TY  - CONF
AU  - Petrović, Jana
AU  - Radovanović, Željko
AU  - Lazarević, Slavica
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
AU  - Gasik, Michael
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7486
AB  - A great deal of interest is directed towards g-C3N4 (CN) for the photocatalytic reduction of Cr(VI), due to its high stability in acidic conditions and medium band gap (~2,7 eV), but its practical application is limited because of the high recombination rate of electrons and holes. Sulfuric acid treatment is considered as one of the methods for optimizing properties of CN by certain surface and possibly structure modifications which would lead to an increased specific surface area (Sp) and more active sites, anchoring electronegative groups to enhance charge separation, exfoliated bulk CN into the nanosheets, etc. The aim of this research was to investigate the influence of H2SO4 concentration and other experimental conditions (temperature and time) on physicochemical properties and photocatalytic efficiency of CN.
PB  - Savez hemijskih inženjera Srbije
C3  - Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts
T1  - The effect of sulfuric acid treatment on physicochemical properties of g-C3N4 and its efficiency for photocatalytic reduction of Cr(VI)
IS  - 1S
SP  - 71
VL  - 78
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7486
ER  - 

@conference{
author = "Petrović, Jana and Radovanović, Željko and Lazarević, Slavica and Janaćković, Đorđe and Petrović, Rada and Gasik, Michael",
year = "2024",
abstract = "A great deal of interest is directed towards g-C3N4 (CN) for the photocatalytic reduction of Cr(VI), due to its high stability in acidic conditions and medium band gap (~2,7 eV), but its practical application is limited because of the high recombination rate of electrons and holes. Sulfuric acid treatment is considered as one of the methods for optimizing properties of CN by certain surface and possibly structure modifications which would lead to an increased specific surface area (Sp) and more active sites, anchoring electronegative groups to enhance charge separation, exfoliated bulk CN into the nanosheets, etc. The aim of this research was to investigate the influence of H2SO4 concentration and other experimental conditions (temperature and time) on physicochemical properties and photocatalytic efficiency of CN.",
publisher = "Savez hemijskih inženjera Srbije",
journal = "Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts",
title = "The effect of sulfuric acid treatment on physicochemical properties of g-C3N4 and its efficiency for photocatalytic reduction of Cr(VI)",
number = "1S",
pages = "71",
volume = "78",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7486"
}

Petrović, J., Radovanović, Ž., Lazarević, S., Janaćković, Đ., Petrović, R.,& Gasik, M.. (2024). The effect of sulfuric acid treatment on physicochemical properties of g-C3N4 and its efficiency for photocatalytic reduction of Cr(VI). in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts
Savez hemijskih inženjera Srbije., 78(1S), 71.
https://hdl.handle.net/21.15107/rcub_technorep_7486

Petrović J, Radovanović Ž, Lazarević S, Janaćković Đ, Petrović R, Gasik M. The effect of sulfuric acid treatment on physicochemical properties of g-C3N4 and its efficiency for photocatalytic reduction of Cr(VI). in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts. 2024;78(1S):71.
https://hdl.handle.net/21.15107/rcub_technorep_7486 .

Petrović, Jana, Radovanović, Željko, Lazarević, Slavica, Janaćković, Đorđe, Petrović, Rada, Gasik, Michael, "The effect of sulfuric acid treatment on physicochemical properties of g-C3N4 and its efficiency for photocatalytic reduction of Cr(VI)" in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts, 78, no. 1S (2024):71,
https://hdl.handle.net/21.15107/rcub_technorep_7486 .

TY  - JOUR
AU  - Lazarević, Slavica S.
AU  - Mihajlović-Kostić, Marija T.
AU  - Janković-Častvan, Ivona M.
AU  - Janaćković, Đorđe T.
AU  - Petrović, Rada D.
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7434
AB  - The surfaces of natural (NZ) and zeolite/iron oxyhydroxide composite (ZFe) samples were analysed by means of inverse gas chromatography (IGC) using the adsorption data of organic non-polar and polar probes, in the infinite and finite-dilution regimes, in the temperature range 483-513 K. The dispersive components of the free energy of adsorption, γS, determined by the Gray method, decreased with increasing temperature for both zeolites. The specific interactions were characterised by the specific free adsorption energy change, ΔGaS, the specific enthalpy change of adsorption, ΔHaS, as well as the donor and acceptor interaction parameters (KA, KD) and the basic character of the NZ and ZFe was evidenced. The adsorption isotherms of n-hexane, benzene, chloroform and tetrahydrofuran (THF) were determined under finite surface coverage and used to estimate the specific surface area and the adsorption energy distribution. The adsorption capacity of the ZFe was higher than for NZ for all the investigated adsorbates. The specific surface areas and pore size distributions were also determined using nitrogen adsorption-desorption isotherms, i.e., the BET method. It was observed that the nature of the adsorbate and the properties of the solid surface of the initial and modified samples governed the uptake of adsorbates.
AB  - Применом инверзне гасне хроматографије, испитана су површинска својства природног зеолита (NZ) и композита зеолита и гвожђе-оксихидроксида (ZFe), коришћењем поларних и неполарних проба у условима нулте и коначне прекривености у температурном опсегу 483–513 K. Вредности дисперзивне компоненте слободне енергије адсорпције, γS, одређене методом Греја, опадају са порастом температуре за оба зеолита. Одређивањем промене специфичне слободне енергије адсорпције, ΔGa S, и промене специфичне енталпије адсорпције, ΔHa S, које одговарају кисело/базним интеракцијама на чврстој површини, одређени су и акцепторски и донорски параметри (KА и KD) на основу којих је утврђено да су површине узорака NZ и ZFe базног карактера. На основу добијених адсорпционих изотерми за n-хексан, бензен, хлороформ и тетрахидрофуран, применом инверзне гасне хроматографије у условима коначне прекривености, израчунате су вредности специфичне површине као и расподела адсорпционе енергије. Капацитет адсорпције узорка ZFe је био већи у односу на капацитета узорка NZ, за све испитане адсорбенте. Специфична површина узорака као и расподела величине мезопора одређени су применом адсорпионе/десорпционе изотерме за гасовити азот, односно применом BET методе. Закључено је да су природа адсорбата и површинска својства адсорбената главни фактори који одређују капацитет адсорпције.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - An inverse gas chromatography study of the adsorption of organics on zeolite and zeolite/iron oxyhydroxide composite at the infinite and finite surface coverage
T1  - Примена инверзне гасне хроматографије при нултој и коначној прекривености за испитивање адсорпције органских мoлекула на зеолиту и композиту зеолита и гвожђе-оксихидроксида
EP  - 397
IS  - 3
SP  - 383
VL  - 89
DO  - 10.2298/JSC230908093L
ER  - 

@article{
author = "Lazarević, Slavica S. and Mihajlović-Kostić, Marija T. and Janković-Častvan, Ivona M. and Janaćković, Đorđe T. and Petrović, Rada D.",
year = "2024",
abstract = "The surfaces of natural (NZ) and zeolite/iron oxyhydroxide composite (ZFe) samples were analysed by means of inverse gas chromatography (IGC) using the adsorption data of organic non-polar and polar probes, in the infinite and finite-dilution regimes, in the temperature range 483-513 K. The dispersive components of the free energy of adsorption, γS, determined by the Gray method, decreased with increasing temperature for both zeolites. The specific interactions were characterised by the specific free adsorption energy change, ΔGaS, the specific enthalpy change of adsorption, ΔHaS, as well as the donor and acceptor interaction parameters (KA, KD) and the basic character of the NZ and ZFe was evidenced. The adsorption isotherms of n-hexane, benzene, chloroform and tetrahydrofuran (THF) were determined under finite surface coverage and used to estimate the specific surface area and the adsorption energy distribution. The adsorption capacity of the ZFe was higher than for NZ for all the investigated adsorbates. The specific surface areas and pore size distributions were also determined using nitrogen adsorption-desorption isotherms, i.e., the BET method. It was observed that the nature of the adsorbate and the properties of the solid surface of the initial and modified samples governed the uptake of adsorbates., Применом инверзне гасне хроматографије, испитана су површинска својства природног зеолита (NZ) и композита зеолита и гвожђе-оксихидроксида (ZFe), коришћењем поларних и неполарних проба у условима нулте и коначне прекривености у температурном опсегу 483–513 K. Вредности дисперзивне компоненте слободне енергије адсорпције, γS, одређене методом Греја, опадају са порастом температуре за оба зеолита. Одређивањем промене специфичне слободне енергије адсорпције, ΔGa S, и промене специфичне енталпије адсорпције, ΔHa S, које одговарају кисело/базним интеракцијама на чврстој површини, одређени су и акцепторски и донорски параметри (KА и KD) на основу којих је утврђено да су површине узорака NZ и ZFe базног карактера. На основу добијених адсорпционих изотерми за n-хексан, бензен, хлороформ и тетрахидрофуран, применом инверзне гасне хроматографије у условима коначне прекривености, израчунате су вредности специфичне површине као и расподела адсорпционе енергије. Капацитет адсорпције узорка ZFe је био већи у односу на капацитета узорка NZ, за све испитане адсорбенте. Специфична површина узорака као и расподела величине мезопора одређени су применом адсорпионе/десорпционе изотерме за гасовити азот, односно применом BET методе. Закључено је да су природа адсорбата и површинска својства адсорбената главни фактори који одређују капацитет адсорпције.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "An inverse gas chromatography study of the adsorption of organics on zeolite and zeolite/iron oxyhydroxide composite at the infinite and finite surface coverage, Примена инверзне гасне хроматографије при нултој и коначној прекривености за испитивање адсорпције органских мoлекула на зеолиту и композиту зеолита и гвожђе-оксихидроксида",
pages = "397-383",
number = "3",
volume = "89",
doi = "10.2298/JSC230908093L"
}

Lazarević, S. S., Mihajlović-Kostić, M. T., Janković-Častvan, I. M., Janaćković, Đ. T.,& Petrović, R. D.. (2024). An inverse gas chromatography study of the adsorption of organics on zeolite and zeolite/iron oxyhydroxide composite at the infinite and finite surface coverage. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 89(3), 383-397.
https://doi.org/10.2298/JSC230908093L

Lazarević SS, Mihajlović-Kostić MT, Janković-Častvan IM, Janaćković ĐT, Petrović RD. An inverse gas chromatography study of the adsorption of organics on zeolite and zeolite/iron oxyhydroxide composite at the infinite and finite surface coverage. in Journal of the Serbian Chemical Society. 2024;89(3):383-397.
doi:10.2298/JSC230908093L .

Lazarević, Slavica S., Mihajlović-Kostić, Marija T., Janković-Častvan, Ivona M., Janaćković, Đorđe T., Petrović, Rada D., "An inverse gas chromatography study of the adsorption of organics on zeolite and zeolite/iron oxyhydroxide composite at the infinite and finite surface coverage" in Journal of the Serbian Chemical Society, 89, no. 3 (2024):383-397,
https://doi.org/10.2298/JSC230908093L . .

TY  - CONF
AU  - Veljović, Đorđe
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
AU  - Radovanović, Željko
AU  - Ugrinović, Vukašin
AU  - Matić, Tamara
AU  - Milivojević, Marija
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7439
AB  - Bioactive  materials  for  the repairand  regeneration  of human bone  tissue,  as  well  as  for  the restoration  of  teeth,  are  the focus of  numerous  studies  in  the  field  of  biomaterials.Orthopaedic  surgeons  anticipate that  bioactive materialshave  the  potential  to  facilitate  the  formation  of  new  apatite-like  crystals  upon  contact  with body fluids, promoting the development of new bone tissue under in vivoconditions. On the other hand, dentists expect that bioactive  materials  have  the  potential  for  remineralization  of  partially  demineralized  enamel  and  dentin. In  the preceding years, the Bioceramic Materials Group, founded within the Department of Inorganic Chemical Technology at the  Faculty  of  Technology  and  Metallurgy,  University  of  Belgrade (FTM-UB),  conducted  extensive  research  on  the advancement of bioactive and biocompatible materials with adequate mechanical properties, designed for applicationin dentistry, orthopaedics, maxillofacial surgery, and also bone tissue engineering(BTE).
PB  - Savez hemijskih inženjera Srbije
C3  - Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts
T1  - The current trend in innovative bioactive materials for dental and orthopedic applications
IS  - 1S
SP  - 37
VL  - 78
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7439
ER  - 

@conference{
author = "Veljović, Đorđe and Janaćković, Đorđe and Petrović, Rada and Radovanović, Željko and Ugrinović, Vukašin and Matić, Tamara and Milivojević, Marija",
year = "2024",
abstract = "Bioactive  materials  for  the repairand  regeneration  of human bone  tissue,  as  well  as  for  the restoration  of  teeth,  are  the focus of  numerous  studies  in  the  field  of  biomaterials.Orthopaedic  surgeons  anticipate that  bioactive materialshave  the  potential  to  facilitate  the  formation  of  new  apatite-like  crystals  upon  contact  with body fluids, promoting the development of new bone tissue under in vivoconditions. On the other hand, dentists expect that bioactive  materials  have  the  potential  for  remineralization  of  partially  demineralized  enamel  and  dentin. In  the preceding years, the Bioceramic Materials Group, founded within the Department of Inorganic Chemical Technology at the  Faculty  of  Technology  and  Metallurgy,  University  of  Belgrade (FTM-UB),  conducted  extensive  research  on  the advancement of bioactive and biocompatible materials with adequate mechanical properties, designed for applicationin dentistry, orthopaedics, maxillofacial surgery, and also bone tissue engineering(BTE).",
publisher = "Savez hemijskih inženjera Srbije",
journal = "Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts",
title = "The current trend in innovative bioactive materials for dental and orthopedic applications",
number = "1S",
pages = "37",
volume = "78",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7439"
}

Veljović, Đ., Janaćković, Đ., Petrović, R., Radovanović, Ž., Ugrinović, V., Matić, T.,& Milivojević, M.. (2024). The current trend in innovative bioactive materials for dental and orthopedic applications. in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts
Savez hemijskih inženjera Srbije., 78(1S), 37.
https://hdl.handle.net/21.15107/rcub_technorep_7439

Veljović Đ, Janaćković Đ, Petrović R, Radovanović Ž, Ugrinović V, Matić T, Milivojević M. The current trend in innovative bioactive materials for dental and orthopedic applications. in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts. 2024;78(1S):37.
https://hdl.handle.net/21.15107/rcub_technorep_7439 .

Veljović, Đorđe, Janaćković, Đorđe, Petrović, Rada, Radovanović, Željko, Ugrinović, Vukašin, Matić, Tamara, Milivojević, Marija, "The current trend in innovative bioactive materials for dental and orthopedic applications" in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts, 78, no. 1S (2024):37,
https://hdl.handle.net/21.15107/rcub_technorep_7439 .

TY  - CONF
AU  - Lazarević, Slavica
AU  - Janković-Častvan, Ivona
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7488
PB  - Belgrade : Institut za multidisciplinarna istraživanja
C3  - Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia
T1  - Sepiolite-based nanomaterials: structure, properties, and applications for the removal of pollutants from water solutions
SP  - 49
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7488
ER  - 

@conference{
author = "Lazarević, Slavica and Janković-Častvan, Ivona and Janaćković, Đorđe and Petrović, Rada",
year = "2023",
publisher = "Belgrade : Institut za multidisciplinarna istraživanja",
journal = "Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia",
title = "Sepiolite-based nanomaterials: structure, properties, and applications for the removal of pollutants from water solutions",
pages = "49",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7488"
}

Lazarević, S., Janković-Častvan, I., Janaćković, Đ.,& Petrović, R.. (2023). Sepiolite-based nanomaterials: structure, properties, and applications for the removal of pollutants from water solutions. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia
Belgrade : Institut za multidisciplinarna istraživanja., 49.
https://hdl.handle.net/21.15107/rcub_technorep_7488

Lazarević S, Janković-Častvan I, Janaćković Đ, Petrović R. Sepiolite-based nanomaterials: structure, properties, and applications for the removal of pollutants from water solutions. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia. 2023;:49.
https://hdl.handle.net/21.15107/rcub_technorep_7488 .

Lazarević, Slavica, Janković-Častvan, Ivona, Janaćković, Đorđe, Petrović, Rada, "Sepiolite-based nanomaterials: structure, properties, and applications for the removal of pollutants from water solutions" in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia (2023):49,
https://hdl.handle.net/21.15107/rcub_technorep_7488 .

TY  - CONF
AU  - Milovanović, Željka
AU  - Lazarević, Slavica
AU  - Janković-Častvan, Ivona
AU  - Radovanović, Željko
AU  - Cvetković, Slobodan
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7487
AB  - The sepiolite/ZrO2 composites were prepared in toluene using sepiolite and zirconium propoxide by two different procedures. The efficiency of the obtained adsorbents for the removal of phosphate from water solutions was investigated. X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), energy dispersive analysis (EDS). Fourier transform infrared (FTIR) spectroscopy, DTA/TG thermal analyses, specific surface area determination and determination of the point of zero charge were used to characterize the obtained composites, Sep-Zrl and Sep-ZrII. The results indicate that ZrO, in the form of fine nanoparticles was successfully loaded onto the surface of sepiolite fibers. Adsorption kinetics and equilibrium isotherms were investigated to establish the adsorption rates, maximum capacities and possible mechanisms of the adsorption of phosphate from water onto Sep-Zrl and Sep-Zrll composites at a pH of 4. The adsorption kinetics and isotherm follow the pseudo second-order equation and Freundlich adsorption model, respectively.
PB  - Belgrade : Institut za multidisciplinarna istraživanja
C3  - Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia
T1  - Preparation and characterization of sepiolite/ZrO2 composites for phosphate removal from aqueous solutions
SP  - 105
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7487
ER  - 

@conference{
author = "Milovanović, Željka and Lazarević, Slavica and Janković-Častvan, Ivona and Radovanović, Željko and Cvetković, Slobodan and Janaćković, Đorđe and Petrović, Rada",
year = "2023",
abstract = "The sepiolite/ZrO2 composites were prepared in toluene using sepiolite and zirconium propoxide by two different procedures. The efficiency of the obtained adsorbents for the removal of phosphate from water solutions was investigated. X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), energy dispersive analysis (EDS). Fourier transform infrared (FTIR) spectroscopy, DTA/TG thermal analyses, specific surface area determination and determination of the point of zero charge were used to characterize the obtained composites, Sep-Zrl and Sep-ZrII. The results indicate that ZrO, in the form of fine nanoparticles was successfully loaded onto the surface of sepiolite fibers. Adsorption kinetics and equilibrium isotherms were investigated to establish the adsorption rates, maximum capacities and possible mechanisms of the adsorption of phosphate from water onto Sep-Zrl and Sep-Zrll composites at a pH of 4. The adsorption kinetics and isotherm follow the pseudo second-order equation and Freundlich adsorption model, respectively.",
publisher = "Belgrade : Institut za multidisciplinarna istraživanja",
journal = "Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia",
title = "Preparation and characterization of sepiolite/ZrO2 composites for phosphate removal from aqueous solutions",
pages = "105",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7487"
}

Milovanović, Ž., Lazarević, S., Janković-Častvan, I., Radovanović, Ž., Cvetković, S., Janaćković, Đ.,& Petrović, R.. (2023). Preparation and characterization of sepiolite/ZrO2 composites for phosphate removal from aqueous solutions. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia
Belgrade : Institut za multidisciplinarna istraživanja., 105.
https://hdl.handle.net/21.15107/rcub_technorep_7487

Milovanović Ž, Lazarević S, Janković-Častvan I, Radovanović Ž, Cvetković S, Janaćković Đ, Petrović R. Preparation and characterization of sepiolite/ZrO2 composites for phosphate removal from aqueous solutions. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia. 2023;:105.
https://hdl.handle.net/21.15107/rcub_technorep_7487 .

Milovanović, Željka, Lazarević, Slavica, Janković-Častvan, Ivona, Radovanović, Željko, Cvetković, Slobodan, Janaćković, Đorđe, Petrović, Rada, "Preparation and characterization of sepiolite/ZrO2 composites for phosphate removal from aqueous solutions" in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia (2023):105,
https://hdl.handle.net/21.15107/rcub_technorep_7487 .

TY  - CONF
AU  - Petrović, Jana
AU  - Radovanović, Željko
AU  - Lazarević, Slavica
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7481
AB  - Great attention is directed towards potential visible light photocatalyst, g-C3N4, due to its simple preparation, high stability, low cost and medium band gap (-2,7 eV)

[1]. However, its practical application is limited, mostly because of the high recombination rate of electrons and holes. One of the methods for optimizing g-C3N4 properties is the chemical exfoliation with concentrated acid. It was reported that treating g-C,N4 with sulfuric acid leads to certain surface and structure modifications, which would further enhance the surface functionality and provide better dispersion of metal/semiconductor nanoparticles when forming heterojunction [l] Different researches showed that chemical etching, i.e. exfoliating bulk g-C,N, to obtain nanosheets with concentrated H.SO, could increase the specific surface area, obtain more active sites and convert surface charge. Furthermore, introducing the electron-withdrawing groups at the edge of g-C;N, nanosheets by using oxidizing agent can boost electron migration and enhance the charge separation, but also expand its band gap [2].

In this work, concentrated H2O4 was used to exfoliate bulk g-C,N, and produce g-C,Na nanosheets (sample E-C3N4) and the improved Hummer's method [2] was used for synthesis of oxygen functionalized g-C,N4 (sample EO-C,N4).

The properties of the photocatalysts were studied by FESEM, FTIR, XRD, BET, PL and DRS analysis, as well as by determination of the point of zero charge (pHpzc) and the number of acidic and basic surface functional groups. Photocatalytic reduction of

Cr(VI) was tested at a constant solution concentration (10 mg/l), at pH = 3, under the
simulated visible irradiation and in the presence of citric acid as a hole scavenger. It was determited that acid treatment led to the decreasing in the specific surface area, lowering the pHeze, slightly increased bandgap energy but also enhanced photocatalytic efficiency and the number of surface functional groups.
PB  - Novi Sad : Faculty of Technology
C3  - Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad, Serbia
T1  - Acid treated g-C3N4 photocatalysts for the photocatalytic reduction of Cr(VI)
SP  - 89
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7481
ER  - 

@conference{
author = "Petrović, Jana and Radovanović, Željko and Lazarević, Slavica and Janaćković, Đorđe and Petrović, Rada",
year = "2023",
abstract = "Great attention is directed towards potential visible light photocatalyst, g-C3N4, due to its simple preparation, high stability, low cost and medium band gap (-2,7 eV)

[1]. However, its practical application is limited, mostly because of the high recombination rate of electrons and holes. One of the methods for optimizing g-C3N4 properties is the chemical exfoliation with concentrated acid. It was reported that treating g-C,N4 with sulfuric acid leads to certain surface and structure modifications, which would further enhance the surface functionality and provide better dispersion of metal/semiconductor nanoparticles when forming heterojunction [l] Different researches showed that chemical etching, i.e. exfoliating bulk g-C,N, to obtain nanosheets with concentrated H.SO, could increase the specific surface area, obtain more active sites and convert surface charge. Furthermore, introducing the electron-withdrawing groups at the edge of g-C;N, nanosheets by using oxidizing agent can boost electron migration and enhance the charge separation, but also expand its band gap [2].

In this work, concentrated H2O4 was used to exfoliate bulk g-C,N, and produce g-C,Na nanosheets (sample E-C3N4) and the improved Hummer's method [2] was used for synthesis of oxygen functionalized g-C,N4 (sample EO-C,N4).

The properties of the photocatalysts were studied by FESEM, FTIR, XRD, BET, PL and DRS analysis, as well as by determination of the point of zero charge (pHpzc) and the number of acidic and basic surface functional groups. Photocatalytic reduction of

Cr(VI) was tested at a constant solution concentration (10 mg/l), at pH = 3, under the
simulated visible irradiation and in the presence of citric acid as a hole scavenger. It was determited that acid treatment led to the decreasing in the specific surface area, lowering the pHeze, slightly increased bandgap energy but also enhanced photocatalytic efficiency and the number of surface functional groups.",
publisher = "Novi Sad : Faculty of Technology",
journal = "Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad, Serbia",
title = "Acid treated g-C3N4 photocatalysts for the photocatalytic reduction of Cr(VI)",
pages = "89",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7481"
}

Petrović, J., Radovanović, Ž., Lazarević, S., Janaćković, Đ.,& Petrović, R.. (2023). Acid treated g-C3N4 photocatalysts for the photocatalytic reduction of Cr(VI). in Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad, Serbia
Novi Sad : Faculty of Technology., 89.
https://hdl.handle.net/21.15107/rcub_technorep_7481

Petrović J, Radovanović Ž, Lazarević S, Janaćković Đ, Petrović R. Acid treated g-C3N4 photocatalysts for the photocatalytic reduction of Cr(VI). in Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad, Serbia. 2023;:89.
https://hdl.handle.net/21.15107/rcub_technorep_7481 .

Petrović, Jana, Radovanović, Željko, Lazarević, Slavica, Janaćković, Đorđe, Petrović, Rada, "Acid treated g-C3N4 photocatalysts for the photocatalytic reduction of Cr(VI)" in Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad, Serbia (2023):89,
https://hdl.handle.net/21.15107/rcub_technorep_7481 .

TY  - CONF
AU  - Petrović, Jana
AU  - Radovanović, Željko
AU  - Janaćković, Đorđe
AU  - Lazarević, Slavica
AU  - Petrović, Rada
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7482
AB  - A potential visible light photocatalyst, g-C3N4, has attracted great attention due to its simple
preparation, high stability, low cost and medium band gap (~2,7 eV) [1]. Nevertheless, mostly
high recombination rate of electrons and holes limits its practical application. One of the methods
for optimizing g-C3N4 properties is the acid treatment. It was reported that treating g-C3N4 with
sulfuric acid leads to certain surface and possibly structure modifications, which would further
enhance the surface functionality and provide better dispersion of metal/semiconductor
nanoparticles when forming heterojunction [1]. Different researches showed that treating g-C3N4with H2SO4 could increase the specific surface area, obtain more active sites, convert surface
charge, anchor the -HSO3 electronegative groups to boost electron migration and enhance the
charge separation, exfoliate bulk g-C3N4 into the nanosheets, but also expand its band gap. In this
work, g-C3N4 was modified with H2SO4, by adjusting acid/C3N4 ratio and other experimental
conditions in order to produce protonated (P-C3N4) [2], sulfated (S-C3N4) [1] and exfoliated (EC3N4) g-C3N4 [3]. The properties of the photocatalysts were studied by FESEM, FTIR, BET and
DRS analysis, as well as by determination of the point of zero charge (pHPZC) and the number of
acidic and basic surface functional groups. Photocatalytic reduction of Cr(VI) was tested at a
constant solution concentration (10 mg/l), at pH 3, under the simulated visible irradiation and in
the presence of citric acid as a hole scavenger. It was determited that acid treatment led to the
decreasing in the specific surface area, lowering the pHPZC, slightly increased bandgap energy but
also enhanced photocatalytic efficiency and the number of surface functional groups.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023
T1  - Enhancement of g-C3N4 with sulfuric acid treatment for photocatalytic reduction of Cr(VI)
SP  - 159
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7482
ER  - 

@conference{
author = "Petrović, Jana and Radovanović, Željko and Janaćković, Đorđe and Lazarević, Slavica and Petrović, Rada",
year = "2023",
abstract = "A potential visible light photocatalyst, g-C3N4, has attracted great attention due to its simple
preparation, high stability, low cost and medium band gap (~2,7 eV) [1]. Nevertheless, mostly
high recombination rate of electrons and holes limits its practical application. One of the methods
for optimizing g-C3N4 properties is the acid treatment. It was reported that treating g-C3N4 with
sulfuric acid leads to certain surface and possibly structure modifications, which would further
enhance the surface functionality and provide better dispersion of metal/semiconductor
nanoparticles when forming heterojunction [1]. Different researches showed that treating g-C3N4with H2SO4 could increase the specific surface area, obtain more active sites, convert surface
charge, anchor the -HSO3 electronegative groups to boost electron migration and enhance the
charge separation, exfoliate bulk g-C3N4 into the nanosheets, but also expand its band gap. In this
work, g-C3N4 was modified with H2SO4, by adjusting acid/C3N4 ratio and other experimental
conditions in order to produce protonated (P-C3N4) [2], sulfated (S-C3N4) [1] and exfoliated (EC3N4) g-C3N4 [3]. The properties of the photocatalysts were studied by FESEM, FTIR, BET and
DRS analysis, as well as by determination of the point of zero charge (pHPZC) and the number of
acidic and basic surface functional groups. Photocatalytic reduction of Cr(VI) was tested at a
constant solution concentration (10 mg/l), at pH 3, under the simulated visible irradiation and in
the presence of citric acid as a hole scavenger. It was determited that acid treatment led to the
decreasing in the specific surface area, lowering the pHPZC, slightly increased bandgap energy but
also enhanced photocatalytic efficiency and the number of surface functional groups.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023",
title = "Enhancement of g-C3N4 with sulfuric acid treatment for photocatalytic reduction of Cr(VI)",
pages = "159",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7482"
}

Petrović, J., Radovanović, Ž., Janaćković, Đ., Lazarević, S.,& Petrović, R.. (2023). Enhancement of g-C3N4 with sulfuric acid treatment for photocatalytic reduction of Cr(VI). in Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023
Belgrade : Materials Research Society of Serbia., 159.
https://hdl.handle.net/21.15107/rcub_technorep_7482

Petrović J, Radovanović Ž, Janaćković Đ, Lazarević S, Petrović R. Enhancement of g-C3N4 with sulfuric acid treatment for photocatalytic reduction of Cr(VI). in Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023. 2023;:159.
https://hdl.handle.net/21.15107/rcub_technorep_7482 .

Petrović, Jana, Radovanović, Željko, Janaćković, Đorđe, Lazarević, Slavica, Petrović, Rada, "Enhancement of g-C3N4 with sulfuric acid treatment for photocatalytic reduction of Cr(VI)" in Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023 (2023):159,
https://hdl.handle.net/21.15107/rcub_technorep_7482 .

TY  - JOUR
AU  - Petrović, Rada
AU  - Lazarević, Slavica
AU  - Janković-Častvan, Ivona
AU  - Matić, Tamara
AU  - Milivojević, Marko
AU  - Milošević, Dragana
AU  - Veljović, Đorđe
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5263
AB  - Kaolinite/illite (KUb) and sepiolite (SEP) clays were used to study Cr(III) adsorption removal from aqueous solutions so that they could be utilized after saturation for ceramic manufacturing. SEP had a larger specific surface area and a higher PZC than KUb. The removal of Cr(III) was evaluated using a batch equilibration procedure at pHi = 4 and pHi = 6. Fast removal kinetics were observed for both clays. Maximum removal capacity was determined by changing the concentration of Cr(III) while keeping the concentration of clay constant and by altering the amount of clay while keeping the concentration of Cr(III) constant. In all situations, SEP had greater capacity than KUb, and capacity was greater for both clays at higher pHi. Not only did the pHi impact the removal capacity and efficiency, but so did the pH during adsorption and the initial concentration of Cr(III). Because of the higher PZC, the pHf for SEP was higher for the same pHi. The higher the pH and Cr(III) concentration, the higher the probability of Cr(OH)3 precipitation and the higher the removal capacity. Dried saturated clays were uniaxially pressed and sintered at 1000 °C for 2 h. The densities of the sintered materials were nearly identical to those of pure clay-based materials, but the compressive strengths were higher, which is significant for the use of saturated clays as raw materials in ceramic manufacturing. Leaching of Cr from SEP-based material was significantly higher than from KUb-based material probably due to the presence of CaCO3 in the SEP.
PB  - Elsevier
T2  - Applied  Clay Sciences
T1  - Removal of trivalent chromium from aqueous solutions by natural clays: Valorization of saturated adsorbents as raw materials in ceramic manufacturing
SP  - 106747
VL  - 231
DO  - 10.1016/j.clay.2022.106747
ER  - 

@article{
author = "Petrović, Rada and Lazarević, Slavica and Janković-Častvan, Ivona and Matić, Tamara and Milivojević, Marko and Milošević, Dragana and Veljović, Đorđe",
year = "2023",
abstract = "Kaolinite/illite (KUb) and sepiolite (SEP) clays were used to study Cr(III) adsorption removal from aqueous solutions so that they could be utilized after saturation for ceramic manufacturing. SEP had a larger specific surface area and a higher PZC than KUb. The removal of Cr(III) was evaluated using a batch equilibration procedure at pHi = 4 and pHi = 6. Fast removal kinetics were observed for both clays. Maximum removal capacity was determined by changing the concentration of Cr(III) while keeping the concentration of clay constant and by altering the amount of clay while keeping the concentration of Cr(III) constant. In all situations, SEP had greater capacity than KUb, and capacity was greater for both clays at higher pHi. Not only did the pHi impact the removal capacity and efficiency, but so did the pH during adsorption and the initial concentration of Cr(III). Because of the higher PZC, the pHf for SEP was higher for the same pHi. The higher the pH and Cr(III) concentration, the higher the probability of Cr(OH)3 precipitation and the higher the removal capacity. Dried saturated clays were uniaxially pressed and sintered at 1000 °C for 2 h. The densities of the sintered materials were nearly identical to those of pure clay-based materials, but the compressive strengths were higher, which is significant for the use of saturated clays as raw materials in ceramic manufacturing. Leaching of Cr from SEP-based material was significantly higher than from KUb-based material probably due to the presence of CaCO3 in the SEP.",
publisher = "Elsevier",
journal = "Applied  Clay Sciences",
title = "Removal of trivalent chromium from aqueous solutions by natural clays: Valorization of saturated adsorbents as raw materials in ceramic manufacturing",
pages = "106747",
volume = "231",
doi = "10.1016/j.clay.2022.106747"
}

Petrović, R., Lazarević, S., Janković-Častvan, I., Matić, T., Milivojević, M., Milošević, D.,& Veljović, Đ.. (2023). Removal of trivalent chromium from aqueous solutions by natural clays: Valorization of saturated adsorbents as raw materials in ceramic manufacturing. in Applied  Clay Sciences
Elsevier., 231, 106747.
https://doi.org/10.1016/j.clay.2022.106747

Petrović R, Lazarević S, Janković-Častvan I, Matić T, Milivojević M, Milošević D, Veljović Đ. Removal of trivalent chromium from aqueous solutions by natural clays: Valorization of saturated adsorbents as raw materials in ceramic manufacturing. in Applied  Clay Sciences. 2023;231:106747.
doi:10.1016/j.clay.2022.106747 .

Petrović, Rada, Lazarević, Slavica, Janković-Častvan, Ivona, Matić, Tamara, Milivojević, Marko, Milošević, Dragana, Veljović, Đorđe, "Removal of trivalent chromium from aqueous solutions by natural clays: Valorization of saturated adsorbents as raw materials in ceramic manufacturing" in Applied  Clay Sciences, 231 (2023):106747,
https://doi.org/10.1016/j.clay.2022.106747 . .

TY  - JOUR
AU  - Rakić, Jelena M.
AU  - Petrović, Rada D.
AU  - Radojević, Vesna J.
AU  - Baščarević, Zvezdana D.
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6458
AB  - Effects of Na2SO4, Na2CO3, and Na2SiO3 on setting time, compressive strength (up to 90 days), and hydration mechanism of binders with high volume (70 wt%, HVFA binders) of fly ash (FA) were investigated. Before chemical activation, FA was mechanically activated. Effects of the activators on hydration process were examined by isothermal calorimetry, X-ray diffraction and thermogravimetric analyses, and scanning electron microscopy. Pore solution analyses were also performed. It was found that, with addition of the chemical activators, Portland cement (PC) hydration was accelerated and the pozzolanic reaction started earlier, which resulted in shortening of setting time and increase in early compressive strength of the HVFA binders. Combination of mechanical activation of FA and the chemical activation by sodium silicate proved to be the best choice for synthesis of HVFA binder with good physicomechanical properties.
PB  - Elsevier Ltd.
T2  - Construction and Building Materials
T1  - Effects of selected inorganic chemical activators on properties and hydration mechanism of high volume fly ash (HVFA) binders
SP  - 131833
VL  - 391
DO  - 10.1016/j.conbuildmat.2023.131833
ER  - 

@article{
author = "Rakić, Jelena M. and Petrović, Rada D. and Radojević, Vesna J. and Baščarević, Zvezdana D.",
year = "2023",
abstract = "Effects of Na2SO4, Na2CO3, and Na2SiO3 on setting time, compressive strength (up to 90 days), and hydration mechanism of binders with high volume (70 wt%, HVFA binders) of fly ash (FA) were investigated. Before chemical activation, FA was mechanically activated. Effects of the activators on hydration process were examined by isothermal calorimetry, X-ray diffraction and thermogravimetric analyses, and scanning electron microscopy. Pore solution analyses were also performed. It was found that, with addition of the chemical activators, Portland cement (PC) hydration was accelerated and the pozzolanic reaction started earlier, which resulted in shortening of setting time and increase in early compressive strength of the HVFA binders. Combination of mechanical activation of FA and the chemical activation by sodium silicate proved to be the best choice for synthesis of HVFA binder with good physicomechanical properties.",
publisher = "Elsevier Ltd.",
journal = "Construction and Building Materials",
title = "Effects of selected inorganic chemical activators on properties and hydration mechanism of high volume fly ash (HVFA) binders",
pages = "131833",
volume = "391",
doi = "10.1016/j.conbuildmat.2023.131833"
}

Rakić, J. M., Petrović, R. D., Radojević, V. J.,& Baščarević, Z. D.. (2023). Effects of selected inorganic chemical activators on properties and hydration mechanism of high volume fly ash (HVFA) binders. in Construction and Building Materials
Elsevier Ltd.., 391, 131833.
https://doi.org/10.1016/j.conbuildmat.2023.131833

Rakić JM, Petrović RD, Radojević VJ, Baščarević ZD. Effects of selected inorganic chemical activators on properties and hydration mechanism of high volume fly ash (HVFA) binders. in Construction and Building Materials. 2023;391:131833.
doi:10.1016/j.conbuildmat.2023.131833 .

Rakić, Jelena M., Petrović, Rada D., Radojević, Vesna J., Baščarević, Zvezdana D., "Effects of selected inorganic chemical activators on properties and hydration mechanism of high volume fly ash (HVFA) binders" in Construction and Building Materials, 391 (2023):131833,
https://doi.org/10.1016/j.conbuildmat.2023.131833 . .

TY  - JOUR
AU  - Milovanović, Željka
AU  - Lazarević, Slavica
AU  - Janković-Častvan, Ivona
AU  - Radovanović, Željko
AU  - Cvetković, Slobodan
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6578
AB  - The sepiolite/ZrO2 composites were prepared by sepiolite (Sep) modification with zirconium propoxide in toluene at room temperature for 24 h (Sep–ZrI) or 95 °C for 4 h (sample Sep–ZrII). The efficiency of the obtained composites for the removal of phosphate from aqueous solutions at initial pH = 4 and pH = 8 was investigated. Characterization of the samples shows that synthesis at a higher temperature for a shorter time provides a slightly higher content of amorphous Zr phase, which is deposited on the sepiolite fibers as a thin layer and agglomerated nanoparticles. Compared to Sep, the composites have a lower point of zero charge and higher specific surface area and pore volume. The adsorption kinetics follow the pseudo second-order model. The adsorption capacities of the composites are approximately the same at both initial pH and higher at initial pH = 4 than at pH = 8. The XPS and ATR-FTIR of Sep–ZrI before and after adsorption identifies the formation of inner-sphere complexes as the mechanism of phosphate adsorption. The slow release during desorption with NaOH solution confirms the strong bonds of the phosphates with the surface of the composites.
PB  - MDPI
T2  - Water
T1  - The Removal of Phosphate from Aqueous Solutions by Sepiolite/ZrO2 Composites: Adsorption Behavior and Mechanism
IS  - 13
SP  - 2376
VL  - 15
DO  - 10.3390/w15132376
ER  - 

@article{
author = "Milovanović, Željka and Lazarević, Slavica and Janković-Častvan, Ivona and Radovanović, Željko and Cvetković, Slobodan and Janaćković, Đorđe and Petrović, Rada",
year = "2023",
abstract = "The sepiolite/ZrO2 composites were prepared by sepiolite (Sep) modification with zirconium propoxide in toluene at room temperature for 24 h (Sep–ZrI) or 95 °C for 4 h (sample Sep–ZrII). The efficiency of the obtained composites for the removal of phosphate from aqueous solutions at initial pH = 4 and pH = 8 was investigated. Characterization of the samples shows that synthesis at a higher temperature for a shorter time provides a slightly higher content of amorphous Zr phase, which is deposited on the sepiolite fibers as a thin layer and agglomerated nanoparticles. Compared to Sep, the composites have a lower point of zero charge and higher specific surface area and pore volume. The adsorption kinetics follow the pseudo second-order model. The adsorption capacities of the composites are approximately the same at both initial pH and higher at initial pH = 4 than at pH = 8. The XPS and ATR-FTIR of Sep–ZrI before and after adsorption identifies the formation of inner-sphere complexes as the mechanism of phosphate adsorption. The slow release during desorption with NaOH solution confirms the strong bonds of the phosphates with the surface of the composites.",
publisher = "MDPI",
journal = "Water",
title = "The Removal of Phosphate from Aqueous Solutions by Sepiolite/ZrO2 Composites: Adsorption Behavior and Mechanism",
number = "13",
pages = "2376",
volume = "15",
doi = "10.3390/w15132376"
}

Milovanović, Ž., Lazarević, S., Janković-Častvan, I., Radovanović, Ž., Cvetković, S., Janaćković, Đ.,& Petrović, R.. (2023). The Removal of Phosphate from Aqueous Solutions by Sepiolite/ZrO2 Composites: Adsorption Behavior and Mechanism. in Water
MDPI., 15(13), 2376.
https://doi.org/10.3390/w15132376

Milovanović Ž, Lazarević S, Janković-Častvan I, Radovanović Ž, Cvetković S, Janaćković Đ, Petrović R. The Removal of Phosphate from Aqueous Solutions by Sepiolite/ZrO2 Composites: Adsorption Behavior and Mechanism. in Water. 2023;15(13):2376.
doi:10.3390/w15132376 .

Milovanović, Željka, Lazarević, Slavica, Janković-Častvan, Ivona, Radovanović, Željko, Cvetković, Slobodan, Janaćković, Đorđe, Petrović, Rada, "The Removal of Phosphate from Aqueous Solutions by Sepiolite/ZrO2 Composites: Adsorption Behavior and Mechanism" in Water, 15, no. 13 (2023):2376,
https://doi.org/10.3390/w15132376 . .

TY  - CONF
AU  - Stefanović, Milica
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6739
AB  - The development of metal oxide-based electron transport layers in perovskite solar cells (PSCs) is being intensively researched to achieve highly efficient PSCs. They offer the advantage of higher charge carrier mobility and stability compared to typical organic materials. To reduce the recombination of charge carriers, methylammonium lead bromide (MAPbBr3) perovskite was coupled with vertically aligned TiO2 nanorods (NRs) as an electron transport layer in this study. The TiO2 NRs were grown on commercial FTO glass in hydrothermal conditions. Titanium (IV) isopropoxide (TTIP) was added in drops, slowly, in the diluted solution of HCl. The obtained precursor solution was transferred into a Teflon-lined stainless steel autoclave which contained FTO substrates and heated at 150 °C for 2 h. Then, the substrates were cleaned using DI water and ethanol and annealed at 500 °C for 30 min. The solution of MAPbBr3 in dimethylformamide (DMF) was deposited on TiO2 NRs by spin coating technique. FESEM results showed that TiO2 NRs were porous and oriented vertically upwards to the substrate and that the perovskite material filled the space between TiO2 NRs. Diffuse reflectance spectroscopy measurement of the sample proved that the absorption edge of the prepared TiO2 NRs/MAPbBr3 was extended into the visible range. By measuring the I-V characteristics of the sample in the dark and under visible light, a hysteresis curve was obtained. Prepared TiO2 NRs/MAPbBr3 photodiode will be the basis for the construction of solar cells.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023
T1  - Vertically aligned TiO2 nanorod array as an electron transport layer in perovskite photodiode
EP  - 73
SP  - 72
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6739
ER  - 

@conference{
author = "Stefanović, Milica and Petrović, Rada and Janaćković, Đorđe",
year = "2023",
abstract = "The development of metal oxide-based electron transport layers in perovskite solar cells (PSCs) is being intensively researched to achieve highly efficient PSCs. They offer the advantage of higher charge carrier mobility and stability compared to typical organic materials. To reduce the recombination of charge carriers, methylammonium lead bromide (MAPbBr3) perovskite was coupled with vertically aligned TiO2 nanorods (NRs) as an electron transport layer in this study. The TiO2 NRs were grown on commercial FTO glass in hydrothermal conditions. Titanium (IV) isopropoxide (TTIP) was added in drops, slowly, in the diluted solution of HCl. The obtained precursor solution was transferred into a Teflon-lined stainless steel autoclave which contained FTO substrates and heated at 150 °C for 2 h. Then, the substrates were cleaned using DI water and ethanol and annealed at 500 °C for 30 min. The solution of MAPbBr3 in dimethylformamide (DMF) was deposited on TiO2 NRs by spin coating technique. FESEM results showed that TiO2 NRs were porous and oriented vertically upwards to the substrate and that the perovskite material filled the space between TiO2 NRs. Diffuse reflectance spectroscopy measurement of the sample proved that the absorption edge of the prepared TiO2 NRs/MAPbBr3 was extended into the visible range. By measuring the I-V characteristics of the sample in the dark and under visible light, a hysteresis curve was obtained. Prepared TiO2 NRs/MAPbBr3 photodiode will be the basis for the construction of solar cells.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023",
title = "Vertically aligned TiO2 nanorod array as an electron transport layer in perovskite photodiode",
pages = "73-72",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6739"
}

Stefanović, M., Petrović, R.,& Janaćković, Đ.. (2023). Vertically aligned TiO2 nanorod array as an electron transport layer in perovskite photodiode. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023
Belgrade : Serbian Ceramic Society., 72-73.
https://hdl.handle.net/21.15107/rcub_technorep_6739

Stefanović M, Petrović R, Janaćković Đ. Vertically aligned TiO2 nanorod array as an electron transport layer in perovskite photodiode. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023. 2023;:72-73.
https://hdl.handle.net/21.15107/rcub_technorep_6739 .

Stefanović, Milica, Petrović, Rada, Janaćković, Đorđe, "Vertically aligned TiO2 nanorod array as an electron transport layer in perovskite photodiode" in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023 (2023):72-73,
https://hdl.handle.net/21.15107/rcub_technorep_6739 .

TY  - JOUR
AU  - Milivojević, Marija
AU  - Chen, Ke
AU  - Radovanović, Željko
AU  - Petrović, Rada
AU  - Dimitrijević-Branković, Suzana
AU  - Kojić, Vesna
AU  - Marković, Danica
AU  - Janaćković, Đorđe
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6803
AB  - The restoration of large bone defects caused by trauma, tumor resection, or infection is a major clinical problem in orthopedics and dentistry because postoperative infections, corrosion, and limited osteointegration of metal implants can lead to loosening of the implant. The aim of this study was to improve the surface properties of a 3D-printed (electron beam melting) Ti6Al4V-based macroporous scaffold by multilayer coating with bioactive silicate glasses (BAGs) and hydroxyapatite doped with a silver (AgHAP) or AgHAP additionally sonochemically modified with ZnO (ZnO-AgHAP). The coated scaffolds AgHAP_BAGs_Ti and ZnO-AgHAP_BAGs_Ti enhanced cytocompatibility in L929 and MRC5 cell lines and expressed bioactivity in simulated body fluid. A lower release of vanadium ions in coated samples compared to bare Ti scaffold indicates decreased dissolution of Ti alloy in coated samples. The coated samples reduced growth ofEscherichia coliandStaphylococcus aureusfor 4-6 orders of magnitude. Therefore, the 3D-printed Ti-based scaffolds coated with BAGs and (ZnO-)AgHAP have great potential for application as a multifunctional implant with antibacterial properties for the restoration of defects in load-bearing bones.
PB  - IOP Publishing
T2  - Biomedical Materials
T1  - Enhanced antimicrobial properties and bioactivity of 3D-printed titanium scaffolds by multilayer bioceramic coating for large bone defects
IS  - 6
SP  - 065020
VL  - 18
DO  - 10.1088/1748-605X/ad02d2
ER  - 

@article{
author = "Milivojević, Marija and Chen, Ke and Radovanović, Željko and Petrović, Rada and Dimitrijević-Branković, Suzana and Kojić, Vesna and Marković, Danica and Janaćković, Đorđe",
year = "2023",
abstract = "The restoration of large bone defects caused by trauma, tumor resection, or infection is a major clinical problem in orthopedics and dentistry because postoperative infections, corrosion, and limited osteointegration of metal implants can lead to loosening of the implant. The aim of this study was to improve the surface properties of a 3D-printed (electron beam melting) Ti6Al4V-based macroporous scaffold by multilayer coating with bioactive silicate glasses (BAGs) and hydroxyapatite doped with a silver (AgHAP) or AgHAP additionally sonochemically modified with ZnO (ZnO-AgHAP). The coated scaffolds AgHAP_BAGs_Ti and ZnO-AgHAP_BAGs_Ti enhanced cytocompatibility in L929 and MRC5 cell lines and expressed bioactivity in simulated body fluid. A lower release of vanadium ions in coated samples compared to bare Ti scaffold indicates decreased dissolution of Ti alloy in coated samples. The coated samples reduced growth ofEscherichia coliandStaphylococcus aureusfor 4-6 orders of magnitude. Therefore, the 3D-printed Ti-based scaffolds coated with BAGs and (ZnO-)AgHAP have great potential for application as a multifunctional implant with antibacterial properties for the restoration of defects in load-bearing bones.",
publisher = "IOP Publishing",
journal = "Biomedical Materials",
title = "Enhanced antimicrobial properties and bioactivity of 3D-printed titanium scaffolds by multilayer bioceramic coating for large bone defects",
number = "6",
pages = "065020",
volume = "18",
doi = "10.1088/1748-605X/ad02d2"
}

Milivojević, M., Chen, K., Radovanović, Ž., Petrović, R., Dimitrijević-Branković, S., Kojić, V., Marković, D.,& Janaćković, Đ.. (2023). Enhanced antimicrobial properties and bioactivity of 3D-printed titanium scaffolds by multilayer bioceramic coating for large bone defects. in Biomedical Materials
IOP Publishing., 18(6), 065020.
https://doi.org/10.1088/1748-605X/ad02d2

Milivojević M, Chen K, Radovanović Ž, Petrović R, Dimitrijević-Branković S, Kojić V, Marković D, Janaćković Đ. Enhanced antimicrobial properties and bioactivity of 3D-printed titanium scaffolds by multilayer bioceramic coating for large bone defects. in Biomedical Materials. 2023;18(6):065020.
doi:10.1088/1748-605X/ad02d2 .

Milivojević, Marija, Chen, Ke, Radovanović, Željko, Petrović, Rada, Dimitrijević-Branković, Suzana, Kojić, Vesna, Marković, Danica, Janaćković, Đorđe, "Enhanced antimicrobial properties and bioactivity of 3D-printed titanium scaffolds by multilayer bioceramic coating for large bone defects" in Biomedical Materials, 18, no. 6 (2023):065020,
https://doi.org/10.1088/1748-605X/ad02d2 . .

Petrović, R., Lazarević, S., Janković-Častvan, I., Matić, T., Milivojević, M., Milošević, D.,& Veljović, Đ.. (2023). Prečišćavanje otpadnih voda koje sadrže trovalentni hrom primenom glinenih minerala i valorizacija zasićenih adsorbenata kao sirovina za dobijanje keramike. 
Univerzitet u Beogradu, Tehnološko-metalurški fakultet..
https://hdl.handle.net/21.15107/rcub_technorep_7477

Petrović R, Lazarević S, Janković-Častvan I, Matić T, Milivojević M, Milošević D, Veljović Đ. Prečišćavanje otpadnih voda koje sadrže trovalentni hrom primenom glinenih minerala i valorizacija zasićenih adsorbenata kao sirovina za dobijanje keramike. 2023;.
https://hdl.handle.net/21.15107/rcub_technorep_7477 .

Petrović, Rada, Lazarević, Slavica, Janković-Častvan, Ivona, Matić, Tamara, Milivojević, Marija, Milošević, Dragana, Veljović, Đorđe, "Prečišćavanje otpadnih voda koje sadrže trovalentni hrom primenom glinenih minerala i valorizacija zasićenih adsorbenata kao sirovina za dobijanje keramike" (2023),
https://hdl.handle.net/21.15107/rcub_technorep_7477 .

TY  - CONF
AU  - Petrović, Jana
AU  - Barać, Nemanja
AU  - Lazarević, Slavica
AU  - Radovanović, Željko
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7485
AB  - Fotokatalizatori za redukciju CrVI sintetisani su deponovanjem nanodestica CdS Vili Cu

na TiOz. Redukcijom Cu'* jona ekstraktom lisca hrasta u prisustvu TiO, sintetisan je Cu-

TiO,,

a Cu-TIO,-CdS reakcijom kadmijum-acetata i tiouree u prisustvu Cu-TiO,.

Redukcija CrVD je ispitivana pod dejstvom simuliranog vidljivog zracenja, na pH-3 i

pH=6. DRS je pokazala da fotokatalizatori apsorbuju u vidljivom delu spektra. Cu-TiO,-CdS pokazuje dve granice apsorpcije, za TiO, i za CdS. Cu-TiO, je imao uzu zabranjenu

zonu u odnosu na TiO, i dodatnu apsorpciju u vidijivoj oblasti. Oba fotokatalizatora, a

posebno Cu-110-Cos, su pokazala znatno vecu efikasnost od cistog 11O≥. Odredivanjem

sadrzaja Cd'* jona u rastvoru i ispitivanjem moguénosti ponovne upotrebe fotokatalizatora,

utureno je da dolazi do korozije Cu-TiO,-CdS pri pH=3. Korozija je znacajno smanjena

pri pH=6, ali je i fotokatalitieka efikasnost bila manja.
AB  - Photocatalysts for the reduction of Cr(VI) were synthesized by depositing CdS and/or Cu nanoparticles on TiO,. Cu-TiO, was synthesized by the reduction of Cu?" ions with oak leaf extract in the presence of TiO,, and Cu-TiO.-CdS by the reaction of cadmium acetate and thiourea in the presence of Cu-TiO,, The reduction of Cr(VI was tested under simulated visible irradiation, at pH-3 or pH-6. DRS has shown that the photocatalysts absorb in the visible part of the spectrum. Cu-TiO,-CdS showed two absorption edges, one for TiO, and the other for CdS. The Cu-TiO, sample had a narrower band gap than TiO, and additional absorption in the visible region. Both photocatalysts, especially Cu-TiO.-CdS" showed significantly higher efficiency than pure TiO,. Based on determining the content of Cd** ions in the solution and examining the possibility of reusing photocatalysts, it was determined that Cu-TiO,-CdS corrosion occurs at pH=3. Corrosion was significantly reduced at pH-6, but the photocatalytic efficiency was also lower.
PB  - Beograd : Srpsko hemijsko društvo = Serbian Chemical Society
C3  - Kratki izvodi radova ; Knjiga radova / 58. savetovanje Srpskog hemijskog društva, Beograd, 9. i 10. jun 2022. godine = Book of Abstracts ; Proceedings = 58th meeting of the Serbian Chemical Society, Belgrade, June 9-10, 2022
T1  - Fotokatalizatori na bazi TiO2 za redukciju Cr(VI)
T1  - Photocatalysts based on TiO2 for the reduction of Cr(VI)
SP  - 106
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7485
ER  - 

@conference{
author = "Petrović, Jana and Barać, Nemanja and Lazarević, Slavica and Radovanović, Željko and Janaćković, Đorđe and Petrović, Rada",
year = "2022",
abstract = "Fotokatalizatori za redukciju CrVI sintetisani su deponovanjem nanodestica CdS Vili Cu

na TiOz. Redukcijom Cu'* jona ekstraktom lisca hrasta u prisustvu TiO, sintetisan je Cu-

TiO,,

a Cu-TIO,-CdS reakcijom kadmijum-acetata i tiouree u prisustvu Cu-TiO,.

Redukcija CrVD je ispitivana pod dejstvom simuliranog vidljivog zracenja, na pH-3 i

pH=6. DRS je pokazala da fotokatalizatori apsorbuju u vidljivom delu spektra. Cu-TiO,-CdS pokazuje dve granice apsorpcije, za TiO, i za CdS. Cu-TiO, je imao uzu zabranjenu

zonu u odnosu na TiO, i dodatnu apsorpciju u vidijivoj oblasti. Oba fotokatalizatora, a

posebno Cu-110-Cos, su pokazala znatno vecu efikasnost od cistog 11O≥. Odredivanjem

sadrzaja Cd'* jona u rastvoru i ispitivanjem moguénosti ponovne upotrebe fotokatalizatora,

utureno je da dolazi do korozije Cu-TiO,-CdS pri pH=3. Korozija je znacajno smanjena

pri pH=6, ali je i fotokatalitieka efikasnost bila manja., Photocatalysts for the reduction of Cr(VI) were synthesized by depositing CdS and/or Cu nanoparticles on TiO,. Cu-TiO, was synthesized by the reduction of Cu?" ions with oak leaf extract in the presence of TiO,, and Cu-TiO.-CdS by the reaction of cadmium acetate and thiourea in the presence of Cu-TiO,, The reduction of Cr(VI was tested under simulated visible irradiation, at pH-3 or pH-6. DRS has shown that the photocatalysts absorb in the visible part of the spectrum. Cu-TiO,-CdS showed two absorption edges, one for TiO, and the other for CdS. The Cu-TiO, sample had a narrower band gap than TiO, and additional absorption in the visible region. Both photocatalysts, especially Cu-TiO.-CdS" showed significantly higher efficiency than pure TiO,. Based on determining the content of Cd** ions in the solution and examining the possibility of reusing photocatalysts, it was determined that Cu-TiO,-CdS corrosion occurs at pH=3. Corrosion was significantly reduced at pH-6, but the photocatalytic efficiency was also lower.",
publisher = "Beograd : Srpsko hemijsko društvo = Serbian Chemical Society",
journal = "Kratki izvodi radova ; Knjiga radova / 58. savetovanje Srpskog hemijskog društva, Beograd, 9. i 10. jun 2022. godine = Book of Abstracts ; Proceedings = 58th meeting of the Serbian Chemical Society, Belgrade, June 9-10, 2022",
title = "Fotokatalizatori na bazi TiO2 za redukciju Cr(VI), Photocatalysts based on TiO2 for the reduction of Cr(VI)",
pages = "106",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7485"
}

Petrović, J., Barać, N., Lazarević, S., Radovanović, Ž., Janaćković, Đ.,& Petrović, R.. (2022). Fotokatalizatori na bazi TiO2 za redukciju Cr(VI). in Kratki izvodi radova ; Knjiga radova / 58. savetovanje Srpskog hemijskog društva, Beograd, 9. i 10. jun 2022. godine = Book of Abstracts ; Proceedings = 58th meeting of the Serbian Chemical Society, Belgrade, June 9-10, 2022
Beograd : Srpsko hemijsko društvo = Serbian Chemical Society., 106.
https://hdl.handle.net/21.15107/rcub_technorep_7485

Petrović J, Barać N, Lazarević S, Radovanović Ž, Janaćković Đ, Petrović R. Fotokatalizatori na bazi TiO2 za redukciju Cr(VI). in Kratki izvodi radova ; Knjiga radova / 58. savetovanje Srpskog hemijskog društva, Beograd, 9. i 10. jun 2022. godine = Book of Abstracts ; Proceedings = 58th meeting of the Serbian Chemical Society, Belgrade, June 9-10, 2022. 2022;:106.
https://hdl.handle.net/21.15107/rcub_technorep_7485 .

Petrović, Jana, Barać, Nemanja, Lazarević, Slavica, Radovanović, Željko, Janaćković, Đorđe, Petrović, Rada, "Fotokatalizatori na bazi TiO2 za redukciju Cr(VI)" in Kratki izvodi radova ; Knjiga radova / 58. savetovanje Srpskog hemijskog društva, Beograd, 9. i 10. jun 2022. godine = Book of Abstracts ; Proceedings = 58th meeting of the Serbian Chemical Society, Belgrade, June 9-10, 2022 (2022):106,
https://hdl.handle.net/21.15107/rcub_technorep_7485 .

TY  - CONF
AU  - Petrović, Jana
AU  - Lazarević, Slavica
AU  - Barać, Nemanja
AU  - Ugrinović, Vukašin
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7483
AB  - In the field of photocatalysis, various semiconductor materials have been widely used, precisely because of their electronic structure, which allows them to operate under the different types of irradiations. Titanium dioxide, TiO2, is the most widely used photocatalyst due to its biological and chemical inertness, non-toxicity, availability and affordability. Nevertheless, the inefficient utilization of visible light and high recombination rate of electrons and holes, limit its practicalapplication. Two types of modifications have been used to improve certain properties of TiO2andtake the advantages of the good ones: changing the phase structure, crystallinity, or morphology and combining with various ions, noble metals, semiconductors or other materials by doping, deposition, or sensitization [1,2]. In this work, sol-gel synthesized TiO2 [3] was modified by depositing carbon quantum dots (CQD) and/or cadmium sulfide, CdS, in order to form heterojunctions and so-called"Z" scheme [4]. CQDs were deposited by decomposition of citric acid in hydrothermal conditions (sample CQD-TiO2), and CdS by thermal decomposition of thiourea in the presence of cadmium acetate (samples CQD-TiO2 and CQD-TiO2-CdS). ...
PB  - Belgrade : Serbian Academy of Sciences and Arts
C3  - Program and Book of Abstracts / Second International Conference ELMINA Electron Microscopy of Nanostructures 2022, Belgrade, Serbia, August 22nd-26th, 2022
T1  - Carbon quantum dots-assisted CdS/TiO2 heterojunction for photocatalytic reduction of hexavalent chromium under visible light
SP  - 196
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7483
ER  - 

@conference{
author = "Petrović, Jana and Lazarević, Slavica and Barać, Nemanja and Ugrinović, Vukašin and Janaćković, Đorđe and Petrović, Rada",
year = "2022",
abstract = "In the field of photocatalysis, various semiconductor materials have been widely used, precisely because of their electronic structure, which allows them to operate under the different types of irradiations. Titanium dioxide, TiO2, is the most widely used photocatalyst due to its biological and chemical inertness, non-toxicity, availability and affordability. Nevertheless, the inefficient utilization of visible light and high recombination rate of electrons and holes, limit its practicalapplication. Two types of modifications have been used to improve certain properties of TiO2andtake the advantages of the good ones: changing the phase structure, crystallinity, or morphology and combining with various ions, noble metals, semiconductors or other materials by doping, deposition, or sensitization [1,2]. In this work, sol-gel synthesized TiO2 [3] was modified by depositing carbon quantum dots (CQD) and/or cadmium sulfide, CdS, in order to form heterojunctions and so-called"Z" scheme [4]. CQDs were deposited by decomposition of citric acid in hydrothermal conditions (sample CQD-TiO2), and CdS by thermal decomposition of thiourea in the presence of cadmium acetate (samples CQD-TiO2 and CQD-TiO2-CdS). ...",
publisher = "Belgrade : Serbian Academy of Sciences and Arts",
journal = "Program and Book of Abstracts / Second International Conference ELMINA Electron Microscopy of Nanostructures 2022, Belgrade, Serbia, August 22nd-26th, 2022",
title = "Carbon quantum dots-assisted CdS/TiO2 heterojunction for photocatalytic reduction of hexavalent chromium under visible light",
pages = "196",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7483"
}

Petrović, J., Lazarević, S., Barać, N., Ugrinović, V., Janaćković, Đ.,& Petrović, R.. (2022). Carbon quantum dots-assisted CdS/TiO2 heterojunction for photocatalytic reduction of hexavalent chromium under visible light. in Program and Book of Abstracts / Second International Conference ELMINA Electron Microscopy of Nanostructures 2022, Belgrade, Serbia, August 22nd-26th, 2022
Belgrade : Serbian Academy of Sciences and Arts., 196.
https://hdl.handle.net/21.15107/rcub_technorep_7483

Petrović J, Lazarević S, Barać N, Ugrinović V, Janaćković Đ, Petrović R. Carbon quantum dots-assisted CdS/TiO2 heterojunction for photocatalytic reduction of hexavalent chromium under visible light. in Program and Book of Abstracts / Second International Conference ELMINA Electron Microscopy of Nanostructures 2022, Belgrade, Serbia, August 22nd-26th, 2022. 2022;:196.
https://hdl.handle.net/21.15107/rcub_technorep_7483 .

Petrović, Jana, Lazarević, Slavica, Barać, Nemanja, Ugrinović, Vukašin, Janaćković, Đorđe, Petrović, Rada, "Carbon quantum dots-assisted CdS/TiO2 heterojunction for photocatalytic reduction of hexavalent chromium under visible light" in Program and Book of Abstracts / Second International Conference ELMINA Electron Microscopy of Nanostructures 2022, Belgrade, Serbia, August 22nd-26th, 2022 (2022):196,
https://hdl.handle.net/21.15107/rcub_technorep_7483 .

TY  - CONF
AU  - Petrović, Jana
AU  - Radovanović, Željko
AU  - Lazarević, Slavica
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7484
AB  - A potential visible light photocatalyst, metal-free graphitic carbon nitride (g-C3N4) has
attracted great attention as a green photocatalyst due to its simple preparation, high stability,
low cost and medium band gap of about 2,7 eV. Nevertheless, high recombination rate of
electrons and holes and small specific surface area limit its practical application. To improve
certain properties and use the good ones of g-C3N4, different types of modifications have
been used including doping, deposition or sensitization with various ions, noble metals,
semiconductors or other materials. In this work, g-C3N4 was produced from urea by simple
pyrolysis process and was modified by depositing TiO2 and/or carbon quantum dots (CQD)
in order to form heterojunctions, including so-called "Z" scheme. CQDs were deposited by
decomposition of citric acid in hydrothermal conditions (samples CQD-C3N4 and CQDC3N4-TiO2)) and TiO2 by modified sol-gel method (samples C3N4-TiO2 and CQD-C3N4- TiO2). The properties of the obtained photocatalysts were studied by FESEM, FTIR, BET
and DRS analysis. Photocatalytic reduction of Cr(VI) was tested at a constant initial solution
concentration (10 mg/l), at pH=3 or pH=6, under the simulated visible irradiation. The
concentration of Cr(VI) after irradiation was determined by UV-Vis spectroscopy. Obtained
results showed that the modified photocatalysts provided significantly higher photocatalytic
efficiency under the visible light compared to pure g-C3N4.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Twentieth Young Researchers' Conference Materials Science and Engineering, November 30 – December 2, 2022, Belgrade, Serbia
T1  - Heterojunctions based on g-C3N4 for the photocatalytic reduction of Cr(VI)
SP  - 73
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7484
ER  - 

@conference{
author = "Petrović, Jana and Radovanović, Željko and Lazarević, Slavica and Janaćković, Đorđe and Petrović, Rada",
year = "2022",
abstract = "A potential visible light photocatalyst, metal-free graphitic carbon nitride (g-C3N4) has
attracted great attention as a green photocatalyst due to its simple preparation, high stability,
low cost and medium band gap of about 2,7 eV. Nevertheless, high recombination rate of
electrons and holes and small specific surface area limit its practical application. To improve
certain properties and use the good ones of g-C3N4, different types of modifications have
been used including doping, deposition or sensitization with various ions, noble metals,
semiconductors or other materials. In this work, g-C3N4 was produced from urea by simple
pyrolysis process and was modified by depositing TiO2 and/or carbon quantum dots (CQD)
in order to form heterojunctions, including so-called "Z" scheme. CQDs were deposited by
decomposition of citric acid in hydrothermal conditions (samples CQD-C3N4 and CQDC3N4-TiO2)) and TiO2 by modified sol-gel method (samples C3N4-TiO2 and CQD-C3N4- TiO2). The properties of the obtained photocatalysts were studied by FESEM, FTIR, BET
and DRS analysis. Photocatalytic reduction of Cr(VI) was tested at a constant initial solution
concentration (10 mg/l), at pH=3 or pH=6, under the simulated visible irradiation. The
concentration of Cr(VI) after irradiation was determined by UV-Vis spectroscopy. Obtained
results showed that the modified photocatalysts provided significantly higher photocatalytic
efficiency under the visible light compared to pure g-C3N4.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Twentieth Young Researchers' Conference Materials Science and Engineering, November 30 – December 2, 2022, Belgrade, Serbia",
title = "Heterojunctions based on g-C3N4 for the photocatalytic reduction of Cr(VI)",
pages = "73",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7484"
}

Petrović, J., Radovanović, Ž., Lazarević, S., Janaćković, Đ.,& Petrović, R.. (2022). Heterojunctions based on g-C3N4 for the photocatalytic reduction of Cr(VI). in Program and the Book of Abstracts / Twentieth Young Researchers' Conference Materials Science and Engineering, November 30 – December 2, 2022, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 73.
https://hdl.handle.net/21.15107/rcub_technorep_7484

Petrović J, Radovanović Ž, Lazarević S, Janaćković Đ, Petrović R. Heterojunctions based on g-C3N4 for the photocatalytic reduction of Cr(VI). in Program and the Book of Abstracts / Twentieth Young Researchers' Conference Materials Science and Engineering, November 30 – December 2, 2022, Belgrade, Serbia. 2022;:73.
https://hdl.handle.net/21.15107/rcub_technorep_7484 .

Petrović, Jana, Radovanović, Željko, Lazarević, Slavica, Janaćković, Đorđe, Petrović, Rada, "Heterojunctions based on g-C3N4 for the photocatalytic reduction of Cr(VI)" in Program and the Book of Abstracts / Twentieth Young Researchers' Conference Materials Science and Engineering, November 30 – December 2, 2022, Belgrade, Serbia (2022):73,
https://hdl.handle.net/21.15107/rcub_technorep_7484 .

TY  - CONF
AU  - Ugrinović, Vukašin
AU  - Hristara, Veroniki
AU  - Marković, Maja
AU  - Petrović, Predrag
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
AU  - Veljović, Đorđe
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5240
AB  - Hydrogels are three-dimensional hydrophilic networks of polymers capable of retaining large
amounts of water or biological fluids, which makes them attractive for biomedical and
pharmaceutical applications. Although various types of polymers have been investigated as
hydrogels for biomedical purposes, those obtained from natural polymers have intrinsic
advantages as they are abundant, cheap, biocompatible and biodegradable. Gelatin is a natural
polymer that has been applied in biomedicine due to its low price, biocompatibility, and
biodegradability. HPMC, a derivative of cellulose, is a hydrophilic, biodegradable, and
biocompatible polymer. However, natural polymer-based hydrogels have low mechanical
properties and are relatively soluble in physiological conditions, which requires creative crosslinking strategies to improve the functionality of the hydrogels. The citric acid (CA) is an
inexpensive and non-toxic compound that has been proven to be an effective crosslinker for
natural polymers. In addition, the incorporation of bioactive calcium phosphate particles could
further improve mechanical properties and add new functionalities to the hydrogels.
In this work, we present novel composite hydrogels for biomedical applications, based on CAcrosslinked gelatin/HPMC (HPMC-G) matrix and Mg-doped biphasic calcium phosphate filler
(BCP). Firstly, the HPMC-G hydrogels crosslinking conditions were optimized. Different CA
concentrations, curing temperatures (140-180°C) and times (3-9 min) were applied. During the
second step, the optimaly crosslinked HPMC-G hydrogel was incorporated with different amounts
of BCP. BCP was obtained by calcination of Mg-doped hydroxyapatite (HA) powder synthesized
by the hydrothermal method. XRD analysis confirmed that powder was constituted only of HA
and beta-tricalcium phosphate. The obtained composite hydrogels were characterized by
mechanical testing, FTIR, SEM, swelling behavior and drug deliverability.
PB  - Materials Research Society of Serbia, Belgrade, Serbia
C3  - TWENTY THIRD ANNUAL CONFERENCE - YUCOMAT 2022, Herceg Novi, Montenegro
T1  - Composite hydrogels based on gelatin, hydroxypropyl methylcellulose and Mg-doped biphasic calcium phosphate for biomedical applications
UR  - https://hdl.handle.net/21.15107/rcub_technorep_5240
ER  - 

@conference{
author = "Ugrinović, Vukašin and Hristara, Veroniki and Marković, Maja and Petrović, Predrag and Petrović, Rada and Janaćković, Đorđe and Veljović, Đorđe",
year = "2022",
abstract = "Hydrogels are three-dimensional hydrophilic networks of polymers capable of retaining large
amounts of water or biological fluids, which makes them attractive for biomedical and
pharmaceutical applications. Although various types of polymers have been investigated as
hydrogels for biomedical purposes, those obtained from natural polymers have intrinsic
advantages as they are abundant, cheap, biocompatible and biodegradable. Gelatin is a natural
polymer that has been applied in biomedicine due to its low price, biocompatibility, and
biodegradability. HPMC, a derivative of cellulose, is a hydrophilic, biodegradable, and
biocompatible polymer. However, natural polymer-based hydrogels have low mechanical
properties and are relatively soluble in physiological conditions, which requires creative crosslinking strategies to improve the functionality of the hydrogels. The citric acid (CA) is an
inexpensive and non-toxic compound that has been proven to be an effective crosslinker for
natural polymers. In addition, the incorporation of bioactive calcium phosphate particles could
further improve mechanical properties and add new functionalities to the hydrogels.
In this work, we present novel composite hydrogels for biomedical applications, based on CAcrosslinked gelatin/HPMC (HPMC-G) matrix and Mg-doped biphasic calcium phosphate filler
(BCP). Firstly, the HPMC-G hydrogels crosslinking conditions were optimized. Different CA
concentrations, curing temperatures (140-180°C) and times (3-9 min) were applied. During the
second step, the optimaly crosslinked HPMC-G hydrogel was incorporated with different amounts
of BCP. BCP was obtained by calcination of Mg-doped hydroxyapatite (HA) powder synthesized
by the hydrothermal method. XRD analysis confirmed that powder was constituted only of HA
and beta-tricalcium phosphate. The obtained composite hydrogels were characterized by
mechanical testing, FTIR, SEM, swelling behavior and drug deliverability.",
publisher = "Materials Research Society of Serbia, Belgrade, Serbia",
journal = "TWENTY THIRD ANNUAL CONFERENCE - YUCOMAT 2022, Herceg Novi, Montenegro",
title = "Composite hydrogels based on gelatin, hydroxypropyl methylcellulose and Mg-doped biphasic calcium phosphate for biomedical applications",
url = "https://hdl.handle.net/21.15107/rcub_technorep_5240"
}

Ugrinović, V., Hristara, V., Marković, M., Petrović, P., Petrović, R., Janaćković, Đ.,& Veljović, Đ.. (2022). Composite hydrogels based on gelatin, hydroxypropyl methylcellulose and Mg-doped biphasic calcium phosphate for biomedical applications. in TWENTY THIRD ANNUAL CONFERENCE - YUCOMAT 2022, Herceg Novi, Montenegro
Materials Research Society of Serbia, Belgrade, Serbia..
https://hdl.handle.net/21.15107/rcub_technorep_5240

Ugrinović V, Hristara V, Marković M, Petrović P, Petrović R, Janaćković Đ, Veljović Đ. Composite hydrogels based on gelatin, hydroxypropyl methylcellulose and Mg-doped biphasic calcium phosphate for biomedical applications. in TWENTY THIRD ANNUAL CONFERENCE - YUCOMAT 2022, Herceg Novi, Montenegro. 2022;.
https://hdl.handle.net/21.15107/rcub_technorep_5240 .

Ugrinović, Vukašin, Hristara, Veroniki, Marković, Maja, Petrović, Predrag, Petrović, Rada, Janaćković, Đorđe, Veljović, Đorđe, "Composite hydrogels based on gelatin, hydroxypropyl methylcellulose and Mg-doped biphasic calcium phosphate for biomedical applications" in TWENTY THIRD ANNUAL CONFERENCE - YUCOMAT 2022, Herceg Novi, Montenegro (2022),
https://hdl.handle.net/21.15107/rcub_technorep_5240 .

TY  - JOUR
AU  - Stefanović, Milica P.
AU  - Vujančević, Jelena D.
AU  - Petrović, Rada P.
AU  - Stevanović, Marija S.
AU  - Janaćković, Đorđe T.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5274
AB  - Organsko-neorganski perovskiti su privukli veliku pažnju istraživača zbog visoke apsorpcije u vidljivom
delu spektra i jeftine proizvodnje. Apsorbovanjem svetlosti dolazi do stvaranja para elektron-šupljina.
U cilju razdvajanja nosilaca naelektrisanja, perovskit se kombinuje sa TiO2 što ima za posledicu
spontani prelazak elektrona sa perovskita na TiO2. Ovo istraživanje je imalo za cilj povećanje dodirne
površine između nanocevi TiO2 i perovskita punjenjem nanocevi perovskitnim materijalom. Rastvor
metilamonijum olovo(II)-bromidnog perovskita (CH3NH3PbBr3) u dimetilformamidu (DMF) je
deponovan na anodizacijom sintetisane TiO2 nanocevi pomoću sistema visokog vakuuma i inertnog
gasa. Postupak je uključivao degazaciju uzorka u visokom vakuumu u trajanju od 3 h na 200 °C, hlađenje
uzorka, a zatim nanošenje rastvora CH3NH3PbBr3 u DMF-u, uz naknadni tretman inertnim gasom (N2)
u cilju ostvarenja natpritiska, što je omogućilo punjenje nanocevi perovskitnim materijalom. Difuznorefleksiona spektroskopija pokazala je da taloženje CH3NH3PbBr3 poboljšava apsorpciona svojstva
TiO2 nanocevi. I-V karakteristike uzorka pokazale su fotodiodno ponašanje i histerezisnu krivu, koja je
karakteristična za perovskitni materijal. Vrednost struje uzorka snimljenim pod vidljivom svetlošću
iznosila je 46 μA bez primene prednapona, dok je nakon primene prednapona iznosila 76 μA. Rezultati
rada ukazuju da je napravljena perovskitna fotodioda sa povećanim kontaktom između TiO2 i perovskita,
koja predstavlja osnovu za buduću konstrukciju solarnih ćelija.
AB  - Organic-inorganic perovskites have attracted much attention from researchers due to their high absorption in the visible part of the spectrum and low-cost fabrication. After absorption of the light, electron-hole pairs are formed. To separate electron-hole pairs and reduce recombination, perovskite is combined with TiO2 which has as a consequence, a spontaneous transition of electrons from perovskite to TiO2. This research aims to increase the contact surface of perovskite and TiO2 nanotubes by filling the nanotubes with perovskite material. The solution of methylammonium lead bromide perovskite (CH3NH3PbBr3) in dimethylformamide (DMF) was deposited on anodically synthesized TiO2 nanotubes by the high vacuum system and inert gas. The procedure involved degassation of the sample under high vacuum for 3 h at 200 °C, cooling of the sample, and putting the solution of CH3NH3PbBr3 in DMF, after which it was treated with inert gas (N2), as an overpressure which enabled the filling of the nanotubes with perovskite material. The diffuse reflectance spectroscopy measurement of the sample proved that deposition of CH3NH3PbBr3 improves the absorption properties of TiO2 nanotubes. The I-V characteristics of the sample showed photodiode behavior and characteristic hysteresis curve for perovskite material. The value of current under visible light for the sample without preconditioning was 46 mA, while after preconditioning value of current was 76 mA. The results indicate that a perovskite photodiode with increased contact between TiO2 and perovskite was made, which is the basis for future solar cell construction.
PB  - Savez inženjera i tehničara Srbije
T2  - Tehnika
T1  - Poboljšanje apsorpcionih svojstava TiO2 nanocevi pomoću CH3NH3PbBr3 perovskita kao fotosenzitivizatora
T1  - Improvement of absorption properties of TiO2 nanotubes by using CH3NH3PbBr3 perovskite as photosensitizer
EP  - 21
IS  - 1
SP  - 15
VL  - 31
DO  - 10.5937/tehnika2201015S
ER  - 

@article{
author = "Stefanović, Milica P. and Vujančević, Jelena D. and Petrović, Rada P. and Stevanović, Marija S. and Janaćković, Đorđe T.",
year = "2022",
abstract = "Organsko-neorganski perovskiti su privukli veliku pažnju istraživača zbog visoke apsorpcije u vidljivom
delu spektra i jeftine proizvodnje. Apsorbovanjem svetlosti dolazi do stvaranja para elektron-šupljina.
U cilju razdvajanja nosilaca naelektrisanja, perovskit se kombinuje sa TiO2 što ima za posledicu
spontani prelazak elektrona sa perovskita na TiO2. Ovo istraživanje je imalo za cilj povećanje dodirne
površine između nanocevi TiO2 i perovskita punjenjem nanocevi perovskitnim materijalom. Rastvor
metilamonijum olovo(II)-bromidnog perovskita (CH3NH3PbBr3) u dimetilformamidu (DMF) je
deponovan na anodizacijom sintetisane TiO2 nanocevi pomoću sistema visokog vakuuma i inertnog
gasa. Postupak je uključivao degazaciju uzorka u visokom vakuumu u trajanju od 3 h na 200 °C, hlađenje
uzorka, a zatim nanošenje rastvora CH3NH3PbBr3 u DMF-u, uz naknadni tretman inertnim gasom (N2)
u cilju ostvarenja natpritiska, što je omogućilo punjenje nanocevi perovskitnim materijalom. Difuznorefleksiona spektroskopija pokazala je da taloženje CH3NH3PbBr3 poboljšava apsorpciona svojstva
TiO2 nanocevi. I-V karakteristike uzorka pokazale su fotodiodno ponašanje i histerezisnu krivu, koja je
karakteristična za perovskitni materijal. Vrednost struje uzorka snimljenim pod vidljivom svetlošću
iznosila je 46 μA bez primene prednapona, dok je nakon primene prednapona iznosila 76 μA. Rezultati
rada ukazuju da je napravljena perovskitna fotodioda sa povećanim kontaktom između TiO2 i perovskita,
koja predstavlja osnovu za buduću konstrukciju solarnih ćelija., Organic-inorganic perovskites have attracted much attention from researchers due to their high absorption in the visible part of the spectrum and low-cost fabrication. After absorption of the light, electron-hole pairs are formed. To separate electron-hole pairs and reduce recombination, perovskite is combined with TiO2 which has as a consequence, a spontaneous transition of electrons from perovskite to TiO2. This research aims to increase the contact surface of perovskite and TiO2 nanotubes by filling the nanotubes with perovskite material. The solution of methylammonium lead bromide perovskite (CH3NH3PbBr3) in dimethylformamide (DMF) was deposited on anodically synthesized TiO2 nanotubes by the high vacuum system and inert gas. The procedure involved degassation of the sample under high vacuum for 3 h at 200 °C, cooling of the sample, and putting the solution of CH3NH3PbBr3 in DMF, after which it was treated with inert gas (N2), as an overpressure which enabled the filling of the nanotubes with perovskite material. The diffuse reflectance spectroscopy measurement of the sample proved that deposition of CH3NH3PbBr3 improves the absorption properties of TiO2 nanotubes. The I-V characteristics of the sample showed photodiode behavior and characteristic hysteresis curve for perovskite material. The value of current under visible light for the sample without preconditioning was 46 mA, while after preconditioning value of current was 76 mA. The results indicate that a perovskite photodiode with increased contact between TiO2 and perovskite was made, which is the basis for future solar cell construction.",
publisher = "Savez inženjera i tehničara Srbije",
journal = "Tehnika",
title = "Poboljšanje apsorpcionih svojstava TiO2 nanocevi pomoću CH3NH3PbBr3 perovskita kao fotosenzitivizatora, Improvement of absorption properties of TiO2 nanotubes by using CH3NH3PbBr3 perovskite as photosensitizer",
pages = "21-15",
number = "1",
volume = "31",
doi = "10.5937/tehnika2201015S"
}

Stefanović, M. P., Vujančević, J. D., Petrović, R. P., Stevanović, M. S.,& Janaćković, Đ. T.. (2022). Poboljšanje apsorpcionih svojstava TiO2 nanocevi pomoću CH3NH3PbBr3 perovskita kao fotosenzitivizatora. in Tehnika
Savez inženjera i tehničara Srbije., 31(1), 15-21.
https://doi.org/10.5937/tehnika2201015S

Stefanović MP, Vujančević JD, Petrović RP, Stevanović MS, Janaćković ĐT. Poboljšanje apsorpcionih svojstava TiO2 nanocevi pomoću CH3NH3PbBr3 perovskita kao fotosenzitivizatora. in Tehnika. 2022;31(1):15-21.
doi:10.5937/tehnika2201015S .

Stefanović, Milica P., Vujančević, Jelena D., Petrović, Rada P., Stevanović, Marija S., Janaćković, Đorđe T., "Poboljšanje apsorpcionih svojstava TiO2 nanocevi pomoću CH3NH3PbBr3 perovskita kao fotosenzitivizatora" in Tehnika, 31, no. 1 (2022):15-21,
https://doi.org/10.5937/tehnika2201015S . .

TY  - JOUR
AU  - Matić, Tamara
AU  - Zebić, M. Ležaja
AU  - Miletić, Vesna
AU  - Cvijović-Alagić, Ivana
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
AU  - Veljović, Đorđe
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5362
AB  - The aim of this study was to investigate the influence of binary Sr, Mg ion-doping compared to the single-ion doping effects on the phase composition and morphology of hydrothermally obtained calcium hydroxyapatite (HAP) powders and on the phase composition, microstructure, and mechanical properties of the sintered materials. Additionally, the focus of this study was to investigate the possible utilization of the binary doped Sr,Mg-HAP compacts as dentin substitutes in restorative dentistry by evaluating their bonding ability with commercially available restorative materials using the shear bond strength test (SBS). The hydrothermally obtained mono-doped Mg5 and Sr5 showed the monophasic apatite structure, while in all co-doped samples β-TCP phase was formed, resulting in biphasic calcium phosphate (BCP) powders. It was confirmed that co-doping with Sr and Mg ions led to the thermal stabilization of the β-TCP phase by suppressing the phase transition into α-TCP when sintered at 1200 °C. Moreover, the co-presence of Mg ions significantly improved the hardness of Sr-doped HAP from 3.74 to 5.02 GPa. Sr,Mg-HAP dental inserts were found to achieve sufficient bonding (13.53 MPa) through the micromechanical interlocking with Z250 dental composite and Single Bond Universal dental adhesive applied with a total etch approach. The SBS values obtained for the SrMg-HAP insert were similar to the literature data on bonding ability with human dentin, indicating that binary doped Sr,Mg-HAP ceramics present a promising material for application in restorative dentistry as dentin substitutes.
T2  - Ceramics International
T1  - Sr,Mg co-doping of calcium hydroxyapatite: Hydrothermal synthesis, processing, characterization and possible application as dentin substitutes
EP  - 11165
IS  - 8
SP  - 11155
VL  - 48
DO  - 10.1016/j.ceramint.2021.12.335
ER  - 

@article{
author = "Matić, Tamara and Zebić, M. Ležaja and Miletić, Vesna and Cvijović-Alagić, Ivana and Petrović, Rada and Janaćković, Đorđe and Veljović, Đorđe",
year = "2022",
abstract = "The aim of this study was to investigate the influence of binary Sr, Mg ion-doping compared to the single-ion doping effects on the phase composition and morphology of hydrothermally obtained calcium hydroxyapatite (HAP) powders and on the phase composition, microstructure, and mechanical properties of the sintered materials. Additionally, the focus of this study was to investigate the possible utilization of the binary doped Sr,Mg-HAP compacts as dentin substitutes in restorative dentistry by evaluating their bonding ability with commercially available restorative materials using the shear bond strength test (SBS). The hydrothermally obtained mono-doped Mg5 and Sr5 showed the monophasic apatite structure, while in all co-doped samples β-TCP phase was formed, resulting in biphasic calcium phosphate (BCP) powders. It was confirmed that co-doping with Sr and Mg ions led to the thermal stabilization of the β-TCP phase by suppressing the phase transition into α-TCP when sintered at 1200 °C. Moreover, the co-presence of Mg ions significantly improved the hardness of Sr-doped HAP from 3.74 to 5.02 GPa. Sr,Mg-HAP dental inserts were found to achieve sufficient bonding (13.53 MPa) through the micromechanical interlocking with Z250 dental composite and Single Bond Universal dental adhesive applied with a total etch approach. The SBS values obtained for the SrMg-HAP insert were similar to the literature data on bonding ability with human dentin, indicating that binary doped Sr,Mg-HAP ceramics present a promising material for application in restorative dentistry as dentin substitutes.",
journal = "Ceramics International",
title = "Sr,Mg co-doping of calcium hydroxyapatite: Hydrothermal synthesis, processing, characterization and possible application as dentin substitutes",
pages = "11165-11155",
number = "8",
volume = "48",
doi = "10.1016/j.ceramint.2021.12.335"
}

Matić, T., Zebić, M. L., Miletić, V., Cvijović-Alagić, I., Petrović, R., Janaćković, Đ.,& Veljović, Đ.. (2022). Sr,Mg co-doping of calcium hydroxyapatite: Hydrothermal synthesis, processing, characterization and possible application as dentin substitutes. in Ceramics International, 48(8), 11155-11165.
https://doi.org/10.1016/j.ceramint.2021.12.335

Matić T, Zebić ML, Miletić V, Cvijović-Alagić I, Petrović R, Janaćković Đ, Veljović Đ. Sr,Mg co-doping of calcium hydroxyapatite: Hydrothermal synthesis, processing, characterization and possible application as dentin substitutes. in Ceramics International. 2022;48(8):11155-11165.
doi:10.1016/j.ceramint.2021.12.335 .

Matić, Tamara, Zebić, M. Ležaja, Miletić, Vesna, Cvijović-Alagić, Ivana, Petrović, Rada, Janaćković, Đorđe, Veljović, Đorđe, "Sr,Mg co-doping of calcium hydroxyapatite: Hydrothermal synthesis, processing, characterization and possible application as dentin substitutes" in Ceramics International, 48, no. 8 (2022):11155-11165,
https://doi.org/10.1016/j.ceramint.2021.12.335 . .

TY  - CONF
AU  - Marjanović, Vesna
AU  - Janković-Častvan, Ivona
AU  - Lazarević, Slavica
AU  - Radovanović, Željko
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5920
AB  - Ciprofloxacin (CIP) as a broad-spectrum quinolone antibiotic is extensively used in daily life and can be detected in municipal and pharmaceutical wastewaters, as well as natural waters. In this study, natural mineral sepiolite (SEP), SEP modified with hexadecyltrimethylammonium-bromide (HDAB) and SEP composites with graphene oxide (GO) were used as adsorbents for the removal of CIP from aqueous solutions. The composites were prepared at a mass ratio SEP to GO of 2 : 1, using SEP and SEP modified by [3-(2-aminoethylamino)propyl]trimethoxy-silane (APT). Thermogravimetric analysis, X-ray diffraction and nitrogen adsorption-desorption were used to characterize the obtained adsorbents. The adsorption of CIP was investigated at the pH value close to pH of natural waters. The concentration of CIP in aqueous solution was determined by UV-Vis spectroscopy. GO showed the highest adsorption capacity (~ 150 mg/g). The capacity of SEP was about 60 mg/g, while the SEP modification with HDAB has led to a decrease in the adsorption capacity (~ 35 mg/g). The composite SEP/GO showed the higher adsorption capacity (~ 110 mg/g) than the composite SEP-APT/GO (~ 40 mg/g). The capacity of the composite SEP/GO was higher than of mixture of SEP and GO, which indicated a certain degree of GO exfoliation and intecalation of sepiolie particles, as it was shown by X-ray diffraction. Equilibrium data for all adsorbents, except for HDAB modified sepiolite, fitted well to the Langmuir isotherm model.
PB  - University of Novi Sad, Faculty of Technology Novi Sad
C3  - 2nd International Conference on Advanced Production and Processing, Book of abstracts
T1  - Ciprofloxacin removal using sepiolite-based adsorbents
SP  - 218
SP  - 218
UR  - https://hdl.handle.net/21.15107/rcub_technorep_5920
ER  - 

@conference{
author = "Marjanović, Vesna and Janković-Častvan, Ivona and Lazarević, Slavica and Radovanović, Željko and Janaćković, Đorđe and Petrović, Rada",
year = "2022",
abstract = "Ciprofloxacin (CIP) as a broad-spectrum quinolone antibiotic is extensively used in daily life and can be detected in municipal and pharmaceutical wastewaters, as well as natural waters. In this study, natural mineral sepiolite (SEP), SEP modified with hexadecyltrimethylammonium-bromide (HDAB) and SEP composites with graphene oxide (GO) were used as adsorbents for the removal of CIP from aqueous solutions. The composites were prepared at a mass ratio SEP to GO of 2 : 1, using SEP and SEP modified by [3-(2-aminoethylamino)propyl]trimethoxy-silane (APT). Thermogravimetric analysis, X-ray diffraction and nitrogen adsorption-desorption were used to characterize the obtained adsorbents. The adsorption of CIP was investigated at the pH value close to pH of natural waters. The concentration of CIP in aqueous solution was determined by UV-Vis spectroscopy. GO showed the highest adsorption capacity (~ 150 mg/g). The capacity of SEP was about 60 mg/g, while the SEP modification with HDAB has led to a decrease in the adsorption capacity (~ 35 mg/g). The composite SEP/GO showed the higher adsorption capacity (~ 110 mg/g) than the composite SEP-APT/GO (~ 40 mg/g). The capacity of the composite SEP/GO was higher than of mixture of SEP and GO, which indicated a certain degree of GO exfoliation and intecalation of sepiolie particles, as it was shown by X-ray diffraction. Equilibrium data for all adsorbents, except for HDAB modified sepiolite, fitted well to the Langmuir isotherm model.",
publisher = "University of Novi Sad, Faculty of Technology Novi Sad",
journal = "2nd International Conference on Advanced Production and Processing, Book of abstracts",
title = "Ciprofloxacin removal using sepiolite-based adsorbents",
pages = "218-218",
url = "https://hdl.handle.net/21.15107/rcub_technorep_5920"
}

Marjanović, V., Janković-Častvan, I., Lazarević, S., Radovanović, Ž., Janaćković, Đ.,& Petrović, R.. (2022). Ciprofloxacin removal using sepiolite-based adsorbents. in 2nd International Conference on Advanced Production and Processing, Book of abstracts
University of Novi Sad, Faculty of Technology Novi Sad., 218.
https://hdl.handle.net/21.15107/rcub_technorep_5920

Marjanović V, Janković-Častvan I, Lazarević S, Radovanović Ž, Janaćković Đ, Petrović R. Ciprofloxacin removal using sepiolite-based adsorbents. in 2nd International Conference on Advanced Production and Processing, Book of abstracts. 2022;:218.
https://hdl.handle.net/21.15107/rcub_technorep_5920 .

Marjanović, Vesna, Janković-Častvan, Ivona, Lazarević, Slavica, Radovanović, Željko, Janaćković, Đorđe, Petrović, Rada, "Ciprofloxacin removal using sepiolite-based adsorbents" in 2nd International Conference on Advanced Production and Processing, Book of abstracts (2022):218,
https://hdl.handle.net/21.15107/rcub_technorep_5920 .

TY  - CONF
AU  - Stefanović, Milica
AU  - Lukić, Ivana
AU  - Vujančević, Jelena
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6170
AB  - Supercritical carbon dioxide (sCO2) is an ideal low-temperature cosolvent for perovskite
deposition due to its relatively low critical point (31.2 °C, 73.8 bar), no surface tension, liquidlike density, gas-like viscosity, and diffusivity. It enables faster mass transfer which allows
penetration of crystals in nanoporous structure. The study investigates the influence of time of
deposition of perovskite assisted with supercritical carbon dioxide on the filling of nanotubes.
Perovskite solar cell technology has been developed so fast due to several factors including a
tunable band gap, high absorption coefficient, and low-cost fabrication. The quality of the
perovskite film is important for the high efficiency of perovskite solar cells. Perovskite precursors
are usually deposited from the solution onto a substrate using spin-coating followed by postdeposition treatments, but often it results in low-quality films that cannot provide good
photovoltaic performances. Deposition of perovskite in the presence of sCO2 is a promising
method for the formation of high-quality perovskite layers. In this work, methylammonium lead
bromide perovskite (MAPbBr3) was deposited on TiO2 nanotubes from the solution in
dimethylformamide (DMF) by application of sCO2 at 35 °C and 200 bar for 1 h, and 3 h. FESEM
results show that TiO2 nanotubes were filled with perovskite material in both cases. The diffuse
reflectance spectroscopy measurement of samples proved that the absorption edge of prepared
TiO2 nanotubes/MAPbBr3 was extended to the visible range. Measurement of I-V characteristics
showed that the sample made for 3 h had a higher value of current than the sample prepared for 1
h. The application of sCO2 during the deposition of perovskite has enabled the preparation of a
photodiode with a better contact between TiO2 nanotubes and perovskite which is important for
the future development of solar cells.
PB  - Materials Research Society of Serbia
C3  - 23th Annual Conference YUCOMAT 2022 and 12th WRTCS
T1  - Supercritical CO2 assisted deposition of MAPbBr3 perovskite onto TiO2 nanotubes
SP  - 73
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6170
ER  - 

@conference{
author = "Stefanović, Milica and Lukić, Ivana and Vujančević, Jelena and Petrović, Rada and Janaćković, Đorđe",
year = "2022",
abstract = "Supercritical carbon dioxide (sCO2) is an ideal low-temperature cosolvent for perovskite
deposition due to its relatively low critical point (31.2 °C, 73.8 bar), no surface tension, liquidlike density, gas-like viscosity, and diffusivity. It enables faster mass transfer which allows
penetration of crystals in nanoporous structure. The study investigates the influence of time of
deposition of perovskite assisted with supercritical carbon dioxide on the filling of nanotubes.
Perovskite solar cell technology has been developed so fast due to several factors including a
tunable band gap, high absorption coefficient, and low-cost fabrication. The quality of the
perovskite film is important for the high efficiency of perovskite solar cells. Perovskite precursors
are usually deposited from the solution onto a substrate using spin-coating followed by postdeposition treatments, but often it results in low-quality films that cannot provide good
photovoltaic performances. Deposition of perovskite in the presence of sCO2 is a promising
method for the formation of high-quality perovskite layers. In this work, methylammonium lead
bromide perovskite (MAPbBr3) was deposited on TiO2 nanotubes from the solution in
dimethylformamide (DMF) by application of sCO2 at 35 °C and 200 bar for 1 h, and 3 h. FESEM
results show that TiO2 nanotubes were filled with perovskite material in both cases. The diffuse
reflectance spectroscopy measurement of samples proved that the absorption edge of prepared
TiO2 nanotubes/MAPbBr3 was extended to the visible range. Measurement of I-V characteristics
showed that the sample made for 3 h had a higher value of current than the sample prepared for 1
h. The application of sCO2 during the deposition of perovskite has enabled the preparation of a
photodiode with a better contact between TiO2 nanotubes and perovskite which is important for
the future development of solar cells.",
publisher = "Materials Research Society of Serbia",
journal = "23th Annual Conference YUCOMAT 2022 and 12th WRTCS",
title = "Supercritical CO2 assisted deposition of MAPbBr3 perovskite onto TiO2 nanotubes",
pages = "73",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6170"
}

Stefanović, M., Lukić, I., Vujančević, J., Petrović, R.,& Janaćković, Đ.. (2022). Supercritical CO2 assisted deposition of MAPbBr3 perovskite onto TiO2 nanotubes. in 23th Annual Conference YUCOMAT 2022 and 12th WRTCS
Materials Research Society of Serbia., 73.
https://hdl.handle.net/21.15107/rcub_technorep_6170

Stefanović M, Lukić I, Vujančević J, Petrović R, Janaćković Đ. Supercritical CO2 assisted deposition of MAPbBr3 perovskite onto TiO2 nanotubes. in 23th Annual Conference YUCOMAT 2022 and 12th WRTCS. 2022;:73.
https://hdl.handle.net/21.15107/rcub_technorep_6170 .

Stefanović, Milica, Lukić, Ivana, Vujančević, Jelena, Petrović, Rada, Janaćković, Đorđe, "Supercritical CO2 assisted deposition of MAPbBr3 perovskite onto TiO2 nanotubes" in 23th Annual Conference YUCOMAT 2022 and 12th WRTCS (2022):73,
https://hdl.handle.net/21.15107/rcub_technorep_6170 .

TY  - CONF
AU  - Stefanović, Milica
AU  - Lukić, Ivana
AU  - Vujančević, Jelena
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6172
PB  - Serbian Academy of Sciences and Arts
C3  - Second International conference ELMINA2022 Electron Microscopy of Nanostructures
T1  - Improving the contact surface between TiO2 nanotubes and MAPbBr3 to make perovskite solar cells
EP  - 190
SP  - 189
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6172
ER  - 

@conference{
author = "Stefanović, Milica and Lukić, Ivana and Vujančević, Jelena and Petrović, Rada and Janaćković, Đorđe",
year = "2022",
publisher = "Serbian Academy of Sciences and Arts",
journal = "Second International conference ELMINA2022 Electron Microscopy of Nanostructures",
title = "Improving the contact surface between TiO2 nanotubes and MAPbBr3 to make perovskite solar cells",
pages = "190-189",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6172"
}

Stefanović, M., Lukić, I., Vujančević, J., Petrović, R.,& Janaćković, Đ.. (2022). Improving the contact surface between TiO2 nanotubes and MAPbBr3 to make perovskite solar cells. in Second International conference ELMINA2022 Electron Microscopy of Nanostructures
Serbian Academy of Sciences and Arts., 189-190.
https://hdl.handle.net/21.15107/rcub_technorep_6172

Stefanović M, Lukić I, Vujančević J, Petrović R, Janaćković Đ. Improving the contact surface between TiO2 nanotubes and MAPbBr3 to make perovskite solar cells. in Second International conference ELMINA2022 Electron Microscopy of Nanostructures. 2022;:189-190.
https://hdl.handle.net/21.15107/rcub_technorep_6172 .

Stefanović, Milica, Lukić, Ivana, Vujančević, Jelena, Petrović, Rada, Janaćković, Đorđe, "Improving the contact surface between TiO2 nanotubes and MAPbBr3 to make perovskite solar cells" in Second International conference ELMINA2022 Electron Microscopy of Nanostructures (2022):189-190,
https://hdl.handle.net/21.15107/rcub_technorep_6172 .

TY  - CONF
AU  - Matić, Tamara
AU  - Zebić, Maja L.
AU  - Miletić, Vesna
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
AU  - Veljović, Đorđe
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6674
AB  - Tooth caries presents one of the most common diseases worldwide, and its treatment involves
removal of the decayed tooth structure, and the cavity restoration using restorative dental materials. Resin based composites (RBCs) are the most commonly used restorative material in practice owing to their great aesthetic appearance allowing the clinicians to adapt the nuance of the restoration to the patient’s tooth color. However, the RBCs harden by the polymerization of monomers that leads to the polymerization shrinkage of the restoration, leaving the micro-gaps at the teeth-restorations interface which allows the secondary caries formation.
PB  - Belgrade : Serbian Academy of Sciences and Arts
C3  - Program & Book of Abstracts / Second International Conference on Electron Microscopy of Nanostructures ELMINA 2022, August 22nd-26th Belgrade, Serbia
T1  - Hydroxyapatite-based Bioceramic Dental Inserts as Dentin Substitute
EP  - 151
SP  - 150
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6674
ER  - 

@conference{
author = "Matić, Tamara and Zebić, Maja L. and Miletić, Vesna and Petrović, Rada and Janaćković, Đorđe and Veljović, Đorđe",
year = "2022",
abstract = "Tooth caries presents one of the most common diseases worldwide, and its treatment involves
removal of the decayed tooth structure, and the cavity restoration using restorative dental materials. Resin based composites (RBCs) are the most commonly used restorative material in practice owing to their great aesthetic appearance allowing the clinicians to adapt the nuance of the restoration to the patient’s tooth color. However, the RBCs harden by the polymerization of monomers that leads to the polymerization shrinkage of the restoration, leaving the micro-gaps at the teeth-restorations interface which allows the secondary caries formation.",
publisher = "Belgrade : Serbian Academy of Sciences and Arts",
journal = "Program & Book of Abstracts / Second International Conference on Electron Microscopy of Nanostructures ELMINA 2022, August 22nd-26th Belgrade, Serbia",
title = "Hydroxyapatite-based Bioceramic Dental Inserts as Dentin Substitute",
pages = "151-150",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6674"
}

Matić, T., Zebić, M. L., Miletić, V., Petrović, R., Janaćković, Đ.,& Veljović, Đ.. (2022). Hydroxyapatite-based Bioceramic Dental Inserts as Dentin Substitute. in Program & Book of Abstracts / Second International Conference on Electron Microscopy of Nanostructures ELMINA 2022, August 22nd-26th Belgrade, Serbia
Belgrade : Serbian Academy of Sciences and Arts., 150-151.
https://hdl.handle.net/21.15107/rcub_technorep_6674

Matić T, Zebić ML, Miletić V, Petrović R, Janaćković Đ, Veljović Đ. Hydroxyapatite-based Bioceramic Dental Inserts as Dentin Substitute. in Program & Book of Abstracts / Second International Conference on Electron Microscopy of Nanostructures ELMINA 2022, August 22nd-26th Belgrade, Serbia. 2022;:150-151.
https://hdl.handle.net/21.15107/rcub_technorep_6674 .

Matić, Tamara, Zebić, Maja L., Miletić, Vesna, Petrović, Rada, Janaćković, Đorđe, Veljović, Đorđe, "Hydroxyapatite-based Bioceramic Dental Inserts as Dentin Substitute" in Program & Book of Abstracts / Second International Conference on Electron Microscopy of Nanostructures ELMINA 2022, August 22nd-26th Belgrade, Serbia (2022):150-151,
https://hdl.handle.net/21.15107/rcub_technorep_6674 .

TY  - CONF
AU  - Matić, Tamara
AU  - Zebić, Maja L.
AU  - Miletić, Vesna
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
AU  - Veljović, Đorđe
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6680
PB  - Belgrade : Institut za multidisciplinarna istraživanja
C3  - Programme and the Book of Abstracts / 6th Conference of The Serbian Society for Ceramic Materials, 6CSCS-2022, June 28-29, 2022, Belgrade, Serbia
T1  - THE INFLUENCE OF HYDROTHERMAL SYNTHESIS TEMPERATURE OF MAGNESIUM DOPED HYDROXYAPATITE ON ITS APPLICATION AS DENTIN SUBSTITUTE
EP  - 37
SP  - 36
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6680
ER  - 

@conference{
author = "Matić, Tamara and Zebić, Maja L. and Miletić, Vesna and Petrović, Rada and Janaćković, Đorđe and Veljović, Đorđe",
year = "2022",
publisher = "Belgrade : Institut za multidisciplinarna istraživanja",
journal = "Programme and the Book of Abstracts / 6th Conference of The Serbian Society for Ceramic Materials, 6CSCS-2022, June 28-29, 2022, Belgrade, Serbia",
title = "THE INFLUENCE OF HYDROTHERMAL SYNTHESIS TEMPERATURE OF MAGNESIUM DOPED HYDROXYAPATITE ON ITS APPLICATION AS DENTIN SUBSTITUTE",
pages = "37-36",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6680"
}

Matić, T., Zebić, M. L., Miletić, V., Petrović, R., Janaćković, Đ.,& Veljović, Đ.. (2022). THE INFLUENCE OF HYDROTHERMAL SYNTHESIS TEMPERATURE OF MAGNESIUM DOPED HYDROXYAPATITE ON ITS APPLICATION AS DENTIN SUBSTITUTE. in Programme and the Book of Abstracts / 6th Conference of The Serbian Society for Ceramic Materials, 6CSCS-2022, June 28-29, 2022, Belgrade, Serbia
Belgrade : Institut za multidisciplinarna istraživanja., 36-37.
https://hdl.handle.net/21.15107/rcub_technorep_6680

Matić T, Zebić ML, Miletić V, Petrović R, Janaćković Đ, Veljović Đ. THE INFLUENCE OF HYDROTHERMAL SYNTHESIS TEMPERATURE OF MAGNESIUM DOPED HYDROXYAPATITE ON ITS APPLICATION AS DENTIN SUBSTITUTE. in Programme and the Book of Abstracts / 6th Conference of The Serbian Society for Ceramic Materials, 6CSCS-2022, June 28-29, 2022, Belgrade, Serbia. 2022;:36-37.
https://hdl.handle.net/21.15107/rcub_technorep_6680 .

Matić, Tamara, Zebić, Maja L., Miletić, Vesna, Petrović, Rada, Janaćković, Đorđe, Veljović, Đorđe, "THE INFLUENCE OF HYDROTHERMAL SYNTHESIS TEMPERATURE OF MAGNESIUM DOPED HYDROXYAPATITE ON ITS APPLICATION AS DENTIN SUBSTITUTE" in Programme and the Book of Abstracts / 6th Conference of The Serbian Society for Ceramic Materials, 6CSCS-2022, June 28-29, 2022, Belgrade, Serbia (2022):36-37,
https://hdl.handle.net/21.15107/rcub_technorep_6680 .

TY  - CONF
AU  - Obradović, Bojana
AU  - Stojkovska, Jasmina
AU  - Radovanović, Željko
AU  - Matić, Tamara
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
AU  - Veljović, Đorđe
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6682
AB  - Biomaterials engineering is one of the strongest research areas at the Faculty of Technology and Metallurgy (FTM), University of Belgrade including development of novel biomaterials for orthopaedic and dental applications. Especially, synthesis and physico-chemical characterization methods are well established resulting in variety of novel inorganic, polymer and composite biomaterials produced in different forms with controlled compositions and structures. Still, expertise in further advancement of the research results towards utilization in medical devices is lacking. The ExcellMater Horizon 2020 project aims to further advance the scientific and technological capacity of the Faculty in this area by twinning the knowledge from the three European partners, internationally leading institutions, with recognized expertise in biological characterization methods, intellectual property protection and utilization, evaluation of health technologies and regulatory aspects of medical devices. The aim of the project is also to increase visibility of scientific research and enhance collaboration of engineers at FTM with life scientists, medical doctors and pharmacists as well as with industry. Here, we will present some of the novel bioceramic and composite biomaterials developed at FTM aimed for potential applications in orthopaedics, dentistry, bone tissue engineering, and cancer research.
PB  - Consiglio Nazionale delle Ricerche Istituto di Struttura della Materia
C3  - Conference proceedings / 3rd biennial International Conference: Biomaterials and novel technologies for healthcare BIOMAH, October 18-21, 2022 Rome – Italy
T1  - The ExcellMater project for advancement of novel bioceramic and composite biomaterials for medical applications
EP  - 197
SP  - 196
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6682
ER  - 

@conference{
author = "Obradović, Bojana and Stojkovska, Jasmina and Radovanović, Željko and Matić, Tamara and Petrović, Rada and Janaćković, Đorđe and Veljović, Đorđe",
year = "2022",
abstract = "Biomaterials engineering is one of the strongest research areas at the Faculty of Technology and Metallurgy (FTM), University of Belgrade including development of novel biomaterials for orthopaedic and dental applications. Especially, synthesis and physico-chemical characterization methods are well established resulting in variety of novel inorganic, polymer and composite biomaterials produced in different forms with controlled compositions and structures. Still, expertise in further advancement of the research results towards utilization in medical devices is lacking. The ExcellMater Horizon 2020 project aims to further advance the scientific and technological capacity of the Faculty in this area by twinning the knowledge from the three European partners, internationally leading institutions, with recognized expertise in biological characterization methods, intellectual property protection and utilization, evaluation of health technologies and regulatory aspects of medical devices. The aim of the project is also to increase visibility of scientific research and enhance collaboration of engineers at FTM with life scientists, medical doctors and pharmacists as well as with industry. Here, we will present some of the novel bioceramic and composite biomaterials developed at FTM aimed for potential applications in orthopaedics, dentistry, bone tissue engineering, and cancer research.",
publisher = "Consiglio Nazionale delle Ricerche Istituto di Struttura della Materia",
journal = "Conference proceedings / 3rd biennial International Conference: Biomaterials and novel technologies for healthcare BIOMAH, October 18-21, 2022 Rome – Italy",
title = "The ExcellMater project for advancement of novel bioceramic and composite biomaterials for medical applications",
pages = "197-196",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6682"
}

Obradović, B., Stojkovska, J., Radovanović, Ž., Matić, T., Petrović, R., Janaćković, Đ.,& Veljović, Đ.. (2022). The ExcellMater project for advancement of novel bioceramic and composite biomaterials for medical applications. in Conference proceedings / 3rd biennial International Conference: Biomaterials and novel technologies for healthcare BIOMAH, October 18-21, 2022 Rome – Italy
Consiglio Nazionale delle Ricerche Istituto di Struttura della Materia., 196-197.
https://hdl.handle.net/21.15107/rcub_technorep_6682

Obradović B, Stojkovska J, Radovanović Ž, Matić T, Petrović R, Janaćković Đ, Veljović Đ. The ExcellMater project for advancement of novel bioceramic and composite biomaterials for medical applications. in Conference proceedings / 3rd biennial International Conference: Biomaterials and novel technologies for healthcare BIOMAH, October 18-21, 2022 Rome – Italy. 2022;:196-197.
https://hdl.handle.net/21.15107/rcub_technorep_6682 .

Obradović, Bojana, Stojkovska, Jasmina, Radovanović, Željko, Matić, Tamara, Petrović, Rada, Janaćković, Đorđe, Veljović, Đorđe, "The ExcellMater project for advancement of novel bioceramic and composite biomaterials for medical applications" in Conference proceedings / 3rd biennial International Conference: Biomaterials and novel technologies for healthcare BIOMAH, October 18-21, 2022 Rome – Italy (2022):196-197,
https://hdl.handle.net/21.15107/rcub_technorep_6682 .