TY  - JOUR
AU  - Maletić, Marina M.
AU  - Kalijadis, Ana M.
AU  - Lazović, Vladimir
AU  - Trifunović, Snežana
AU  - Babić, Biljana M.
AU  - Dapčević, Aleksandra
AU  - Kovač, Janez
AU  - Vukčević, Marija M.
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5963
AB  - Abstract: N-doped TiO2/carbon composites (TiO2/CN) with different nitrogen content, were obtained starting from titanium isopropoxide and glucose, and by varying the amount of melamine, added to starting reaction mixture. For comparison, an undoped sample (TiO2/C) was also prepared. Structural and surface characteristics were determined through scanning electron microscopy, thermogravimetric analysis, elemental analysis, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction and nitrogen adsorption–desorption isotherms. The photocatalytic activity of TiO2/CN composites was examined via photocatalytic degradation of methylene blue and multiclass pharmaceuticals from water solution. It was found that N doping of TiO2/carbon composites induced changes in structural and surface characteristics of TiO2/CN composites, improving their adsorption, but decreasing photocatalytic efficiency. Nevertheless, TiO2/CN0.05 composite obtained by the hydrothermal synthesis in the presence of glucose and 0.05 g melamine showed the highest efficiency for removing selected pharmaceuticals and methylene blue from aqueous solutions through the combined processes of adsorption in the dark, and photocatalytic degradation under UV and visible irradiation.
T2  - Journal of the Serbian Chemical Society
T1  - Influence of N doping on structural and photocatalytic properties of hydrothermally synthesized TiO2/carbon composites
EP  - 197
IS  - 2
SP  - 183
VL  - 88
DO  - 10.2298/JSC220608079M
ER  - 

@article{
author = "Maletić, Marina M. and Kalijadis, Ana M. and Lazović, Vladimir and Trifunović, Snežana and Babić, Biljana M. and Dapčević, Aleksandra and Kovač, Janez and Vukčević, Marija M.",
year = "2023",
abstract = "Abstract: N-doped TiO2/carbon composites (TiO2/CN) with different nitrogen content, were obtained starting from titanium isopropoxide and glucose, and by varying the amount of melamine, added to starting reaction mixture. For comparison, an undoped sample (TiO2/C) was also prepared. Structural and surface characteristics were determined through scanning electron microscopy, thermogravimetric analysis, elemental analysis, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction and nitrogen adsorption–desorption isotherms. The photocatalytic activity of TiO2/CN composites was examined via photocatalytic degradation of methylene blue and multiclass pharmaceuticals from water solution. It was found that N doping of TiO2/carbon composites induced changes in structural and surface characteristics of TiO2/CN composites, improving their adsorption, but decreasing photocatalytic efficiency. Nevertheless, TiO2/CN0.05 composite obtained by the hydrothermal synthesis in the presence of glucose and 0.05 g melamine showed the highest efficiency for removing selected pharmaceuticals and methylene blue from aqueous solutions through the combined processes of adsorption in the dark, and photocatalytic degradation under UV and visible irradiation.",
journal = "Journal of the Serbian Chemical Society",
title = "Influence of N doping on structural and photocatalytic properties of hydrothermally synthesized TiO2/carbon composites",
pages = "197-183",
number = "2",
volume = "88",
doi = "10.2298/JSC220608079M"
}

Maletić, M. M., Kalijadis, A. M., Lazović, V., Trifunović, S., Babić, B. M., Dapčević, A., Kovač, J.,& Vukčević, M. M.. (2023). Influence of N doping on structural and photocatalytic properties of hydrothermally synthesized TiO2/carbon composites. in Journal of the Serbian Chemical Society, 88(2), 183-197.
https://doi.org/10.2298/JSC220608079M

Maletić MM, Kalijadis AM, Lazović V, Trifunović S, Babić BM, Dapčević A, Kovač J, Vukčević MM. Influence of N doping on structural and photocatalytic properties of hydrothermally synthesized TiO2/carbon composites. in Journal of the Serbian Chemical Society. 2023;88(2):183-197.
doi:10.2298/JSC220608079M .

Maletić, Marina M., Kalijadis, Ana M., Lazović, Vladimir, Trifunović, Snežana, Babić, Biljana M., Dapčević, Aleksandra, Kovač, Janez, Vukčević, Marija M., "Influence of N doping on structural and photocatalytic properties of hydrothermally synthesized TiO2/carbon composites" in Journal of the Serbian Chemical Society, 88, no. 2 (2023):183-197,
https://doi.org/10.2298/JSC220608079M . .

TY  - CONF
AU  - Milojković, Natalija
AU  - Simović, Bojana
AU  - Žunić, Milan
AU  - Radovanović, Lidija
AU  - Dapčević, Aleksandra
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7402
AB  - It is well known that titanium dioxide is usually used as a photocatalyst due to its nontoxicity, low cost, and stability. Conductive polymer, polypyrrole (PPy) is also appropriate for photocatalytic application being stable and easy to synthesize. The aim of this study was to obtain TiO2/PPy composites reaching higher photocatalytic efficiency compared to pure TiO2. Therefore, TiO2 was synthesized by the hydrothermal route, while PPy was obtained by the chemical oxidative polymerization method. TiO2/x% PPy nanocomposites (x = 0, 0.5, 1, 1.5, 3, 5 wt.%) were prepared by hand-mixing of powders in agate mortar for 30 min in order to find the optimal PPy content. Obtained materials were characterized by XRD, FTIR, TG/DSC, FESEM, and UV-Vis methods while their photocatalytic activity was estimated towards degradation of Reactive Orange 16 dye (RO16). A kinetic study was performed and a detailed mechanism of RO16 photocatalytic degradation in the presence of TiO2/PPy composites was proposed based on scavenger tests. The results showed that, despite PPy addition, TiO2 was present in anatase form in all samples with sufficiently small crystallites (around 26 nm) and preserved structure with no significant deviations in unit cell parameters. The band gap energy decreased with increasing of PPy content, from 3.14 eV for pure TiO2 to 2.94 eV for TiO2/5% PPy. All the obtained nanocomposites demonstrated higher photocatalytic activity than pure TiO2, whereby TiO2/1% PPy nanocomposite was the most efficient by degrading 99.6% of the dye for 105 min under simulated solar light. Therefore, the amount of 1 wt.% should be consider as optimal amount of PPy in a composite. It is established that the photodegradation of RO16 using TiO2/PPy nanocomposites follows pseudo-first kinetic order. RO16 photocatalytic degradation mechanism in the presence of TiO2/PPy nanocomposites can be well described by direct Z-scheme heterojunction which has never been reported for TiO2/PPy system.
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  - Photocatalytic degradation of Reactive Orange 16 dye using TiO2/PPy nanocomposites under simulated solar light
SP  - 87
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7402
ER  - 

@conference{
author = "Milojković, Natalija and Simović, Bojana and Žunić, Milan and Radovanović, Lidija and Dapčević, Aleksandra",
year = "2023",
abstract = "It is well known that titanium dioxide is usually used as a photocatalyst due to its nontoxicity, low cost, and stability. Conductive polymer, polypyrrole (PPy) is also appropriate for photocatalytic application being stable and easy to synthesize. The aim of this study was to obtain TiO2/PPy composites reaching higher photocatalytic efficiency compared to pure TiO2. Therefore, TiO2 was synthesized by the hydrothermal route, while PPy was obtained by the chemical oxidative polymerization method. TiO2/x% PPy nanocomposites (x = 0, 0.5, 1, 1.5, 3, 5 wt.%) were prepared by hand-mixing of powders in agate mortar for 30 min in order to find the optimal PPy content. Obtained materials were characterized by XRD, FTIR, TG/DSC, FESEM, and UV-Vis methods while their photocatalytic activity was estimated towards degradation of Reactive Orange 16 dye (RO16). A kinetic study was performed and a detailed mechanism of RO16 photocatalytic degradation in the presence of TiO2/PPy composites was proposed based on scavenger tests. The results showed that, despite PPy addition, TiO2 was present in anatase form in all samples with sufficiently small crystallites (around 26 nm) and preserved structure with no significant deviations in unit cell parameters. The band gap energy decreased with increasing of PPy content, from 3.14 eV for pure TiO2 to 2.94 eV for TiO2/5% PPy. All the obtained nanocomposites demonstrated higher photocatalytic activity than pure TiO2, whereby TiO2/1% PPy nanocomposite was the most efficient by degrading 99.6% of the dye for 105 min under simulated solar light. Therefore, the amount of 1 wt.% should be consider as optimal amount of PPy in a composite. It is established that the photodegradation of RO16 using TiO2/PPy nanocomposites follows pseudo-first kinetic order. RO16 photocatalytic degradation mechanism in the presence of TiO2/PPy nanocomposites can be well described by direct Z-scheme heterojunction which has never been reported for TiO2/PPy system.",
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 = "Photocatalytic degradation of Reactive Orange 16 dye using TiO2/PPy nanocomposites under simulated solar light",
pages = "87",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7402"
}

Milojković, N., Simović, B., Žunić, M., Radovanović, L.,& Dapčević, A.. (2023). Photocatalytic degradation of Reactive Orange 16 dye using TiO2/PPy nanocomposites under simulated solar light. 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., 87.
https://hdl.handle.net/21.15107/rcub_technorep_7402

Milojković N, Simović B, Žunić M, Radovanović L, Dapčević A. Photocatalytic degradation of Reactive Orange 16 dye using TiO2/PPy nanocomposites under simulated solar light. in Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad, Serbia. 2023;:87.
https://hdl.handle.net/21.15107/rcub_technorep_7402 .

Milojković, Natalija, Simović, Bojana, Žunić, Milan, Radovanović, Lidija, Dapčević, Aleksandra, "Photocatalytic degradation of Reactive Orange 16 dye using TiO2/PPy nanocomposites under simulated solar light" in Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad, Serbia (2023):87,
https://hdl.handle.net/21.15107/rcub_technorep_7402 .

TY  - CONF
AU  - Milojković, Natalija D.
AU  - Simović, Bojana M.
AU  - Žunić, Milan M.
AU  - Radovanović, Lidija D.
AU  - Dapčević, Aleksandra H.
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7403
AB  - Titan(IV)-oksid je jedan od najčešće korišćenih fotokatalizatora, dok za polipirol (PPy) postoje potvrde da je pogodan za ovu primenu. Cilj ovog rada bio je dobijanje kompozita TiO2/PPy sa boljom fotokatalitičkom aktivnosti u odnosu na TiO2. Kako bi se optimizovao sadržaj PPy u kompozitu, sintetisani su uzorci TiO2/x%PPy (x = 0, 0,5, 1, 1,5, 3, 5 mas.%), koji su okarakterisani TG/DTA, XRD, FTIR, FESEM i UV-Vis metodama, dok su njihova fotokatalitička svojstva ispitana kroz razgradnju tekstilne boje RO16. Nanokristalni TiO2 je dobijen u obliku anatasa veličine kristalita oko 2 nm, dok su izračunati parametri jedinične ćelije potvrdili da je kristalna struktura anatasa ostala nepromenjena nakon dodatka PPy. Gotovo svi uzorci (izuzev TiO2/3%PPy) su fotokatalitički aktivniji od TiO2, dok je TiO2/1%PPy pokazao najizraženiju fotokatalitičku aktivnost razgradivši 9 % boje nakon 75 min.
AB  - Titanium(IV) oxide is one of the most used photocatalysts while polypyrrole (PPy) is a promising material for photocatalytic application. The aim of this work was to obtain TiO2/PPy composites exhibiting higher photocatalytic activity than TiO2. In order to determine the optimal PPy content in a composite, TiO2/x%PPy (x = 0, 0.5, 1, 1.5, 3, 5 wt.%) samples were synthesized and characterized by TG/DTA, XRD, FTIR, FESEM and UV-Vis methods, while the photocatalytic behavior was examined towards the degradation of the textile dye RO16. Nanocrystalline TiO2 was obtained in anatase form with crystallite size around 26 nm and preserved anatase crystal structure despite the addition of PPy according to the calculated unit cell parameters. Almost all samples (except TiO2/3%PPy) showed better photocatalytic activity than TiO2 while the best photocatalytic activity was demonstrated by TiO2/1%PPy which degraded 98 % of the dye after 75 min.
PB  - Beograd : Srpsko hemijsko društvo = Serbian Chemical Society
C3  - Kratki izvodi radova ; Knjiga radova = Book of Abstracts ; Proceedings / 59. savetovanje Srpskog hemijskog društva, Novi Sad 1. i 2. jun 2023. godine = 59th meeting of the Serbian Chemical Society, Novi Sad, Serbia, June 1-2, 2023
T1  - Nanokompoziti TiO2/PPy za primenu u fotokatalizi
T1  - TiO2/PPy nanocomposites for photocatalytic application
SP  - 144
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7403
ER  - 

@conference{
author = "Milojković, Natalija D. and Simović, Bojana M. and Žunić, Milan M. and Radovanović, Lidija D. and Dapčević, Aleksandra H.",
year = "2023",
abstract = "Titan(IV)-oksid je jedan od najčešće korišćenih fotokatalizatora, dok za polipirol (PPy) postoje potvrde da je pogodan za ovu primenu. Cilj ovog rada bio je dobijanje kompozita TiO2/PPy sa boljom fotokatalitičkom aktivnosti u odnosu na TiO2. Kako bi se optimizovao sadržaj PPy u kompozitu, sintetisani su uzorci TiO2/x%PPy (x = 0, 0,5, 1, 1,5, 3, 5 mas.%), koji su okarakterisani TG/DTA, XRD, FTIR, FESEM i UV-Vis metodama, dok su njihova fotokatalitička svojstva ispitana kroz razgradnju tekstilne boje RO16. Nanokristalni TiO2 je dobijen u obliku anatasa veličine kristalita oko 2 nm, dok su izračunati parametri jedinične ćelije potvrdili da je kristalna struktura anatasa ostala nepromenjena nakon dodatka PPy. Gotovo svi uzorci (izuzev TiO2/3%PPy) su fotokatalitički aktivniji od TiO2, dok je TiO2/1%PPy pokazao najizraženiju fotokatalitičku aktivnost razgradivši 9 % boje nakon 75 min., Titanium(IV) oxide is one of the most used photocatalysts while polypyrrole (PPy) is a promising material for photocatalytic application. The aim of this work was to obtain TiO2/PPy composites exhibiting higher photocatalytic activity than TiO2. In order to determine the optimal PPy content in a composite, TiO2/x%PPy (x = 0, 0.5, 1, 1.5, 3, 5 wt.%) samples were synthesized and characterized by TG/DTA, XRD, FTIR, FESEM and UV-Vis methods, while the photocatalytic behavior was examined towards the degradation of the textile dye RO16. Nanocrystalline TiO2 was obtained in anatase form with crystallite size around 26 nm and preserved anatase crystal structure despite the addition of PPy according to the calculated unit cell parameters. Almost all samples (except TiO2/3%PPy) showed better photocatalytic activity than TiO2 while the best photocatalytic activity was demonstrated by TiO2/1%PPy which degraded 98 % of the dye after 75 min.",
publisher = "Beograd : Srpsko hemijsko društvo = Serbian Chemical Society",
journal = "Kratki izvodi radova ; Knjiga radova = Book of Abstracts ; Proceedings / 59. savetovanje Srpskog hemijskog društva, Novi Sad 1. i 2. jun 2023. godine = 59th meeting of the Serbian Chemical Society, Novi Sad, Serbia, June 1-2, 2023",
title = "Nanokompoziti TiO2/PPy za primenu u fotokatalizi, TiO2/PPy nanocomposites for photocatalytic application",
pages = "144",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7403"
}

Milojković, N. D., Simović, B. M., Žunić, M. M., Radovanović, L. D.,& Dapčević, A. H.. (2023). Nanokompoziti TiO2/PPy za primenu u fotokatalizi. in Kratki izvodi radova ; Knjiga radova = Book of Abstracts ; Proceedings / 59. savetovanje Srpskog hemijskog društva, Novi Sad 1. i 2. jun 2023. godine = 59th meeting of the Serbian Chemical Society, Novi Sad, Serbia, June 1-2, 2023
Beograd : Srpsko hemijsko društvo = Serbian Chemical Society., 144.
https://hdl.handle.net/21.15107/rcub_technorep_7403

Milojković ND, Simović BM, Žunić MM, Radovanović LD, Dapčević AH. Nanokompoziti TiO2/PPy za primenu u fotokatalizi. in Kratki izvodi radova ; Knjiga radova = Book of Abstracts ; Proceedings / 59. savetovanje Srpskog hemijskog društva, Novi Sad 1. i 2. jun 2023. godine = 59th meeting of the Serbian Chemical Society, Novi Sad, Serbia, June 1-2, 2023. 2023;:144.
https://hdl.handle.net/21.15107/rcub_technorep_7403 .

Milojković, Natalija D., Simović, Bojana M., Žunić, Milan M., Radovanović, Lidija D., Dapčević, Aleksandra H., "Nanokompoziti TiO2/PPy za primenu u fotokatalizi" in Kratki izvodi radova ; Knjiga radova = Book of Abstracts ; Proceedings / 59. savetovanje Srpskog hemijskog društva, Novi Sad 1. i 2. jun 2023. godine = 59th meeting of the Serbian Chemical Society, Novi Sad, Serbia, June 1-2, 2023 (2023):144,
https://hdl.handle.net/21.15107/rcub_technorep_7403 .

TY  - JOUR
AU  - Radovanović, Lidija
AU  - Radovanović, Željko
AU  - Simović, Bojana
AU  - Vasić, Milica V.
AU  - Balanč, Bojana
AU  - Dapčević, Aleksandra
AU  - Dramićanin, Miroslav D.
AU  - Rogan, Jelena
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5984
AB  - A biphasic [Mn(dipya)(H2O)4](tpht)/{[Zn(dipya)(tpht)]·H2O}n com­plex material, I (dipya = 2,2’-dipyridylamine, tpht2– = dianion of terephthalatic acid) was synthesized by ligand exchange reaction and characterized by XRPD and FTIR spectroscopy. A ZnO/ZnMn2O4 composite, II, has been prepared via thermal decomposition of I in an air atmosphere at 450 °C. XRPD, FTIR and FESEM analyses of II revealed the simultaneous presence of spherical nano­particles of wurtzite ZnO and elongated nanoparticles of spinel ZnMn2O4. The specific surface area of II was determined by the BET method, whereas the volume and average size of the mesopores were calculated in accordance with the BJH method. The measurements of the mean size, polydispersity index and zeta potential showed colloidal instability of II. Two band gap values of 2.4 and 3.3 eV were determined using UV–Vis diffuse reflectance spectroscopy, while the measurements of photoluminescence revealed that II is active in the blue region of the visible spectrum. Testing of composite II as a pigmentary material showed that it can be used for the colouring of a ceramic glaze.
AB  - Двофазни  [Mn(dipya)(H2O)4](tpht)/{[Zn(dipya)(tpht)]·H2O}n комплексни материјал, I,  (dipya  =  2,2’-дипиридиламин,  tpht2–  =  дианјон  1,4-бензендикарбоксилнекиселине) синтетисан је реакцијом измене лиганада и окарактерисан XRPD мeтoдоми FTIR спек-троскопијом. Композит ZnO/ZnMn2O4, II, добијен је термичком разградњом прекурcopa I у атмосфери ваздуха на  450  °C.  XRPD  мeтoдом,  FTIR  спектроскопијом и  FESEM  микроскопијом композита II утврђено је истовремено присуство сферних наночестица ZnO вирцитне структуре и издужених наночестица  ZnMn2O4 са структуром спинела. Специфична површина композита II одређена је BET методом, док су запремина и просечна величина мезопора израчунати у складу са  BJH  методом. Средња величина, индекс полидисперзије и цета потенцијал измерени су фотонском корелационом спектроскопијом и електрофоретским расејањем светлости и показали су нестабилност композита II. Вредности ширине забрањене зоне од  2,4  и  3,3  eV  одређене су  UV–Vis  дифузно-рефлексионом спектроскопијом, док су мерења фотолуминесценције показала да је композит II активан у плавој области видљивог дела спектра. Испитивање композита II као пигментног материјала показало је да се може користити за бојење керамичке глазуре.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Structure and properties of ZnO/ZnMn2O4 composite obtained by thermal decomposition of terephthalate precursor
T1  - Структура и својства композита ZnO/ZnMn2O4 добијеног термичком разградњом терефталат-прекурсора
EP  - 325
IS  - 3
SP  - 313
VL  - 88
DO  - 10.2298/JSC221102090R
ER  - 

@article{
author = "Radovanović, Lidija and Radovanović, Željko and Simović, Bojana and Vasić, Milica V. and Balanč, Bojana and Dapčević, Aleksandra and Dramićanin, Miroslav D. and Rogan, Jelena",
year = "2023",
abstract = "A biphasic [Mn(dipya)(H2O)4](tpht)/{[Zn(dipya)(tpht)]·H2O}n com­plex material, I (dipya = 2,2’-dipyridylamine, tpht2– = dianion of terephthalatic acid) was synthesized by ligand exchange reaction and characterized by XRPD and FTIR spectroscopy. A ZnO/ZnMn2O4 composite, II, has been prepared via thermal decomposition of I in an air atmosphere at 450 °C. XRPD, FTIR and FESEM analyses of II revealed the simultaneous presence of spherical nano­particles of wurtzite ZnO and elongated nanoparticles of spinel ZnMn2O4. The specific surface area of II was determined by the BET method, whereas the volume and average size of the mesopores were calculated in accordance with the BJH method. The measurements of the mean size, polydispersity index and zeta potential showed colloidal instability of II. Two band gap values of 2.4 and 3.3 eV were determined using UV–Vis diffuse reflectance spectroscopy, while the measurements of photoluminescence revealed that II is active in the blue region of the visible spectrum. Testing of composite II as a pigmentary material showed that it can be used for the colouring of a ceramic glaze., Двофазни  [Mn(dipya)(H2O)4](tpht)/{[Zn(dipya)(tpht)]·H2O}n комплексни материјал, I,  (dipya  =  2,2’-дипиридиламин,  tpht2–  =  дианјон  1,4-бензендикарбоксилнекиселине) синтетисан је реакцијом измене лиганада и окарактерисан XRPD мeтoдоми FTIR спек-троскопијом. Композит ZnO/ZnMn2O4, II, добијен је термичком разградњом прекурcopa I у атмосфери ваздуха на  450  °C.  XRPD  мeтoдом,  FTIR  спектроскопијом и  FESEM  микроскопијом композита II утврђено је истовремено присуство сферних наночестица ZnO вирцитне структуре и издужених наночестица  ZnMn2O4 са структуром спинела. Специфична површина композита II одређена је BET методом, док су запремина и просечна величина мезопора израчунати у складу са  BJH  методом. Средња величина, индекс полидисперзије и цета потенцијал измерени су фотонском корелационом спектроскопијом и електрофоретским расејањем светлости и показали су нестабилност композита II. Вредности ширине забрањене зоне од  2,4  и  3,3  eV  одређене су  UV–Vis  дифузно-рефлексионом спектроскопијом, док су мерења фотолуминесценције показала да је композит II активан у плавој области видљивог дела спектра. Испитивање композита II као пигментног материјала показало је да се може користити за бојење керамичке глазуре.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Structure and properties of ZnO/ZnMn2O4 composite obtained by thermal decomposition of terephthalate precursor, Структура и својства композита ZnO/ZnMn2O4 добијеног термичком разградњом терефталат-прекурсора",
pages = "325-313",
number = "3",
volume = "88",
doi = "10.2298/JSC221102090R"
}

Radovanović, L., Radovanović, Ž., Simović, B., Vasić, M. V., Balanč, B., Dapčević, A., Dramićanin, M. D.,& Rogan, J.. (2023). Structure and properties of ZnO/ZnMn2O4 composite obtained by thermal decomposition of terephthalate precursor. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 88(3), 313-325.
https://doi.org/10.2298/JSC221102090R

Radovanović L, Radovanović Ž, Simović B, Vasić MV, Balanč B, Dapčević A, Dramićanin MD, Rogan J. Structure and properties of ZnO/ZnMn2O4 composite obtained by thermal decomposition of terephthalate precursor. in Journal of the Serbian Chemical Society. 2023;88(3):313-325.
doi:10.2298/JSC221102090R .

Radovanović, Lidija, Radovanović, Željko, Simović, Bojana, Vasić, Milica V., Balanč, Bojana, Dapčević, Aleksandra, Dramićanin, Miroslav D., Rogan, Jelena, "Structure and properties of ZnO/ZnMn2O4 composite obtained by thermal decomposition of terephthalate precursor" in Journal of the Serbian Chemical Society, 88, no. 3 (2023):313-325,
https://doi.org/10.2298/JSC221102090R . .

TY  - JOUR
AU  - Stefanović, Ivan S.
AU  - Džunuzović, Jasna V.
AU  - Džunuzović, Enis S.
AU  - Stevanović, Sanja
AU  - Dapčević, Aleksandra
AU  - Savić, Sanja I.
AU  - Lama, Giuseppe C.
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5985
AB  - The influence of soft segment (SS) content on the properties of novel polyurethane networks (PUNs), prepared by a two-step polymerization in a solvent mixture, was investigated in this work. Hyperbranched polyester of the third pseudo generation (BH-30) was used as a crosslinker, and together with isophorone diisocyanate (IPDI) was applied to build hard segments (HS) in PUNs. On the other hand, SS of the prepared PUNs are based on polycaprolactone (PCL). The content of SS in PUNs varied from 10 to 50 wt%. The structural, thermal and mechanical properties, swelling behavior, as well as morphology of PUNs, were explored by various experimental methods. Performed investigations have shown that the use of BH-30 led to the emergence of relatively high crosslinking density and good mechanical properties, and that all features of PUNs significantly depend on the SS content. Higher PCL content caused presence of certain crystallinity, better thermal stability, more pronounced microphase separated morphology, but also lower degree of hydrogen bonding, crosslinking density and storage modulus of the prepared PUNs. The obtained results have shown that the properties of PUNs can be easily varied and customized to different practical needs.
PB  - Elsevier Ltd.
T2  - Materials Today Communications
T1  - The impact of the polycaprolactone content on the properties of polyurethane networks
SP  - 105721
VL  - 35
DO  - 10.1016/j.mtcomm.2023.105721
ER  - 

@article{
author = "Stefanović, Ivan S. and Džunuzović, Jasna V. and Džunuzović, Enis S. and Stevanović, Sanja and Dapčević, Aleksandra and Savić, Sanja I. and Lama, Giuseppe C.",
year = "2023",
abstract = "The influence of soft segment (SS) content on the properties of novel polyurethane networks (PUNs), prepared by a two-step polymerization in a solvent mixture, was investigated in this work. Hyperbranched polyester of the third pseudo generation (BH-30) was used as a crosslinker, and together with isophorone diisocyanate (IPDI) was applied to build hard segments (HS) in PUNs. On the other hand, SS of the prepared PUNs are based on polycaprolactone (PCL). The content of SS in PUNs varied from 10 to 50 wt%. The structural, thermal and mechanical properties, swelling behavior, as well as morphology of PUNs, were explored by various experimental methods. Performed investigations have shown that the use of BH-30 led to the emergence of relatively high crosslinking density and good mechanical properties, and that all features of PUNs significantly depend on the SS content. Higher PCL content caused presence of certain crystallinity, better thermal stability, more pronounced microphase separated morphology, but also lower degree of hydrogen bonding, crosslinking density and storage modulus of the prepared PUNs. The obtained results have shown that the properties of PUNs can be easily varied and customized to different practical needs.",
publisher = "Elsevier Ltd.",
journal = "Materials Today Communications",
title = "The impact of the polycaprolactone content on the properties of polyurethane networks",
pages = "105721",
volume = "35",
doi = "10.1016/j.mtcomm.2023.105721"
}

Stefanović, I. S., Džunuzović, J. V., Džunuzović, E. S., Stevanović, S., Dapčević, A., Savić, S. I.,& Lama, G. C.. (2023). The impact of the polycaprolactone content on the properties of polyurethane networks. in Materials Today Communications
Elsevier Ltd.., 35, 105721.
https://doi.org/10.1016/j.mtcomm.2023.105721

Stefanović IS, Džunuzović JV, Džunuzović ES, Stevanović S, Dapčević A, Savić SI, Lama GC. The impact of the polycaprolactone content on the properties of polyurethane networks. in Materials Today Communications. 2023;35:105721.
doi:10.1016/j.mtcomm.2023.105721 .

Stefanović, Ivan S., Džunuzović, Jasna V., Džunuzović, Enis S., Stevanović, Sanja, Dapčević, Aleksandra, Savić, Sanja I., Lama, Giuseppe C., "The impact of the polycaprolactone content on the properties of polyurethane networks" in Materials Today Communications, 35 (2023):105721,
https://doi.org/10.1016/j.mtcomm.2023.105721 . .

TY  - JOUR
AU  - Simović, Bojana
AU  - Radovanović, Željko
AU  - Branković, Goran
AU  - Dapčević, Aleksandra
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6363
AB  - In this work, in order to improve the photocatalytic efficiency of ZnO, the optimal CeO2 content in ZnO powders was determined by varying the quantity of CeO2 from 0 to 10 mol%. The structural, microstructural, optical, textural, and photocatalytic properties of the hydrothermally obtained ZnO and CeO2/ZnO nanocomposites have been investigated by using the XRPD, FESEM, HRTEM/SAED, BET, and UV–Vis techniques. Detailed characterization revealed that CeO2, having spherical nanodots of about 5 nm with a large surface area, was distributed onto the ZnO surface, whose crystallites displayed a bimodal distribution, from nano-to micro-crystals. The morphology of ZnO is a combination of nanograins and microrods that further makes a 3-D tie-like morphology. The nanocomposite containing 5 mol% of CeO2 showed about 30% better photocatalytic efficiency in the degradation of Reactive Orange 16 dye compared to other samples under simulated solar radiation. In addition, the kinetics and mechanism of photocatalytic degradation were also proposed based on the photocatalytic activity and scavenger tests.
PB  - Elsevier Ltd.
T2  - Materials Science in Semiconductor Processing
T1  - Hydrothermally synthesized CeO2/ZnO nanocomposite photocatalysts for the enhanced degradation of Reactive Orange 16 dye
SP  - 107542
VL  - 162
DO  - 10.1016/j.mssp.2023.107542
ER  - 

@article{
author = "Simović, Bojana and Radovanović, Željko and Branković, Goran and Dapčević, Aleksandra",
year = "2023",
abstract = "In this work, in order to improve the photocatalytic efficiency of ZnO, the optimal CeO2 content in ZnO powders was determined by varying the quantity of CeO2 from 0 to 10 mol%. The structural, microstructural, optical, textural, and photocatalytic properties of the hydrothermally obtained ZnO and CeO2/ZnO nanocomposites have been investigated by using the XRPD, FESEM, HRTEM/SAED, BET, and UV–Vis techniques. Detailed characterization revealed that CeO2, having spherical nanodots of about 5 nm with a large surface area, was distributed onto the ZnO surface, whose crystallites displayed a bimodal distribution, from nano-to micro-crystals. The morphology of ZnO is a combination of nanograins and microrods that further makes a 3-D tie-like morphology. The nanocomposite containing 5 mol% of CeO2 showed about 30% better photocatalytic efficiency in the degradation of Reactive Orange 16 dye compared to other samples under simulated solar radiation. In addition, the kinetics and mechanism of photocatalytic degradation were also proposed based on the photocatalytic activity and scavenger tests.",
publisher = "Elsevier Ltd.",
journal = "Materials Science in Semiconductor Processing",
title = "Hydrothermally synthesized CeO2/ZnO nanocomposite photocatalysts for the enhanced degradation of Reactive Orange 16 dye",
pages = "107542",
volume = "162",
doi = "10.1016/j.mssp.2023.107542"
}

Simović, B., Radovanović, Ž., Branković, G.,& Dapčević, A.. (2023). Hydrothermally synthesized CeO2/ZnO nanocomposite photocatalysts for the enhanced degradation of Reactive Orange 16 dye. in Materials Science in Semiconductor Processing
Elsevier Ltd.., 162, 107542.
https://doi.org/10.1016/j.mssp.2023.107542

Simović B, Radovanović Ž, Branković G, Dapčević A. Hydrothermally synthesized CeO2/ZnO nanocomposite photocatalysts for the enhanced degradation of Reactive Orange 16 dye. in Materials Science in Semiconductor Processing. 2023;162:107542.
doi:10.1016/j.mssp.2023.107542 .

Simović, Bojana, Radovanović, Željko, Branković, Goran, Dapčević, Aleksandra, "Hydrothermally synthesized CeO2/ZnO nanocomposite photocatalysts for the enhanced degradation of Reactive Orange 16 dye" in Materials Science in Semiconductor Processing, 162 (2023):107542,
https://doi.org/10.1016/j.mssp.2023.107542 . .

TY  - CONF
AU  - Rogan, Jelena
AU  - Radovanović, Lidija
AU  - Simović, Bojana
AU  - Radovanović, Željko
AU  - Mihajlovski, Katarina
AU  - Dapčević, Aleksandra
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7404
AB  - Zinc oxide nanoparticles (ZnO-NPs) have been a subject of numerous researches owing to their multifunctional properties in many applications, such as solar cells, UV light-emitting devices, gas sensors and photocatalysts. ZnO-NPs can be synthesized through various methods and their features can be tailored by shape and size, resulting in new applications relevant to their structural properties. The synthesis of ZnO-NPs via controlled thermal decomposition of the single-source precursors represents a novel synthetic methodology. The basic goal of this study was to investigate the influence of precursors on crystallite size and morphology of the resulting ZnO-NPs. Four structurally characterized Zn complexes with different benzenepolycarboxylato ligands [1] were used as precursors for investigation of photocatalytic and antimicrobial effects of thermally obtained ZnO-NPs. The XRPD and FESEM analysis of ZnO-NPs, prepared by thermolysis of Zn precursors at 450 °C in the air atmosphere, revealed hexagonal wurtzite structure (space group P63mc, a ≈ 3.25 and c ≈ 5.21 Å) with an average crystallite size in the range of 39–47 nm and similar morphology. The best photocatalytic activity for degradation of Reactive orange 16 dye has been observed for ZnO-NPs where crystallites form the smallest agglomerates. All obtained ZnO-NPs showed excellent inhibitory effect against Gram-positive bacteria Staphylococcus aureus and Gram-negative bacteria Escherichia coli.
PB  - Zagreb : Croatian Association of Crystallographers
C3  - Book of Abstracts / The European Powder Diffraction Conference EPDIC 17, Šibenik, Croatia, 31 May – 03 June 2022
T1  - Photocatalytic and antimicrobial effects of zinc oxide nanoparticles prepared by thermal decomposition of zinc benzenepolycarboxylato complexes
SP  - 127
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7404
ER  - 

@conference{
author = "Rogan, Jelena and Radovanović, Lidija and Simović, Bojana and Radovanović, Željko and Mihajlovski, Katarina and Dapčević, Aleksandra",
year = "2022",
abstract = "Zinc oxide nanoparticles (ZnO-NPs) have been a subject of numerous researches owing to their multifunctional properties in many applications, such as solar cells, UV light-emitting devices, gas sensors and photocatalysts. ZnO-NPs can be synthesized through various methods and their features can be tailored by shape and size, resulting in new applications relevant to their structural properties. The synthesis of ZnO-NPs via controlled thermal decomposition of the single-source precursors represents a novel synthetic methodology. The basic goal of this study was to investigate the influence of precursors on crystallite size and morphology of the resulting ZnO-NPs. Four structurally characterized Zn complexes with different benzenepolycarboxylato ligands [1] were used as precursors for investigation of photocatalytic and antimicrobial effects of thermally obtained ZnO-NPs. The XRPD and FESEM analysis of ZnO-NPs, prepared by thermolysis of Zn precursors at 450 °C in the air atmosphere, revealed hexagonal wurtzite structure (space group P63mc, a ≈ 3.25 and c ≈ 5.21 Å) with an average crystallite size in the range of 39–47 nm and similar morphology. The best photocatalytic activity for degradation of Reactive orange 16 dye has been observed for ZnO-NPs where crystallites form the smallest agglomerates. All obtained ZnO-NPs showed excellent inhibitory effect against Gram-positive bacteria Staphylococcus aureus and Gram-negative bacteria Escherichia coli.",
publisher = "Zagreb : Croatian Association of Crystallographers",
journal = "Book of Abstracts / The European Powder Diffraction Conference EPDIC 17, Šibenik, Croatia, 31 May – 03 June 2022",
title = "Photocatalytic and antimicrobial effects of zinc oxide nanoparticles prepared by thermal decomposition of zinc benzenepolycarboxylato complexes",
pages = "127",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7404"
}

Rogan, J., Radovanović, L., Simović, B., Radovanović, Ž., Mihajlovski, K.,& Dapčević, A.. (2022). Photocatalytic and antimicrobial effects of zinc oxide nanoparticles prepared by thermal decomposition of zinc benzenepolycarboxylato complexes. in Book of Abstracts / The European Powder Diffraction Conference EPDIC 17, Šibenik, Croatia, 31 May – 03 June 2022
Zagreb : Croatian Association of Crystallographers., 127.
https://hdl.handle.net/21.15107/rcub_technorep_7404

Rogan J, Radovanović L, Simović B, Radovanović Ž, Mihajlovski K, Dapčević A. Photocatalytic and antimicrobial effects of zinc oxide nanoparticles prepared by thermal decomposition of zinc benzenepolycarboxylato complexes. in Book of Abstracts / The European Powder Diffraction Conference EPDIC 17, Šibenik, Croatia, 31 May – 03 June 2022. 2022;:127.
https://hdl.handle.net/21.15107/rcub_technorep_7404 .

Rogan, Jelena, Radovanović, Lidija, Simović, Bojana, Radovanović, Željko, Mihajlovski, Katarina, Dapčević, Aleksandra, "Photocatalytic and antimicrobial effects of zinc oxide nanoparticles prepared by thermal decomposition of zinc benzenepolycarboxylato complexes" in Book of Abstracts / The European Powder Diffraction Conference EPDIC 17, Šibenik, Croatia, 31 May – 03 June 2022 (2022):127,
https://hdl.handle.net/21.15107/rcub_technorep_7404 .

TY  - JOUR
AU  - Malesevic, Aleksandar
AU  - Radojkovic, Aleksandar
AU  - Zunic, Milan
AU  - Dapčević, Aleksandra
AU  - Perac, Sanja
AU  - Branković, Zorica
AU  - Brankovic, Goran
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4993
AB  - The properties of BaCe1-xInxO3-delta (x = 0.05, 0.10, 0.15, 0.20, 0.25, 0.30, 0.35, and 0.40) as proton conducting electrolyte are examined. The dense electrolyte is formed after sintering at 1300 degrees C for 5 h in air. The samples with In content > 25 mol% contain In2O3 as a secondary phase. The highest total conductivity is around 5x10(-3) S/cm for BaCe0.75In0.25O3-delta in the wet hydrogen atmosphere at 700 degrees C. After exposure to pure CO2 atmosphere at 700 degrees C for 5 h, the concentrations of at least 15 mol% In can completely suppress degradation of the electrolyte. The power density of Ni-BaCe0.75In0.25O3-delta/BaCe0.75In0.25O3-delta/LSCF-BaCe0.75In0.25O3-delta fuel cell tested in wet hydrogen atmosphere reaches 264 mW/cm(2) at 700 degrees C. This result is an indication of stability and functionality of this electrolyte and its versatility in respect to type of fuel and performing environment.
T2  - Journal of Advanced Ceramics
T1  - Evaluation of stability and functionality of BaCe1-xInxO3-delta electrolyte in a wider range of indium concentration
EP  - 453
IS  - 3
SP  - 443
VL  - 11
DO  - 10.1007/s40145-021-0547-1
ER  - 

@article{
author = "Malesevic, Aleksandar and Radojkovic, Aleksandar and Zunic, Milan and Dapčević, Aleksandra and Perac, Sanja and Branković, Zorica and Brankovic, Goran",
year = "2022",
abstract = "The properties of BaCe1-xInxO3-delta (x = 0.05, 0.10, 0.15, 0.20, 0.25, 0.30, 0.35, and 0.40) as proton conducting electrolyte are examined. The dense electrolyte is formed after sintering at 1300 degrees C for 5 h in air. The samples with In content > 25 mol% contain In2O3 as a secondary phase. The highest total conductivity is around 5x10(-3) S/cm for BaCe0.75In0.25O3-delta in the wet hydrogen atmosphere at 700 degrees C. After exposure to pure CO2 atmosphere at 700 degrees C for 5 h, the concentrations of at least 15 mol% In can completely suppress degradation of the electrolyte. The power density of Ni-BaCe0.75In0.25O3-delta/BaCe0.75In0.25O3-delta/LSCF-BaCe0.75In0.25O3-delta fuel cell tested in wet hydrogen atmosphere reaches 264 mW/cm(2) at 700 degrees C. This result is an indication of stability and functionality of this electrolyte and its versatility in respect to type of fuel and performing environment.",
journal = "Journal of Advanced Ceramics",
title = "Evaluation of stability and functionality of BaCe1-xInxO3-delta electrolyte in a wider range of indium concentration",
pages = "453-443",
number = "3",
volume = "11",
doi = "10.1007/s40145-021-0547-1"
}

Malesevic, A., Radojkovic, A., Zunic, M., Dapčević, A., Perac, S., Branković, Z.,& Brankovic, G.. (2022). Evaluation of stability and functionality of BaCe1-xInxO3-delta electrolyte in a wider range of indium concentration. in Journal of Advanced Ceramics, 11(3), 443-453.
https://doi.org/10.1007/s40145-021-0547-1

Malesevic A, Radojkovic A, Zunic M, Dapčević A, Perac S, Branković Z, Brankovic G. Evaluation of stability and functionality of BaCe1-xInxO3-delta electrolyte in a wider range of indium concentration. in Journal of Advanced Ceramics. 2022;11(3):443-453.
doi:10.1007/s40145-021-0547-1 .

Malesevic, Aleksandar, Radojkovic, Aleksandar, Zunic, Milan, Dapčević, Aleksandra, Perac, Sanja, Branković, Zorica, Brankovic, Goran, "Evaluation of stability and functionality of BaCe1-xInxO3-delta electrolyte in a wider range of indium concentration" in Journal of Advanced Ceramics, 11, no. 3 (2022):443-453,
https://doi.org/10.1007/s40145-021-0547-1 . .

TY  - JOUR
AU  - Tasic, Nikola
AU  - Cirković, Jovana
AU  - Ribic, Vesna
AU  - Zunic, Milan
AU  - Dapčević, Aleksandra
AU  - Brankovic, Goran
AU  - Branković, Zorica
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4999
AB  - We present the synthesis and photocatalytic properties of mixed-phase TiO2 nanoparticles decorated with silver nanodots obtained by environmental-friendly wet chemical method using low molecular weight chitosan as the silver reducing agent. Structural analysis of synthesized Ag nanoparticles revealed that they crystallized in a rare hexagonal modification. High-resolution transmission electron microscopy study shows that   lt 3-nm hexagonal-Ag nanoparticles are implanted on the surface of   lt 20-nm anatase grains. Compared to Ag-free TiO2 powders, implantation with Ag results in important increase in visible light absorption. The photocatalytic activity of the samples was measured by monitoring decolorization of concentrated textile dye solution (50 mg L-1 of Reactive Orange 16) under simulated solar irradiation of 280 W m(-2). The optimum photocatalytic properties are achieved with 5 wt% of silver. Based on the collected results, the operating mechanism of the degradation process is suggested, and the effects of the silver addition are explained.
T2  - Journal of the American Ceramic Society
T1  - Effects of the silver nanodots on the photocatalytic activity of mixed-phase TiO2
EP  - 347
IS  - 1
SP  - 336
VL  - 105
DO  - 10.1111/jace.18059
ER  - 

@article{
author = "Tasic, Nikola and Cirković, Jovana and Ribic, Vesna and Zunic, Milan and Dapčević, Aleksandra and Brankovic, Goran and Branković, Zorica",
year = "2022",
abstract = "We present the synthesis and photocatalytic properties of mixed-phase TiO2 nanoparticles decorated with silver nanodots obtained by environmental-friendly wet chemical method using low molecular weight chitosan as the silver reducing agent. Structural analysis of synthesized Ag nanoparticles revealed that they crystallized in a rare hexagonal modification. High-resolution transmission electron microscopy study shows that   lt 3-nm hexagonal-Ag nanoparticles are implanted on the surface of   lt 20-nm anatase grains. Compared to Ag-free TiO2 powders, implantation with Ag results in important increase in visible light absorption. The photocatalytic activity of the samples was measured by monitoring decolorization of concentrated textile dye solution (50 mg L-1 of Reactive Orange 16) under simulated solar irradiation of 280 W m(-2). The optimum photocatalytic properties are achieved with 5 wt% of silver. Based on the collected results, the operating mechanism of the degradation process is suggested, and the effects of the silver addition are explained.",
journal = "Journal of the American Ceramic Society",
title = "Effects of the silver nanodots on the photocatalytic activity of mixed-phase TiO2",
pages = "347-336",
number = "1",
volume = "105",
doi = "10.1111/jace.18059"
}

Tasic, N., Cirković, J., Ribic, V., Zunic, M., Dapčević, A., Brankovic, G.,& Branković, Z.. (2022). Effects of the silver nanodots on the photocatalytic activity of mixed-phase TiO2. in Journal of the American Ceramic Society, 105(1), 336-347.
https://doi.org/10.1111/jace.18059

Tasic N, Cirković J, Ribic V, Zunic M, Dapčević A, Brankovic G, Branković Z. Effects of the silver nanodots on the photocatalytic activity of mixed-phase TiO2. in Journal of the American Ceramic Society. 2022;105(1):336-347.
doi:10.1111/jace.18059 .

Tasic, Nikola, Cirković, Jovana, Ribic, Vesna, Zunic, Milan, Dapčević, Aleksandra, Brankovic, Goran, Branković, Zorica, "Effects of the silver nanodots on the photocatalytic activity of mixed-phase TiO2" in Journal of the American Ceramic Society, 105, no. 1 (2022):336-347,
https://doi.org/10.1111/jace.18059 . .

TY  - JOUR
AU  - Stefanović, Ivan S.
AU  - Marković, Bojana M.
AU  - Nastasović, Aleksandra B.
AU  - Vuković, Zorica M.
AU  - Dapčević, Aleksandra
AU  - Pavlović, Vladimir B.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5174
AB  - The impact of the type and amounts of nanofiller on the features of the glycidyl methacrylate-co-ethylene glycol dimethacrylate (GMA-co-EGDMA)/organomodified montmorillonite (OMt) nanocomposites that were prepared by in situ radical suspension polymerization, was examined. Cloisite 30B and Cloisite 25A were used in this study as nanofillers, in amounts of 2 and 10 wt.%. The structure, morphology, thermal stability and porosity of the initial GMA-co-EGDMA copolymer and their nanocomposites were examined by ATR-FTIR analysis, wide angle X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), transmission electron microscopy (TEM), thermogravimetric analysis (TG) and mercury porosimetry. It has been established that both clay nanofillers were successfully incorporated into the structure of the initial copolymer, simultaneously on their surface and also on cross-sectional area. Prepared samples with 2 wt.% have predominantly exfoliated, while samples with 10 wt.% have some tactoids-aggregates structure of the OMt layers. Thermogravimetric analysis revealed that after ~ 30 % of degradation, all nanocomposites become more thermal stable than the initial copolymer. The obtained results indicate that porosity parameters can be easily modified with the addition of clay nanofillers and thus prepared nanocomposites adjusted to specific purposes. © 2022 Authors. Published by association for ETRAN Society.
T2  - Science of Sintering
T2  - Science of Sintering
T1  - Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites
EP  - 200
IS  - 2
SP  - 189
VL  - 54
DO  - 10.2298/SOS2202189S
ER  - 

@article{
author = "Stefanović, Ivan S. and Marković, Bojana M. and Nastasović, Aleksandra B. and Vuković, Zorica M. and Dapčević, Aleksandra and Pavlović, Vladimir B.",
year = "2022",
abstract = "The impact of the type and amounts of nanofiller on the features of the glycidyl methacrylate-co-ethylene glycol dimethacrylate (GMA-co-EGDMA)/organomodified montmorillonite (OMt) nanocomposites that were prepared by in situ radical suspension polymerization, was examined. Cloisite 30B and Cloisite 25A were used in this study as nanofillers, in amounts of 2 and 10 wt.%. The structure, morphology, thermal stability and porosity of the initial GMA-co-EGDMA copolymer and their nanocomposites were examined by ATR-FTIR analysis, wide angle X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), transmission electron microscopy (TEM), thermogravimetric analysis (TG) and mercury porosimetry. It has been established that both clay nanofillers were successfully incorporated into the structure of the initial copolymer, simultaneously on their surface and also on cross-sectional area. Prepared samples with 2 wt.% have predominantly exfoliated, while samples with 10 wt.% have some tactoids-aggregates structure of the OMt layers. Thermogravimetric analysis revealed that after ~ 30 % of degradation, all nanocomposites become more thermal stable than the initial copolymer. The obtained results indicate that porosity parameters can be easily modified with the addition of clay nanofillers and thus prepared nanocomposites adjusted to specific purposes. © 2022 Authors. Published by association for ETRAN Society.",
journal = "Science of Sintering, Science of Sintering",
title = "Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites",
pages = "200-189",
number = "2",
volume = "54",
doi = "10.2298/SOS2202189S"
}

Stefanović, I. S., Marković, B. M., Nastasović, A. B., Vuković, Z. M., Dapčević, A.,& Pavlović, V. B.. (2022). Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites. in Science of Sintering, 54(2), 189-200.
https://doi.org/10.2298/SOS2202189S

Stefanović IS, Marković BM, Nastasović AB, Vuković ZM, Dapčević A, Pavlović VB. Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites. in Science of Sintering. 2022;54(2):189-200.
doi:10.2298/SOS2202189S .

Stefanović, Ivan S., Marković, Bojana M., Nastasović, Aleksandra B., Vuković, Zorica M., Dapčević, Aleksandra, Pavlović, Vladimir B., "Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites" in Science of Sintering, 54, no. 2 (2022):189-200,
https://doi.org/10.2298/SOS2202189S . .

TY  - JOUR
AU  - Zemljak, Olivera
AU  - Golić Luković, Danijela
AU  - Počuča-Nešić, Milica
AU  - Dapčević, Aleksandra
AU  - Šenjug, Pavla
AU  - Pajić, Damir
AU  - Radošević, Tina
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5204
AB  - Yttrium manganite, YMnO3, was doped with different concentrations of titanium (x = 0, 0.04, 0.08, 0.10, 0.15, 0.20) in order to improve the microstructural and multiferroic properties. The powders were prepared using sol-gel polymerization complex method from citrate precursors. Depending on the titanium concentration, the hexagonal structure and/or the rhombohedral superstructure are present in the sintered samples. The YMn1–xTixO3+δ (x = 0.10, 0.15, 0.20) ceramic samples showed significantly reduced density of microcracks, and of inter- and intragranular pores, and relative densities greater than 90%. The structural parameters for YMn1–xTixO3+δ (x = 0, 0.10, 0.15) were correlated with the results of magnetic and ferroelectric measurements. The most of titanium-doped samples showed a reduction of the leakage current density in comparison with undoped YMnO3, and their ferroelectric responses were slightly improved. The modifications in structural arrangement resulted in partial suppression of ideal antiferromagnetic ordering visible through decrease of the Néel temperature and Weiss parameter, as well as the appearance of weak ferromagnetism and increase of magnetization (especially, in samples x = 0.08, 0.10, 0.15). These changes in physical quantities most likely originated from incorporation of the uncompensated magnetic moments and possible spin canting induced by enhanced symmetry break of the superexchange bridges.
PB  - Springer
T2  - Journal of Sol-Gel Science and Technology
T1  - Titanium doped yttrium manganite: improvement of microstructural properties and peculiarities of multiferroic properties
EP  - 819
IS  - 3
SP  - 807
VL  - 103
DO  - 10.1007/s10971-022-05872-3
ER  - 

@article{
author = "Zemljak, Olivera and Golić Luković, Danijela and Počuča-Nešić, Milica and Dapčević, Aleksandra and Šenjug, Pavla and Pajić, Damir and Radošević, Tina and Branković, Goran and Branković, Zorica",
year = "2022",
abstract = "Yttrium manganite, YMnO3, was doped with different concentrations of titanium (x = 0, 0.04, 0.08, 0.10, 0.15, 0.20) in order to improve the microstructural and multiferroic properties. The powders were prepared using sol-gel polymerization complex method from citrate precursors. Depending on the titanium concentration, the hexagonal structure and/or the rhombohedral superstructure are present in the sintered samples. The YMn1–xTixO3+δ (x = 0.10, 0.15, 0.20) ceramic samples showed significantly reduced density of microcracks, and of inter- and intragranular pores, and relative densities greater than 90%. The structural parameters for YMn1–xTixO3+δ (x = 0, 0.10, 0.15) were correlated with the results of magnetic and ferroelectric measurements. The most of titanium-doped samples showed a reduction of the leakage current density in comparison with undoped YMnO3, and their ferroelectric responses were slightly improved. The modifications in structural arrangement resulted in partial suppression of ideal antiferromagnetic ordering visible through decrease of the Néel temperature and Weiss parameter, as well as the appearance of weak ferromagnetism and increase of magnetization (especially, in samples x = 0.08, 0.10, 0.15). These changes in physical quantities most likely originated from incorporation of the uncompensated magnetic moments and possible spin canting induced by enhanced symmetry break of the superexchange bridges.",
publisher = "Springer",
journal = "Journal of Sol-Gel Science and Technology",
title = "Titanium doped yttrium manganite: improvement of microstructural properties and peculiarities of multiferroic properties",
pages = "819-807",
number = "3",
volume = "103",
doi = "10.1007/s10971-022-05872-3"
}

Zemljak, O., Golić Luković, D., Počuča-Nešić, M., Dapčević, A., Šenjug, P., Pajić, D., Radošević, T., Branković, G.,& Branković, Z.. (2022). Titanium doped yttrium manganite: improvement of microstructural properties and peculiarities of multiferroic properties. in Journal of Sol-Gel Science and Technology
Springer., 103(3), 807-819.
https://doi.org/10.1007/s10971-022-05872-3

Zemljak O, Golić Luković D, Počuča-Nešić M, Dapčević A, Šenjug P, Pajić D, Radošević T, Branković G, Branković Z. Titanium doped yttrium manganite: improvement of microstructural properties and peculiarities of multiferroic properties. in Journal of Sol-Gel Science and Technology. 2022;103(3):807-819.
doi:10.1007/s10971-022-05872-3 .

Zemljak, Olivera, Golić Luković, Danijela, Počuča-Nešić, Milica, Dapčević, Aleksandra, Šenjug, Pavla, Pajić, Damir, Radošević, Tina, Branković, Goran, Branković, Zorica, "Titanium doped yttrium manganite: improvement of microstructural properties and peculiarities of multiferroic properties" in Journal of Sol-Gel Science and Technology, 103, no. 3 (2022):807-819,
https://doi.org/10.1007/s10971-022-05872-3 . .

TY  - CONF
AU  - Milojković, Natalija
AU  - Orlić, Marina
AU  - Dikić, Jelena
AU  - Zunic, Milan
AU  - Simović, Bojana
AU  - Dapčević, Aleksandra
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6478
AB  - Regarding enormous expansion of bacterial contamination as well as their increase resistivity to commonly used disinfectants, there is a great demand for antibacterial material, which will not be based on organic compounds. Among various inorganic substances, environmentally friendly, low-cost and chemically stable ZnO and TiO2 demonstrate considerable antibacterial activity.This work primarily focuses on idea of developing novel disinfectant based on both, ZnO and TiO2, which would integrate all the worthy properties of both oxides. For that matter, titanium(IV) butoxide was dissolved in a solution of zinc acetate following with the ammonia addition until pH value was 8.5. Half of the initial solution was hydrothermally treated, dried and calcined at 500 (H-ZnTi-500) and 800°C (H-ZnTi-800). Two other samples (ZnTi-500 and ZnTi-800) were obtained from the other half of the initial solution which was directly dried and calcined under the same conditions. The samples were characterized by XRD including Rietveld refinement, FESEMand TG/DTA. Antibacterial activity was examined towards Gram-positive S. aureus and Gram-negative E. coli .The results showed that only ZnTi-800 consisted of pure Zn2TiO4 (Fd-3m) while Zn TiO was the major phase in three other samples. In the case of samples calcined at 500 °C, traces of ZnO were found. H-ZnTi-800 contained three phases: Zn2TiO4, ZnO and Zn2Ti3O8 (P4332). Cubic Zn2TiO4 contains two cation sites: tetrahedrally coordinated Zn at 0,0,0 and octahedral site at 5/8,5/8,5/8 shared between Zn and Ti. The calculated a-parameters of all obtained Zn2TiO4 as well as Zn–O and Zn/Ti–O bond distances were independent of synthesis. At 500 °C nanocrystalline Zn2TiO4 were obtained with the crystallite sizes 26 and 71 nm for H-ZnTi-500 and ZnTi-500, respectively, while microcrystalline phases were obtained at 800 °C with the crystallite sizes larger than 110 nm. The soft agglomerates consisted of smaller particles were obtained at 500 °C comparing to samples at 800 °C having more compact agglomerates.The best antibacterial activity with high reduction in the number of bacteria cells (87.6 % of E. coli and 63.4 % of S. aureus) was exhibited by the ZnTi-500. It means that the purity of samples, crystallite size and softness of agglomerates, influence antibacterial activity and that optimal level of all factors should be reached since ZnTi-500 was almost pure with sufficiently small crystallites and soft agglomerates.
PB  - European Powder Diffraction Conference (17 ; 2022 ; Šibenik)
C3  - European Powder Diffraction Conference -ЕPDIC17, Šibenik, Croatia, Book of Abstracts
T1  - A novel disinfectant based on zinc orthotitanate
SP  - 206
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1969
ER  - 

@conference{
author = "Milojković, Natalija and Orlić, Marina and Dikić, Jelena and Zunic, Milan and Simović, Bojana and Dapčević, Aleksandra",
year = "2022",
abstract = "Regarding enormous expansion of bacterial contamination as well as their increase resistivity to commonly used disinfectants, there is a great demand for antibacterial material, which will not be based on organic compounds. Among various inorganic substances, environmentally friendly, low-cost and chemically stable ZnO and TiO2 demonstrate considerable antibacterial activity.This work primarily focuses on idea of developing novel disinfectant based on both, ZnO and TiO2, which would integrate all the worthy properties of both oxides. For that matter, titanium(IV) butoxide was dissolved in a solution of zinc acetate following with the ammonia addition until pH value was 8.5. Half of the initial solution was hydrothermally treated, dried and calcined at 500 (H-ZnTi-500) and 800°C (H-ZnTi-800). Two other samples (ZnTi-500 and ZnTi-800) were obtained from the other half of the initial solution which was directly dried and calcined under the same conditions. The samples were characterized by XRD including Rietveld refinement, FESEMand TG/DTA. Antibacterial activity was examined towards Gram-positive S. aureus and Gram-negative E. coli .The results showed that only ZnTi-800 consisted of pure Zn2TiO4 (Fd-3m) while Zn TiO was the major phase in three other samples. In the case of samples calcined at 500 °C, traces of ZnO were found. H-ZnTi-800 contained three phases: Zn2TiO4, ZnO and Zn2Ti3O8 (P4332). Cubic Zn2TiO4 contains two cation sites: tetrahedrally coordinated Zn at 0,0,0 and octahedral site at 5/8,5/8,5/8 shared between Zn and Ti. The calculated a-parameters of all obtained Zn2TiO4 as well as Zn–O and Zn/Ti–O bond distances were independent of synthesis. At 500 °C nanocrystalline Zn2TiO4 were obtained with the crystallite sizes 26 and 71 nm for H-ZnTi-500 and ZnTi-500, respectively, while microcrystalline phases were obtained at 800 °C with the crystallite sizes larger than 110 nm. The soft agglomerates consisted of smaller particles were obtained at 500 °C comparing to samples at 800 °C having more compact agglomerates.The best antibacterial activity with high reduction in the number of bacteria cells (87.6 % of E. coli and 63.4 % of S. aureus) was exhibited by the ZnTi-500. It means that the purity of samples, crystallite size and softness of agglomerates, influence antibacterial activity and that optimal level of all factors should be reached since ZnTi-500 was almost pure with sufficiently small crystallites and soft agglomerates.",
publisher = "European Powder Diffraction Conference (17 ; 2022 ; Šibenik)",
journal = "European Powder Diffraction Conference -ЕPDIC17, Šibenik, Croatia, Book of Abstracts",
title = "A novel disinfectant based on zinc orthotitanate",
pages = "206",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1969"
}

Milojković, N., Orlić, M., Dikić, J., Zunic, M., Simović, B.,& Dapčević, A.. (2022). A novel disinfectant based on zinc orthotitanate. in European Powder Diffraction Conference -ЕPDIC17, Šibenik, Croatia, Book of Abstracts
European Powder Diffraction Conference (17 ; 2022 ; Šibenik)., 206.
https://hdl.handle.net/21.15107/rcub_rimsi_1969

Milojković N, Orlić M, Dikić J, Zunic M, Simović B, Dapčević A. A novel disinfectant based on zinc orthotitanate. in European Powder Diffraction Conference -ЕPDIC17, Šibenik, Croatia, Book of Abstracts. 2022;:206.
https://hdl.handle.net/21.15107/rcub_rimsi_1969 .

Milojković, Natalija, Orlić, Marina, Dikić, Jelena, Zunic, Milan, Simović, Bojana, Dapčević, Aleksandra, "A novel disinfectant based on zinc orthotitanate" in European Powder Diffraction Conference -ЕPDIC17, Šibenik, Croatia, Book of Abstracts (2022):206,
https://hdl.handle.net/21.15107/rcub_rimsi_1969 .

TY  - JOUR
AU  - Pesic, Nikola
AU  - Dapčević, Aleksandra
AU  - Ivkovic, Branka
AU  - Kachrimanis, Kyriakos
AU  - Mitric, Miodrag
AU  - Ibric, Svetlana
AU  - Medarevic, Đorđe
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4805
AB  - In this study, four low molecular weight (LMW) excipients, tryptophan (TRY), phenylalanine (PHE), lysine (LYS) and saccharin (SAC) were evaluated as co-formers to generate co-amorphous systems (CAMS) by ball milling with carvedilol (CRV). Mixtures of CRV and LMW excipient in 1:0.5, 1:1 and 1:2 drug:excipient molar ratios were ball milled and analysed by powder X-ray diffraction (PXRD), differential scanning calorimetry (DSC), Fourier transform (FT-IR) infrared spectroscopy and dissolution testing. CAMS were formed by milling of a mixture of CRV with TRY in 1:2 M ratio and SAC in 1:1 M ratio, while amorphization of only CRV was achieved in other mixtures with SAC. In other samples containing TRY and PHE, milling resulted in partial amorphization, while LYS was the least suitable excipient for the amorphization of CRV. Unexpectedly, the highest supersaturation of CRV was achieved from samples containing CRV and LYS in 1:1 and 1:2 M ratios, despite the absence of a significant reduction in CRV crystallinity upon milling of these samples. Increase of hydrophobic surface area caused by milling of samples with TRY and PHE and agglomeration during dissolution testing of samples containing SAC are likely causes of poor dissolution performance of mixtures containing fully or partially amorphous CRV.
T2  - International Journal of Pharmaceutics
T1  - Potential application of low molecular weight excipients for amorphization and dissolution enhancement of carvedilol
VL  - 608
DO  - 10.1016/j.ijpharm.2021.121033
ER  - 

@article{
author = "Pesic, Nikola and Dapčević, Aleksandra and Ivkovic, Branka and Kachrimanis, Kyriakos and Mitric, Miodrag and Ibric, Svetlana and Medarevic, Đorđe",
year = "2021",
abstract = "In this study, four low molecular weight (LMW) excipients, tryptophan (TRY), phenylalanine (PHE), lysine (LYS) and saccharin (SAC) were evaluated as co-formers to generate co-amorphous systems (CAMS) by ball milling with carvedilol (CRV). Mixtures of CRV and LMW excipient in 1:0.5, 1:1 and 1:2 drug:excipient molar ratios were ball milled and analysed by powder X-ray diffraction (PXRD), differential scanning calorimetry (DSC), Fourier transform (FT-IR) infrared spectroscopy and dissolution testing. CAMS were formed by milling of a mixture of CRV with TRY in 1:2 M ratio and SAC in 1:1 M ratio, while amorphization of only CRV was achieved in other mixtures with SAC. In other samples containing TRY and PHE, milling resulted in partial amorphization, while LYS was the least suitable excipient for the amorphization of CRV. Unexpectedly, the highest supersaturation of CRV was achieved from samples containing CRV and LYS in 1:1 and 1:2 M ratios, despite the absence of a significant reduction in CRV crystallinity upon milling of these samples. Increase of hydrophobic surface area caused by milling of samples with TRY and PHE and agglomeration during dissolution testing of samples containing SAC are likely causes of poor dissolution performance of mixtures containing fully or partially amorphous CRV.",
journal = "International Journal of Pharmaceutics",
title = "Potential application of low molecular weight excipients for amorphization and dissolution enhancement of carvedilol",
volume = "608",
doi = "10.1016/j.ijpharm.2021.121033"
}

Pesic, N., Dapčević, A., Ivkovic, B., Kachrimanis, K., Mitric, M., Ibric, S.,& Medarevic, Đ.. (2021). Potential application of low molecular weight excipients for amorphization and dissolution enhancement of carvedilol. in International Journal of Pharmaceutics, 608.
https://doi.org/10.1016/j.ijpharm.2021.121033

Pesic N, Dapčević A, Ivkovic B, Kachrimanis K, Mitric M, Ibric S, Medarevic Đ. Potential application of low molecular weight excipients for amorphization and dissolution enhancement of carvedilol. in International Journal of Pharmaceutics. 2021;608.
doi:10.1016/j.ijpharm.2021.121033 .

Pesic, Nikola, Dapčević, Aleksandra, Ivkovic, Branka, Kachrimanis, Kyriakos, Mitric, Miodrag, Ibric, Svetlana, Medarevic, Đorđe, "Potential application of low molecular weight excipients for amorphization and dissolution enhancement of carvedilol" in International Journal of Pharmaceutics, 608 (2021),
https://doi.org/10.1016/j.ijpharm.2021.121033 . .

TY  - JOUR
AU  - Dapčević, Aleksandra
AU  - Radojkovic, A.
AU  - Zunic, M.
AU  - Pocuca-Nesic, M.
AU  - Milosevic, O.
AU  - Brankovic, G.
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4939
AB  - In this study, the possibility to stabilize O-2 ion conductors in Bi2O3-V2O5 system was investigated. Six pseudo-binary Bi2O3-V2O5 mixtures [3.50   lt x(V2O5)   lt 8.50 mol%] were thermally treated at 1000 degrees C for 1 h. The samples were characterized by XRD, HRTEM/SAED, DTA and EIS techniques. The high-temperature reaction between alpha Bi2O3 and V2O5 resulted in formation of microcrystalline single-phase specimens containing the phase based on delta-Bi2O3 if V2O5 content was >= 4.63 mol%. The obtained phases exhibited main diffraction peaks corresponding to the simple cubic delta-Bi2O3 (space group Fm-3m) but Rietveld refinement showed a threefold repeat on a simple cubic sublattice indicating that the true unit cell is 3x3x3 supercell. Within proposed supercell, the octahedrally coordinated V5+ ions fully occupy 4a Wyckoff position and partially occupy 32f. The Bi3+ ions are placed at the rest of 32f and at 24e and 48h with full occupation. In total, 22 % of anionic sites are vacant. The ionic conductivity of phase with the lowest dopant content, i.e. Bi103V5O167, amounts 0.283 S cm(-1) at 800 degrees C with the activation energy of 0.64(5) eV, which is comparable to the undoped delta-Bi2O3 known as the fastest ion conductor.
T2  - Science of Sintering
T1  - Fast Oxide-Ion Conductors in Bi2O3-V2O5 System: Bi108-xVxO162+x(x=4-9) with 3 x 3 x 3 Superstructure
EP  - 66
IS  - 1
SP  - 55
VL  - 53
DO  - 10.2298/SOS2101055D
ER  - 

@article{
author = "Dapčević, Aleksandra and Radojkovic, A. and Zunic, M. and Pocuca-Nesic, M. and Milosevic, O. and Brankovic, G.",
year = "2021",
abstract = "In this study, the possibility to stabilize O-2 ion conductors in Bi2O3-V2O5 system was investigated. Six pseudo-binary Bi2O3-V2O5 mixtures [3.50   lt x(V2O5)   lt 8.50 mol%] were thermally treated at 1000 degrees C for 1 h. The samples were characterized by XRD, HRTEM/SAED, DTA and EIS techniques. The high-temperature reaction between alpha Bi2O3 and V2O5 resulted in formation of microcrystalline single-phase specimens containing the phase based on delta-Bi2O3 if V2O5 content was >= 4.63 mol%. The obtained phases exhibited main diffraction peaks corresponding to the simple cubic delta-Bi2O3 (space group Fm-3m) but Rietveld refinement showed a threefold repeat on a simple cubic sublattice indicating that the true unit cell is 3x3x3 supercell. Within proposed supercell, the octahedrally coordinated V5+ ions fully occupy 4a Wyckoff position and partially occupy 32f. The Bi3+ ions are placed at the rest of 32f and at 24e and 48h with full occupation. In total, 22 % of anionic sites are vacant. The ionic conductivity of phase with the lowest dopant content, i.e. Bi103V5O167, amounts 0.283 S cm(-1) at 800 degrees C with the activation energy of 0.64(5) eV, which is comparable to the undoped delta-Bi2O3 known as the fastest ion conductor.",
journal = "Science of Sintering",
title = "Fast Oxide-Ion Conductors in Bi2O3-V2O5 System: Bi108-xVxO162+x(x=4-9) with 3 x 3 x 3 Superstructure",
pages = "66-55",
number = "1",
volume = "53",
doi = "10.2298/SOS2101055D"
}

Dapčević, A., Radojkovic, A., Zunic, M., Pocuca-Nesic, M., Milosevic, O.,& Brankovic, G.. (2021). Fast Oxide-Ion Conductors in Bi2O3-V2O5 System: Bi108-xVxO162+x(x=4-9) with 3 x 3 x 3 Superstructure. in Science of Sintering, 53(1), 55-66.
https://doi.org/10.2298/SOS2101055D

Dapčević A, Radojkovic A, Zunic M, Pocuca-Nesic M, Milosevic O, Brankovic G. Fast Oxide-Ion Conductors in Bi2O3-V2O5 System: Bi108-xVxO162+x(x=4-9) with 3 x 3 x 3 Superstructure. in Science of Sintering. 2021;53(1):55-66.
doi:10.2298/SOS2101055D .

Dapčević, Aleksandra, Radojkovic, A., Zunic, M., Pocuca-Nesic, M., Milosevic, O., Brankovic, G., "Fast Oxide-Ion Conductors in Bi2O3-V2O5 System: Bi108-xVxO162+x(x=4-9) with 3 x 3 x 3 Superstructure" in Science of Sintering, 53, no. 1 (2021):55-66,
https://doi.org/10.2298/SOS2101055D . .

TY  - JOUR
AU  - Marković, Bojana M.
AU  - Stefanović, Ivan S.
AU  - Nastasović, Aleksandra B.
AU  - Sandić, Zvjezdana P.
AU  - Suručić, Ljiljana T.
AU  - Dapčević, Aleksandra
AU  - Džunuzović, Jasna V.
AU  - Jagličić, Zvonko
AU  - Vuković, Zorica M.
AU  - Pavlović, Vladimir
AU  - Onjia, Antonije
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4950
AB  - A novel magnetic polymer/bentonite composite was prepared by suspension copolymerization of glycidyl methacrylate and ethylene glycol dimethacrylate in the presence of magnetic bentonite (MB-PGME) and functionalized with ethylene diamine and hexamethylene diamine (MB-PGME-ED and MB-PGME-HD). The obtained samples were characterized in terms of structure as well as thermal, magnetic and morphological properties. The sorption of rhenium (Re) and tungsten (W) from aqueous solution onto MB-PGME-ED and MB-PGME-HD was investigated considering their contact time and different initial ion concentration, giving possibility for usage of these composites as commercial sorbents. The sorption system follows the pseudo-second order and intraparticle diffusion kinetic models. The results indicated a better fit with the Freundlich isotherm model.
T2  - Science of Sintering
T1  - Novel Magnetic Polymer/bentonite Composite: Characterization and Application for Re(VII) and W(VI) Adsorption
EP  - 428
IS  - 4
SP  - 419
VL  - 53
DO  - 10.2298/SOS2104419M
ER  - 

@article{
author = "Marković, Bojana M. and Stefanović, Ivan S. and Nastasović, Aleksandra B. and Sandić, Zvjezdana P. and Suručić, Ljiljana T. and Dapčević, Aleksandra and Džunuzović, Jasna V. and Jagličić, Zvonko and Vuković, Zorica M. and Pavlović, Vladimir and Onjia, Antonije",
year = "2021",
abstract = "A novel magnetic polymer/bentonite composite was prepared by suspension copolymerization of glycidyl methacrylate and ethylene glycol dimethacrylate in the presence of magnetic bentonite (MB-PGME) and functionalized with ethylene diamine and hexamethylene diamine (MB-PGME-ED and MB-PGME-HD). The obtained samples were characterized in terms of structure as well as thermal, magnetic and morphological properties. The sorption of rhenium (Re) and tungsten (W) from aqueous solution onto MB-PGME-ED and MB-PGME-HD was investigated considering their contact time and different initial ion concentration, giving possibility for usage of these composites as commercial sorbents. The sorption system follows the pseudo-second order and intraparticle diffusion kinetic models. The results indicated a better fit with the Freundlich isotherm model.",
journal = "Science of Sintering",
title = "Novel Magnetic Polymer/bentonite Composite: Characterization and Application for Re(VII) and W(VI) Adsorption",
pages = "428-419",
number = "4",
volume = "53",
doi = "10.2298/SOS2104419M"
}

Marković, B. M., Stefanović, I. S., Nastasović, A. B., Sandić, Z. P., Suručić, L. T., Dapčević, A., Džunuzović, J. V., Jagličić, Z., Vuković, Z. M., Pavlović, V.,& Onjia, A.. (2021). Novel Magnetic Polymer/bentonite Composite: Characterization and Application for Re(VII) and W(VI) Adsorption. in Science of Sintering, 53(4), 419-428.
https://doi.org/10.2298/SOS2104419M

Marković BM, Stefanović IS, Nastasović AB, Sandić ZP, Suručić LT, Dapčević A, Džunuzović JV, Jagličić Z, Vuković ZM, Pavlović V, Onjia A. Novel Magnetic Polymer/bentonite Composite: Characterization and Application for Re(VII) and W(VI) Adsorption. in Science of Sintering. 2021;53(4):419-428.
doi:10.2298/SOS2104419M .

Marković, Bojana M., Stefanović, Ivan S., Nastasović, Aleksandra B., Sandić, Zvjezdana P., Suručić, Ljiljana T., Dapčević, Aleksandra, Džunuzović, Jasna V., Jagličić, Zvonko, Vuković, Zorica M., Pavlović, Vladimir, Onjia, Antonije, "Novel Magnetic Polymer/bentonite Composite: Characterization and Application for Re(VII) and W(VI) Adsorption" in Science of Sintering, 53, no. 4 (2021):419-428,
https://doi.org/10.2298/SOS2104419M . .

TY  - JOUR
AU  - Milovanović, Stoja
AU  - Djuris, Jelena
AU  - Dapčević, Aleksandra
AU  - Lučić-Škorić, Marija
AU  - Medarevic, Đorđe
AU  - Pavlovic, Stefan M.
AU  - Ibric, Svetlana
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4959
AB  - This study investigates pharmaceutical polymers (Soluplus((R)), HPMCAS, and Eudragit((R)) E100) and supercritical CO2-assisted process for preparation of floating valsartan delivery systems. Tested process (at pressure of 30 MPa and temperature of 100 degrees C during 2 h) enabled preparation of stable porous valsartan formulations which was confirmed with FESEM and mercury intrusion porosimetry analysis. The bulk density of obtained formulations was lower than 550 kg/m(3). FTIR, DSC, and PXRD analysis indicated that there was no chemical interaction between the drug and polymers and that amorphous solid dispersions were obtained. Formulations with Soluplus((R)) and HPMCAS retained its buoyancy in 0.1 M HCl for longer than 24 h, while formulation with Eudragit((R)) E100 retained its buoyancy up to 2 h. Controlled valsartan release was influenced by solubility of polymers in the tested release medium, which was confirmed by UV/VIS spectroscopy. The obtained results provided framework for further development of floating drug delivery system using an environmental friendly process.
T2  - Journal of Polymer Research
T1  - Preparation of floating polymer-valsartan delivery systems using supercritical CO2
IS  - 3
VL  - 28
DO  - 10.1007/s10965-021-02440-1
ER  - 

@article{
author = "Milovanović, Stoja and Djuris, Jelena and Dapčević, Aleksandra and Lučić-Škorić, Marija and Medarevic, Đorđe and Pavlovic, Stefan M. and Ibric, Svetlana",
year = "2021",
abstract = "This study investigates pharmaceutical polymers (Soluplus((R)), HPMCAS, and Eudragit((R)) E100) and supercritical CO2-assisted process for preparation of floating valsartan delivery systems. Tested process (at pressure of 30 MPa and temperature of 100 degrees C during 2 h) enabled preparation of stable porous valsartan formulations which was confirmed with FESEM and mercury intrusion porosimetry analysis. The bulk density of obtained formulations was lower than 550 kg/m(3). FTIR, DSC, and PXRD analysis indicated that there was no chemical interaction between the drug and polymers and that amorphous solid dispersions were obtained. Formulations with Soluplus((R)) and HPMCAS retained its buoyancy in 0.1 M HCl for longer than 24 h, while formulation with Eudragit((R)) E100 retained its buoyancy up to 2 h. Controlled valsartan release was influenced by solubility of polymers in the tested release medium, which was confirmed by UV/VIS spectroscopy. The obtained results provided framework for further development of floating drug delivery system using an environmental friendly process.",
journal = "Journal of Polymer Research",
title = "Preparation of floating polymer-valsartan delivery systems using supercritical CO2",
number = "3",
volume = "28",
doi = "10.1007/s10965-021-02440-1"
}

Milovanović, S., Djuris, J., Dapčević, A., Lučić-Škorić, M., Medarevic, Đ., Pavlovic, S. M.,& Ibric, S.. (2021). Preparation of floating polymer-valsartan delivery systems using supercritical CO2. in Journal of Polymer Research, 28(3).
https://doi.org/10.1007/s10965-021-02440-1

Milovanović S, Djuris J, Dapčević A, Lučić-Škorić M, Medarevic Đ, Pavlovic SM, Ibric S. Preparation of floating polymer-valsartan delivery systems using supercritical CO2. in Journal of Polymer Research. 2021;28(3).
doi:10.1007/s10965-021-02440-1 .

Milovanović, Stoja, Djuris, Jelena, Dapčević, Aleksandra, Lučić-Škorić, Marija, Medarevic, Đorđe, Pavlovic, Stefan M., Ibric, Svetlana, "Preparation of floating polymer-valsartan delivery systems using supercritical CO2" in Journal of Polymer Research, 28, no. 3 (2021),
https://doi.org/10.1007/s10965-021-02440-1 . .

TY  - JOUR
AU  - Stefanović, Ivan
AU  - Džunuzović, Jasna
AU  - Džunuzović, Enis
AU  - Dapčević, Aleksandra
AU  - Šešlija, Sanja
AU  - Balanč, Bojana
AU  - Dobrzyńska-Mizera, Monika
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4
AB  - This work was focused on the synthesis of polyurethane networks (PUNs) based on polycaprolactone (PCL) as soft segment (SS) and Boltorn (R) aliphatic hyperbranched polyester of the second pseudo generation and 4,4 '-diphenylmethane diisocyanate (MDI) as the parts of the hard segments (HS), by a two-step solution polymerization. In order to find the best ratio between HS and SS to achieve good thermal and mechanical properties, suitable hydrophobicity and morphology of the PUNs, various experimental analyses were conducted. The obtained results revealed that features of the PUNs highly depend on the PCL content. The increase in the PCL content leads to the increase in thermal stability, hydrophobicity and appearance of the microphase separation, but on the other side, it also leads to the decrease in storage modulus in the rubbery plateau, crosslinking density and glass transition temperatures of PUNs. This work shows that features of PUNs can be easily adjusted for a specific application by careful selection of the SS and HS ratio.
PB  - Springer, New York
T2  - Polymer Bulletin
T1  - Composition-property relationship of polyurethane networks based on polycaprolactone diol
EP  - 7128
SP  - 7103
VL  - 78
DO  - 10.1007/s00289-020-03473-0
ER  - 

@article{
author = "Stefanović, Ivan and Džunuzović, Jasna and Džunuzović, Enis and Dapčević, Aleksandra and Šešlija, Sanja and Balanč, Bojana and Dobrzyńska-Mizera, Monika",
year = "2021",
abstract = "This work was focused on the synthesis of polyurethane networks (PUNs) based on polycaprolactone (PCL) as soft segment (SS) and Boltorn (R) aliphatic hyperbranched polyester of the second pseudo generation and 4,4 '-diphenylmethane diisocyanate (MDI) as the parts of the hard segments (HS), by a two-step solution polymerization. In order to find the best ratio between HS and SS to achieve good thermal and mechanical properties, suitable hydrophobicity and morphology of the PUNs, various experimental analyses were conducted. The obtained results revealed that features of the PUNs highly depend on the PCL content. The increase in the PCL content leads to the increase in thermal stability, hydrophobicity and appearance of the microphase separation, but on the other side, it also leads to the decrease in storage modulus in the rubbery plateau, crosslinking density and glass transition temperatures of PUNs. This work shows that features of PUNs can be easily adjusted for a specific application by careful selection of the SS and HS ratio.",
publisher = "Springer, New York",
journal = "Polymer Bulletin",
title = "Composition-property relationship of polyurethane networks based on polycaprolactone diol",
pages = "7128-7103",
volume = "78",
doi = "10.1007/s00289-020-03473-0"
}

Stefanović, I., Džunuzović, J., Džunuzović, E., Dapčević, A., Šešlija, S., Balanč, B.,& Dobrzyńska-Mizera, M.. (2021). Composition-property relationship of polyurethane networks based on polycaprolactone diol. in Polymer Bulletin
Springer, New York., 78, 7103-7128.
https://doi.org/10.1007/s00289-020-03473-0

Stefanović I, Džunuzović J, Džunuzović E, Dapčević A, Šešlija S, Balanč B, Dobrzyńska-Mizera M. Composition-property relationship of polyurethane networks based on polycaprolactone diol. in Polymer Bulletin. 2021;78:7103-7128.
doi:10.1007/s00289-020-03473-0 .

Stefanović, Ivan, Džunuzović, Jasna, Džunuzović, Enis, Dapčević, Aleksandra, Šešlija, Sanja, Balanč, Bojana, Dobrzyńska-Mizera, Monika, "Composition-property relationship of polyurethane networks based on polycaprolactone diol" in Polymer Bulletin, 78 (2021):7103-7128,
https://doi.org/10.1007/s00289-020-03473-0 . .

TY  - JOUR
AU  - Vukašinović, Jelena
AU  - Počuča-Nešić, Milica
AU  - Luković-Golić, Danijela
AU  - Ribić, Vesna
AU  - Branković, Zorica
AU  - Savić, Slavica M.
AU  - Dapčević, Aleksandra
AU  - Bernik, Slavko
AU  - Podlogar, Matejka
AU  - Kocen, Matej
AU  - Rapljenović, Željko
AU  - Ivek, Tomislav
AU  - Lazović, Vladimir
AU  - Dojčinović, Biljana
AU  - Branković, Goran
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4403
AB  - Antimony doped barium-stannate dense ceramic materials were synthesized using spark plasma sintering technique out of mechanically activated precursor powders. The influence of various Sb concentrations (x = 0.00 - 0.10) on properties of BaSn1-xSbxO3 ceramics was investigated. Relative densities of prepared samples were in the range of (79-96) %. TEM analysis revealed the presence of many dislocations in undoped BaSnO3, and their significant reduction upon doping with Sb. All samples except BaSn0.92Sb0.08O3 exhibit non-linear I-U characteristic, typical for semiconductors with potential barrier at grain boundaries. Low angle grain boundaries found only in BaSn0.92Sb0.08O3 caused the loss of potential barrier at grain boundaries which was confirmed by AC impedance spectroscopy measurements. Consequently, BaSn0.92Sb0.08O3 showed the lowest electrical resistivity and linear I-U characteristic. UV-vis analysis confirmed the increasing of band gap (Burstein-Moss shift) values in all doped samples.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of the European Ceramic Society
T1  - The structural, electrical and optical properties of spark plasma sintered BaSn1-xSbxO3 ceramics
EP  - 5575
IS  - 15
SP  - 5566
VL  - 40
DO  - 10.1016/j.jeurceramsoc.2020.06.062
ER  - 

@article{
author = "Vukašinović, Jelena and Počuča-Nešić, Milica and Luković-Golić, Danijela and Ribić, Vesna and Branković, Zorica and Savić, Slavica M. and Dapčević, Aleksandra and Bernik, Slavko and Podlogar, Matejka and Kocen, Matej and Rapljenović, Željko and Ivek, Tomislav and Lazović, Vladimir and Dojčinović, Biljana and Branković, Goran",
year = "2020",
abstract = "Antimony doped barium-stannate dense ceramic materials were synthesized using spark plasma sintering technique out of mechanically activated precursor powders. The influence of various Sb concentrations (x = 0.00 - 0.10) on properties of BaSn1-xSbxO3 ceramics was investigated. Relative densities of prepared samples were in the range of (79-96) %. TEM analysis revealed the presence of many dislocations in undoped BaSnO3, and their significant reduction upon doping with Sb. All samples except BaSn0.92Sb0.08O3 exhibit non-linear I-U characteristic, typical for semiconductors with potential barrier at grain boundaries. Low angle grain boundaries found only in BaSn0.92Sb0.08O3 caused the loss of potential barrier at grain boundaries which was confirmed by AC impedance spectroscopy measurements. Consequently, BaSn0.92Sb0.08O3 showed the lowest electrical resistivity and linear I-U characteristic. UV-vis analysis confirmed the increasing of band gap (Burstein-Moss shift) values in all doped samples.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of the European Ceramic Society",
title = "The structural, electrical and optical properties of spark plasma sintered BaSn1-xSbxO3 ceramics",
pages = "5575-5566",
number = "15",
volume = "40",
doi = "10.1016/j.jeurceramsoc.2020.06.062"
}

Vukašinović, J., Počuča-Nešić, M., Luković-Golić, D., Ribić, V., Branković, Z., Savić, S. M., Dapčević, A., Bernik, S., Podlogar, M., Kocen, M., Rapljenović, Ž., Ivek, T., Lazović, V., Dojčinović, B.,& Branković, G.. (2020). The structural, electrical and optical properties of spark plasma sintered BaSn1-xSbxO3 ceramics. in Journal of the European Ceramic Society
Elsevier Sci Ltd, Oxford., 40(15), 5566-5575.
https://doi.org/10.1016/j.jeurceramsoc.2020.06.062

Vukašinović J, Počuča-Nešić M, Luković-Golić D, Ribić V, Branković Z, Savić SM, Dapčević A, Bernik S, Podlogar M, Kocen M, Rapljenović Ž, Ivek T, Lazović V, Dojčinović B, Branković G. The structural, electrical and optical properties of spark plasma sintered BaSn1-xSbxO3 ceramics. in Journal of the European Ceramic Society. 2020;40(15):5566-5575.
doi:10.1016/j.jeurceramsoc.2020.06.062 .

Vukašinović, Jelena, Počuča-Nešić, Milica, Luković-Golić, Danijela, Ribić, Vesna, Branković, Zorica, Savić, Slavica M., Dapčević, Aleksandra, Bernik, Slavko, Podlogar, Matejka, Kocen, Matej, Rapljenović, Željko, Ivek, Tomislav, Lazović, Vladimir, Dojčinović, Biljana, Branković, Goran, "The structural, electrical and optical properties of spark plasma sintered BaSn1-xSbxO3 ceramics" in Journal of the European Ceramic Society, 40, no. 15 (2020):5566-5575,
https://doi.org/10.1016/j.jeurceramsoc.2020.06.062 . .

TY  - JOUR
AU  - Maletić, Marina
AU  - Vukčević, Marija
AU  - Kalijadis, Ana
AU  - Janković-Častvan, Ivona
AU  - Dapčević, Aleksandra
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4095
AB  - TiO2/carbon composites were synthesized by hydrothermal carbonization, using titanium isopropoxide and glucose precursor solution to obtain composites with Ti/C molar ratios ranging from 0.05 to 0.30. Characterization of obtained composites was performed by thermogravimetric analysis, scanning electron microscopy, nitrogen adsorption-desorption isotherms, X-ray diffraction, UV-Vis diffuse reflectance spectroscopy and Fourier transform infrared spectroscopy. The possibility of using TiO2/carbon composites as photocatalysts for UV assisted degradation of methylene blue in aqueous solution and selected pharmaceuticals from multicomponent solution was examined. It was found that increase in the glucose concentration, i.e. increased carbon content, leads to the higher porosity and increase in the share of photocatalytically active anatase phase in obtained TiO2/carbon composites. Sample obtained from the most concentrated glucose solution (TiO2/HTC4), showed the superior photocatalytic activity under UV irradiation toward both methylene blue and selected pharmaceuticals. In addition, TiO2/HTC4 show high recycling ability with degradation ratio of methylene blue higher than 81% after five cycles. Also, TiO2/HTC4 is expected to be a promising candidate for photocatalytic processes using visible light.
PB  - Elsevier, Amsterdam
T2  - Arabian Journal of Chemistry
T1  - Hydrothermal synthesis of TiO2/carbon composites and their application for removal of organic pollutants
EP  - 4397
IS  - 8
SP  - 4388
VL  - 12
DO  - 10.1016/j.arabjc.2016.06.020
ER  - 

@article{
author = "Maletić, Marina and Vukčević, Marija and Kalijadis, Ana and Janković-Častvan, Ivona and Dapčević, Aleksandra and Laušević, Zoran and Laušević, Mila",
year = "2019",
abstract = "TiO2/carbon composites were synthesized by hydrothermal carbonization, using titanium isopropoxide and glucose precursor solution to obtain composites with Ti/C molar ratios ranging from 0.05 to 0.30. Characterization of obtained composites was performed by thermogravimetric analysis, scanning electron microscopy, nitrogen adsorption-desorption isotherms, X-ray diffraction, UV-Vis diffuse reflectance spectroscopy and Fourier transform infrared spectroscopy. The possibility of using TiO2/carbon composites as photocatalysts for UV assisted degradation of methylene blue in aqueous solution and selected pharmaceuticals from multicomponent solution was examined. It was found that increase in the glucose concentration, i.e. increased carbon content, leads to the higher porosity and increase in the share of photocatalytically active anatase phase in obtained TiO2/carbon composites. Sample obtained from the most concentrated glucose solution (TiO2/HTC4), showed the superior photocatalytic activity under UV irradiation toward both methylene blue and selected pharmaceuticals. In addition, TiO2/HTC4 show high recycling ability with degradation ratio of methylene blue higher than 81% after five cycles. Also, TiO2/HTC4 is expected to be a promising candidate for photocatalytic processes using visible light.",
publisher = "Elsevier, Amsterdam",
journal = "Arabian Journal of Chemistry",
title = "Hydrothermal synthesis of TiO2/carbon composites and their application for removal of organic pollutants",
pages = "4397-4388",
number = "8",
volume = "12",
doi = "10.1016/j.arabjc.2016.06.020"
}

Maletić, M., Vukčević, M., Kalijadis, A., Janković-Častvan, I., Dapčević, A., Laušević, Z.,& Laušević, M.. (2019). Hydrothermal synthesis of TiO2/carbon composites and their application for removal of organic pollutants. in Arabian Journal of Chemistry
Elsevier, Amsterdam., 12(8), 4388-4397.
https://doi.org/10.1016/j.arabjc.2016.06.020

Maletić M, Vukčević M, Kalijadis A, Janković-Častvan I, Dapčević A, Laušević Z, Laušević M. Hydrothermal synthesis of TiO2/carbon composites and their application for removal of organic pollutants. in Arabian Journal of Chemistry. 2019;12(8):4388-4397.
doi:10.1016/j.arabjc.2016.06.020 .

Maletić, Marina, Vukčević, Marija, Kalijadis, Ana, Janković-Častvan, Ivona, Dapčević, Aleksandra, Laušević, Zoran, Laušević, Mila, "Hydrothermal synthesis of TiO2/carbon composites and their application for removal of organic pollutants" in Arabian Journal of Chemistry, 12, no. 8 (2019):4388-4397,
https://doi.org/10.1016/j.arabjc.2016.06.020 . .

TY  - CONF
AU  - Radovanović, Lidija
AU  - Dapčević, Aleksandra
AU  - Rogan, Jelena
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6703
AB  - Reakcijom izmene liganada različitim metodama sinteze dobijeno je 22 ternarna
kompleksa elemenata d-bloka [Mn(II), Co(II), Ni(II), Cu(II) i Zn(II)] sa anjonima
aromatičnih polikarboksilnih kiselina (ftalne, izoftalne, tereftalne i piromelitne) kao
O,O-donorskim ligandima i aromatičnim N,N-donorskim ligandima kao što su
2,2'-dipiridilamin i 2,2'-bipirimidin [1–5]. Trinaest kompleksa sintetisano je u
monokristalnom obliku, dok su ostala jedinjenja mikrokristalna. Prema vrsti centralnog
atoma, u obliku monokristala dobijeno je pet Mn(II)-, dva Co(II)-, jedan Ni(II)-, dva
Cu(II)-, dva Zn(II)-kompleksa, kao i bimetalni Mn(II)–Cu(II)-kompleks. Kristalne
strukture ovih jedinjenja određene su rendgenskom strukturnom analizom. Strukturne
karakteristike kompleksa detaljno su opisane i međusobno su upoređene. Sintetisani
kompleksi ispitani su infracrvenom spektroskopijom (IC), a neki su dodatno podvrgnuti
kvantno-hemijskim proračunima, simultanoj termogravimetrijskoj, diferencijalnoj
termijskoj i diferencijalnoj skenirajućoj kalorimetrijskoj analizi (TG/DTA/DSC),
elementarnoj analizi, magnetnim merenjima na sobnoj i niskim temperaturama,
energetskoj disperzivnoj i atomskoj apsorpcionoj spektroskopiji (EDS i AAS) i merenju
fotoluminescencije. Za pojedine komplekse ispitana je i antimikrobna aktivnost. Na
osnovu rezultata IC-, ED- i AA-spektroskopije, elementarne i TG/DSC-analize,
magnetnih merenja i boje određene su formule mikrokristalnih kompleksa i
pretpostavljena je njihova struktura.
Kod kompleksa dobijenih u obliku monokristala razmatrani su parametri koji dovode
do strukturnih različitosti, kao što su dužine veza i uglovi, koordinacioni broj jona metala,
način koordinacije O,O- i N,N-donorskih liganada i uticaj nekovalentnih interakcija na
geometriju i pakovanje molekula [1–5]. Koordinacioni brojevi d-elemenata su različiti i
nalaze se u opsegu od 5 do 7. Kod većine kompleksa O,O-donorski ligandi imaju
mostovnu ulogu sa različitim načinima koordinacije COO–
-grupa, u rasponu od bis-
-monodentatnog do heksadentatnog vezivanja. Kod tri jedinjenja ovi ligandi nisu
koordinirani za jone metala, već učestvuju u građenju vodoničnih veza. Dobijeni
kompleksi su mononuklearni, binuklearni i polimerni, a supramolekulsko 3D
umrežavanje postiže se vodoničnim vezama i slabijim nekovalentnim interakcijama
(C–Hꞏꞏꞏπ, π-π, C–HꞏꞏꞏN i C–HꞏꞏꞏO) između 1D lanaca ili 2D slojeva.
Pretragom Kembričke kristalografske baze podataka utvrđene su orijentacije
COO–
-grupa kod benzen-dikarboksilat kompleksa [1]. Energije tri poziciona izomera
benzen-dikarboksilat-jona izračunate su pomoću Møller-Plesset perturbacione teorije drugog reda i tri hibridne HF/DFT metode sa 6-311G** baznim setom. Rezultati analiza
dekompozicije lokalnih molekulskih orbitala i prirodnih vezujućih orbitala pokazali su
odlično slaganje eksperimentalne i izračunate geometrije, čime je dokazano da je
planarna konformacija energetski najpovoljnija kod anjona tereftalne i izoftalne kiseline,
dok su kod anjona ftalne kiseline COO–
-grupe zarotirane i formiraju komplementarne
uglove u odnosu na benzenski prsten u najstabilnijoj konformaciji.
Termička stabilnost, magnetna, fotoluminescentna svojstva i antimikrobna aktivnost
pojedinih kompleksa detaljno su analizirani i povezani sa njihovim strukturnim
karakteristikama. Merenja magnetne susceptibilnosti pokazala su da većina ispitanih
kompleksa ima paramagnetna svojstva, sa izuzetkom jednog Co(II)-kompleksa kod kojeg
su nađene feromagnetne interakcije, što je dovedeno u vezu sa formiranjem lanaca
između molekula u kristalnom pakovanju. Ispitivanja fotoluminescencije
Zn(II)-kompleksa pokazala su da su ovi kompleksi optički aktivni, s tim da je najjači
intenzitet fotoluminescencije utvrđen za kompleks kod kojeg postoji veći broj
nekovalentnih interakcija u strukturi. Antimikrobna svojstva Zn(II)-kompleksa ispitana
su in vitro na Gram-pozitivne bakterije (Bacilus subtilis, Enterococcus faecalis, Listeria
monocytogenes i Staphylococcus aureus), Gram-negativne bakterije (Esherichia coli,
Pseudomonas aeruginosa i Salmonella enteritidis) i gljivicu Candida albicans i pokazano
je da Zn(II)-kompleks sa izoftalat-jonom ima najbolju aktivnost na bakterije Listeria
monocytogenes i Esherichia coli [2]. Diskutovana je veza između antimikrobne
aktivnosti kompleksa i njihovih kristalnih struktura.
AB  - A series of 22 d-block element complexes [Mn(II), Co(II), Ni(II), Cu(II) and Zn(II)]
containing anions of aromatic polycarboxylate acids (phthalic, isophthalic, terephthalic
and pyromellic) as O,O-donor ligands and aromatic N,N-donor ligands such as
2,2'-dipyridylamine and 2,2'-bipyrimidine, has been obtained by ligand exchange reaction
using different synthetic methods [1–5]. Thirteen complexes were obtained as single
crystals, while the others were microcrystalline. According to the type of central atom,
five Mn(II), two Co(II), one Ni(II), two Cu(II), two Zn(II) complexes, and bimetallic
Mn(II)–Cu(II) complex were synthesized in form of single crystals. The structures of
these compounds were determined by single-crystal X-ray analysis. Structural properties
of complexes were discussed in detail and compared. All complexes were characterized
by infrared (IR) spectroscopy, while some of them were also subjected to the quantumchemical calculations, simultaneous thermogravimetry, differential thermal analysis and
differential scanning calorimetry (TG/DTA/DSC analysis), elemental analysis, magnetic
measurements at room and low temperatures, energy-dispersive X-ray spectroscopy
(EDS), atomic absorption spectroscopy (AAS) and photoluminescence measurements.
Antimicrobial activity was also investigated for some complexes. Based on the results of
IR, EDS and AAS spectroscopy, elemental and TG/DSC analyses, magnetic
measurements and color, the formulae of microcrystalline complexes were determined
and the structures were assumed.
The parameters that affect structural diversities, such as bond lengths and angles, the
coordination number of metal ions, the coordination mode of O,O- and
N,N-donor ligands and the influence of non-covalent interactions on geometry and crystal
packing were considered for the complexes in form of single crystals [1–5]. The
coordination numbers of d-elements are different and range from 5 to 7. In most of
compounds, O,O-donor ligands have the bridging role with different coordination modes
of COO–
 groups, i.e. from bis monodentate to hexadentate. These ligands are counter ions
only in three compounds and are involved in the hydrogen bonds. The complexes are
mononuclear, binuclear and polymeric, and supramolecular 3D networking is achieved
by hydrogen bonds and weak non-covalent interactions (C–Hꞏꞏꞏπ, π-π, C–HꞏꞏꞏN and
C–HꞏꞏꞏO) between 1D chains or 2D layers.
Based on search of the Cambridge Structural Database, the orientations of COO–
groups in benzenedicarboxylate complexes were determined [1]. The energies of three
positional isomers of benzenedicarboxylate ions were calculated using the second-order Møller-Plesset perturbation theory and three hybrid HF/DFT methods with 6-311G**
basis set. Results of Localized Molecular Orbital Energy Decomposition and Natural
Bond Orbital analyses have shown that experimental and calculated geometries are in
agreement, indicating that the terephthalate and isophthalate anions prefer the planar
conformation, while COO–
 groups are inclined and make complementary angles relative
to the aromatic rings in the phthalate anions.
Thermal stability, magnetic, photoluminescent and antimicrobial properties of some
complexes have been analyzed in detail and correlated with their structural features.
Magnetic susceptibility measurements have shown that the most of complexes exhibit
paramagnetic behavior, with the exception of one ferromagnetic Co(II) complex, which is
related to the formation of chains between molecules in the crystal packing. The
photoluminescence investigation has shown the optical activity of Zn(II) complexes with
the strongest intensity of photoluminescence for the complex with the increased number
of noncovalent interactions in structure. The antimicrobial behaviour of Zn(II) complexes
were tested in vitro against Gram-positive bacteria (Bacilus subtilis, Enterococcus
faecalis, Listeria monocytogenes and Staphylococcus aureus), Gram-negative bacteria
(Esherichia coli, Pseudomonas aeruginosa and Salmonella enteritidis) and yiest Candida
albicans and it has been shown that Zn(II) complex with isophthalate ion exhibited the
best activity against Listeria monocytogenes and Esherichia coli [2]. The relationship
between the antimicrobial behavior of complexes and their crystal structures is discussed.
PB  - Beograd : Srpsko kristalografsko društvo
C3  - Izvodi radova / XXVI konferencija Srpskog kristalografskog društva, Srebrno jezero, 27–28. jun 2019
T1  - KOMPLEKSI ELEMENATA d-BLOKA SA AROMATIČNIM O,O- I N,N-DONORSKIM LIGANDIMA: SINTEZA, STRUKTURA, SVOJSTVA I PRIMENA
T1  - COMPLEXES OF d-BLOCK ELEMENTS WITH AROMATIC O,O- AND N,N-DONOR LIGANDS: SYNTHESIS, STRUCTURE, PROPERTIES AND APPLICATIONS
EP  - 14
SP  - 11
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6703
ER  - 

@conference{
author = "Radovanović, Lidija and Dapčević, Aleksandra and Rogan, Jelena",
year = "2019",
abstract = "Reakcijom izmene liganada različitim metodama sinteze dobijeno je 22 ternarna
kompleksa elemenata d-bloka [Mn(II), Co(II), Ni(II), Cu(II) i Zn(II)] sa anjonima
aromatičnih polikarboksilnih kiselina (ftalne, izoftalne, tereftalne i piromelitne) kao
O,O-donorskim ligandima i aromatičnim N,N-donorskim ligandima kao što su
2,2'-dipiridilamin i 2,2'-bipirimidin [1–5]. Trinaest kompleksa sintetisano je u
monokristalnom obliku, dok su ostala jedinjenja mikrokristalna. Prema vrsti centralnog
atoma, u obliku monokristala dobijeno je pet Mn(II)-, dva Co(II)-, jedan Ni(II)-, dva
Cu(II)-, dva Zn(II)-kompleksa, kao i bimetalni Mn(II)–Cu(II)-kompleks. Kristalne
strukture ovih jedinjenja određene su rendgenskom strukturnom analizom. Strukturne
karakteristike kompleksa detaljno su opisane i međusobno su upoređene. Sintetisani
kompleksi ispitani su infracrvenom spektroskopijom (IC), a neki su dodatno podvrgnuti
kvantno-hemijskim proračunima, simultanoj termogravimetrijskoj, diferencijalnoj
termijskoj i diferencijalnoj skenirajućoj kalorimetrijskoj analizi (TG/DTA/DSC),
elementarnoj analizi, magnetnim merenjima na sobnoj i niskim temperaturama,
energetskoj disperzivnoj i atomskoj apsorpcionoj spektroskopiji (EDS i AAS) i merenju
fotoluminescencije. Za pojedine komplekse ispitana je i antimikrobna aktivnost. Na
osnovu rezultata IC-, ED- i AA-spektroskopije, elementarne i TG/DSC-analize,
magnetnih merenja i boje određene su formule mikrokristalnih kompleksa i
pretpostavljena je njihova struktura.
Kod kompleksa dobijenih u obliku monokristala razmatrani su parametri koji dovode
do strukturnih različitosti, kao što su dužine veza i uglovi, koordinacioni broj jona metala,
način koordinacije O,O- i N,N-donorskih liganada i uticaj nekovalentnih interakcija na
geometriju i pakovanje molekula [1–5]. Koordinacioni brojevi d-elemenata su različiti i
nalaze se u opsegu od 5 do 7. Kod većine kompleksa O,O-donorski ligandi imaju
mostovnu ulogu sa različitim načinima koordinacije COO–
-grupa, u rasponu od bis-
-monodentatnog do heksadentatnog vezivanja. Kod tri jedinjenja ovi ligandi nisu
koordinirani za jone metala, već učestvuju u građenju vodoničnih veza. Dobijeni
kompleksi su mononuklearni, binuklearni i polimerni, a supramolekulsko 3D
umrežavanje postiže se vodoničnim vezama i slabijim nekovalentnim interakcijama
(C–Hꞏꞏꞏπ, π-π, C–HꞏꞏꞏN i C–HꞏꞏꞏO) između 1D lanaca ili 2D slojeva.
Pretragom Kembričke kristalografske baze podataka utvrđene su orijentacije
COO–
-grupa kod benzen-dikarboksilat kompleksa [1]. Energije tri poziciona izomera
benzen-dikarboksilat-jona izračunate su pomoću Møller-Plesset perturbacione teorije drugog reda i tri hibridne HF/DFT metode sa 6-311G** baznim setom. Rezultati analiza
dekompozicije lokalnih molekulskih orbitala i prirodnih vezujućih orbitala pokazali su
odlično slaganje eksperimentalne i izračunate geometrije, čime je dokazano da je
planarna konformacija energetski najpovoljnija kod anjona tereftalne i izoftalne kiseline,
dok su kod anjona ftalne kiseline COO–
-grupe zarotirane i formiraju komplementarne
uglove u odnosu na benzenski prsten u najstabilnijoj konformaciji.
Termička stabilnost, magnetna, fotoluminescentna svojstva i antimikrobna aktivnost
pojedinih kompleksa detaljno su analizirani i povezani sa njihovim strukturnim
karakteristikama. Merenja magnetne susceptibilnosti pokazala su da većina ispitanih
kompleksa ima paramagnetna svojstva, sa izuzetkom jednog Co(II)-kompleksa kod kojeg
su nađene feromagnetne interakcije, što je dovedeno u vezu sa formiranjem lanaca
između molekula u kristalnom pakovanju. Ispitivanja fotoluminescencije
Zn(II)-kompleksa pokazala su da su ovi kompleksi optički aktivni, s tim da je najjači
intenzitet fotoluminescencije utvrđen za kompleks kod kojeg postoji veći broj
nekovalentnih interakcija u strukturi. Antimikrobna svojstva Zn(II)-kompleksa ispitana
su in vitro na Gram-pozitivne bakterije (Bacilus subtilis, Enterococcus faecalis, Listeria
monocytogenes i Staphylococcus aureus), Gram-negativne bakterije (Esherichia coli,
Pseudomonas aeruginosa i Salmonella enteritidis) i gljivicu Candida albicans i pokazano
je da Zn(II)-kompleks sa izoftalat-jonom ima najbolju aktivnost na bakterije Listeria
monocytogenes i Esherichia coli [2]. Diskutovana je veza između antimikrobne
aktivnosti kompleksa i njihovih kristalnih struktura., A series of 22 d-block element complexes [Mn(II), Co(II), Ni(II), Cu(II) and Zn(II)]
containing anions of aromatic polycarboxylate acids (phthalic, isophthalic, terephthalic
and pyromellic) as O,O-donor ligands and aromatic N,N-donor ligands such as
2,2'-dipyridylamine and 2,2'-bipyrimidine, has been obtained by ligand exchange reaction
using different synthetic methods [1–5]. Thirteen complexes were obtained as single
crystals, while the others were microcrystalline. According to the type of central atom,
five Mn(II), two Co(II), one Ni(II), two Cu(II), two Zn(II) complexes, and bimetallic
Mn(II)–Cu(II) complex were synthesized in form of single crystals. The structures of
these compounds were determined by single-crystal X-ray analysis. Structural properties
of complexes were discussed in detail and compared. All complexes were characterized
by infrared (IR) spectroscopy, while some of them were also subjected to the quantumchemical calculations, simultaneous thermogravimetry, differential thermal analysis and
differential scanning calorimetry (TG/DTA/DSC analysis), elemental analysis, magnetic
measurements at room and low temperatures, energy-dispersive X-ray spectroscopy
(EDS), atomic absorption spectroscopy (AAS) and photoluminescence measurements.
Antimicrobial activity was also investigated for some complexes. Based on the results of
IR, EDS and AAS spectroscopy, elemental and TG/DSC analyses, magnetic
measurements and color, the formulae of microcrystalline complexes were determined
and the structures were assumed.
The parameters that affect structural diversities, such as bond lengths and angles, the
coordination number of metal ions, the coordination mode of O,O- and
N,N-donor ligands and the influence of non-covalent interactions on geometry and crystal
packing were considered for the complexes in form of single crystals [1–5]. The
coordination numbers of d-elements are different and range from 5 to 7. In most of
compounds, O,O-donor ligands have the bridging role with different coordination modes
of COO–
 groups, i.e. from bis monodentate to hexadentate. These ligands are counter ions
only in three compounds and are involved in the hydrogen bonds. The complexes are
mononuclear, binuclear and polymeric, and supramolecular 3D networking is achieved
by hydrogen bonds and weak non-covalent interactions (C–Hꞏꞏꞏπ, π-π, C–HꞏꞏꞏN and
C–HꞏꞏꞏO) between 1D chains or 2D layers.
Based on search of the Cambridge Structural Database, the orientations of COO–
groups in benzenedicarboxylate complexes were determined [1]. The energies of three
positional isomers of benzenedicarboxylate ions were calculated using the second-order Møller-Plesset perturbation theory and three hybrid HF/DFT methods with 6-311G**
basis set. Results of Localized Molecular Orbital Energy Decomposition and Natural
Bond Orbital analyses have shown that experimental and calculated geometries are in
agreement, indicating that the terephthalate and isophthalate anions prefer the planar
conformation, while COO–
 groups are inclined and make complementary angles relative
to the aromatic rings in the phthalate anions.
Thermal stability, magnetic, photoluminescent and antimicrobial properties of some
complexes have been analyzed in detail and correlated with their structural features.
Magnetic susceptibility measurements have shown that the most of complexes exhibit
paramagnetic behavior, with the exception of one ferromagnetic Co(II) complex, which is
related to the formation of chains between molecules in the crystal packing. The
photoluminescence investigation has shown the optical activity of Zn(II) complexes with
the strongest intensity of photoluminescence for the complex with the increased number
of noncovalent interactions in structure. The antimicrobial behaviour of Zn(II) complexes
were tested in vitro against Gram-positive bacteria (Bacilus subtilis, Enterococcus
faecalis, Listeria monocytogenes and Staphylococcus aureus), Gram-negative bacteria
(Esherichia coli, Pseudomonas aeruginosa and Salmonella enteritidis) and yiest Candida
albicans and it has been shown that Zn(II) complex with isophthalate ion exhibited the
best activity against Listeria monocytogenes and Esherichia coli [2]. The relationship
between the antimicrobial behavior of complexes and their crystal structures is discussed.",
publisher = "Beograd : Srpsko kristalografsko društvo",
journal = "Izvodi radova / XXVI konferencija Srpskog kristalografskog društva, Srebrno jezero, 27–28. jun 2019",
title = "KOMPLEKSI ELEMENATA d-BLOKA SA AROMATIČNIM O,O- I N,N-DONORSKIM LIGANDIMA: SINTEZA, STRUKTURA, SVOJSTVA I PRIMENA, COMPLEXES OF d-BLOCK ELEMENTS WITH AROMATIC O,O- AND N,N-DONOR LIGANDS: SYNTHESIS, STRUCTURE, PROPERTIES AND APPLICATIONS",
pages = "14-11",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6703"
}

Radovanović, L., Dapčević, A.,& Rogan, J.. (2019). KOMPLEKSI ELEMENATA d-BLOKA SA AROMATIČNIM O,O- I N,N-DONORSKIM LIGANDIMA: SINTEZA, STRUKTURA, SVOJSTVA I PRIMENA. in Izvodi radova / XXVI konferencija Srpskog kristalografskog društva, Srebrno jezero, 27–28. jun 2019
Beograd : Srpsko kristalografsko društvo., 11-14.
https://hdl.handle.net/21.15107/rcub_technorep_6703

Radovanović L, Dapčević A, Rogan J. KOMPLEKSI ELEMENATA d-BLOKA SA AROMATIČNIM O,O- I N,N-DONORSKIM LIGANDIMA: SINTEZA, STRUKTURA, SVOJSTVA I PRIMENA. in Izvodi radova / XXVI konferencija Srpskog kristalografskog društva, Srebrno jezero, 27–28. jun 2019. 2019;:11-14.
https://hdl.handle.net/21.15107/rcub_technorep_6703 .

Radovanović, Lidija, Dapčević, Aleksandra, Rogan, Jelena, "KOMPLEKSI ELEMENATA d-BLOKA SA AROMATIČNIM O,O- I N,N-DONORSKIM LIGANDIMA: SINTEZA, STRUKTURA, SVOJSTVA I PRIMENA" in Izvodi radova / XXVI konferencija Srpskog kristalografskog društva, Srebrno jezero, 27–28. jun 2019 (2019):11-14,
https://hdl.handle.net/21.15107/rcub_technorep_6703 .

TY  - JOUR
AU  - Milovanović, Stoja
AU  - Đuriš, Jelena
AU  - Dapčević, Aleksandra
AU  - Medarević, Đorđe
AU  - Ibrić, Svetlana
AU  - Žižović, Irena
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4074
AB  - The present work is aimed towards designing advanced materials by means of sustainable processes. In that sense, the utilization of supercritical CO2 (scCO(2)) for processing of pharmaceutical polymers (Soluplus (R), Eudragit (R), and hydroxypropyl methylcellulose acetate succinate), alone and with an addition of cardiovascular drug Carvedilol, was explored. Employed single-step static scCO(2) process (pressure of 30 MPa and temperature of 100 degrees C for 2 h) enabled fabrication of solvent-free polymeric foams and Carvedilol solid dispersions with controlled microstructure and average pore diameter of 101-257 pm suitable for application in the pharmaceutical industry. ScCO2 did not remain in the foams after processing or affected the polymer composition, while Carvedilol formed hydrogen bonds with the polymers. Carvedilol was molecularly dispersed in the fabricated solid dispersions and its transition from the crystalline to amorphous form was complete. Korsmeyer-Peppas model was successfully used for the mathematical description of Carvedilol dissolution from solid dispersions. The dissolution rate of Carvedilol in acidic medium was significantly enhanced by its dispersion in tested polymers using the proposed high-pressure method.
PB  - Elsevier Sci Ltd, Oxford
T2  - Polymer Testing
T1  - Soluplus (R), Eudragit (R), HPMC-AS foams and solid dispersions for enhancement of Carvedilol dissolution rate prepared by a supercritical CO2 process
EP  - 64
SP  - 54
VL  - 76
DO  - 10.1016/j.polymertesting.2019.03.001
ER  - 

@article{
author = "Milovanović, Stoja and Đuriš, Jelena and Dapčević, Aleksandra and Medarević, Đorđe and Ibrić, Svetlana and Žižović, Irena",
year = "2019",
abstract = "The present work is aimed towards designing advanced materials by means of sustainable processes. In that sense, the utilization of supercritical CO2 (scCO(2)) for processing of pharmaceutical polymers (Soluplus (R), Eudragit (R), and hydroxypropyl methylcellulose acetate succinate), alone and with an addition of cardiovascular drug Carvedilol, was explored. Employed single-step static scCO(2) process (pressure of 30 MPa and temperature of 100 degrees C for 2 h) enabled fabrication of solvent-free polymeric foams and Carvedilol solid dispersions with controlled microstructure and average pore diameter of 101-257 pm suitable for application in the pharmaceutical industry. ScCO2 did not remain in the foams after processing or affected the polymer composition, while Carvedilol formed hydrogen bonds with the polymers. Carvedilol was molecularly dispersed in the fabricated solid dispersions and its transition from the crystalline to amorphous form was complete. Korsmeyer-Peppas model was successfully used for the mathematical description of Carvedilol dissolution from solid dispersions. The dissolution rate of Carvedilol in acidic medium was significantly enhanced by its dispersion in tested polymers using the proposed high-pressure method.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Polymer Testing",
title = "Soluplus (R), Eudragit (R), HPMC-AS foams and solid dispersions for enhancement of Carvedilol dissolution rate prepared by a supercritical CO2 process",
pages = "64-54",
volume = "76",
doi = "10.1016/j.polymertesting.2019.03.001"
}

Milovanović, S., Đuriš, J., Dapčević, A., Medarević, Đ., Ibrić, S.,& Žižović, I.. (2019). Soluplus (R), Eudragit (R), HPMC-AS foams and solid dispersions for enhancement of Carvedilol dissolution rate prepared by a supercritical CO2 process. in Polymer Testing
Elsevier Sci Ltd, Oxford., 76, 54-64.
https://doi.org/10.1016/j.polymertesting.2019.03.001

Milovanović S, Đuriš J, Dapčević A, Medarević Đ, Ibrić S, Žižović I. Soluplus (R), Eudragit (R), HPMC-AS foams and solid dispersions for enhancement of Carvedilol dissolution rate prepared by a supercritical CO2 process. in Polymer Testing. 2019;76:54-64.
doi:10.1016/j.polymertesting.2019.03.001 .

Milovanović, Stoja, Đuriš, Jelena, Dapčević, Aleksandra, Medarević, Đorđe, Ibrić, Svetlana, Žižović, Irena, "Soluplus (R), Eudragit (R), HPMC-AS foams and solid dispersions for enhancement of Carvedilol dissolution rate prepared by a supercritical CO2 process" in Polymer Testing, 76 (2019):54-64,
https://doi.org/10.1016/j.polymertesting.2019.03.001 . .

TY  - JOUR
AU  - Luković-Golić, Danijela
AU  - Radojković, Aleksandar
AU  - Dapčević, Aleksandra
AU  - Pajić, Damir
AU  - Dragović, Jure
AU  - Torić, Filip
AU  - Ćirković, Jovana
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4079
AB  - Bismuth ferrite, BiFeO3, was doped with a wide range of concentrations (0-30%) of Gd in order to investigate structural, ferroelectric, and magnetic properties and their correlation. Powder samples of Bi1-xGdxFeO3 (x = 0.00-0.30) were prepared using the hydro-evaporation synthesis method. Sintering process at 870 degrees C for 6 h of as-prepared, Gd doped BiFeO3 powders resulted in ceramic samples with relative densities in the range of (74-86) %. XRD analysis revealed that Bi1-xGdxFeO3 samples (x = 0.00-0.09) crystallized in rhombohedral phase; Bi1-xGdxFeO3 samples (x = 0.10-0.20) contained both rhombohedral and orthorhombic phases, while Bi1-xGdxFeO3 (x = 0.30) sample contained only the orthorhombic phase. The structural parameters obtained after Rietveld refinement for single-phase Bi1-xGdxFeO3 ceramic samples and microstructure image analysis were correlated with the results of ferroelectric and magnetic measurements. Bi1-xGdxFeO3 (x = 0.0625, 0.075, 0.09) samples showed improved ferroelectric properties and reduced leakage current density in comparison with undoped BiFeO3. Gradual increase in Gd content in BiFeO3 led to enhanced magnetic responses and weak ferromagnetic behavior.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Change in structural, ferroelectric, and magnetic properties of bismuth ferrite induced by doping with gadolinium
EP  - 19165
IS  - 15
SP  - 19158
VL  - 45
DO  - 10.1016/j.ceramint.2019.06.162
ER  - 

@article{
author = "Luković-Golić, Danijela and Radojković, Aleksandar and Dapčević, Aleksandra and Pajić, Damir and Dragović, Jure and Torić, Filip and Ćirković, Jovana and Branković, Goran and Branković, Zorica",
year = "2019",
abstract = "Bismuth ferrite, BiFeO3, was doped with a wide range of concentrations (0-30%) of Gd in order to investigate structural, ferroelectric, and magnetic properties and their correlation. Powder samples of Bi1-xGdxFeO3 (x = 0.00-0.30) were prepared using the hydro-evaporation synthesis method. Sintering process at 870 degrees C for 6 h of as-prepared, Gd doped BiFeO3 powders resulted in ceramic samples with relative densities in the range of (74-86) %. XRD analysis revealed that Bi1-xGdxFeO3 samples (x = 0.00-0.09) crystallized in rhombohedral phase; Bi1-xGdxFeO3 samples (x = 0.10-0.20) contained both rhombohedral and orthorhombic phases, while Bi1-xGdxFeO3 (x = 0.30) sample contained only the orthorhombic phase. The structural parameters obtained after Rietveld refinement for single-phase Bi1-xGdxFeO3 ceramic samples and microstructure image analysis were correlated with the results of ferroelectric and magnetic measurements. Bi1-xGdxFeO3 (x = 0.0625, 0.075, 0.09) samples showed improved ferroelectric properties and reduced leakage current density in comparison with undoped BiFeO3. Gradual increase in Gd content in BiFeO3 led to enhanced magnetic responses and weak ferromagnetic behavior.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Change in structural, ferroelectric, and magnetic properties of bismuth ferrite induced by doping with gadolinium",
pages = "19165-19158",
number = "15",
volume = "45",
doi = "10.1016/j.ceramint.2019.06.162"
}

Luković-Golić, D., Radojković, A., Dapčević, A., Pajić, D., Dragović, J., Torić, F., Ćirković, J., Branković, G.,& Branković, Z.. (2019). Change in structural, ferroelectric, and magnetic properties of bismuth ferrite induced by doping with gadolinium. in Ceramics International
Elsevier Sci Ltd, Oxford., 45(15), 19158-19165.
https://doi.org/10.1016/j.ceramint.2019.06.162

Luković-Golić D, Radojković A, Dapčević A, Pajić D, Dragović J, Torić F, Ćirković J, Branković G, Branković Z. Change in structural, ferroelectric, and magnetic properties of bismuth ferrite induced by doping with gadolinium. in Ceramics International. 2019;45(15):19158-19165.
doi:10.1016/j.ceramint.2019.06.162 .

Luković-Golić, Danijela, Radojković, Aleksandar, Dapčević, Aleksandra, Pajić, Damir, Dragović, Jure, Torić, Filip, Ćirković, Jovana, Branković, Goran, Branković, Zorica, "Change in structural, ferroelectric, and magnetic properties of bismuth ferrite induced by doping with gadolinium" in Ceramics International, 45, no. 15 (2019):19158-19165,
https://doi.org/10.1016/j.ceramint.2019.06.162 . .

TY  - JOUR
AU  - Džunuzović, Jasna
AU  - Stefanović, Ivan
AU  - Džunuzović, Enis
AU  - Dapčević, Aleksandra
AU  - Šešlija, Sanja
AU  - Balanč, Bojana
AU  - Lamae, Giuseppe C.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4118
AB  - A series of environmentally friendly polyurethane (PU) networks based on polycaprolactone as soft segment (SS) and Boltorn (R) aliphatic hyperbranched polyester of the second pseudo generation as crosslinking agent was prepared by a two-step polymerization in solution. The chemical structure of the PU networks was analyzed by Fourier transform infrared spectroscopy, while XRD analysis revealed that these samples are amorphous. Swelling measurements, water absorption study, dynamic mechanical analysis, differential scanning calorimetry, thermogravimetric analysis, mechanical tests and scanning electron microscope revealed that, swelling behavior, hydrophobicity, thermal and mechanical features and morphology of PU networks show clear dependence on polycaprolactone content. The increase of the SS content induced appearance of the microphase separated morphology, increase of thermal stability, elongation at break, hydrophobicity and swelling ability in tetrahydrofuran and toluene, but at the same time it is responsible for the decrease of crosslinking density, glass transition temperatures, rigidity, tensile strength and Young's modulus of PU networks. Scanning electron microscope images of the fracture surfaces of PU networks show that their surface is rough, irregular, with flake-like structure, where size of flakes increases with increasing SS content. These results indicate that by choosing adequate SS content, PU coatings with diverse features based on polycaprolactone and Boltorn (R) aliphatic hyperbranched polyester can be designed for appropriate and desired application.
PB  - Elsevier Science Sa, Lausanne
T2  - Progress in Organic Coatings
T1  - Polyurethane networks based on polycaprolactone and hyperbranched polyester: Structural, thermal and mechanical investigation
VL  - 137
DO  - 10.1016/j.porgcoat.2019.105305
ER  - 

@article{
author = "Džunuzović, Jasna and Stefanović, Ivan and Džunuzović, Enis and Dapčević, Aleksandra and Šešlija, Sanja and Balanč, Bojana and Lamae, Giuseppe C.",
year = "2019",
abstract = "A series of environmentally friendly polyurethane (PU) networks based on polycaprolactone as soft segment (SS) and Boltorn (R) aliphatic hyperbranched polyester of the second pseudo generation as crosslinking agent was prepared by a two-step polymerization in solution. The chemical structure of the PU networks was analyzed by Fourier transform infrared spectroscopy, while XRD analysis revealed that these samples are amorphous. Swelling measurements, water absorption study, dynamic mechanical analysis, differential scanning calorimetry, thermogravimetric analysis, mechanical tests and scanning electron microscope revealed that, swelling behavior, hydrophobicity, thermal and mechanical features and morphology of PU networks show clear dependence on polycaprolactone content. The increase of the SS content induced appearance of the microphase separated morphology, increase of thermal stability, elongation at break, hydrophobicity and swelling ability in tetrahydrofuran and toluene, but at the same time it is responsible for the decrease of crosslinking density, glass transition temperatures, rigidity, tensile strength and Young's modulus of PU networks. Scanning electron microscope images of the fracture surfaces of PU networks show that their surface is rough, irregular, with flake-like structure, where size of flakes increases with increasing SS content. These results indicate that by choosing adequate SS content, PU coatings with diverse features based on polycaprolactone and Boltorn (R) aliphatic hyperbranched polyester can be designed for appropriate and desired application.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Progress in Organic Coatings",
title = "Polyurethane networks based on polycaprolactone and hyperbranched polyester: Structural, thermal and mechanical investigation",
volume = "137",
doi = "10.1016/j.porgcoat.2019.105305"
}

Džunuzović, J., Stefanović, I., Džunuzović, E., Dapčević, A., Šešlija, S., Balanč, B.,& Lamae, G. C.. (2019). Polyurethane networks based on polycaprolactone and hyperbranched polyester: Structural, thermal and mechanical investigation. in Progress in Organic Coatings
Elsevier Science Sa, Lausanne., 137.
https://doi.org/10.1016/j.porgcoat.2019.105305

Džunuzović J, Stefanović I, Džunuzović E, Dapčević A, Šešlija S, Balanč B, Lamae GC. Polyurethane networks based on polycaprolactone and hyperbranched polyester: Structural, thermal and mechanical investigation. in Progress in Organic Coatings. 2019;137.
doi:10.1016/j.porgcoat.2019.105305 .

Džunuzović, Jasna, Stefanović, Ivan, Džunuzović, Enis, Dapčević, Aleksandra, Šešlija, Sanja, Balanč, Bojana, Lamae, Giuseppe C., "Polyurethane networks based on polycaprolactone and hyperbranched polyester: Structural, thermal and mechanical investigation" in Progress in Organic Coatings, 137 (2019),
https://doi.org/10.1016/j.porgcoat.2019.105305 . .

TY  - JOUR
AU  - Pocuca-Nesić, Milica
AU  - Marinković-Stanojević, Zorica
AU  - Cotić-Smole, Patricia
AU  - Dapčević, Aleksandra
AU  - Tasić, Nikola
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4138
AB  - Yttrium manganite (YMnO3) is widely investigated multiferroic material with potential use in many technological applications. In this paper, we report on the preparation and characterization of multiferroic hexagonal YMnO3 ceramics obtained by chemical synthesis route. Precursor powders were prepared by the polymerizable complex method from citrate precursors. After calcination at 900 degrees C the powders contained mixture of Y-Mn-O phases which were further sintered at different temperatures. XRD analysis revealed that sintering at 1400 degrees C resulted in the formation of pure hexagonal YMnO3. Density of the obtained ceramics was 96 %TD. The ceramic samples proved to have multiferroic properties - they are antiferromagnetic below 42 K with linear dependence of magnetization as a function of applied magnetic field. The ferroelectric measurements performed at room temperature showed remanent polarization of 0.21 mu C/cm(2) and the coercive field of 6.0 kV/cm for the YMnO3 sample sintered at 1400 degrees C. The magnetization curves measured at 2 and 5 K for the powder samples calcined at 900 degrees C and ceramic samples sintered at 1300 degrees C exhibited a hysteresis loop due to a small concentration of Mn3O4 in the samples.
PB  - Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad
T2  - Processing and Application of Ceramics
T1  - Processing and properties of pure antiferromagnetic h-YMnO3
EP  - 434
IS  - 4
SP  - 427
VL  - 13
DO  - 10.2298/PAC1904427P
ER  - 

@article{
author = "Pocuca-Nesić, Milica and Marinković-Stanojević, Zorica and Cotić-Smole, Patricia and Dapčević, Aleksandra and Tasić, Nikola and Branković, Goran and Branković, Zorica",
year = "2019",
abstract = "Yttrium manganite (YMnO3) is widely investigated multiferroic material with potential use in many technological applications. In this paper, we report on the preparation and characterization of multiferroic hexagonal YMnO3 ceramics obtained by chemical synthesis route. Precursor powders were prepared by the polymerizable complex method from citrate precursors. After calcination at 900 degrees C the powders contained mixture of Y-Mn-O phases which were further sintered at different temperatures. XRD analysis revealed that sintering at 1400 degrees C resulted in the formation of pure hexagonal YMnO3. Density of the obtained ceramics was 96 %TD. The ceramic samples proved to have multiferroic properties - they are antiferromagnetic below 42 K with linear dependence of magnetization as a function of applied magnetic field. The ferroelectric measurements performed at room temperature showed remanent polarization of 0.21 mu C/cm(2) and the coercive field of 6.0 kV/cm for the YMnO3 sample sintered at 1400 degrees C. The magnetization curves measured at 2 and 5 K for the powder samples calcined at 900 degrees C and ceramic samples sintered at 1300 degrees C exhibited a hysteresis loop due to a small concentration of Mn3O4 in the samples.",
publisher = "Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad",
journal = "Processing and Application of Ceramics",
title = "Processing and properties of pure antiferromagnetic h-YMnO3",
pages = "434-427",
number = "4",
volume = "13",
doi = "10.2298/PAC1904427P"
}

Pocuca-Nesić, M., Marinković-Stanojević, Z., Cotić-Smole, P., Dapčević, A., Tasić, N., Branković, G.,& Branković, Z.. (2019). Processing and properties of pure antiferromagnetic h-YMnO3. in Processing and Application of Ceramics
Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad., 13(4), 427-434.
https://doi.org/10.2298/PAC1904427P

Pocuca-Nesić M, Marinković-Stanojević Z, Cotić-Smole P, Dapčević A, Tasić N, Branković G, Branković Z. Processing and properties of pure antiferromagnetic h-YMnO3. in Processing and Application of Ceramics. 2019;13(4):427-434.
doi:10.2298/PAC1904427P .

Pocuca-Nesić, Milica, Marinković-Stanojević, Zorica, Cotić-Smole, Patricia, Dapčević, Aleksandra, Tasić, Nikola, Branković, Goran, Branković, Zorica, "Processing and properties of pure antiferromagnetic h-YMnO3" in Processing and Application of Ceramics, 13, no. 4 (2019):427-434,
https://doi.org/10.2298/PAC1904427P . .

TY  - JOUR
AU  - Marković, Bojana M.
AU  - Spasojević, Vojislav
AU  - Dapčević, Aleksandra
AU  - Vuković, Zorica M.
AU  - Pavlović, Vladimir B.
AU  - Ranđelović, Danijela
AU  - Nastasović, Aleksandra
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4179
AB  - Magnetic and non-magnetic macroporous crosslinked copolymers of glycidyl methacrylate and trimethylolpropane trimethacrylate were prepared by suspension copolymerization and functionalized with diethylenetriamine. The samples were characterized by mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy analysis (FTIR-ATR), thermogravimetric analysis (TGA), X-ray diffractometry (XRD), atomic force microscopy (AFM), transmission electron microscopy (TEM) and SQUID magnetometry. The FTIR-ATR analysis of synthesized magnetic nanocomposites confirmed the presence of magnetite and successful aminofunctionalization. Non-functionalized and amino-functionalized nanocomposites exhibited superparamagnetic behavior at 300 K, with a saturation magnetization of 5.0 emu/g and 2.9 emu/g, respectively. TEM analysis of the magnetic nanocomposite has shown that magnetic nanoparticles were homogeneously dispersed in the polymer matrix. It was demonstrated that incorporation of magnetic nanoparticles enhanced the thermal stability of the magnetic nanocomposite in comparison to the initial non-magnetic macroporous copolymer.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Characterization of glycidyl methacrylate based magnetic nanocomposites
EP  - 35
IS  - 1
SP  - 25
VL  - 73
DO  - 10.2298/HEMIND181113006M
ER  - 

@article{
author = "Marković, Bojana M. and Spasojević, Vojislav and Dapčević, Aleksandra and Vuković, Zorica M. and Pavlović, Vladimir B. and Ranđelović, Danijela and Nastasović, Aleksandra",
year = "2019",
abstract = "Magnetic and non-magnetic macroporous crosslinked copolymers of glycidyl methacrylate and trimethylolpropane trimethacrylate were prepared by suspension copolymerization and functionalized with diethylenetriamine. The samples were characterized by mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy analysis (FTIR-ATR), thermogravimetric analysis (TGA), X-ray diffractometry (XRD), atomic force microscopy (AFM), transmission electron microscopy (TEM) and SQUID magnetometry. The FTIR-ATR analysis of synthesized magnetic nanocomposites confirmed the presence of magnetite and successful aminofunctionalization. Non-functionalized and amino-functionalized nanocomposites exhibited superparamagnetic behavior at 300 K, with a saturation magnetization of 5.0 emu/g and 2.9 emu/g, respectively. TEM analysis of the magnetic nanocomposite has shown that magnetic nanoparticles were homogeneously dispersed in the polymer matrix. It was demonstrated that incorporation of magnetic nanoparticles enhanced the thermal stability of the magnetic nanocomposite in comparison to the initial non-magnetic macroporous copolymer.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Characterization of glycidyl methacrylate based magnetic nanocomposites",
pages = "35-25",
number = "1",
volume = "73",
doi = "10.2298/HEMIND181113006M"
}

Marković, B. M., Spasojević, V., Dapčević, A., Vuković, Z. M., Pavlović, V. B., Ranđelović, D.,& Nastasović, A.. (2019). Characterization of glycidyl methacrylate based magnetic nanocomposites. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 73(1), 25-35.
https://doi.org/10.2298/HEMIND181113006M

Marković BM, Spasojević V, Dapčević A, Vuković ZM, Pavlović VB, Ranđelović D, Nastasović A. Characterization of glycidyl methacrylate based magnetic nanocomposites. in Hemijska industrija. 2019;73(1):25-35.
doi:10.2298/HEMIND181113006M .

Marković, Bojana M., Spasojević, Vojislav, Dapčević, Aleksandra, Vuković, Zorica M., Pavlović, Vladimir B., Ranđelović, Danijela, Nastasović, Aleksandra, "Characterization of glycidyl methacrylate based magnetic nanocomposites" in Hemijska industrija, 73, no. 1 (2019):25-35,
https://doi.org/10.2298/HEMIND181113006M . .