.
doi:10.1016/j.supflu.2015.03.022 .

Marković, Darka, Milovanović, Stoja, Radetić, Maja, Jokić, Bojan, Žižović, Irena, "Impregnation of corona modified polypropylene non-woven material with thymol in supercritical carbon dioxide for antimicrobial application" in Journal of Supercritical Fluids, 101 (2015):215-221,
https://doi.org/10.1016/j.supflu.2015.03.022 . .

TY  - JOUR
AU  - Kuzmanović, Maja
AU  - Jugović, Dragana
AU  - Mitrić, Miodrag
AU  - Jokić, Bojan
AU  - Cvjetićanin, Nikola
AU  - Uskoković, Dragan
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5807
AB  - Olivine-type LiFePO4 composite powders with carbon were synthesized by freeze drying and subsequent thermal annealing. The main purpose of the research is to explore how various dicarboxylic acids as carbon sources influence the electrochemical properties of the resulting composites. Three dicarboxylic acids (oxalic, malonic, and adipic) were used as a carbon source. The synthesis was followed by X-ray powder diffraction, scanning electron microscopy, particle-size analysis, and electrochemical experiments. It is shown that the amount of the in situ formed carbon depends on the thermal behaviour of the acids in inert atmosphere rather than on their carbon content. Cyclic voltammetry experiments and galvanostatic cycling illustrate the behaviour of different powders: the powder obtained with oxalic acid yields the highest discharge capacity at small currents, while the one obtained with adipic acid shows better high-current response. Malonic acid has turned out to be a poor carbon source and it consequently yields powder with poor electrochemical performance. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
PB  - Elsevier Ltd.
T2  - Ceramics International
T1  - The use of various dicarboxylic acids as a carbon source for the preparation of LiFePO4/C composite
EP  - 6758
IS  - 5
SP  - 6753
VL  - 41
DO  - 10.1016/j.ceramint.2015.01.121
UR  - https://hdl.handle.net/21.15107/rcub_dais_2590
ER  - 

@article{
author = "Kuzmanović, Maja and Jugović, Dragana and Mitrić, Miodrag and Jokić, Bojan and Cvjetićanin, Nikola and Uskoković, Dragan",
year = "2015",
abstract = "Olivine-type LiFePO4 composite powders with carbon were synthesized by freeze drying and subsequent thermal annealing. The main purpose of the research is to explore how various dicarboxylic acids as carbon sources influence the electrochemical properties of the resulting composites. Three dicarboxylic acids (oxalic, malonic, and adipic) were used as a carbon source. The synthesis was followed by X-ray powder diffraction, scanning electron microscopy, particle-size analysis, and electrochemical experiments. It is shown that the amount of the in situ formed carbon depends on the thermal behaviour of the acids in inert atmosphere rather than on their carbon content. Cyclic voltammetry experiments and galvanostatic cycling illustrate the behaviour of different powders: the powder obtained with oxalic acid yields the highest discharge capacity at small currents, while the one obtained with adipic acid shows better high-current response. Malonic acid has turned out to be a poor carbon source and it consequently yields powder with poor electrochemical performance. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
publisher = "Elsevier Ltd.",
journal = "Ceramics International",
title = "The use of various dicarboxylic acids as a carbon source for the preparation of LiFePO4/C composite",
pages = "6758-6753",
number = "5",
volume = "41",
doi = "10.1016/j.ceramint.2015.01.121",
url = "https://hdl.handle.net/21.15107/rcub_dais_2590"
}

Kuzmanović, M., Jugović, D., Mitrić, M., Jokić, B., Cvjetićanin, N.,& Uskoković, D.. (2015). The use of various dicarboxylic acids as a carbon source for the preparation of LiFePO4/C composite. in Ceramics International
Elsevier Ltd.., 41(5), 6753-6758.
https://doi.org/10.1016/j.ceramint.2015.01.121
https://hdl.handle.net/21.15107/rcub_dais_2590

Kuzmanović M, Jugović D, Mitrić M, Jokić B, Cvjetićanin N, Uskoković D. The use of various dicarboxylic acids as a carbon source for the preparation of LiFePO4/C composite. in Ceramics International. 2015;41(5):6753-6758.
doi:10.1016/j.ceramint.2015.01.121
https://hdl.handle.net/21.15107/rcub_dais_2590 .

Kuzmanović, Maja, Jugović, Dragana, Mitrić, Miodrag, Jokić, Bojan, Cvjetićanin, Nikola, Uskoković, Dragan, "The use of various dicarboxylic acids as a carbon source for the preparation of LiFePO4/C composite" in Ceramics International, 41, no. 5 (2015):6753-6758,
https://doi.org/10.1016/j.ceramint.2015.01.121 .,
https://hdl.handle.net/21.15107/rcub_dais_2590 .

TY  - JOUR
AU  - Popović, Nataša
AU  - Jugović, Branimir
AU  - Jokić, Bojan
AU  - Knežević-Jugović, Zorica
AU  - Stevanović, Jasmina
AU  - Grgur, Branimir
AU  - Gvozdenović, Milica
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3007
AB  - Electrochemical formation of polyaniline (PANI) modified electrode was performed galvanostatically from aqueous solution of 1.0 mol dm(-3) HCl containing 0.2 mol dm(-3) aniline at current densities ranging from 0.5-3.0 mA cm(-2). The morphology of PANI electrode consisted of highly developed nanofibrous network with electrocatalytic features towards oxidation of ascorbic acid, reflected in increase of the peak current similar to 2.5 times and shift of the oxidation potential by 0.32 V to less positive values. Response of PANI modified electrode was obtained from anodic LSV curves. Current peak potentials decreased with increase of pH with slope of similar to 32 mV pH(-1), indicating two electron charge transfer process with liberation of one proton characteristic of an electrochemical reaction followed by a chemical step.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination
EP  - 1220
IS  - 2
SP  - 1208
VL  - 10
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3007
ER  - 

@article{
author = "Popović, Nataša and Jugović, Branimir and Jokić, Bojan and Knežević-Jugović, Zorica and Stevanović, Jasmina and Grgur, Branimir and Gvozdenović, Milica",
year = "2015",
abstract = "Electrochemical formation of polyaniline (PANI) modified electrode was performed galvanostatically from aqueous solution of 1.0 mol dm(-3) HCl containing 0.2 mol dm(-3) aniline at current densities ranging from 0.5-3.0 mA cm(-2). The morphology of PANI electrode consisted of highly developed nanofibrous network with electrocatalytic features towards oxidation of ascorbic acid, reflected in increase of the peak current similar to 2.5 times and shift of the oxidation potential by 0.32 V to less positive values. Response of PANI modified electrode was obtained from anodic LSV curves. Current peak potentials decreased with increase of pH with slope of similar to 32 mV pH(-1), indicating two electron charge transfer process with liberation of one proton characteristic of an electrochemical reaction followed by a chemical step.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination",
pages = "1220-1208",
number = "2",
volume = "10",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3007"
}

Popović, N., Jugović, B., Jokić, B., Knežević-Jugović, Z., Stevanović, J., Grgur, B.,& Gvozdenović, M.. (2015). Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 10(2), 1208-1220.
https://hdl.handle.net/21.15107/rcub_technorep_3007

Popović N, Jugović B, Jokić B, Knežević-Jugović Z, Stevanović J, Grgur B, Gvozdenović M. Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination. in International Journal of Electrochemical Science. 2015;10(2):1208-1220.
https://hdl.handle.net/21.15107/rcub_technorep_3007 .

Popović, Nataša, Jugović, Branimir, Jokić, Bojan, Knežević-Jugović, Zorica, Stevanović, Jasmina, Grgur, Branimir, Gvozdenović, Milica, "Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination" in International Journal of Electrochemical Science, 10, no. 2 (2015):1208-1220,
https://hdl.handle.net/21.15107/rcub_technorep_3007 .