TY  - JOUR
AU  - Filipović, Vuk
AU  - Babić Radić, Marija M.
AU  - Vuković, Jovana S.
AU  - Vukomanović, Marija
AU  - Rubert, Marina
AU  - Hofmann, Sandra
AU  - Müller, Ralph
AU  - Tomić, Simonida Lj.
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5309
AB  - New composite 3D scaffolds were developed as a combination of synthetic polymer, poly(2-
hydroxyethyl methacrylate) (PHEMA), and a natural polymer, gelatin, with a ceramic component,
nanohydroxyapatite (ID nHAp) dopped with metal ions. The combination of a synthetic polymer,
to be able to tune the structure and the physicochemical and mechanical properties, and a natural
polymer, to ensure the specific biological functions of the scaffold, with inorganic filler was applied.
The goal was to make a new material with superior properties for applications in the biomedical
field which mimics as closely as possible the native bone extracellular matrix (ECM). Biodegrad able PHEMA hydrogel was obtained by crosslinking HEMA by poly(β-amino esters) (PBAE). The
scaffold’s physicochemical and mechanical properties, in vitro degradation, and biological activity
were assessed so to study the effects of the incorporation of nHAp in the (PHEMA/PBAE/gelatin)
hydrogel, as well as the effect of the different pore-forming methods. Cryogels had higher elasticity,
swelling, porosity, and percent of mass loss during degradation than the samples obtained by poro genation. The composite scaffolds had a higher mechanical strength, 10.14 MPa for the porogenated
samples and 5.87 MPa for the cryogels, but a slightly lower degree of swelling, percent of mass loss,
and porosity than the hybrid ones. All the scaffolds were nontoxic and had a high cell adhesion rate,
which was 15–20% higher in the composite samples. Cell metabolic activity after 2 and 7 days of
culture was higher in the composites, although not statistically different. After 28 days, cell metabolic
activity was similar in all scaffolds and the TCP control. No effect of integrating nHAp into the
scaffolds on osteogenic cell differentiation could be observed. Synergetic effects occurred which
influenced the mechanical behavior, structure, physicochemical properties, and interactions with
biological species.
PB  - MDPI
T2  - Polymers
T1  - Biodegradable Hydrogel Scaffolds Based on 2-Hydroxyethyl Methacrylate, Gelatin, Poly(β-amino esters), and Hydroxyapatite
VL  - 14
IS  - 1
SP  - 18
DO  - 10.3390/polym14010018
ER  - 

@article{
author = "Filipović, Vuk and Babić Radić, Marija M. and Vuković, Jovana S. and Vukomanović, Marija and Rubert, Marina and Hofmann, Sandra and Müller, Ralph and Tomić, Simonida Lj.",
year = "2022",
abstract = "New composite 3D scaffolds were developed as a combination of synthetic polymer, poly(2-
hydroxyethyl methacrylate) (PHEMA), and a natural polymer, gelatin, with a ceramic component,
nanohydroxyapatite (ID nHAp) dopped with metal ions. The combination of a synthetic polymer,
to be able to tune the structure and the physicochemical and mechanical properties, and a natural
polymer, to ensure the specific biological functions of the scaffold, with inorganic filler was applied.
The goal was to make a new material with superior properties for applications in the biomedical
field which mimics as closely as possible the native bone extracellular matrix (ECM). Biodegrad able PHEMA hydrogel was obtained by crosslinking HEMA by poly(β-amino esters) (PBAE). The
scaffold’s physicochemical and mechanical properties, in vitro degradation, and biological activity
were assessed so to study the effects of the incorporation of nHAp in the (PHEMA/PBAE/gelatin)
hydrogel, as well as the effect of the different pore-forming methods. Cryogels had higher elasticity,
swelling, porosity, and percent of mass loss during degradation than the samples obtained by poro genation. The composite scaffolds had a higher mechanical strength, 10.14 MPa for the porogenated
samples and 5.87 MPa for the cryogels, but a slightly lower degree of swelling, percent of mass loss,
and porosity than the hybrid ones. All the scaffolds were nontoxic and had a high cell adhesion rate,
which was 15–20% higher in the composite samples. Cell metabolic activity after 2 and 7 days of
culture was higher in the composites, although not statistically different. After 28 days, cell metabolic
activity was similar in all scaffolds and the TCP control. No effect of integrating nHAp into the
scaffolds on osteogenic cell differentiation could be observed. Synergetic effects occurred which
influenced the mechanical behavior, structure, physicochemical properties, and interactions with
biological species.",
publisher = "MDPI",
journal = "Polymers",
title = "Biodegradable Hydrogel Scaffolds Based on 2-Hydroxyethyl Methacrylate, Gelatin, Poly(β-amino esters), and Hydroxyapatite",
volume = "14",
number = "1",
pages = "18",
doi = "10.3390/polym14010018"
}

Filipović, V., Babić Radić, M. M., Vuković, J. S., Vukomanović, M., Rubert, M., Hofmann, S., Müller, R.,& Tomić, S. Lj.. (2022). Biodegradable Hydrogel Scaffolds Based on 2-Hydroxyethyl Methacrylate, Gelatin, Poly(β-amino esters), and Hydroxyapatite. in Polymers
MDPI., 14(1), 18.
https://doi.org/10.3390/polym14010018

Filipović V, Babić Radić MM, Vuković JS, Vukomanović M, Rubert M, Hofmann S, Müller R, Tomić SL. Biodegradable Hydrogel Scaffolds Based on 2-Hydroxyethyl Methacrylate, Gelatin, Poly(β-amino esters), and Hydroxyapatite. in Polymers. 2022;14(1):18.
doi:10.3390/polym14010018 .

Filipović, Vuk, Babić Radić, Marija M., Vuković, Jovana S., Vukomanović, Marija, Rubert, Marina, Hofmann, Sandra, Müller, Ralph, Tomić, Simonida Lj., "Biodegradable Hydrogel Scaffolds Based on 2-Hydroxyethyl Methacrylate, Gelatin, Poly(β-amino esters), and Hydroxyapatite" in Polymers, 14, no. 1 (2022):18,
https://doi.org/10.3390/polym14010018 . .

TY  - JOUR
AU  - Babić Radić, Marija M.
AU  - Filipović, Vuk V.
AU  - Vuković, Jovana S.
AU  - Vukomanović, Marija
AU  - Rubert, Marina
AU  - Hofmann, Sandra
AU  - Müller, Ralph
AU  - Tomić, Simonida Lj.
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5391
AB  - Our goal was to create bioimitated scaffolding materials for biomedical purposes. The guiding idea was that we used an interpenetrating structural hierarchy of natural extracellular matrix as a “pattern” to design hydrogel scaffolds that show favorable properties for tissue regeneration. Polymeric hydrogel scaffolds are made in a simple, environmentally friendly way without additional functionalization. Gelatin and 2-hydroxyethyl methacrylate were selected to prepare interpenetrating polymeric networks and linear alginate chains were added as an interpenetrant to study their influence on the scaffold’s functionalities. Cryogelation and porogenation methods were used to obtain the designed scaffolding biomaterials. The scaffold’s structural, morphological, and mechanical properties, in vitro degradation, and cell viability properties were assessed to study the effects of the preparation method and alginate loading. Apatite as an inorganic agent was incorporated into cryogelated scaffolds to perform an extensive biological assay. Cryogelated scaffolds possess superior functionalities essential for tissue regeneration: fully hydrophilicity, degradability and mechanical features (2.08–9.75 MPa), and an optimal LDH activity. Furthermore, cryogelated scaffolds loaded with apatite showed good cell adhesion capacity, biocompatibility, and non-toxic behavior. All scaffolds performed equally in terms of metabolic activity and osteoconductivity. Cryogelated scaffolds with/without HAp could represent a new advance to promote osteoconductivity and enhance hard tissue repair. The obtained series of scaffolding biomaterials described here can provide a wide range of potential applications in the area of biomedical engineering.
PB  - Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)
T2  - Polymers
T1  - Bioactive Interpenetrating Hydrogel Networks Based on 2-Hydroxyethyl Methacrylate and Gelatin Intertwined with Alginate and Dopped with Apatite as Scaffolding Biomaterials
VL  - 14
IS  - 15
SP  - 3112
DO  - 10.3390/polym14153112
ER  - 

@article{
author = "Babić Radić, Marija M. and Filipović, Vuk V. and Vuković, Jovana S. and Vukomanović, Marija and Rubert, Marina and Hofmann, Sandra and Müller, Ralph and Tomić, Simonida Lj.",
year = "2022",
abstract = "Our goal was to create bioimitated scaffolding materials for biomedical purposes. The guiding idea was that we used an interpenetrating structural hierarchy of natural extracellular matrix as a “pattern” to design hydrogel scaffolds that show favorable properties for tissue regeneration. Polymeric hydrogel scaffolds are made in a simple, environmentally friendly way without additional functionalization. Gelatin and 2-hydroxyethyl methacrylate were selected to prepare interpenetrating polymeric networks and linear alginate chains were added as an interpenetrant to study their influence on the scaffold’s functionalities. Cryogelation and porogenation methods were used to obtain the designed scaffolding biomaterials. The scaffold’s structural, morphological, and mechanical properties, in vitro degradation, and cell viability properties were assessed to study the effects of the preparation method and alginate loading. Apatite as an inorganic agent was incorporated into cryogelated scaffolds to perform an extensive biological assay. Cryogelated scaffolds possess superior functionalities essential for tissue regeneration: fully hydrophilicity, degradability and mechanical features (2.08–9.75 MPa), and an optimal LDH activity. Furthermore, cryogelated scaffolds loaded with apatite showed good cell adhesion capacity, biocompatibility, and non-toxic behavior. All scaffolds performed equally in terms of metabolic activity and osteoconductivity. Cryogelated scaffolds with/without HAp could represent a new advance to promote osteoconductivity and enhance hard tissue repair. The obtained series of scaffolding biomaterials described here can provide a wide range of potential applications in the area of biomedical engineering.",
publisher = "Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)",
journal = "Polymers",
title = "Bioactive Interpenetrating Hydrogel Networks Based on 2-Hydroxyethyl Methacrylate and Gelatin Intertwined with Alginate and Dopped with Apatite as Scaffolding Biomaterials",
volume = "14",
number = "15",
pages = "3112",
doi = "10.3390/polym14153112"
}

Babić Radić, M. M., Filipović, V. V., Vuković, J. S., Vukomanović, M., Rubert, M., Hofmann, S., Müller, R.,& Tomić, S. Lj.. (2022). Bioactive Interpenetrating Hydrogel Networks Based on 2-Hydroxyethyl Methacrylate and Gelatin Intertwined with Alginate and Dopped with Apatite as Scaffolding Biomaterials. in Polymers
Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)., 14(15), 3112.
https://doi.org/10.3390/polym14153112

Babić Radić MM, Filipović VV, Vuković JS, Vukomanović M, Rubert M, Hofmann S, Müller R, Tomić SL. Bioactive Interpenetrating Hydrogel Networks Based on 2-Hydroxyethyl Methacrylate and Gelatin Intertwined with Alginate and Dopped with Apatite as Scaffolding Biomaterials. in Polymers. 2022;14(15):3112.
doi:10.3390/polym14153112 .

Babić Radić, Marija M., Filipović, Vuk V., Vuković, Jovana S., Vukomanović, Marija, Rubert, Marina, Hofmann, Sandra, Müller, Ralph, Tomić, Simonida Lj., "Bioactive Interpenetrating Hydrogel Networks Based on 2-Hydroxyethyl Methacrylate and Gelatin Intertwined with Alginate and Dopped with Apatite as Scaffolding Biomaterials" in Polymers, 14, no. 15 (2022):3112,
https://doi.org/10.3390/polym14153112 . .

TY  - JOUR
AU  - Marković, Maja
AU  - Panić, Vesna
AU  - Šešlija, Sanja
AU  - Milivojević, Ana D.
AU  - Spasojević, Pavle
AU  - Bošković-Vragolović, Nevenka
AU  - Pjanović, Rada
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3604
AB  - Carriers for targeted delivery and controlled release of poorly water-soluble active
substances (PWSAS) are facing three challenges: (a) the encapsulation issues, (b)
limitations of PWSAS water solubility, and (c) burst drug release which can be
pharmacologically dangerous and economically inefficient. The present study
brings a novel strategy for encapsulation and controlled release of PWSAS—
caffeine in concentrations which are higher than its maximal water solubility
without the possibility of burst effect. The modification of hydrophilic carrier
based on poly(methacylic acid) was done using casein and liposomes. To further
increase the maximal caffeine loading inside the carrier nicotinamide was used.
The release study of the encapsulated PWSAS was elaborated with respect to morphology
of the carriers and interactions that could be established between its
structural components. The carriers swelling and the release of caffeine and nicotinamide
were also investigated depending on caffeine concentration, the presence
of different liposomal formulations and the volume ratio of liposomal formulation,
in three media with different pH simulating the path of the carrier through the
human gastrointestinal tract. The synthesized carriers are promising candidates
for encapsulation of PWSAS in concentrations which are higher than its maximal
water solubility and for the targeted delivery of those dosages.
PB  - Wiley
T2  - Polymer Engineering & Science
T1  - Novel strategy for encapsulation and targeted delivery of poorly water-soluble active substances
VL  - 60
SP  - 2008
EP  - 2022
DO  - 10.1002/pen.25448
ER  - 

@article{
author = "Marković, Maja and Panić, Vesna and Šešlija, Sanja and Milivojević, Ana D. and Spasojević, Pavle and Bošković-Vragolović, Nevenka and Pjanović, Rada",
year = "2020",
abstract = "Carriers for targeted delivery and controlled release of poorly water-soluble active
substances (PWSAS) are facing three challenges: (a) the encapsulation issues, (b)
limitations of PWSAS water solubility, and (c) burst drug release which can be
pharmacologically dangerous and economically inefficient. The present study
brings a novel strategy for encapsulation and controlled release of PWSAS—
caffeine in concentrations which are higher than its maximal water solubility
without the possibility of burst effect. The modification of hydrophilic carrier
based on poly(methacylic acid) was done using casein and liposomes. To further
increase the maximal caffeine loading inside the carrier nicotinamide was used.
The release study of the encapsulated PWSAS was elaborated with respect to morphology
of the carriers and interactions that could be established between its
structural components. The carriers swelling and the release of caffeine and nicotinamide
were also investigated depending on caffeine concentration, the presence
of different liposomal formulations and the volume ratio of liposomal formulation,
in three media with different pH simulating the path of the carrier through the
human gastrointestinal tract. The synthesized carriers are promising candidates
for encapsulation of PWSAS in concentrations which are higher than its maximal
water solubility and for the targeted delivery of those dosages.",
publisher = "Wiley",
journal = "Polymer Engineering & Science",
title = "Novel strategy for encapsulation and targeted delivery of poorly water-soluble active substances",
volume = "60",
pages = "2008-2022",
doi = "10.1002/pen.25448"
}

Marković, M., Panić, V., Šešlija, S., Milivojević, A. D., Spasojević, P., Bošković-Vragolović, N.,& Pjanović, R.. (2020). Novel strategy for encapsulation and targeted delivery of poorly water-soluble active substances. in Polymer Engineering & Science
Wiley., 60, 2008-2022.
https://doi.org/10.1002/pen.25448

Marković M, Panić V, Šešlija S, Milivojević AD, Spasojević P, Bošković-Vragolović N, Pjanović R. Novel strategy for encapsulation and targeted delivery of poorly water-soluble active substances. in Polymer Engineering & Science. 2020;60:2008-2022.
doi:10.1002/pen.25448 .

Marković, Maja, Panić, Vesna, Šešlija, Sanja, Milivojević, Ana D., Spasojević, Pavle, Bošković-Vragolović, Nevenka, Pjanović, Rada, "Novel strategy for encapsulation and targeted delivery of poorly water-soluble active substances" in Polymer Engineering & Science, 60 (2020):2008-2022,
https://doi.org/10.1002/pen.25448 . .

TY  - JOUR
AU  - Trišić, Dijana
AU  - Ćetenović, Bojana
AU  - Zdravković, Nemanja
AU  - Marković, Tatjana
AU  - Dojčinović, Biljana
AU  - Jokanović, Vukoman
AU  - Marković, Dejan
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3231
AB  - Background/Aim. The main task of endodontic treatment is to eliminate pathologically altered tissue, to disinfect root canal space and to obtain its three-dimensional hermetic obturation. The main purpose of this study was to evaluate antimicrobial activity of new endodontic nano-structured highly active calcium silicates based materials albo-mineral plyoxide carbonate aggregate (ALBO-MPCA) and calcium silicates (CS) in comparison to mineral trioxide aggregate (MTA+) and UltraCal XS (CH). Methods. The antimicrobial activity of materials was tested against Staphylococcus aureus (ATCC 25923) and Enterococcus faecalis (ATCC 14506) strains, and following clinical isolates: Rothia dentocariosa, Enterococcus faecalis, Staphylococcus aureus, Streptococcus anginosus and Streptococcus vestibularis using a double layer agar diffusion test. The pH measurements were performed using the pH meter. Total amount of released ions was determined by inductively coupled plasma optical emission spectrometry (ICP-OES). Results. All tested materials showed the best antibacterial potential after 1 h of incubation. After 3h and 24h of the incubation period, the antibacterial potential of all tested materials were similar. The Agar diffusion test showed that ALBO-MPCA, CS and MTA+ had similar inhibition zones (p > 0.05), except in the activity against Staphylococcus aureus where ALBO-MPCA showed better antimicrobial properties than MTA+ in 3h and 24h of the incubation period (p < 0.05). Following 24h of the incubation, the inhibition zones were the strongest with CH against Staphylococcus aureus (16.67 ± 2.34 mm) followed by ALBO-MPCA (14.67 ± 1.21 mm) and the weakest with CS against Enterococcus faecalis (6.50 ± 1.76 mm). CH showed the highest pH, followed by ALBO-MPCA, CS and MTA+. Conclusion. The expressed antibacterial effects indicate that materials based on nano-structured highly active calcium silicates represent effective therapeutic agents for root canal obturation in one-visit apexification treatment, therefore they are recommend for further examination and clinical trials as they are proposed for MTA substitution.
PB  - Military Medical Academy, INI
T2  - Vojnosanitetski pregled
T1  - Antibacterial effects of new endodontic materials based on calcium silicates
T1  - Antibakterijski efekti novih endodontskih materijala na bazi kalcijum silikata
VL  - 76
IS  - 4
SP  - 365
EP  - 372
DO  - 10.2298/VSP161231130T
ER  - 

@article{
author = "Trišić, Dijana and Ćetenović, Bojana and Zdravković, Nemanja and Marković, Tatjana and Dojčinović, Biljana and Jokanović, Vukoman and Marković, Dejan",
year = "2019",
abstract = "Background/Aim. The main task of endodontic treatment is to eliminate pathologically altered tissue, to disinfect root canal space and to obtain its three-dimensional hermetic obturation. The main purpose of this study was to evaluate antimicrobial activity of new endodontic nano-structured highly active calcium silicates based materials albo-mineral plyoxide carbonate aggregate (ALBO-MPCA) and calcium silicates (CS) in comparison to mineral trioxide aggregate (MTA+) and UltraCal XS (CH). Methods. The antimicrobial activity of materials was tested against Staphylococcus aureus (ATCC 25923) and Enterococcus faecalis (ATCC 14506) strains, and following clinical isolates: Rothia dentocariosa, Enterococcus faecalis, Staphylococcus aureus, Streptococcus anginosus and Streptococcus vestibularis using a double layer agar diffusion test. The pH measurements were performed using the pH meter. Total amount of released ions was determined by inductively coupled plasma optical emission spectrometry (ICP-OES). Results. All tested materials showed the best antibacterial potential after 1 h of incubation. After 3h and 24h of the incubation period, the antibacterial potential of all tested materials were similar. The Agar diffusion test showed that ALBO-MPCA, CS and MTA+ had similar inhibition zones (p > 0.05), except in the activity against Staphylococcus aureus where ALBO-MPCA showed better antimicrobial properties than MTA+ in 3h and 24h of the incubation period (p < 0.05). Following 24h of the incubation, the inhibition zones were the strongest with CH against Staphylococcus aureus (16.67 ± 2.34 mm) followed by ALBO-MPCA (14.67 ± 1.21 mm) and the weakest with CS against Enterococcus faecalis (6.50 ± 1.76 mm). CH showed the highest pH, followed by ALBO-MPCA, CS and MTA+. Conclusion. The expressed antibacterial effects indicate that materials based on nano-structured highly active calcium silicates represent effective therapeutic agents for root canal obturation in one-visit apexification treatment, therefore they are recommend for further examination and clinical trials as they are proposed for MTA substitution.",
publisher = "Military Medical Academy, INI",
journal = "Vojnosanitetski pregled",
title = "Antibacterial effects of new endodontic materials based on calcium silicates, Antibakterijski efekti novih endodontskih materijala na bazi kalcijum silikata",
volume = "76",
number = "4",
pages = "365-372",
doi = "10.2298/VSP161231130T"
}

Trišić, D., Ćetenović, B., Zdravković, N., Marković, T., Dojčinović, B., Jokanović, V.,& Marković, D.. (2019). Antibacterial effects of new endodontic materials based on calcium silicates. in Vojnosanitetski pregled
Military Medical Academy, INI., 76(4), 365-372.
https://doi.org/10.2298/VSP161231130T

Trišić D, Ćetenović B, Zdravković N, Marković T, Dojčinović B, Jokanović V, Marković D. Antibacterial effects of new endodontic materials based on calcium silicates. in Vojnosanitetski pregled. 2019;76(4):365-372.
doi:10.2298/VSP161231130T .

Trišić, Dijana, Ćetenović, Bojana, Zdravković, Nemanja, Marković, Tatjana, Dojčinović, Biljana, Jokanović, Vukoman, Marković, Dejan, "Antibacterial effects of new endodontic materials based on calcium silicates" in Vojnosanitetski pregled, 76, no. 4 (2019):365-372,
https://doi.org/10.2298/VSP161231130T . .

TY  - JOUR
AU  - Rožić, Ljiljana
AU  - Petrović, Srđan
AU  - Lončarević, Davor
AU  - Grbić, Boško
AU  - Radić, Nenad
AU  - Stojadinović, Stevan
AU  - Jović, Vesna
AU  - Lamovec, Jelena
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2486
AB  - TiO2-CeO2 nanopowders were synthesised by a ball-milling process and then annealed at temperatures from 500 degrees to 800 degrees C. X-ray diffraction and diffuse reflectance spectra were used in combination with temperature programmed desorption to determine the structural and microstructural changes of nanopowders as a the function of annealing temperature. The results of the X-ray analysis showed that the weight fraction of the cerianite phase remained unchanged with a temperature rise of 600-700 degrees C, indicating that the phase changes occur only within TiO2. The TiO2-CeO2 nanopowder showed enhanced optical properties with a red shift after the thermal treatment. Photocatalytic studies revealed that the sample annealed at 600 degrees C showed higher photocatalytic activity than samples annealed at lower or higher temperatures in the degradation of the methyl orange. The activity test of all samples is in accordance with photoluminescence measurements, proportional to the concentrations of hydroxyl radicals at the photocatalyst surfaces.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders
VL  - 45
IS  - 2
SP  - 2361
EP  - 2367
DO  - 10.1016/j.ceramint.2018.10.153
ER  - 

@article{
author = "Rožić, Ljiljana and Petrović, Srđan and Lončarević, Davor and Grbić, Boško and Radić, Nenad and Stojadinović, Stevan and Jović, Vesna and Lamovec, Jelena",
year = "2019",
abstract = "TiO2-CeO2 nanopowders were synthesised by a ball-milling process and then annealed at temperatures from 500 degrees to 800 degrees C. X-ray diffraction and diffuse reflectance spectra were used in combination with temperature programmed desorption to determine the structural and microstructural changes of nanopowders as a the function of annealing temperature. The results of the X-ray analysis showed that the weight fraction of the cerianite phase remained unchanged with a temperature rise of 600-700 degrees C, indicating that the phase changes occur only within TiO2. The TiO2-CeO2 nanopowder showed enhanced optical properties with a red shift after the thermal treatment. Photocatalytic studies revealed that the sample annealed at 600 degrees C showed higher photocatalytic activity than samples annealed at lower or higher temperatures in the degradation of the methyl orange. The activity test of all samples is in accordance with photoluminescence measurements, proportional to the concentrations of hydroxyl radicals at the photocatalyst surfaces.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders",
volume = "45",
number = "2",
pages = "2361-2367",
doi = "10.1016/j.ceramint.2018.10.153"
}

Rožić, L., Petrović, S., Lončarević, D., Grbić, B., Radić, N., Stojadinović, S., Jović, V.,& Lamovec, J.. (2019). Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders. in Ceramics International
Elsevier Sci Ltd, Oxford., 45(2), 2361-2367.
https://doi.org/10.1016/j.ceramint.2018.10.153

Rožić L, Petrović S, Lončarević D, Grbić B, Radić N, Stojadinović S, Jović V, Lamovec J. Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders. in Ceramics International. 2019;45(2):2361-2367.
doi:10.1016/j.ceramint.2018.10.153 .

Rožić, Ljiljana, Petrović, Srđan, Lončarević, Davor, Grbić, Boško, Radić, Nenad, Stojadinović, Stevan, Jović, Vesna, Lamovec, Jelena, "Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders" in Ceramics International, 45, no. 2 (2019):2361-2367,
https://doi.org/10.1016/j.ceramint.2018.10.153 . .

TY  - JOUR
AU  - Rožić, Ljiljana
AU  - Petrović, Srđan
AU  - Lončarević, Davor
AU  - Grbić, Boško
AU  - Radić, Nenad
AU  - Stojadinović, Stevan
AU  - Jović, Vesna
AU  - Lamovec, Jelena
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2900
AB  - TiO2-CeO2 nanopowders were synthesised by a ball-milling process and then annealed at temperatures from 500 degrees to 800 degrees C. X-ray diffraction and diffuse reflectance spectra were used in combination with temperature programmed desorption to determine the structural and microstructural changes of nanopowders as a the function of annealing temperature. The results of the X-ray analysis showed that the weight fraction of the cerianite phase remained unchanged with a temperature rise of 600-700 degrees C, indicating that the phase changes occur only within TiO2. The TiO2-CeO2 nanopowder showed enhanced optical properties with a red shift after the thermal treatment. Photocatalytic studies revealed that the sample annealed at 600 degrees C showed higher photocatalytic activity than samples annealed at lower or higher temperatures in the degradation of the methyl orange. The activity test of all samples is in accordance with photoluminescence measurements, proportional to the concentrations of hydroxyl radicals at the photocatalyst surfaces.
PB  - Oxford : Elsevier Sci Ltd.
T2  - Ceramics International
T1  - Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders
VL  - 45
IS  - 2
SP  - 2361
EP  - 2367
DO  - 10.1016/j.ceramint.2018.10.153
ER  - 

@article{
author = "Rožić, Ljiljana and Petrović, Srđan and Lončarević, Davor and Grbić, Boško and Radić, Nenad and Stojadinović, Stevan and Jović, Vesna and Lamovec, Jelena",
year = "2019",
abstract = "TiO2-CeO2 nanopowders were synthesised by a ball-milling process and then annealed at temperatures from 500 degrees to 800 degrees C. X-ray diffraction and diffuse reflectance spectra were used in combination with temperature programmed desorption to determine the structural and microstructural changes of nanopowders as a the function of annealing temperature. The results of the X-ray analysis showed that the weight fraction of the cerianite phase remained unchanged with a temperature rise of 600-700 degrees C, indicating that the phase changes occur only within TiO2. The TiO2-CeO2 nanopowder showed enhanced optical properties with a red shift after the thermal treatment. Photocatalytic studies revealed that the sample annealed at 600 degrees C showed higher photocatalytic activity than samples annealed at lower or higher temperatures in the degradation of the methyl orange. The activity test of all samples is in accordance with photoluminescence measurements, proportional to the concentrations of hydroxyl radicals at the photocatalyst surfaces.",
publisher = "Oxford : Elsevier Sci Ltd.",
journal = "Ceramics International",
title = "Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders",
volume = "45",
number = "2",
pages = "2361-2367",
doi = "10.1016/j.ceramint.2018.10.153"
}

Rožić, L., Petrović, S., Lončarević, D., Grbić, B., Radić, N., Stojadinović, S., Jović, V.,& Lamovec, J.. (2019). Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders. in Ceramics International
Oxford : Elsevier Sci Ltd.., 45(2), 2361-2367.
https://doi.org/10.1016/j.ceramint.2018.10.153

Rožić L, Petrović S, Lončarević D, Grbić B, Radić N, Stojadinović S, Jović V, Lamovec J. Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders. in Ceramics International. 2019;45(2):2361-2367.
doi:10.1016/j.ceramint.2018.10.153 .

Rožić, Ljiljana, Petrović, Srđan, Lončarević, Davor, Grbić, Boško, Radić, Nenad, Stojadinović, Stevan, Jović, Vesna, Lamovec, Jelena, "Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders" in Ceramics International, 45, no. 2 (2019):2361-2367,
https://doi.org/10.1016/j.ceramint.2018.10.153 . .

TY  - JOUR
AU  - Petrović, Srđan
AU  - Rožić, Ljiljana
AU  - Stojadinović, Stevan
AU  - Grbić, Boško
AU  - Vasilić, Rastko
AU  - Vuković, Zorica
AU  - Radić, Nenad
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2349
AB  - In this study, WO3 doped TiO2 powders were synthesized via sol-gel method combined with a hydrothermal process. The effect of sintering temperature on mesoporous structure and catalytic activities of these powders were investigated. The physical analysis via X-ray diffraction indicates that prepared samples are a mixture of anatase and rutile TiO2 phases. X-ray peak analysis is used to evaluate the crystallite size and lattice strain by the Williamson-Hall analysis. Considering all the reflections of the anatase phase the lattice strain ranging from c = 9.505 to c = 9.548 is calculated, suggesting that microstrain decreases when calcination temperature increases. N-2 adsorption-desorption analysis shows that the surface area and pore volume decrease with increasing temperature and that WOx-TiO2 powders primarily consist of mesopores. Sintering temperature induced a change in textural properties causing a systematic shift towards larger mesopores. Simultaneously, photoactivity in decolorization of methyl orange increases with increasing calcination temperature up to 700 degrees C, followed by significant decrease with its further increase.
PB  - International Institute for the Science of Sintering, Beograd
T2  - Science of Sintering
T1  - The Effect of Sintering Temperature on Mesoporous Structure of WO3 Doped Tio(2) Powders
VL  - 50
IS  - 1
SP  - 123
EP  - 132
DO  - 10.2298/SOS1801123P
ER  - 

@article{
author = "Petrović, Srđan and Rožić, Ljiljana and Stojadinović, Stevan and Grbić, Boško and Vasilić, Rastko and Vuković, Zorica and Radić, Nenad",
year = "2018",
abstract = "In this study, WO3 doped TiO2 powders were synthesized via sol-gel method combined with a hydrothermal process. The effect of sintering temperature on mesoporous structure and catalytic activities of these powders were investigated. The physical analysis via X-ray diffraction indicates that prepared samples are a mixture of anatase and rutile TiO2 phases. X-ray peak analysis is used to evaluate the crystallite size and lattice strain by the Williamson-Hall analysis. Considering all the reflections of the anatase phase the lattice strain ranging from c = 9.505 to c = 9.548 is calculated, suggesting that microstrain decreases when calcination temperature increases. N-2 adsorption-desorption analysis shows that the surface area and pore volume decrease with increasing temperature and that WOx-TiO2 powders primarily consist of mesopores. Sintering temperature induced a change in textural properties causing a systematic shift towards larger mesopores. Simultaneously, photoactivity in decolorization of methyl orange increases with increasing calcination temperature up to 700 degrees C, followed by significant decrease with its further increase.",
publisher = "International Institute for the Science of Sintering, Beograd",
journal = "Science of Sintering",
title = "The Effect of Sintering Temperature on Mesoporous Structure of WO3 Doped Tio(2) Powders",
volume = "50",
number = "1",
pages = "123-132",
doi = "10.2298/SOS1801123P"
}

Petrović, S., Rožić, L., Stojadinović, S., Grbić, B., Vasilić, R., Vuković, Z.,& Radić, N.. (2018). The Effect of Sintering Temperature on Mesoporous Structure of WO3 Doped Tio(2) Powders. in Science of Sintering
International Institute for the Science of Sintering, Beograd., 50(1), 123-132.
https://doi.org/10.2298/SOS1801123P

Petrović S, Rožić L, Stojadinović S, Grbić B, Vasilić R, Vuković Z, Radić N. The Effect of Sintering Temperature on Mesoporous Structure of WO3 Doped Tio(2) Powders. in Science of Sintering. 2018;50(1):123-132.
doi:10.2298/SOS1801123P .

Petrović, Srđan, Rožić, Ljiljana, Stojadinović, Stevan, Grbić, Boško, Vasilić, Rastko, Vuković, Zorica, Radić, Nenad, "The Effect of Sintering Temperature on Mesoporous Structure of WO3 Doped Tio(2) Powders" in Science of Sintering, 50, no. 1 (2018):123-132,
https://doi.org/10.2298/SOS1801123P . .

TY  - JOUR
AU  - Petrović, Srđan
AU  - Rožić, Ljiljana
AU  - Jović, Vesna
AU  - Stojadinović, Stevan
AU  - Grbić, Boško
AU  - Radić, Nenad
AU  - Lamovec, Jelena
AU  - Vasilić, Rastko
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2454
AB  - Nanocrystalline TiO2-CeO2 powders were synthesized from their TiO2 and CeO2 oxides using mechanical ball milling process. The response surface method is applied to identify optimal parameters for the synthesis of TiO2-CeO2 photocatalyst. Analysis of variance and main effect plot are used to determine the significant parameters and set the optimal level for each parameter. Regression analysis showed good agreement of experimental data with the second-order polynomial model with a coefficients of determination: R-2 = 0.991, R-Adj(2). = 0.940 and R-Pred(2). = 0.983. Under optimal experimental conditions of TiO2:CeO2 weight percentage ratio 71: 29, milling speed 200 rpm, and milling time 115 min the highest photodegradation efficiency was achieved. On the basis of the above statistical analysis, it was found that the band gap energy of TiO2-CeO2 nanoparticles decreases with the increase of the milling speed and milling time with constant TiO2:CeO2 weight percentage ratio. Obtained results suggest that mechanical ball milling process is a rapid, efficient and low energy consumption method to synthesize TiO2-CeO2 photocatalyst.
PB  - Elsevier
T2  - Advanced Powder Technology
T1  - Optimization of a nanoparticle ball milling process parameters using the response surface method
VL  - 29
IS  - 9
SP  - 2129
EP  - 2139
DO  - 10.1016/j.apt.2018.05.021
ER  - 

@article{
author = "Petrović, Srđan and Rožić, Ljiljana and Jović, Vesna and Stojadinović, Stevan and Grbić, Boško and Radić, Nenad and Lamovec, Jelena and Vasilić, Rastko",
year = "2018",
abstract = "Nanocrystalline TiO2-CeO2 powders were synthesized from their TiO2 and CeO2 oxides using mechanical ball milling process. The response surface method is applied to identify optimal parameters for the synthesis of TiO2-CeO2 photocatalyst. Analysis of variance and main effect plot are used to determine the significant parameters and set the optimal level for each parameter. Regression analysis showed good agreement of experimental data with the second-order polynomial model with a coefficients of determination: R-2 = 0.991, R-Adj(2). = 0.940 and R-Pred(2). = 0.983. Under optimal experimental conditions of TiO2:CeO2 weight percentage ratio 71: 29, milling speed 200 rpm, and milling time 115 min the highest photodegradation efficiency was achieved. On the basis of the above statistical analysis, it was found that the band gap energy of TiO2-CeO2 nanoparticles decreases with the increase of the milling speed and milling time with constant TiO2:CeO2 weight percentage ratio. Obtained results suggest that mechanical ball milling process is a rapid, efficient and low energy consumption method to synthesize TiO2-CeO2 photocatalyst.",
publisher = "Elsevier",
journal = "Advanced Powder Technology",
title = "Optimization of a nanoparticle ball milling process parameters using the response surface method",
volume = "29",
number = "9",
pages = "2129-2139",
doi = "10.1016/j.apt.2018.05.021"
}

Petrović, S., Rožić, L., Jović, V., Stojadinović, S., Grbić, B., Radić, N., Lamovec, J.,& Vasilić, R.. (2018). Optimization of a nanoparticle ball milling process parameters using the response surface method. in Advanced Powder Technology
Elsevier., 29(9), 2129-2139.
https://doi.org/10.1016/j.apt.2018.05.021

Petrović S, Rožić L, Jović V, Stojadinović S, Grbić B, Radić N, Lamovec J, Vasilić R. Optimization of a nanoparticle ball milling process parameters using the response surface method. in Advanced Powder Technology. 2018;29(9):2129-2139.
doi:10.1016/j.apt.2018.05.021 .

Petrović, Srđan, Rožić, Ljiljana, Jović, Vesna, Stojadinović, Stevan, Grbić, Boško, Radić, Nenad, Lamovec, Jelena, Vasilić, Rastko, "Optimization of a nanoparticle ball milling process parameters using the response surface method" in Advanced Powder Technology, 29, no. 9 (2018):2129-2139,
https://doi.org/10.1016/j.apt.2018.05.021 . .

TY  - JOUR
AU  - Cetenovic, Bojana
AU  - Prokic, Bogomir
AU  - Vasilijic, Sasa
AU  - Dojčinović, Biljana
AU  - Magic, Marko
AU  - Jokanovic, Vukoman
AU  - Marković, Dejan
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2186
AB  - Introduction: The aim of this article was to analyze biocompatibility and bioactivity of new endodontic materials on the basis of nanosynthesized calcium silicates (ALBO-MPCA(1) and ALBO-MPCA(2)) combined with different radiopacifiers in comparison with MTA(+). Methods: Morphology of the samples was studied by scanning electron microscopy, and the pH and ion release analysis were also assessed. Biocompatibility of materials' eluates (24-hour, 7-day, and 21-day) was conducted by using MIT test. Twelve New Zealand white rabbits were used for intraosseous implantation. Four calvarial defects per animal were created and filled with freshly prepared investigated materials. Results: Samples mostly consisted of agglomerates built up from nanoparticles, preferably spherical and rod-like. There was no significant difference among pH values of materials' eluates after 24 hours (P>.05). The amount of calcium and aluminum ion release decreased, whereas the amount of magnesium and bismuth (ALBO-MPCAl, MTA(+)) and barium (ALBO-MPCA(2)) increased during 21-day period. The metabolic activity of cells increased after the extraction time, except in case of undiluted elutes of ALBO-MPCA(2) and ALBO-MPCAI (21-day). Histologic analysis of the samples revealed newly formed bone tissue with moderate inflammation for all investigated materials, which subsided during 90-day period to mild. Both MIA(+) and ALBO-MPCAI were in direct contact with the newly formed bone tissue. After 90 days, statistically significant difference in hard tissue formation was observed in comparison of MIA(+) and ALBO-MPCki with control group (P  LT .05). Conclusions: Experimental materials ALBOMPCA, and ALBO-MPCA(2) possess both biocompatibility and bioactivity. Because ALBO-MPCAA provokes favorable biological response, it is especially good candidate for further clinical investigations.
PB  - Elsevier Science Inc, New York
T2  - Journal of Endodontics
T1  - Biocompatibility Investigation of New Endodontic Materials Based on Nanosynthesized Calcium Silicates Combined with Different Radiopacifiers
VL  - 43
IS  - 3
SP  - 425
EP  - 432
DO  - 10.1016/j.joen.2016.10.041
ER  - 

@article{
author = "Cetenovic, Bojana and Prokic, Bogomir and Vasilijic, Sasa and Dojčinović, Biljana and Magic, Marko and Jokanovic, Vukoman and Marković, Dejan",
year = "2017",
abstract = "Introduction: The aim of this article was to analyze biocompatibility and bioactivity of new endodontic materials on the basis of nanosynthesized calcium silicates (ALBO-MPCA(1) and ALBO-MPCA(2)) combined with different radiopacifiers in comparison with MTA(+). Methods: Morphology of the samples was studied by scanning electron microscopy, and the pH and ion release analysis were also assessed. Biocompatibility of materials' eluates (24-hour, 7-day, and 21-day) was conducted by using MIT test. Twelve New Zealand white rabbits were used for intraosseous implantation. Four calvarial defects per animal were created and filled with freshly prepared investigated materials. Results: Samples mostly consisted of agglomerates built up from nanoparticles, preferably spherical and rod-like. There was no significant difference among pH values of materials' eluates after 24 hours (P>.05). The amount of calcium and aluminum ion release decreased, whereas the amount of magnesium and bismuth (ALBO-MPCAl, MTA(+)) and barium (ALBO-MPCA(2)) increased during 21-day period. The metabolic activity of cells increased after the extraction time, except in case of undiluted elutes of ALBO-MPCA(2) and ALBO-MPCAI (21-day). Histologic analysis of the samples revealed newly formed bone tissue with moderate inflammation for all investigated materials, which subsided during 90-day period to mild. Both MIA(+) and ALBO-MPCAI were in direct contact with the newly formed bone tissue. After 90 days, statistically significant difference in hard tissue formation was observed in comparison of MIA(+) and ALBO-MPCki with control group (P  LT .05). Conclusions: Experimental materials ALBOMPCA, and ALBO-MPCA(2) possess both biocompatibility and bioactivity. Because ALBO-MPCAA provokes favorable biological response, it is especially good candidate for further clinical investigations.",
publisher = "Elsevier Science Inc, New York",
journal = "Journal of Endodontics",
title = "Biocompatibility Investigation of New Endodontic Materials Based on Nanosynthesized Calcium Silicates Combined with Different Radiopacifiers",
volume = "43",
number = "3",
pages = "425-432",
doi = "10.1016/j.joen.2016.10.041"
}

Cetenovic, B., Prokic, B., Vasilijic, S., Dojčinović, B., Magic, M., Jokanovic, V.,& Marković, D.. (2017). Biocompatibility Investigation of New Endodontic Materials Based on Nanosynthesized Calcium Silicates Combined with Different Radiopacifiers. in Journal of Endodontics
Elsevier Science Inc, New York., 43(3), 425-432.
https://doi.org/10.1016/j.joen.2016.10.041

Cetenovic B, Prokic B, Vasilijic S, Dojčinović B, Magic M, Jokanovic V, Marković D. Biocompatibility Investigation of New Endodontic Materials Based on Nanosynthesized Calcium Silicates Combined with Different Radiopacifiers. in Journal of Endodontics. 2017;43(3):425-432.
doi:10.1016/j.joen.2016.10.041 .

Cetenovic, Bojana, Prokic, Bogomir, Vasilijic, Sasa, Dojčinović, Biljana, Magic, Marko, Jokanovic, Vukoman, Marković, Dejan, "Biocompatibility Investigation of New Endodontic Materials Based on Nanosynthesized Calcium Silicates Combined with Different Radiopacifiers" in Journal of Endodontics, 43, no. 3 (2017):425-432,
https://doi.org/10.1016/j.joen.2016.10.041 . .

TY  - JOUR
AU  - Petrović, Srđan
AU  - Rožić, Ljiljana
AU  - Vuković, Zorica
AU  - Grbić, Boško
AU  - Radić, Nenad
AU  - Stojadinović, Stevan
AU  - Vasilić, Rastko
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2078
AB  - This article presents the comparison of structural and fractal properties of nanocrystalline titanium dioxide (TiO2) and TiO2 modified with tungstophosphoric acid (TiO2/HPW) and their impact on the photocatalytic degradation of hazardous water pollutants. TiO2 and TiO2/HPW samples were synthesized by a combined solgel and hydrothermal processing. The XRD analysis of pure TiO2 samples revealed that phase composition was mainly dependent on the calcination temperature, changing from amorphous TiO2 to crystalline anatase and rutile by increasing the temperature. On the other hand, the XRD of TiO2/HPW samples calcined at temperatures above 600 degrees C showed crystalline peaks associated to formation of WO3 and WO2.92 crystalline domains. The N-2 adsorption-desorption isotherm and pore size distribution of TiO2/HPW samples detected the existence of mesoporous characteristic with very narrow bimodal pores in the mesoporous region. The structural heterogeneity of samples was analyzed by means of pore size distribution functions, while the variation in fractal dimension were determined from the nitrogen adsorption isotherms, using the modified Frenkel-Halsey-Hill method. The results demonstrate that the approach is capable of characterizing complex textures such as those present in the TiO2 and TiO2/HPW photocatalysts. Besides, the effect of calcinations condition on photocatalytic properties of the samples was also investigated. The highest efficiency with respect to methyl orange photodecomposition was observed for TiO2/HPW photocatalysts calcined at 700 degrees C.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Journal of Physics and Chemistry of Solids
T1  - Structural and fractal characterization of tungstophosphoric acid modified titanium dioxide photocatalyst
VL  - 103
SP  - 95
EP  - 102
DO  - 10.1016/j.jpcs.2016.12.002
ER  - 

@article{
author = "Petrović, Srđan and Rožić, Ljiljana and Vuković, Zorica and Grbić, Boško and Radić, Nenad and Stojadinović, Stevan and Vasilić, Rastko",
year = "2017",
abstract = "This article presents the comparison of structural and fractal properties of nanocrystalline titanium dioxide (TiO2) and TiO2 modified with tungstophosphoric acid (TiO2/HPW) and their impact on the photocatalytic degradation of hazardous water pollutants. TiO2 and TiO2/HPW samples were synthesized by a combined solgel and hydrothermal processing. The XRD analysis of pure TiO2 samples revealed that phase composition was mainly dependent on the calcination temperature, changing from amorphous TiO2 to crystalline anatase and rutile by increasing the temperature. On the other hand, the XRD of TiO2/HPW samples calcined at temperatures above 600 degrees C showed crystalline peaks associated to formation of WO3 and WO2.92 crystalline domains. The N-2 adsorption-desorption isotherm and pore size distribution of TiO2/HPW samples detected the existence of mesoporous characteristic with very narrow bimodal pores in the mesoporous region. The structural heterogeneity of samples was analyzed by means of pore size distribution functions, while the variation in fractal dimension were determined from the nitrogen adsorption isotherms, using the modified Frenkel-Halsey-Hill method. The results demonstrate that the approach is capable of characterizing complex textures such as those present in the TiO2 and TiO2/HPW photocatalysts. Besides, the effect of calcinations condition on photocatalytic properties of the samples was also investigated. The highest efficiency with respect to methyl orange photodecomposition was observed for TiO2/HPW photocatalysts calcined at 700 degrees C.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Journal of Physics and Chemistry of Solids",
title = "Structural and fractal characterization of tungstophosphoric acid modified titanium dioxide photocatalyst",
volume = "103",
pages = "95-102",
doi = "10.1016/j.jpcs.2016.12.002"
}

Petrović, S., Rožić, L., Vuković, Z., Grbić, B., Radić, N., Stojadinović, S.,& Vasilić, R.. (2017). Structural and fractal characterization of tungstophosphoric acid modified titanium dioxide photocatalyst. in Journal of Physics and Chemistry of Solids
Oxford : Pergamon-Elsevier Science Ltd., 103, 95-102.
https://doi.org/10.1016/j.jpcs.2016.12.002

Petrović S, Rožić L, Vuković Z, Grbić B, Radić N, Stojadinović S, Vasilić R. Structural and fractal characterization of tungstophosphoric acid modified titanium dioxide photocatalyst. in Journal of Physics and Chemistry of Solids. 2017;103:95-102.
doi:10.1016/j.jpcs.2016.12.002 .

Petrović, Srđan, Rožić, Ljiljana, Vuković, Zorica, Grbić, Boško, Radić, Nenad, Stojadinović, Stevan, Vasilić, Rastko, "Structural and fractal characterization of tungstophosphoric acid modified titanium dioxide photocatalyst" in Journal of Physics and Chemistry of Solids, 103 (2017):95-102,
https://doi.org/10.1016/j.jpcs.2016.12.002 . .

TY  - JOUR
AU  - Stojadinović, Stevan
AU  - Tadić, Nenad
AU  - Radić, Nenad
AU  - Grbić, Boško
AU  - Vasilić, Rastko
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2198
AB  - This paper presents the results of our recent investigation of MgO/ZnO coatings formed on AZ31 magnesium alloy by plasma electrolytic oxidation in phosphate-based alkaline electrolyte with varying concentration of ZnO particles. Surface morphology of obtained coatings is not significantly influenced by the addition of ZnO particles to the supporting electrolyte, while processing time has considerable influence on the morphology of formed coatings. Elemental mapping showed that elements are distributed rather uniformly across the obtained oxide coatings. The content of Zn increases with ZnO particle concentration in the supporting electrolyte as well as with PEO processing time. Incorporation of ZnO particles in obtained coatings was confirmed by X-ray diffraction and Raman spectroscopy. Photoluminescent emission spectra of MgO/ZnO coatings featured sharp band centered at about 380 nm and broad band centered at about 535 nm, with the leading contribution coming from ZnO deposited on the surface. Diffuse reflectance spectra revealed that absorption edge of MgO/ZnO coatings is positioned at about 385 nm. Photoactivity of obtained coatings increases with processing time and ZnO concentration up to 6 g/L.
PB  - Elsevier
T2  - Surface and Coatings Technology
T1  - MgO/ZnO coatings formed on magnesium alloy AZ31 by plasma electrolytic oxidation: Structural, photoluminescence and photocatalytic investigation
VL  - 310
SP  - 98
EP  - 105
DO  - 10.1016/j.surfcoat.2016.12.073
ER  - 

@article{
author = "Stojadinović, Stevan and Tadić, Nenad and Radić, Nenad and Grbić, Boško and Vasilić, Rastko",
year = "2017",
abstract = "This paper presents the results of our recent investigation of MgO/ZnO coatings formed on AZ31 magnesium alloy by plasma electrolytic oxidation in phosphate-based alkaline electrolyte with varying concentration of ZnO particles. Surface morphology of obtained coatings is not significantly influenced by the addition of ZnO particles to the supporting electrolyte, while processing time has considerable influence on the morphology of formed coatings. Elemental mapping showed that elements are distributed rather uniformly across the obtained oxide coatings. The content of Zn increases with ZnO particle concentration in the supporting electrolyte as well as with PEO processing time. Incorporation of ZnO particles in obtained coatings was confirmed by X-ray diffraction and Raman spectroscopy. Photoluminescent emission spectra of MgO/ZnO coatings featured sharp band centered at about 380 nm and broad band centered at about 535 nm, with the leading contribution coming from ZnO deposited on the surface. Diffuse reflectance spectra revealed that absorption edge of MgO/ZnO coatings is positioned at about 385 nm. Photoactivity of obtained coatings increases with processing time and ZnO concentration up to 6 g/L.",
publisher = "Elsevier",
journal = "Surface and Coatings Technology",
title = "MgO/ZnO coatings formed on magnesium alloy AZ31 by plasma electrolytic oxidation: Structural, photoluminescence and photocatalytic investigation",
volume = "310",
pages = "98-105",
doi = "10.1016/j.surfcoat.2016.12.073"
}

Stojadinović, S., Tadić, N., Radić, N., Grbić, B.,& Vasilić, R.. (2017). MgO/ZnO coatings formed on magnesium alloy AZ31 by plasma electrolytic oxidation: Structural, photoluminescence and photocatalytic investigation. in Surface and Coatings Technology
Elsevier., 310, 98-105.
https://doi.org/10.1016/j.surfcoat.2016.12.073

Stojadinović S, Tadić N, Radić N, Grbić B, Vasilić R. MgO/ZnO coatings formed on magnesium alloy AZ31 by plasma electrolytic oxidation: Structural, photoluminescence and photocatalytic investigation. in Surface and Coatings Technology. 2017;310:98-105.
doi:10.1016/j.surfcoat.2016.12.073 .

Stojadinović, Stevan, Tadić, Nenad, Radić, Nenad, Grbić, Boško, Vasilić, Rastko, "MgO/ZnO coatings formed on magnesium alloy AZ31 by plasma electrolytic oxidation: Structural, photoluminescence and photocatalytic investigation" in Surface and Coatings Technology, 310 (2017):98-105,
https://doi.org/10.1016/j.surfcoat.2016.12.073 . .

TY  - JOUR
AU  - Radić, Nenad
AU  - Grbić, Boško
AU  - Stojadinović, Stevan
AU  - Vasilić, Rastko
AU  - Petrović, Srđan
AU  - Rožić, Ljiljana
AU  - Stefanov, Plamen
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2259
AB  - Pt-Ba-Al2O3 coatings were obtained by spray pyrolysis deposition on stainless steel foil. The XRD results showed that the coatings consisted from Ba carbonate and Pt (fcc) phases. SEM micrographs demonstrated that the coatings are smooth and compact. The XPS data confirmed that Ba and Pt are in close contact. Pt crystallite size is only slightly influenced by the order of Pt and Ba deposition and the dispersion of Pt is in the narrow range from 28 to 33% for all samples. Catalyst component deposition order affects NOx storage capacity. Simultaneous deposition of Ba and Pt on already formed Al2O3 substrate produces the most efficient catalyst. Pt deposited on top of the Ba layer results in slightly reduced NOx storage capacity, while deposition of Pt on the separated layer with Ba layer on top significantly reduces the ability for NOx storage.
PB  - Elsevier Science Sa, Lausanne
T2  - Thin Solid Films
T1  - Preparation and characterization of Pt-Ba-Al2O3 coatings obtained by spray pyrolysis
VL  - 628
SP  - 7
EP  - 12
DO  - 10.1016/j.tsf.2017.03.007
ER  - 

@article{
author = "Radić, Nenad and Grbić, Boško and Stojadinović, Stevan and Vasilić, Rastko and Petrović, Srđan and Rožić, Ljiljana and Stefanov, Plamen",
year = "2017",
abstract = "Pt-Ba-Al2O3 coatings were obtained by spray pyrolysis deposition on stainless steel foil. The XRD results showed that the coatings consisted from Ba carbonate and Pt (fcc) phases. SEM micrographs demonstrated that the coatings are smooth and compact. The XPS data confirmed that Ba and Pt are in close contact. Pt crystallite size is only slightly influenced by the order of Pt and Ba deposition and the dispersion of Pt is in the narrow range from 28 to 33% for all samples. Catalyst component deposition order affects NOx storage capacity. Simultaneous deposition of Ba and Pt on already formed Al2O3 substrate produces the most efficient catalyst. Pt deposited on top of the Ba layer results in slightly reduced NOx storage capacity, while deposition of Pt on the separated layer with Ba layer on top significantly reduces the ability for NOx storage.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Thin Solid Films",
title = "Preparation and characterization of Pt-Ba-Al2O3 coatings obtained by spray pyrolysis",
volume = "628",
pages = "7-12",
doi = "10.1016/j.tsf.2017.03.007"
}

Radić, N., Grbić, B., Stojadinović, S., Vasilić, R., Petrović, S., Rožić, L.,& Stefanov, P.. (2017). Preparation and characterization of Pt-Ba-Al2O3 coatings obtained by spray pyrolysis. in Thin Solid Films
Elsevier Science Sa, Lausanne., 628, 7-12.
https://doi.org/10.1016/j.tsf.2017.03.007

Radić N, Grbić B, Stojadinović S, Vasilić R, Petrović S, Rožić L, Stefanov P. Preparation and characterization of Pt-Ba-Al2O3 coatings obtained by spray pyrolysis. in Thin Solid Films. 2017;628:7-12.
doi:10.1016/j.tsf.2017.03.007 .

Radić, Nenad, Grbić, Boško, Stojadinović, Stevan, Vasilić, Rastko, Petrović, Srđan, Rožić, Ljiljana, Stefanov, Plamen, "Preparation and characterization of Pt-Ba-Al2O3 coatings obtained by spray pyrolysis" in Thin Solid Films, 628 (2017):7-12,
https://doi.org/10.1016/j.tsf.2017.03.007 . .

TY  - JOUR
AU  - Tadić, Nenad
AU  - Stojadinović, Stevan
AU  - Radić, Nenad
AU  - Grbić, Boško
AU  - Vasilić, Rastko
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1914
AB  - This paper presents a recent investigation of rapid deposition of TiO2 nanoparticles on aluminum by plasma electrolytic oxidation in Na2SiO3 center dot 5H(2)O water based electrolyte with addition of TiO2 nanoparticles and Na2WO4 center dot 2H(2)O. Oxide coatings were characterized by scanning electron microscopy, energy dispersive X-ray spectroscopy and grazing incidence X-ray diffraction. It was found that surface morphology, chemical and phase compositions of obtained coatings depend on electrolyte composition and processing time. The photocatalytic activity was tested by photodegrading methyl orange under simulated sunlight conditions. It was observed that photodegradation of methyl orange strongly depends on the concentration of TiO2 nanoparticles and sodium tungstate in the electrolyte and PEO treatment time. Coatings with the highest photoactivity were obtained in 4 g/L Na2SiO3 center dot 5H(2)O + 2 g/L Degussa P25 + 0.1 g/L Na2WO4 center dot 2H(2)O.
PB  - Elsevier
T2  - Surface and Coatings Technology
T1  - Characterization and photocatalytic properties of tungsten doped TiO2 coatings on aluminum obtained by plasma electrolytic oxidation
VL  - 305
SP  - 192
EP  - 199
DO  - 10.1016/j.surfcoat.2016.08.045
ER  - 

@article{
author = "Tadić, Nenad and Stojadinović, Stevan and Radić, Nenad and Grbić, Boško and Vasilić, Rastko",
year = "2016",
abstract = "This paper presents a recent investigation of rapid deposition of TiO2 nanoparticles on aluminum by plasma electrolytic oxidation in Na2SiO3 center dot 5H(2)O water based electrolyte with addition of TiO2 nanoparticles and Na2WO4 center dot 2H(2)O. Oxide coatings were characterized by scanning electron microscopy, energy dispersive X-ray spectroscopy and grazing incidence X-ray diffraction. It was found that surface morphology, chemical and phase compositions of obtained coatings depend on electrolyte composition and processing time. The photocatalytic activity was tested by photodegrading methyl orange under simulated sunlight conditions. It was observed that photodegradation of methyl orange strongly depends on the concentration of TiO2 nanoparticles and sodium tungstate in the electrolyte and PEO treatment time. Coatings with the highest photoactivity were obtained in 4 g/L Na2SiO3 center dot 5H(2)O + 2 g/L Degussa P25 + 0.1 g/L Na2WO4 center dot 2H(2)O.",
publisher = "Elsevier",
journal = "Surface and Coatings Technology",
title = "Characterization and photocatalytic properties of tungsten doped TiO2 coatings on aluminum obtained by plasma electrolytic oxidation",
volume = "305",
pages = "192-199",
doi = "10.1016/j.surfcoat.2016.08.045"
}

Tadić, N., Stojadinović, S., Radić, N., Grbić, B.,& Vasilić, R.. (2016). Characterization and photocatalytic properties of tungsten doped TiO2 coatings on aluminum obtained by plasma electrolytic oxidation. in Surface and Coatings Technology
Elsevier., 305, 192-199.
https://doi.org/10.1016/j.surfcoat.2016.08.045

Tadić N, Stojadinović S, Radić N, Grbić B, Vasilić R. Characterization and photocatalytic properties of tungsten doped TiO2 coatings on aluminum obtained by plasma electrolytic oxidation. in Surface and Coatings Technology. 2016;305:192-199.
doi:10.1016/j.surfcoat.2016.08.045 .

Tadić, Nenad, Stojadinović, Stevan, Radić, Nenad, Grbić, Boško, Vasilić, Rastko, "Characterization and photocatalytic properties of tungsten doped TiO2 coatings on aluminum obtained by plasma electrolytic oxidation" in Surface and Coatings Technology, 305 (2016):192-199,
https://doi.org/10.1016/j.surfcoat.2016.08.045 . .

TY  - JOUR
AU  - Stojadinović, Stevan
AU  - Vasilić, Rastko
AU  - Radić, Nenad
AU  - Tadić, Nenad
AU  - Stefanov, Plamen
AU  - Grbić, Boško
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1939
AB  - Tungsten doped Al2O3 /ZnO coatings are formed by plasma electrolytic oxidation of aluminum substrate in supporting electrolyte (0.1 M boric acid + 0.05 M borax + 2 g/L ZnO) with addition of different concentrations of Na2WO4 center dot 2H(2)O. The morphology, crystal structure, chemical composition, and light absorption characteristics of formed surface coatings are investigated. The X-ray diffraction and X-ray photoelectron spectroscopy results indicate that formed surface coatings consist of alpha and gamma phase of A(2)O(3), ZnO, metallic tungsten and WO3. Obtained results showed that incorporated tungsten does not have any influence on the absorption spectra of Al2O3/ZnO coatings, which showed invariable band edge at about 385 nm. The photocatalytic activity of undoped and tungsten doped Al2O3 /ZnO coatings is estimated by the photodegradation of methyl orange. The photocatalytic activity of tungsten doped A(2)O(3)/ZnO coatings is higher thanof undoped Al2O3 /ZnO coatings; the best photocatalytic activity is ascribed to coatings formed in supporting electrolyte with addition of 0.3 g/L Na2WO4 center dot 2H(2)O. Tungsten in A(2)O(3)/ZnO coatings acts as a charge trap, thus reducing the recombination rate of photogenerated electron-hole pairs. The results of PL measurements are in agreement with photocatalytic activity. Declining PL intensity corresponds to increasing photocatalytic activity of the coatings, indicating slower recombination of electron-hole pairs.
PB  - Elsevier
T2  - Applied Surface Science
T1  - The formation of tungsten doped Al2O3/ZnO coatings on aluminum by plasma electrolytic oxidation and their application in photocatalysis
VL  - 377
SP  - 37
EP  - 43
DO  - 10.1016/j.apsusc.2016.03.104
ER  - 

@article{
author = "Stojadinović, Stevan and Vasilić, Rastko and Radić, Nenad and Tadić, Nenad and Stefanov, Plamen and Grbić, Boško",
year = "2016",
abstract = "Tungsten doped Al2O3 /ZnO coatings are formed by plasma electrolytic oxidation of aluminum substrate in supporting electrolyte (0.1 M boric acid + 0.05 M borax + 2 g/L ZnO) with addition of different concentrations of Na2WO4 center dot 2H(2)O. The morphology, crystal structure, chemical composition, and light absorption characteristics of formed surface coatings are investigated. The X-ray diffraction and X-ray photoelectron spectroscopy results indicate that formed surface coatings consist of alpha and gamma phase of A(2)O(3), ZnO, metallic tungsten and WO3. Obtained results showed that incorporated tungsten does not have any influence on the absorption spectra of Al2O3/ZnO coatings, which showed invariable band edge at about 385 nm. The photocatalytic activity of undoped and tungsten doped Al2O3 /ZnO coatings is estimated by the photodegradation of methyl orange. The photocatalytic activity of tungsten doped A(2)O(3)/ZnO coatings is higher thanof undoped Al2O3 /ZnO coatings; the best photocatalytic activity is ascribed to coatings formed in supporting electrolyte with addition of 0.3 g/L Na2WO4 center dot 2H(2)O. Tungsten in A(2)O(3)/ZnO coatings acts as a charge trap, thus reducing the recombination rate of photogenerated electron-hole pairs. The results of PL measurements are in agreement with photocatalytic activity. Declining PL intensity corresponds to increasing photocatalytic activity of the coatings, indicating slower recombination of electron-hole pairs.",
publisher = "Elsevier",
journal = "Applied Surface Science",
title = "The formation of tungsten doped Al2O3/ZnO coatings on aluminum by plasma electrolytic oxidation and their application in photocatalysis",
volume = "377",
pages = "37-43",
doi = "10.1016/j.apsusc.2016.03.104"
}

Stojadinović, S., Vasilić, R., Radić, N., Tadić, N., Stefanov, P.,& Grbić, B.. (2016). The formation of tungsten doped Al2O3/ZnO coatings on aluminum by plasma electrolytic oxidation and their application in photocatalysis. in Applied Surface Science
Elsevier., 377, 37-43.
https://doi.org/10.1016/j.apsusc.2016.03.104

Stojadinović S, Vasilić R, Radić N, Tadić N, Stefanov P, Grbić B. The formation of tungsten doped Al2O3/ZnO coatings on aluminum by plasma electrolytic oxidation and their application in photocatalysis. in Applied Surface Science. 2016;377:37-43.
doi:10.1016/j.apsusc.2016.03.104 .

Stojadinović, Stevan, Vasilić, Rastko, Radić, Nenad, Tadić, Nenad, Stefanov, Plamen, Grbić, Boško, "The formation of tungsten doped Al2O3/ZnO coatings on aluminum by plasma electrolytic oxidation and their application in photocatalysis" in Applied Surface Science, 377 (2016):37-43,
https://doi.org/10.1016/j.apsusc.2016.03.104 . .

TY  - JOUR
AU  - Stojadinović, Stevan
AU  - Radić, Nenad
AU  - Grbić, Boško
AU  - Maletić, Slavica
AU  - Stefanov, Plamen
AU  - Pacevski, Aleksandar
AU  - Vasilić, Rastko
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2034
AB  - In this paper, we used plasma electrolytic oxidation (PEO) of titanium in water solution containing 10 g/L Na3PO4 center dot 12H(2)O + 2 g/L Eu2O3 powder for preparation of TiO2:Eu3+ coatings. The surfaces of obtained coatings exhibit a typical PEO porous structure. The energy dispersive X-ray spectroscopy analysis showed that the coatings are mainly composed of Ti, O, P, and Eu; it is observed that Eu content in the coatings increases with PEO time. The X-ray diffraction analysis indicated that the coatings are crystallized and composed of anatase and rutile TiO2 phases, with anatase being the dominant one. X-ray photoelectron spectroscopy revealed that Ti 2p spin-orbit components of TiO2:Eu3+ coatings are shifted towards higher binding energy, with respect to pure TiO2 coatings, suggesting that Eu3+ ions are incorporated into TiO2 lattice. Diffuse reflectance spectroscopy showed that TiO2:Eu3+ coatings exhibit evident red shift with respect to the pure TiO2 coatings. Photoluminescence (PL) emission spectra of TiO2:Eu3+ coatings are characterized by sharp emission bands in orange-red region ascribed to f-f transitions of Eu3+ ions from excited level D-5(0) to lower levels F-7(J) (J=0, 1, 2, 3, and 4). The excitation PL spectra of TiO2:Eu3+ coatings can be divided into two regions: the broad band region from 250 nm to 350 nm associated with charge transfer state of Eu3+ and the series of sharp peaks in the range from 350 nm to 550 rim corresponding to direct excitation of the Eu3+ ions. It is observed that the intensity of peaks in excitation and emission PL spectra increases with the concentration of Eu3+, but the peak positions remain practically unchanged. The ratio of PL emission for electric and magnetic dipole transitions indicates highly asymmetric environment around Eu3+ ions. The photocatalytic activity (PA) of TiO2:Eu3+ coatings is evaluated by measuring the photodegradation of methyl orange under simulated sunlight conditions. It is shown that PEO time, i.e., the amount of Eu3+ incorporated into coatings is an important factor affecting PA; TiO2:Eu3+ coating formed after 1 min of PEO time showed the highest PA.
PB  - Elsevier
T2  - Applied Surface Science
T1  - Structural, photoluminescent and photocatalytic properties of TiO2:Eu3+ coatings formed by plasma electrolytic oxidation
VL  - 370
SP  - 218
EP  - 228
DO  - 10.1016/j.apsusc.2016.02.131
ER  - 

@article{
author = "Stojadinović, Stevan and Radić, Nenad and Grbić, Boško and Maletić, Slavica and Stefanov, Plamen and Pacevski, Aleksandar and Vasilić, Rastko",
year = "2016",
abstract = "In this paper, we used plasma electrolytic oxidation (PEO) of titanium in water solution containing 10 g/L Na3PO4 center dot 12H(2)O + 2 g/L Eu2O3 powder for preparation of TiO2:Eu3+ coatings. The surfaces of obtained coatings exhibit a typical PEO porous structure. The energy dispersive X-ray spectroscopy analysis showed that the coatings are mainly composed of Ti, O, P, and Eu; it is observed that Eu content in the coatings increases with PEO time. The X-ray diffraction analysis indicated that the coatings are crystallized and composed of anatase and rutile TiO2 phases, with anatase being the dominant one. X-ray photoelectron spectroscopy revealed that Ti 2p spin-orbit components of TiO2:Eu3+ coatings are shifted towards higher binding energy, with respect to pure TiO2 coatings, suggesting that Eu3+ ions are incorporated into TiO2 lattice. Diffuse reflectance spectroscopy showed that TiO2:Eu3+ coatings exhibit evident red shift with respect to the pure TiO2 coatings. Photoluminescence (PL) emission spectra of TiO2:Eu3+ coatings are characterized by sharp emission bands in orange-red region ascribed to f-f transitions of Eu3+ ions from excited level D-5(0) to lower levels F-7(J) (J=0, 1, 2, 3, and 4). The excitation PL spectra of TiO2:Eu3+ coatings can be divided into two regions: the broad band region from 250 nm to 350 nm associated with charge transfer state of Eu3+ and the series of sharp peaks in the range from 350 nm to 550 rim corresponding to direct excitation of the Eu3+ ions. It is observed that the intensity of peaks in excitation and emission PL spectra increases with the concentration of Eu3+, but the peak positions remain practically unchanged. The ratio of PL emission for electric and magnetic dipole transitions indicates highly asymmetric environment around Eu3+ ions. The photocatalytic activity (PA) of TiO2:Eu3+ coatings is evaluated by measuring the photodegradation of methyl orange under simulated sunlight conditions. It is shown that PEO time, i.e., the amount of Eu3+ incorporated into coatings is an important factor affecting PA; TiO2:Eu3+ coating formed after 1 min of PEO time showed the highest PA.",
publisher = "Elsevier",
journal = "Applied Surface Science",
title = "Structural, photoluminescent and photocatalytic properties of TiO2:Eu3+ coatings formed by plasma electrolytic oxidation",
volume = "370",
pages = "218-228",
doi = "10.1016/j.apsusc.2016.02.131"
}

Stojadinović, S., Radić, N., Grbić, B., Maletić, S., Stefanov, P., Pacevski, A.,& Vasilić, R.. (2016). Structural, photoluminescent and photocatalytic properties of TiO2:Eu3+ coatings formed by plasma electrolytic oxidation. in Applied Surface Science
Elsevier., 370, 218-228.
https://doi.org/10.1016/j.apsusc.2016.02.131

Stojadinović S, Radić N, Grbić B, Maletić S, Stefanov P, Pacevski A, Vasilić R. Structural, photoluminescent and photocatalytic properties of TiO2:Eu3+ coatings formed by plasma electrolytic oxidation. in Applied Surface Science. 2016;370:218-228.
doi:10.1016/j.apsusc.2016.02.131 .

Stojadinović, Stevan, Radić, Nenad, Grbić, Boško, Maletić, Slavica, Stefanov, Plamen, Pacevski, Aleksandar, Vasilić, Rastko, "Structural, photoluminescent and photocatalytic properties of TiO2:Eu3+ coatings formed by plasma electrolytic oxidation" in Applied Surface Science, 370 (2016):218-228,
https://doi.org/10.1016/j.apsusc.2016.02.131 . .

TY  - JOUR
AU  - Stojadinović, Stevan
AU  - Radić, Nenad
AU  - Grbić, Boško
AU  - Maletić, Slavica
AU  - Stefanov, Plamen
AU  - Pacevski, Aleksandar
AU  - Vasilić, Rastko
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4320
AB  - In this paper, we used plasma electrolytic oxidation (PEO) of titanium in water solution containing 10 g/L Na3PO4 center dot 12H(2)O + 2 g/L Eu2O3 powder for preparation of TiO2:Eu3+ coatings. The surfaces of obtained coatings exhibit a typical PEO porous structure. The energy dispersive X-ray spectroscopy analysis showed that the coatings are mainly composed of Ti, O, P, and Eu; it is observed that Eu content in the coatings increases with PEO time. The X-ray diffraction analysis indicated that the coatings are crystallized and composed of anatase and rutile TiO2 phases, with anatase being the dominant one. X-ray photoelectron spectroscopy revealed that Ti 2p spin-orbit components of TiO2:Eu3+ coatings are shifted towards higher binding energy, with respect to pure TiO2 coatings, suggesting that Eu3+ ions are incorporated into TiO2 lattice. Diffuse reflectance spectroscopy showed that TiO2:Eu3+ coatings exhibit evident red shift with respect to the pure TiO2 coatings. Photoluminescence (PL) emission spectra of TiO2:Eu3+ coatings are characterized by sharp emission bands in orange-red region ascribed to f-f transitions of Eu3+ ions from excited level D-5(0) to lower levels F-7(J) (J=0, 1, 2, 3, and 4). The excitation PL spectra of TiO2:Eu3+ coatings can be divided into two regions: the broad band region from 250 nm to 350 nm associated with charge transfer state of Eu3+ and the series of sharp peaks in the range from 350 nm to 550 rim corresponding to direct excitation of the Eu3+ ions. It is observed that the intensity of peaks in excitation and emission PL spectra increases with the concentration of Eu3+, but the peak positions remain practically unchanged. The ratio of PL emission for electric and magnetic dipole transitions indicates highly asymmetric environment around Eu3+ ions. The photocatalytic activity (PA) of TiO2:Eu3+ coatings is evaluated by measuring the photodegradation of methyl orange under simulated sunlight conditions. It is shown that PEO time, i.e., the amount of Eu3+ incorporated into coatings is an important factor affecting PA; TiO2:Eu3+ coating formed after 1 min of PEO time showed the highest PA.
PB  - Elsevier
T2  - Applied Surface Science
T1  - Structural, photoluminescent and photocatalytic properties of TiO2:Eu3+ coatings formed by plasma electrolytic oxidation
VL  - 370
SP  - 218
EP  - 228
DO  - 10.1016/j.apsusc.2016.02.131
ER  - 

@article{
author = "Stojadinović, Stevan and Radić, Nenad and Grbić, Boško and Maletić, Slavica and Stefanov, Plamen and Pacevski, Aleksandar and Vasilić, Rastko",
year = "2016",
abstract = "In this paper, we used plasma electrolytic oxidation (PEO) of titanium in water solution containing 10 g/L Na3PO4 center dot 12H(2)O + 2 g/L Eu2O3 powder for preparation of TiO2:Eu3+ coatings. The surfaces of obtained coatings exhibit a typical PEO porous structure. The energy dispersive X-ray spectroscopy analysis showed that the coatings are mainly composed of Ti, O, P, and Eu; it is observed that Eu content in the coatings increases with PEO time. The X-ray diffraction analysis indicated that the coatings are crystallized and composed of anatase and rutile TiO2 phases, with anatase being the dominant one. X-ray photoelectron spectroscopy revealed that Ti 2p spin-orbit components of TiO2:Eu3+ coatings are shifted towards higher binding energy, with respect to pure TiO2 coatings, suggesting that Eu3+ ions are incorporated into TiO2 lattice. Diffuse reflectance spectroscopy showed that TiO2:Eu3+ coatings exhibit evident red shift with respect to the pure TiO2 coatings. Photoluminescence (PL) emission spectra of TiO2:Eu3+ coatings are characterized by sharp emission bands in orange-red region ascribed to f-f transitions of Eu3+ ions from excited level D-5(0) to lower levels F-7(J) (J=0, 1, 2, 3, and 4). The excitation PL spectra of TiO2:Eu3+ coatings can be divided into two regions: the broad band region from 250 nm to 350 nm associated with charge transfer state of Eu3+ and the series of sharp peaks in the range from 350 nm to 550 rim corresponding to direct excitation of the Eu3+ ions. It is observed that the intensity of peaks in excitation and emission PL spectra increases with the concentration of Eu3+, but the peak positions remain practically unchanged. The ratio of PL emission for electric and magnetic dipole transitions indicates highly asymmetric environment around Eu3+ ions. The photocatalytic activity (PA) of TiO2:Eu3+ coatings is evaluated by measuring the photodegradation of methyl orange under simulated sunlight conditions. It is shown that PEO time, i.e., the amount of Eu3+ incorporated into coatings is an important factor affecting PA; TiO2:Eu3+ coating formed after 1 min of PEO time showed the highest PA.",
publisher = "Elsevier",
journal = "Applied Surface Science",
title = "Structural, photoluminescent and photocatalytic properties of TiO2:Eu3+ coatings formed by plasma electrolytic oxidation",
volume = "370",
pages = "218-228",
doi = "10.1016/j.apsusc.2016.02.131"
}

Stojadinović, S., Radić, N., Grbić, B., Maletić, S., Stefanov, P., Pacevski, A.,& Vasilić, R.. (2016). Structural, photoluminescent and photocatalytic properties of TiO2:Eu3+ coatings formed by plasma electrolytic oxidation. in Applied Surface Science
Elsevier., 370, 218-228.
https://doi.org/10.1016/j.apsusc.2016.02.131

Stojadinović S, Radić N, Grbić B, Maletić S, Stefanov P, Pacevski A, Vasilić R. Structural, photoluminescent and photocatalytic properties of TiO2:Eu3+ coatings formed by plasma electrolytic oxidation. in Applied Surface Science. 2016;370:218-228.
doi:10.1016/j.apsusc.2016.02.131 .

Stojadinović, Stevan, Radić, Nenad, Grbić, Boško, Maletić, Slavica, Stefanov, Plamen, Pacevski, Aleksandar, Vasilić, Rastko, "Structural, photoluminescent and photocatalytic properties of TiO2:Eu3+ coatings formed by plasma electrolytic oxidation" in Applied Surface Science, 370 (2016):218-228,
https://doi.org/10.1016/j.apsusc.2016.02.131 . .

TY  - THES
AU  - Mudrinić, Tihana
PY  - 2016
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=3656
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:12460/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=48110607
UR  - http://nardus.mpn.gov.rs/123456789/6375
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2562
AB  - Proces elektrooksidacije organskih zagađujućih supstanci se intenzivno ispituje kaojedan od alternativnih načina njihove detekcije i degradacije. Jedan od glavnih problemakoji se javljaju tokom elektrooksidacije fenola je formiranje izolacionog polimernogfilma zbog koga se elektrode veoma brzo deaktiviraju. Trenutno se u ovoj oblasti, kaoistraživački cilj, postavlja dobijanje elektrodnog materijala koji bi u procesuelektrooksidacije fenola istovremeno ispoljio visoku aktivnost i stabilnost.Predmet rada ove doktorske disertacije je usmeren na modifikaciju smektitombogate, bentonitne gline, iz do sada manje ispitanog domaćeg ležišta Mečji Do (polazniuzorka), u smislu dobijanja Fe i Fe,Ni–modifikovanih bentonita koji su nakonkarakterizacije ispitivani kao elektrodni materijali u reakciji elektrooksidacije fenola.Sintetisane su tri grupe materijala. Prva grupa materijala dobijena je tretiranjemuzorka bentonita rastvorima HCl različitih koncentracija pri čemu su ostali uslovi biliisti. Druga grupa materijala je dobijena tretiranjem odabranog kiselotretiranog uzorkasolima nikla (nikl(II) nitrata i nikl(II) acetilacetonata) nakon čega je sledio termičkitretman. Treća grupa materijala je dobijana procesom pilarenja polihidroksi katjonimaaluminijuma, gvožđa i nikla različitih molarnih odnosa.Elektrode na bazi dobijenih materijala dobijene su nanošenjem tankog sloja svakogpojedinačnog uzorka na površinu elektrode od staklastog ugljenika (GC).Cilj rada je bio postizanje što veće stabilnosti GC elektroda u reakcijielektrooksidacije fenola korišćenjem ispitivanih modifikovanih bentonita.Polazni i modifikovani uzorci su karakterisani različitim fizičkohemijskim metodama (hemijska, rendgenostrukturna, infracrvena, termička i teksturalna analiza i EPR spektroskopija). Metoda ciklične voltametrije je korišćena za ispitivanja uticaja modifikacije bentonita na elektrohemijsko ponašanje elektroda na bazi modifikovanih bentonita.Pokazano je da su u polaznom bentonitu (MD) prisutni smektiti kao dominantnefaze, sa odnosom monmorijonita prema bajdelitu 3:2, dok su kristobalit, feldspat, kvarc i kalcit prateći minerali...
AB  - The process of the electro-oxidation of organic pollutants has been intensivelyexamined as one of the alternative methods of their detection and degradation. One of the major problems that occur during the electro-oxidation of phenol is the formation of insulating polymer film which causes rapid deactivation of electrode. Currently, the main goal in this research area is the obtention of electrode materials which would show simultaneously high activity and stability.The subject of this doctoral dissertation is focused on the modification of bentonite –clay rich in smectite – from the Mečji Do domestic, heretofore seldom investigateddeposit (starting sample). The modifications that had been performed resulted in Fe and Fe,Ni-modified bentonite materials, subsequently characterized and tested as electrode material in the reaction of the electro-oxidation of phenol.Three groups of materials were synthesized in this work. The first group wasobtained by treating bentonite samples with HCl solutions of different concentrations,while other treatment conditions were the same. The second group of materials wasobtained by the treatment of a selected acid treated bentonite with different nickel salts (nickel (II) nitrate and nickel (II) acetylacetonate) followed by thermal treatment. The third group of materials was obtained by the pillaring of bentonite using aluminum, iron and nickel polyhydroxy cations in various molar ratios.Electrodes based on the synthesized materials were obtained by coating a glassycarbon (GC) electrode with thin layer of each of the synthesized samples.The aim of this dissertation was to achieve higher stability of the GC electrode in the reaction of electro-oxidation of phenol using the investigated modified bentonites.The starting and modified bentonite samples were characterized using differentphysical-chemical methods (chemical, X-ray diffraction, infrared, thermal and textural analysis, as well as EPR spectroscopy). The influence of the modification of bentonite on the electrochemical behavior of the corresponding modified electrode was examined using cyclic voltammetry...
PB  - Универзитет у Београду, Факултет за физичку хемију
T2  - Универзитет у Београду
T1  - Uticaj interakcije gvožđa i nikla na elektrohemijsko ponašanje elektroda na bazi bentonita modifikovanih kiselinom i polihidroksi katjonima
T1  - The influence of the interaction between iron and nickel on electrochemical behavior of electrodes based on bentonites modified with acids and polyhydroxy cations.
UR  - https://hdl.handle.net/21.15107/rcub_nardus_6375
ER  - 

@phdthesis{
author = "Mudrinić, Tihana",
year = "2016",
abstract = "Proces elektrooksidacije organskih zagađujućih supstanci se intenzivno ispituje kaojedan od alternativnih načina njihove detekcije i degradacije. Jedan od glavnih problemakoji se javljaju tokom elektrooksidacije fenola je formiranje izolacionog polimernogfilma zbog koga se elektrode veoma brzo deaktiviraju. Trenutno se u ovoj oblasti, kaoistraživački cilj, postavlja dobijanje elektrodnog materijala koji bi u procesuelektrooksidacije fenola istovremeno ispoljio visoku aktivnost i stabilnost.Predmet rada ove doktorske disertacije je usmeren na modifikaciju smektitombogate, bentonitne gline, iz do sada manje ispitanog domaćeg ležišta Mečji Do (polazniuzorka), u smislu dobijanja Fe i Fe,Ni–modifikovanih bentonita koji su nakonkarakterizacije ispitivani kao elektrodni materijali u reakciji elektrooksidacije fenola.Sintetisane su tri grupe materijala. Prva grupa materijala dobijena je tretiranjemuzorka bentonita rastvorima HCl različitih koncentracija pri čemu su ostali uslovi biliisti. Druga grupa materijala je dobijena tretiranjem odabranog kiselotretiranog uzorkasolima nikla (nikl(II) nitrata i nikl(II) acetilacetonata) nakon čega je sledio termičkitretman. Treća grupa materijala je dobijana procesom pilarenja polihidroksi katjonimaaluminijuma, gvožđa i nikla različitih molarnih odnosa.Elektrode na bazi dobijenih materijala dobijene su nanošenjem tankog sloja svakogpojedinačnog uzorka na površinu elektrode od staklastog ugljenika (GC).Cilj rada je bio postizanje što veće stabilnosti GC elektroda u reakcijielektrooksidacije fenola korišćenjem ispitivanih modifikovanih bentonita.Polazni i modifikovani uzorci su karakterisani različitim fizičkohemijskim metodama (hemijska, rendgenostrukturna, infracrvena, termička i teksturalna analiza i EPR spektroskopija). Metoda ciklične voltametrije je korišćena za ispitivanja uticaja modifikacije bentonita na elektrohemijsko ponašanje elektroda na bazi modifikovanih bentonita.Pokazano je da su u polaznom bentonitu (MD) prisutni smektiti kao dominantnefaze, sa odnosom monmorijonita prema bajdelitu 3:2, dok su kristobalit, feldspat, kvarc i kalcit prateći minerali..., The process of the electro-oxidation of organic pollutants has been intensivelyexamined as one of the alternative methods of their detection and degradation. One of the major problems that occur during the electro-oxidation of phenol is the formation of insulating polymer film which causes rapid deactivation of electrode. Currently, the main goal in this research area is the obtention of electrode materials which would show simultaneously high activity and stability.The subject of this doctoral dissertation is focused on the modification of bentonite –clay rich in smectite – from the Mečji Do domestic, heretofore seldom investigateddeposit (starting sample). The modifications that had been performed resulted in Fe and Fe,Ni-modified bentonite materials, subsequently characterized and tested as electrode material in the reaction of the electro-oxidation of phenol.Three groups of materials were synthesized in this work. The first group wasobtained by treating bentonite samples with HCl solutions of different concentrations,while other treatment conditions were the same. The second group of materials wasobtained by the treatment of a selected acid treated bentonite with different nickel salts (nickel (II) nitrate and nickel (II) acetylacetonate) followed by thermal treatment. The third group of materials was obtained by the pillaring of bentonite using aluminum, iron and nickel polyhydroxy cations in various molar ratios.Electrodes based on the synthesized materials were obtained by coating a glassycarbon (GC) electrode with thin layer of each of the synthesized samples.The aim of this dissertation was to achieve higher stability of the GC electrode in the reaction of electro-oxidation of phenol using the investigated modified bentonites.The starting and modified bentonite samples were characterized using differentphysical-chemical methods (chemical, X-ray diffraction, infrared, thermal and textural analysis, as well as EPR spectroscopy). The influence of the modification of bentonite on the electrochemical behavior of the corresponding modified electrode was examined using cyclic voltammetry...",
publisher = "Универзитет у Београду, Факултет за физичку хемију",
journal = "Универзитет у Београду",
title = "Uticaj interakcije gvožđa i nikla na elektrohemijsko ponašanje elektroda na bazi bentonita modifikovanih kiselinom i polihidroksi katjonima, The influence of the interaction between iron and nickel on electrochemical behavior of electrodes based on bentonites modified with acids and polyhydroxy cations.",
url = "https://hdl.handle.net/21.15107/rcub_nardus_6375"
}

Mudrinić, T.. (2016). Uticaj interakcije gvožđa i nikla na elektrohemijsko ponašanje elektroda na bazi bentonita modifikovanih kiselinom i polihidroksi katjonima. in Универзитет у Београду
Универзитет у Београду, Факултет за физичку хемију..
https://hdl.handle.net/21.15107/rcub_nardus_6375

Mudrinić T. Uticaj interakcije gvožđa i nikla na elektrohemijsko ponašanje elektroda na bazi bentonita modifikovanih kiselinom i polihidroksi katjonima. in Универзитет у Београду. 2016;.
https://hdl.handle.net/21.15107/rcub_nardus_6375 .

Mudrinić, Tihana, "Uticaj interakcije gvožđa i nikla na elektrohemijsko ponašanje elektroda na bazi bentonita modifikovanih kiselinom i polihidroksi katjonima" in Универзитет у Београду (2016),
https://hdl.handle.net/21.15107/rcub_nardus_6375 .

TY  - JOUR
AU  - Stojadinović, Stevan D.J.
AU  - Tadić, Nenad
AU  - Radić, Nenad
AU  - Stojadinovic, B
AU  - Grbić, Boško
AU  - Vasilić, Rastko
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1722
AB  - Mixed Al2O3/ZnO coatings are prepared by conventional DC plasma electrolytic oxidation (PEO) of aluminum in boric acid and borax solution containing ZnO nanoparticles. Scanning electron microscopy equipped with energy dispersive x-ray spectroscopy, x-ray diffraction, and Raman spectroscopy were employed to monitor morphological, structural, and chemical changes of obtained oxide coatings. It was found that chemical and phase compositions strongly depend on PEO time. Photoluminescence and photodegradation of methyl orange served as a tool to estimate potential application of Al2O3/ZnO coatings. Photoluminescence measurements showed that clearly observable bands inherent to Al2O3 and ZnO are present in formed coatings, pointing at oxygen vacancies as the main source of photoluminescence. Longer PEO processing times proved beneficial for enhanced photocatalytic activity.
PB  - Elsevier
T2  - Surface and Coatings Technology
T1  - Synthesis and characterization of Al2O3/ZnO coatings formed by plasma electrolytic oxidation
VL  - 276
SP  - 573
EP  - 579
DO  - 10.1016/j.surfcoat.2015.06.013
ER  - 

@article{
author = "Stojadinović, Stevan D.J. and Tadić, Nenad and Radić, Nenad and Stojadinovic, B and Grbić, Boško and Vasilić, Rastko",
year = "2015",
abstract = "Mixed Al2O3/ZnO coatings are prepared by conventional DC plasma electrolytic oxidation (PEO) of aluminum in boric acid and borax solution containing ZnO nanoparticles. Scanning electron microscopy equipped with energy dispersive x-ray spectroscopy, x-ray diffraction, and Raman spectroscopy were employed to monitor morphological, structural, and chemical changes of obtained oxide coatings. It was found that chemical and phase compositions strongly depend on PEO time. Photoluminescence and photodegradation of methyl orange served as a tool to estimate potential application of Al2O3/ZnO coatings. Photoluminescence measurements showed that clearly observable bands inherent to Al2O3 and ZnO are present in formed coatings, pointing at oxygen vacancies as the main source of photoluminescence. Longer PEO processing times proved beneficial for enhanced photocatalytic activity.",
publisher = "Elsevier",
journal = "Surface and Coatings Technology",
title = "Synthesis and characterization of Al2O3/ZnO coatings formed by plasma electrolytic oxidation",
volume = "276",
pages = "573-579",
doi = "10.1016/j.surfcoat.2015.06.013"
}

Stojadinović, S. D.J., Tadić, N., Radić, N., Stojadinovic, B., Grbić, B.,& Vasilić, R.. (2015). Synthesis and characterization of Al2O3/ZnO coatings formed by plasma electrolytic oxidation. in Surface and Coatings Technology
Elsevier., 276, 573-579.
https://doi.org/10.1016/j.surfcoat.2015.06.013

Stojadinović SD, Tadić N, Radić N, Stojadinovic B, Grbić B, Vasilić R. Synthesis and characterization of Al2O3/ZnO coatings formed by plasma electrolytic oxidation. in Surface and Coatings Technology. 2015;276:573-579.
doi:10.1016/j.surfcoat.2015.06.013 .

Stojadinović, Stevan D.J., Tadić, Nenad, Radić, Nenad, Stojadinovic, B, Grbić, Boško, Vasilić, Rastko, "Synthesis and characterization of Al2O3/ZnO coatings formed by plasma electrolytic oxidation" in Surface and Coatings Technology, 276 (2015):573-579,
https://doi.org/10.1016/j.surfcoat.2015.06.013 . .

TY  - JOUR
AU  - Vasilić, Rastko
AU  - Stojadinović, Stevan D.J.
AU  - Radić, Nenad
AU  - Stefanov, P
AU  - Dohcevic-Mitrovic, Z
AU  - Grbić, Boško
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1744
AB  - In this paper, we have investigated one-step preparation of vanadium doped TiO2 coatings formed by plasma electrolytic oxidation (PEO) of titanium in electrolyte containing 10 g/L Na3PO4 center dot 12H(2)O + 0.5 g/L NH4VO3. The morphology, phase structure, and elemental composition of the formed coatings were characterized by atomic force microscopy (AFM), x-ray diffraction (XRD), and x-ray photoelectron spectroscopy (XPS) techniques. Ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) was employed to evaluate the band gap energy of obtained coatings. Vanadium doped TiO2 coatings are partly crystallized and mainly composed of anatase phase TiO2, with up to about 2 wt% of vanadium present in the surface layer of the oxide. The valence band photoelectron spectra and UV-Vis DRS showed that vanadium doped TiO2 coatings exhibit notable red shift with respect to the pure TiO2 coatings. The photocatalytic activity was evaluated by monitoring the degradation of methyl orange under simulated sunlight conditions. Photocatalytic activity of vanadium doped TiO2 coatings increases with PEO time. Prolonged PEO times result in higher roughness of obtained coatings, thus increasing surface area available for methyl orange degradation. Vanadium doped TiO2 coatings obtained after 180 s of PEO time exhibit the best photocatalytic activity and about 67% of methyl orange is degraded after 12 h of irradiation under simulated sunlight.
PB  - Elsevier Science Sa, Lausanne
T2  - Materials Chemistry and Physics
T1  - One-step preparation and photocatalytic performance of vanadium doped TiO2 coatings
VL  - 151
SP  - 337
EP  - 344
DO  - 10.1016/j.matchemphys.2014.11.077
ER  - 

@article{
author = "Vasilić, Rastko and Stojadinović, Stevan D.J. and Radić, Nenad and Stefanov, P and Dohcevic-Mitrovic, Z and Grbić, Boško",
year = "2015",
abstract = "In this paper, we have investigated one-step preparation of vanadium doped TiO2 coatings formed by plasma electrolytic oxidation (PEO) of titanium in electrolyte containing 10 g/L Na3PO4 center dot 12H(2)O + 0.5 g/L NH4VO3. The morphology, phase structure, and elemental composition of the formed coatings were characterized by atomic force microscopy (AFM), x-ray diffraction (XRD), and x-ray photoelectron spectroscopy (XPS) techniques. Ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) was employed to evaluate the band gap energy of obtained coatings. Vanadium doped TiO2 coatings are partly crystallized and mainly composed of anatase phase TiO2, with up to about 2 wt% of vanadium present in the surface layer of the oxide. The valence band photoelectron spectra and UV-Vis DRS showed that vanadium doped TiO2 coatings exhibit notable red shift with respect to the pure TiO2 coatings. The photocatalytic activity was evaluated by monitoring the degradation of methyl orange under simulated sunlight conditions. Photocatalytic activity of vanadium doped TiO2 coatings increases with PEO time. Prolonged PEO times result in higher roughness of obtained coatings, thus increasing surface area available for methyl orange degradation. Vanadium doped TiO2 coatings obtained after 180 s of PEO time exhibit the best photocatalytic activity and about 67% of methyl orange is degraded after 12 h of irradiation under simulated sunlight.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Materials Chemistry and Physics",
title = "One-step preparation and photocatalytic performance of vanadium doped TiO2 coatings",
volume = "151",
pages = "337-344",
doi = "10.1016/j.matchemphys.2014.11.077"
}

Vasilić, R., Stojadinović, S. D.J., Radić, N., Stefanov, P., Dohcevic-Mitrovic, Z.,& Grbić, B.. (2015). One-step preparation and photocatalytic performance of vanadium doped TiO2 coatings. in Materials Chemistry and Physics
Elsevier Science Sa, Lausanne., 151, 337-344.
https://doi.org/10.1016/j.matchemphys.2014.11.077

Vasilić R, Stojadinović SD, Radić N, Stefanov P, Dohcevic-Mitrovic Z, Grbić B. One-step preparation and photocatalytic performance of vanadium doped TiO2 coatings. in Materials Chemistry and Physics. 2015;151:337-344.
doi:10.1016/j.matchemphys.2014.11.077 .

Vasilić, Rastko, Stojadinović, Stevan D.J., Radić, Nenad, Stefanov, P, Dohcevic-Mitrovic, Z, Grbić, Boško, "One-step preparation and photocatalytic performance of vanadium doped TiO2 coatings" in Materials Chemistry and Physics, 151 (2015):337-344,
https://doi.org/10.1016/j.matchemphys.2014.11.077 . .

TY  - JOUR
AU  - Petrović, Srđan
AU  - Stojadinović, Stevan D.J.
AU  - Rožić, Ljiljana
AU  - Radić, Nenad
AU  - Grbić, Boško
AU  - Vasilić, Rastko
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1752
AB  - Plasma electrolytic oxidation of titanium in 12-tungstosilicic acid solution was investigated as a model reaction. The influence of the process parameters (concentration of 12-tungstosilicic acid solution, current density, and time) on the selected process response (efficiency of the methyl orange photodecolorization on the TiO2/WO3 coatings) was studied. A mathematical model was developed using a second-order response surface model with a central composite design incorporating the above-mentioned process parameters. The statistical analysis of experimental data indicates that a concentration of 12-tungstosilicic acid solution; process time, interaction between concentration and process time, and interaction between concentration and quadratic of process time have a significant effect on the methyl orange photodecolorization. Besides, the results show that obtained data were adequately fitted into the second-order polynomial model, since the calculated model F value (39.28) is higher than the critical F value. The values of coefficient of determination (R-2 = 0.960) and adjusted coefficient of determination (R-Adj.(2) = 0.937) are close to 1, indicating a high correlation between the observed and the predicted values. This model can also be useful for setting an optimum value of the process parameters for achieving the maximum efficiency of the methyl orange photodecolorization. Under the optimum conditions established in the region of experimentation (C = 1.14 . 10(-3) M, j = 153 mA/cm(2), and t = 58.9 s), a 38.6% (test duration of 8 h) efficiency of the methyl orange photodecolorization is obtained.
PB  - Elsevier
T2  - Surface and Coatings Technology
T1  - Process modelling and analysis of plasma electrolytic oxidation of titanium for TiO2/WO3 thin film photocatalysts by response surface methodology
VL  - 269
SP  - 250
EP  - 257
DO  - 10.1016/j.surfcoat.2014.12.026
ER  - 

@article{
author = "Petrović, Srđan and Stojadinović, Stevan D.J. and Rožić, Ljiljana and Radić, Nenad and Grbić, Boško and Vasilić, Rastko",
year = "2015",
abstract = "Plasma electrolytic oxidation of titanium in 12-tungstosilicic acid solution was investigated as a model reaction. The influence of the process parameters (concentration of 12-tungstosilicic acid solution, current density, and time) on the selected process response (efficiency of the methyl orange photodecolorization on the TiO2/WO3 coatings) was studied. A mathematical model was developed using a second-order response surface model with a central composite design incorporating the above-mentioned process parameters. The statistical analysis of experimental data indicates that a concentration of 12-tungstosilicic acid solution; process time, interaction between concentration and process time, and interaction between concentration and quadratic of process time have a significant effect on the methyl orange photodecolorization. Besides, the results show that obtained data were adequately fitted into the second-order polynomial model, since the calculated model F value (39.28) is higher than the critical F value. The values of coefficient of determination (R-2 = 0.960) and adjusted coefficient of determination (R-Adj.(2) = 0.937) are close to 1, indicating a high correlation between the observed and the predicted values. This model can also be useful for setting an optimum value of the process parameters for achieving the maximum efficiency of the methyl orange photodecolorization. Under the optimum conditions established in the region of experimentation (C = 1.14 . 10(-3) M, j = 153 mA/cm(2), and t = 58.9 s), a 38.6% (test duration of 8 h) efficiency of the methyl orange photodecolorization is obtained.",
publisher = "Elsevier",
journal = "Surface and Coatings Technology",
title = "Process modelling and analysis of plasma electrolytic oxidation of titanium for TiO2/WO3 thin film photocatalysts by response surface methodology",
volume = "269",
pages = "250-257",
doi = "10.1016/j.surfcoat.2014.12.026"
}

Petrović, S., Stojadinović, S. D.J., Rožić, L., Radić, N., Grbić, B.,& Vasilić, R.. (2015). Process modelling and analysis of plasma electrolytic oxidation of titanium for TiO2/WO3 thin film photocatalysts by response surface methodology. in Surface and Coatings Technology
Elsevier., 269, 250-257.
https://doi.org/10.1016/j.surfcoat.2014.12.026

Petrović S, Stojadinović SD, Rožić L, Radić N, Grbić B, Vasilić R. Process modelling and analysis of plasma electrolytic oxidation of titanium for TiO2/WO3 thin film photocatalysts by response surface methodology. in Surface and Coatings Technology. 2015;269:250-257.
doi:10.1016/j.surfcoat.2014.12.026 .

Petrović, Srđan, Stojadinović, Stevan D.J., Rožić, Ljiljana, Radić, Nenad, Grbić, Boško, Vasilić, Rastko, "Process modelling and analysis of plasma electrolytic oxidation of titanium for TiO2/WO3 thin film photocatalysts by response surface methodology" in Surface and Coatings Technology, 269 (2015):250-257,
https://doi.org/10.1016/j.surfcoat.2014.12.026 . .

TY  - JOUR
AU  - Rožić, Ljiljana
AU  - Grbić, Boško
AU  - Petrović, Srđan
AU  - Radić, Nenad
AU  - Damjanović, Ljiljana
AU  - Vuković, Zorica
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1788
AB  - This paper provides the correlation between the catalytic activity and selectivity of catalysts with various loadings of heteropolyacids over bentonite in the vapour phase 2-propanol oxidation. The catalysts are characterised by energy dispersive spectroscopy, differential scanning calorimeter, ammonia temperature programmed desorption, infrared spectroscopy and a nitrogen adsorption/desorption method. Energy dispersive spectroscopy results have shown satisfactory agreement regarding chemical composition that corresponds to the desired content of heteropolyacids on bentonite. Thermal analysis confirmed the thermal stability of catalysts under the investigated region of oxidation reaction. NH3-TPD spectra demonstrated that all catalysts include two types of acidic sites: weak adsorption centres up to 390 K and a broad distribution of stronger acidic sites at higher temperatures. The catalysts were active in the vapour-phase conversion of 2-propanol to acetone in the temperature region of 343-553 K. An increase of HPW loading improves selectivity towards acetone formation.
PB  - Elsevier Science Sa, Lausanne
T2  - Materials Chemistry and Physics
T1  - The tungsten heteropolyacid supported on activated bentonites as catalyst for selective oxidation of 2-propanol
VL  - 167
SP  - 42
EP  - 48
DO  - 10.1016/j.matchemphys.2015.09.040
ER  - 

@article{
author = "Rožić, Ljiljana and Grbić, Boško and Petrović, Srđan and Radić, Nenad and Damjanović, Ljiljana and Vuković, Zorica",
year = "2015",
abstract = "This paper provides the correlation between the catalytic activity and selectivity of catalysts with various loadings of heteropolyacids over bentonite in the vapour phase 2-propanol oxidation. The catalysts are characterised by energy dispersive spectroscopy, differential scanning calorimeter, ammonia temperature programmed desorption, infrared spectroscopy and a nitrogen adsorption/desorption method. Energy dispersive spectroscopy results have shown satisfactory agreement regarding chemical composition that corresponds to the desired content of heteropolyacids on bentonite. Thermal analysis confirmed the thermal stability of catalysts under the investigated region of oxidation reaction. NH3-TPD spectra demonstrated that all catalysts include two types of acidic sites: weak adsorption centres up to 390 K and a broad distribution of stronger acidic sites at higher temperatures. The catalysts were active in the vapour-phase conversion of 2-propanol to acetone in the temperature region of 343-553 K. An increase of HPW loading improves selectivity towards acetone formation.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Materials Chemistry and Physics",
title = "The tungsten heteropolyacid supported on activated bentonites as catalyst for selective oxidation of 2-propanol",
volume = "167",
pages = "42-48",
doi = "10.1016/j.matchemphys.2015.09.040"
}

Rožić, L., Grbić, B., Petrović, S., Radić, N., Damjanović, L.,& Vuković, Z.. (2015). The tungsten heteropolyacid supported on activated bentonites as catalyst for selective oxidation of 2-propanol. in Materials Chemistry and Physics
Elsevier Science Sa, Lausanne., 167, 42-48.
https://doi.org/10.1016/j.matchemphys.2015.09.040

Rožić L, Grbić B, Petrović S, Radić N, Damjanović L, Vuković Z. The tungsten heteropolyacid supported on activated bentonites as catalyst for selective oxidation of 2-propanol. in Materials Chemistry and Physics. 2015;167:42-48.
doi:10.1016/j.matchemphys.2015.09.040 .

Rožić, Ljiljana, Grbić, Boško, Petrović, Srđan, Radić, Nenad, Damjanović, Ljiljana, Vuković, Zorica, "The tungsten heteropolyacid supported on activated bentonites as catalyst for selective oxidation of 2-propanol" in Materials Chemistry and Physics, 167 (2015):42-48,
https://doi.org/10.1016/j.matchemphys.2015.09.040 . .

TY  - JOUR
AU  - Stojadinović, Stevan D.J.
AU  - Vasilić, Rastko
AU  - Radić, Nenad
AU  - Grbić, Boško
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1802
AB  - In this paper, we have investigated photoluminescence and photocatalytic properties of zirconia films formed by plasma electrolytic oxidation (PEO) of zirconium foil in 0.1 M water solution of citric acid. Zirconia films with diverse morphology and phase structure are formed varying the time of PEO process. Characterization by atomic force microscopy and X-ray diffraction shows that obtained zirconia films mostly consist of monoclinic ZrO2 phase, while corresponding roughness and crystallite size increases with PEO time. Diffuse reflectance spectroscopy has shown that zirconia films have a broad absorption band in the range from 200 nm to 330 nm, indicating that zirconia films could be used as a photocatalyst using ultraviolet radiation. Strong photoluminescence bands are present in spectra featuring four distinct peaks in the 300-600 nm range. The peaks are centered at about 418 nm, 440 nm, 464 nm, and 495 nm. Apparent increase of photoluminescence intensity with PEO time is related to an increase of oxygen vacancy defects in zirconia films formed during the process. Also, higher concentration of oxygen vacancy defects in zirconia films result in higher photocatalytic activity.
PB  - Elsevier
T2  - Optical Materials
T1  - Zirconia films formed by plasma electrolytic oxidation: Photo luminescent and photocatalytic properties
VL  - 40
SP  - 20
EP  - 25
DO  - 10.1016/j.optmat.2014.11.041
ER  - 

@article{
author = "Stojadinović, Stevan D.J. and Vasilić, Rastko and Radić, Nenad and Grbić, Boško",
year = "2015",
abstract = "In this paper, we have investigated photoluminescence and photocatalytic properties of zirconia films formed by plasma electrolytic oxidation (PEO) of zirconium foil in 0.1 M water solution of citric acid. Zirconia films with diverse morphology and phase structure are formed varying the time of PEO process. Characterization by atomic force microscopy and X-ray diffraction shows that obtained zirconia films mostly consist of monoclinic ZrO2 phase, while corresponding roughness and crystallite size increases with PEO time. Diffuse reflectance spectroscopy has shown that zirconia films have a broad absorption band in the range from 200 nm to 330 nm, indicating that zirconia films could be used as a photocatalyst using ultraviolet radiation. Strong photoluminescence bands are present in spectra featuring four distinct peaks in the 300-600 nm range. The peaks are centered at about 418 nm, 440 nm, 464 nm, and 495 nm. Apparent increase of photoluminescence intensity with PEO time is related to an increase of oxygen vacancy defects in zirconia films formed during the process. Also, higher concentration of oxygen vacancy defects in zirconia films result in higher photocatalytic activity.",
publisher = "Elsevier",
journal = "Optical Materials",
title = "Zirconia films formed by plasma electrolytic oxidation: Photo luminescent and photocatalytic properties",
volume = "40",
pages = "20-25",
doi = "10.1016/j.optmat.2014.11.041"
}

Stojadinović, S. D.J., Vasilić, R., Radić, N.,& Grbić, B.. (2015). Zirconia films formed by plasma electrolytic oxidation: Photo luminescent and photocatalytic properties. in Optical Materials
Elsevier., 40, 20-25.
https://doi.org/10.1016/j.optmat.2014.11.041

Stojadinović SD, Vasilić R, Radić N, Grbić B. Zirconia films formed by plasma electrolytic oxidation: Photo luminescent and photocatalytic properties. in Optical Materials. 2015;40:20-25.
doi:10.1016/j.optmat.2014.11.041 .

Stojadinović, Stevan D.J., Vasilić, Rastko, Radić, Nenad, Grbić, Boško, "Zirconia films formed by plasma electrolytic oxidation: Photo luminescent and photocatalytic properties" in Optical Materials, 40 (2015):20-25,
https://doi.org/10.1016/j.optmat.2014.11.041 . .

TY  - JOUR
AU  - Stojadinović, Stevan
AU  - Tadić, Nenad
AU  - Radić, Nenad
AU  - Stefanov, Plamen
AU  - Grbić, Boško
AU  - Vasilić, Rastko
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1817
AB  - This article reports on properties of oxide films obtained by anodization of niobium in phosphoric acid before and after the dielectric breakdown. Weak anodic luminescence of barrier oxide films formed during the anodization of niobium is correlated to the existence of morphological defects in the oxide layer. Small sized sparks generated by dielectric breakdown of formed oxide film cause rapid increase of luminescence intensity. The luminescence spectrum of obtained films on niobium under spark discharging is composed of continuum radiation and spectral lines caused by electronic spark discharging transitions in oxygen and hydrogen atoms. Oxide films formed before the breakdown are amorphous, while after the breakdown oxide films are partly crystalline and mainly composed of Nb2O5 hexagonal phase. The photocatalytic activity of obtained oxide films after the breakdown was investigated by monitoring the degradation of methyl orange. Increase of the photocatalytic activity with time is related to an increase of oxygen vacancy defects in oxide films formed during the process. Also, higher concentration of oxygen vacancy defects in oxide films results in higher photoluminescence intensity.
PB  - Elsevier
T2  - Applied Surface Science
T1  - Anodic luminescence, structural, photoluminescent, and photocatalytic properties of anodic oxide films grown on niobium in phosphoric acid
VL  - 355
SP  - 912
EP  - 920
DO  - 10.1016/j.apsusc.2015.07.174
ER  - 

@article{
author = "Stojadinović, Stevan and Tadić, Nenad and Radić, Nenad and Stefanov, Plamen and Grbić, Boško and Vasilić, Rastko",
year = "2015",
abstract = "This article reports on properties of oxide films obtained by anodization of niobium in phosphoric acid before and after the dielectric breakdown. Weak anodic luminescence of barrier oxide films formed during the anodization of niobium is correlated to the existence of morphological defects in the oxide layer. Small sized sparks generated by dielectric breakdown of formed oxide film cause rapid increase of luminescence intensity. The luminescence spectrum of obtained films on niobium under spark discharging is composed of continuum radiation and spectral lines caused by electronic spark discharging transitions in oxygen and hydrogen atoms. Oxide films formed before the breakdown are amorphous, while after the breakdown oxide films are partly crystalline and mainly composed of Nb2O5 hexagonal phase. The photocatalytic activity of obtained oxide films after the breakdown was investigated by monitoring the degradation of methyl orange. Increase of the photocatalytic activity with time is related to an increase of oxygen vacancy defects in oxide films formed during the process. Also, higher concentration of oxygen vacancy defects in oxide films results in higher photoluminescence intensity.",
publisher = "Elsevier",
journal = "Applied Surface Science",
title = "Anodic luminescence, structural, photoluminescent, and photocatalytic properties of anodic oxide films grown on niobium in phosphoric acid",
volume = "355",
pages = "912-920",
doi = "10.1016/j.apsusc.2015.07.174"
}

Stojadinović, S., Tadić, N., Radić, N., Stefanov, P., Grbić, B.,& Vasilić, R.. (2015). Anodic luminescence, structural, photoluminescent, and photocatalytic properties of anodic oxide films grown on niobium in phosphoric acid. in Applied Surface Science
Elsevier., 355, 912-920.
https://doi.org/10.1016/j.apsusc.2015.07.174

Stojadinović S, Tadić N, Radić N, Stefanov P, Grbić B, Vasilić R. Anodic luminescence, structural, photoluminescent, and photocatalytic properties of anodic oxide films grown on niobium in phosphoric acid. in Applied Surface Science. 2015;355:912-920.
doi:10.1016/j.apsusc.2015.07.174 .

Stojadinović, Stevan, Tadić, Nenad, Radić, Nenad, Stefanov, Plamen, Grbić, Boško, Vasilić, Rastko, "Anodic luminescence, structural, photoluminescent, and photocatalytic properties of anodic oxide films grown on niobium in phosphoric acid" in Applied Surface Science, 355 (2015):912-920,
https://doi.org/10.1016/j.apsusc.2015.07.174 . .

TY  - CONF
AU  - Mudrinić, Tihana
AU  - Mojović, Zorica
AU  - Milutinović Nikolić, Aleksandra
AU  - Lončarević, Davor
AU  - Čolović, Božana
AU  - Jokanović, Vukoman
AU  - Jovanović, Dušan
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7017
AB  - Smectites are phyllosilicates of 2:1 type, meaning that octahedral sheet in sandwiched between two tetrahedral sheets. Due to isomorphous substitutions (Al3+ or Fe3+ for tetrahedral Si4+ and Mg2+, Fe2+ or Fe3+ for octahedral Al3+) these sheets have resulting negative charge. Hydrated cations in interlayer region neutralize negative charge. Acid activation of clays consists of mixing clay with acid solution. During acid treatment of clay interlayer cations are replaced by H+ ions what is followed by dissolution of structural cations. The extent of acid activation can be controlled by several factors: the concentration of acid, the ratio between clay and acid solution, temperature and duration of contract between acid and clay. 
In this paper is to investigate acid activation of smectite under very mild conditions. The purpose of this activation is exposing of presence Fe2+/Fe3+ ions to the environment and subsequent investigation of obtained material as an electrode material. The obtained materials were characterized by XRD and FTIR technique. 
According to X-ray diffraction patterns smectite is the main constituent of the investigated clay. The obtained basal spacing d001=1.52 indicates that Ca2+ is the main exchangeable cation, defining raw clay as Ca-bentonite. The XRD analysis confirmed that conditions applied for acid activation were mild enough not to disturb crystal structure of smectite. The lines corresponding to smectite (011 and 060) are present at sample treated with the highest used concentration although in lower intensity indicating that dissolution of clay mineral was partial as intended.  
The three bending vibrations of hydroxyl groups associated with Al3+, Fe2+ and Mg2+ (915 cm-1, 875 cm-1 and 848 cm-1) were present in the FTIR spectra of starting and acid activated samples confirming that acid activation did not completely removed iron ions from smectite framework. 
The acid activated clay samples were tested as electrode materials in acidic electrolyte, 0.1 H2SO4. Aside from current rise at potential range limits due to hydrogen and oxygen evolution, presented CV’s have only one feature at potential around 0.4 V. This peak is ascribed to Fe3+/Fe2+ oxidation/reduction process. The current maximum are obtained for samples treated with 1 M and 4.5 M HCl. The observed potential for oxido-reduction for Fe3+/Fe2+ couple are lower than the standard potential for aqueous Fe3+/Fe2+ couple (+0.77  vs. SHE). The reduction potential is lower for structural Fe3+ than for solution Fe3+. The shift in reduction potential observed for different samples is driven by change of the ratio of Fe(II) to Fe(III) species. The Fe3+/Fe2+ ratio can significantly influence the application of material as catalyst. The acid activation provides an easy way to modify clay to desire
PB  - Belgrade : Vinča Institute of Nuclear Sciences
C3  - Programme and the Book of Abstracts - ROSOV pin 2014, Second Regional Roundtable: Refractory Process and Nanotechnology
T1  - Electrochemical behavior of acid activated clays
SP  - 151
EP  - 152
DO  - 978-86-7306-125-2
ER  - 

@conference{
author = "Mudrinić, Tihana and Mojović, Zorica and Milutinović Nikolić, Aleksandra and Lončarević, Davor and Čolović, Božana and Jokanović, Vukoman and Jovanović, Dušan",
year = "2014",
abstract = "Smectites are phyllosilicates of 2:1 type, meaning that octahedral sheet in sandwiched between two tetrahedral sheets. Due to isomorphous substitutions (Al3+ or Fe3+ for tetrahedral Si4+ and Mg2+, Fe2+ or Fe3+ for octahedral Al3+) these sheets have resulting negative charge. Hydrated cations in interlayer region neutralize negative charge. Acid activation of clays consists of mixing clay with acid solution. During acid treatment of clay interlayer cations are replaced by H+ ions what is followed by dissolution of structural cations. The extent of acid activation can be controlled by several factors: the concentration of acid, the ratio between clay and acid solution, temperature and duration of contract between acid and clay. 
In this paper is to investigate acid activation of smectite under very mild conditions. The purpose of this activation is exposing of presence Fe2+/Fe3+ ions to the environment and subsequent investigation of obtained material as an electrode material. The obtained materials were characterized by XRD and FTIR technique. 
According to X-ray diffraction patterns smectite is the main constituent of the investigated clay. The obtained basal spacing d001=1.52 indicates that Ca2+ is the main exchangeable cation, defining raw clay as Ca-bentonite. The XRD analysis confirmed that conditions applied for acid activation were mild enough not to disturb crystal structure of smectite. The lines corresponding to smectite (011 and 060) are present at sample treated with the highest used concentration although in lower intensity indicating that dissolution of clay mineral was partial as intended.  
The three bending vibrations of hydroxyl groups associated with Al3+, Fe2+ and Mg2+ (915 cm-1, 875 cm-1 and 848 cm-1) were present in the FTIR spectra of starting and acid activated samples confirming that acid activation did not completely removed iron ions from smectite framework. 
The acid activated clay samples were tested as electrode materials in acidic electrolyte, 0.1 H2SO4. Aside from current rise at potential range limits due to hydrogen and oxygen evolution, presented CV’s have only one feature at potential around 0.4 V. This peak is ascribed to Fe3+/Fe2+ oxidation/reduction process. The current maximum are obtained for samples treated with 1 M and 4.5 M HCl. The observed potential for oxido-reduction for Fe3+/Fe2+ couple are lower than the standard potential for aqueous Fe3+/Fe2+ couple (+0.77  vs. SHE). The reduction potential is lower for structural Fe3+ than for solution Fe3+. The shift in reduction potential observed for different samples is driven by change of the ratio of Fe(II) to Fe(III) species. The Fe3+/Fe2+ ratio can significantly influence the application of material as catalyst. The acid activation provides an easy way to modify clay to desire",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences",
journal = "Programme and the Book of Abstracts - ROSOV pin 2014, Second Regional Roundtable: Refractory Process and Nanotechnology",
title = "Electrochemical behavior of acid activated clays",
pages = "151-152",
doi = "978-86-7306-125-2"
}

Mudrinić, T., Mojović, Z., Milutinović Nikolić, A., Lončarević, D., Čolović, B., Jokanović, V.,& Jovanović, D.. (2014). Electrochemical behavior of acid activated clays. in Programme and the Book of Abstracts - ROSOV pin 2014, Second Regional Roundtable: Refractory Process and Nanotechnology
Belgrade : Vinča Institute of Nuclear Sciences., 151-152.
https://doi.org/978-86-7306-125-2

Mudrinić T, Mojović Z, Milutinović Nikolić A, Lončarević D, Čolović B, Jokanović V, Jovanović D. Electrochemical behavior of acid activated clays. in Programme and the Book of Abstracts - ROSOV pin 2014, Second Regional Roundtable: Refractory Process and Nanotechnology. 2014;:151-152.
doi:978-86-7306-125-2 .

Mudrinić, Tihana, Mojović, Zorica, Milutinović Nikolić, Aleksandra, Lončarević, Davor, Čolović, Božana, Jokanović, Vukoman, Jovanović, Dušan, "Electrochemical behavior of acid activated clays" in Programme and the Book of Abstracts - ROSOV pin 2014, Second Regional Roundtable: Refractory Process and Nanotechnology (2014):151-152,
https://doi.org/978-86-7306-125-2 . .

TY  - JOUR
AU  - Perić, Tamara O.
AU  - Marković, Dejan
AU  - Radojević, Vesna
AU  - Jančić-Heinemann, Radmila
AU  - Petrovic, Bojan B
AU  - Lamovec, Jelena
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1469
AB  - Purpose: The purpose of the study was to evaluate the surface characteristics of demineralized enamel after treatment with pastes containing casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) or casein phosphopeptide-amorphous calcium fluoride phosphate (CPP-ACFP) and to compare their efficacy with that of 0.05% NaF. Methods: Following formation of the artificial carious lesion, enamel slabs were divided into 4 groups (CPP-ACP, CPP-ACFP, 0.05% NaF and control) and submitted to a chemical caries model. Remineralization potential was examined using scanning electron microscope, energy-dispersive spectroscopy (EDS) and microhardness test. Scanning electron microphotographs were analyzed for area, minimal, maximal and mean diameter, perimeter, roundness and number of enamel defects and percentage of tooth surface affected by defects. Results: Treatment with 0.05% NaF partly reduced the appearance of enamel defects when compared with irregular demineralized enamel. Treatment with CPP-ACP or CPP-ACFP resulted in occlusion of defects which produced more flattened enamel surface. Image analysis revealed reduction of the dimensions of the defects in the 3 experimental groups. Treatment with CPP-ACFP decreased the number of enamel defects when compared with demineralized enamel. The EDS analysis did not show differences in Ca/O, P/O and Ca/P ratios between the groups (P>0.05). Microhardness test revealed significant effects of CPP-ACP and CPP-ACFP (P LT 0.05). Conclusions: Pastes containing CPP-ACP or CPP-ACFP showed potential to remineralize enamel surface lesions.
PB  - Wichtig Editore, Milan
T2  - Journal of Applied Biomaterials & Functional Materials
T1  - Influence of pastes containing casein phosphopeptide-amorphous calcium phosphate on surface of demineralized enamel
VL  - 12
IS  - 3
SP  - 234
EP  - 239
DO  - 10.5301/jabfm.5000194
ER  - 

@article{
author = "Perić, Tamara O. and Marković, Dejan and Radojević, Vesna and Jančić-Heinemann, Radmila and Petrovic, Bojan B and Lamovec, Jelena",
year = "2014",
abstract = "Purpose: The purpose of the study was to evaluate the surface characteristics of demineralized enamel after treatment with pastes containing casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) or casein phosphopeptide-amorphous calcium fluoride phosphate (CPP-ACFP) and to compare their efficacy with that of 0.05% NaF. Methods: Following formation of the artificial carious lesion, enamel slabs were divided into 4 groups (CPP-ACP, CPP-ACFP, 0.05% NaF and control) and submitted to a chemical caries model. Remineralization potential was examined using scanning electron microscope, energy-dispersive spectroscopy (EDS) and microhardness test. Scanning electron microphotographs were analyzed for area, minimal, maximal and mean diameter, perimeter, roundness and number of enamel defects and percentage of tooth surface affected by defects. Results: Treatment with 0.05% NaF partly reduced the appearance of enamel defects when compared with irregular demineralized enamel. Treatment with CPP-ACP or CPP-ACFP resulted in occlusion of defects which produced more flattened enamel surface. Image analysis revealed reduction of the dimensions of the defects in the 3 experimental groups. Treatment with CPP-ACFP decreased the number of enamel defects when compared with demineralized enamel. The EDS analysis did not show differences in Ca/O, P/O and Ca/P ratios between the groups (P>0.05). Microhardness test revealed significant effects of CPP-ACP and CPP-ACFP (P LT 0.05). Conclusions: Pastes containing CPP-ACP or CPP-ACFP showed potential to remineralize enamel surface lesions.",
publisher = "Wichtig Editore, Milan",
journal = "Journal of Applied Biomaterials & Functional Materials",
title = "Influence of pastes containing casein phosphopeptide-amorphous calcium phosphate on surface of demineralized enamel",
volume = "12",
number = "3",
pages = "234-239",
doi = "10.5301/jabfm.5000194"
}

Perić, T. O., Marković, D., Radojević, V., Jančić-Heinemann, R., Petrovic, B. B.,& Lamovec, J.. (2014). Influence of pastes containing casein phosphopeptide-amorphous calcium phosphate on surface of demineralized enamel. in Journal of Applied Biomaterials & Functional Materials
Wichtig Editore, Milan., 12(3), 234-239.
https://doi.org/10.5301/jabfm.5000194

Perić TO, Marković D, Radojević V, Jančić-Heinemann R, Petrovic BB, Lamovec J. Influence of pastes containing casein phosphopeptide-amorphous calcium phosphate on surface of demineralized enamel. in Journal of Applied Biomaterials & Functional Materials. 2014;12(3):234-239.
doi:10.5301/jabfm.5000194 .

Perić, Tamara O., Marković, Dejan, Radojević, Vesna, Jančić-Heinemann, Radmila, Petrovic, Bojan B, Lamovec, Jelena, "Influence of pastes containing casein phosphopeptide-amorphous calcium phosphate on surface of demineralized enamel" in Journal of Applied Biomaterials & Functional Materials, 12, no. 3 (2014):234-239,
https://doi.org/10.5301/jabfm.5000194 . .