Dostanić, Jasmina

Link to this page

Authority KeyName Variants
orcid::0000-0002-3934-0569
  • Dostanić, Jasmina (11)
Projects

Author's Bibliography

Mechanistic insights into the simultaneous visible-light induced photodegradation of organic pollutants by g-C3N4/titanate heterojunction

Milošević, Ksenija; Lončarević, Davor; Mudrinić, Tihana; Kalagasidis Krušić, Melina; Dostanić, Jasmina

(Springer Science and Business Media B.V., 2023)

TY  - JOUR
AU  - Milošević, Ksenija
AU  - Lončarević, Davor
AU  - Mudrinić, Tihana
AU  - Kalagasidis Krušić, Melina
AU  - Dostanić, Jasmina
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5803
AB  - The visible-light-active heterojunctions based on TiO2 were extensively investigated due to their wide range of energy and environment applications. In this study, g-C3N4/titanate heterojunction photocatalyst was successfully prepared by a simple one-step calcination route from melamine and hydrothermally prepared titanates. The photocatalyst was characterized by different physicochemical methods, e.g., X-ray diffraction (XRD), scanning electron microscopy (SEM), and N2 physisorption analysis. The photocatalytic efficiency of synthesized photocatalyst was evaluated by single and simultaneous degradation of methylene blue (MB) and orange G (OG) dyes under solar and visible light irradiation. The photocatalyst exhibited improved visible light activity due to the efficient separation of photogenerated charge carriers and enhanced visible light absorption. The degradation of MB was examined under different reaction conditions to assess the influence of initial MB concentration, catalyst loading, and pH on the degradation kinetics. Dye degradation study in the single and binary dye systems revealed that adsorption was limiting step that governs the pollutant degradation order. Radical trapping experiments were performed using different types of scavengers to highlight the difference in photochemical reactions and mechanism of MB and OG dye degradation under different light irradiation. Comparison of the reaction pathways under visible and solar light irradiation supported with determined bandgap edges and photoluminescence (PL) analysis suggested that the g-C3N4/titanate heterojunction belonged to the type II heterojunction.
PB  - Springer Science and Business Media B.V.
T2  - Journal of Nanoparticle Research
T1  - Mechanistic insights into the simultaneous visible-light induced photodegradation of organic pollutants by g-C3N4/titanate heterojunction
IS  - 2
SP  - 26
VL  - 25
DO  - 10.1007/s11051-023-05673-x
ER  - 
@article{
author = "Milošević, Ksenija and Lončarević, Davor and Mudrinić, Tihana and Kalagasidis Krušić, Melina and Dostanić, Jasmina",
year = "2023",
abstract = "The visible-light-active heterojunctions based on TiO2 were extensively investigated due to their wide range of energy and environment applications. In this study, g-C3N4/titanate heterojunction photocatalyst was successfully prepared by a simple one-step calcination route from melamine and hydrothermally prepared titanates. The photocatalyst was characterized by different physicochemical methods, e.g., X-ray diffraction (XRD), scanning electron microscopy (SEM), and N2 physisorption analysis. The photocatalytic efficiency of synthesized photocatalyst was evaluated by single and simultaneous degradation of methylene blue (MB) and orange G (OG) dyes under solar and visible light irradiation. The photocatalyst exhibited improved visible light activity due to the efficient separation of photogenerated charge carriers and enhanced visible light absorption. The degradation of MB was examined under different reaction conditions to assess the influence of initial MB concentration, catalyst loading, and pH on the degradation kinetics. Dye degradation study in the single and binary dye systems revealed that adsorption was limiting step that governs the pollutant degradation order. Radical trapping experiments were performed using different types of scavengers to highlight the difference in photochemical reactions and mechanism of MB and OG dye degradation under different light irradiation. Comparison of the reaction pathways under visible and solar light irradiation supported with determined bandgap edges and photoluminescence (PL) analysis suggested that the g-C3N4/titanate heterojunction belonged to the type II heterojunction.",
publisher = "Springer Science and Business Media B.V.",
journal = "Journal of Nanoparticle Research",
title = "Mechanistic insights into the simultaneous visible-light induced photodegradation of organic pollutants by g-C3N4/titanate heterojunction",
number = "2",
pages = "26",
volume = "25",
doi = "10.1007/s11051-023-05673-x"
}
Milošević, K., Lončarević, D., Mudrinić, T., Kalagasidis Krušić, M.,& Dostanić, J.. (2023). Mechanistic insights into the simultaneous visible-light induced photodegradation of organic pollutants by g-C3N4/titanate heterojunction. in Journal of Nanoparticle Research
Springer Science and Business Media B.V.., 25(2), 26.
https://doi.org/10.1007/s11051-023-05673-x
Milošević K, Lončarević D, Mudrinić T, Kalagasidis Krušić M, Dostanić J. Mechanistic insights into the simultaneous visible-light induced photodegradation of organic pollutants by g-C3N4/titanate heterojunction. in Journal of Nanoparticle Research. 2023;25(2):26.
doi:10.1007/s11051-023-05673-x .
Milošević, Ksenija, Lončarević, Davor, Mudrinić, Tihana, Kalagasidis Krušić, Melina, Dostanić, Jasmina, "Mechanistic insights into the simultaneous visible-light induced photodegradation of organic pollutants by g-C3N4/titanate heterojunction" in Journal of Nanoparticle Research, 25, no. 2 (2023):26,
https://doi.org/10.1007/s11051-023-05673-x . .
1
1

Simultaneous enhancement of natural sunlightand artificial UV-driven photocatalytic activity of a mechanically activated ZnO/SnO2 composite

Marković, Smilja; Stanković, Ana; Dostanić, Jasmina; Veselinović, Ljiljana; Mančić, Lidija; Škapin, Srečo Davor; Dražić, Goran; Janković-Častvan, Ivona; Uskoković, Dragan

(Royal Soc Chemistry, Cambridge, 2017)

TY  - JOUR
AU  - Marković, Smilja
AU  - Stanković, Ana
AU  - Dostanić, Jasmina
AU  - Veselinović, Ljiljana
AU  - Mančić, Lidija
AU  - Škapin, Srečo Davor
AU  - Dražić, Goran
AU  - Janković-Častvan, Ivona
AU  - Uskoković, Dragan
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3541
AB  - Mechanical milling of commercial ZnO and SnO2 was used to produce a ZnO/SnO2 composite with a high density of surface defects; in particular, zinc interstitials (Zni) and oxygen vacancies (VO). To determine the impact of surface defects on photocatalytic activity, the relative concentration ratio of bulk defects to surface defects was modified by annealing at 400 and 700 degrees C. The possible application of the ZnO/SnO2 composite as a natural sunlight and UV- light driven photocatalyst was revealed via de-colorization of methylene blue. In both cases the ZnO/SnO2 composite exhibited enhanced photocatalytic activity as compared to the pristine ZnO. In order to investigate the origin of the enhancement, the pristine metal oxides and composites were characterized using a variety of techniques, including X-ray diffraction (XRD), Raman and Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FESEM), laser diffraction particle size analysis, Brunauer-Emmett-Teller, UV-Vis diffuse reflectance and photoluminescence spectroscopy. High-resolution transmission electron microscopy (HRTEM) and elemental mapping analyses were used to reveal the presence of SnO2 nanocrystallites on the surface of larger ZnO particles. The enhanced photocatalytic activity of the composite can be attributed to the synergetic effect of the surface defects and the ZnO/SnO2 heterojunction particles, which facilitated charge separation, thereby hindering the recombination of photogenerated carriers. This study draws attention to mechanical activation as an inexpensive and environmentally friendly technique for the large-scale production of the composite with an enhanced photocatalytic activity under illumination of either UV or sunlight.
PB  - Royal Soc Chemistry, Cambridge
T2  - RSC Advances
T1  - Simultaneous enhancement of natural sunlightand artificial UV-driven photocatalytic activity of a mechanically activated ZnO/SnO2 composite
EP  - 42737
IS  - 68
SP  - 42725
VL  - 7
DO  - 10.1039/c7ra06895f
ER  - 
@article{
author = "Marković, Smilja and Stanković, Ana and Dostanić, Jasmina and Veselinović, Ljiljana and Mančić, Lidija and Škapin, Srečo Davor and Dražić, Goran and Janković-Častvan, Ivona and Uskoković, Dragan",
year = "2017",
abstract = "Mechanical milling of commercial ZnO and SnO2 was used to produce a ZnO/SnO2 composite with a high density of surface defects; in particular, zinc interstitials (Zni) and oxygen vacancies (VO). To determine the impact of surface defects on photocatalytic activity, the relative concentration ratio of bulk defects to surface defects was modified by annealing at 400 and 700 degrees C. The possible application of the ZnO/SnO2 composite as a natural sunlight and UV- light driven photocatalyst was revealed via de-colorization of methylene blue. In both cases the ZnO/SnO2 composite exhibited enhanced photocatalytic activity as compared to the pristine ZnO. In order to investigate the origin of the enhancement, the pristine metal oxides and composites were characterized using a variety of techniques, including X-ray diffraction (XRD), Raman and Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FESEM), laser diffraction particle size analysis, Brunauer-Emmett-Teller, UV-Vis diffuse reflectance and photoluminescence spectroscopy. High-resolution transmission electron microscopy (HRTEM) and elemental mapping analyses were used to reveal the presence of SnO2 nanocrystallites on the surface of larger ZnO particles. The enhanced photocatalytic activity of the composite can be attributed to the synergetic effect of the surface defects and the ZnO/SnO2 heterojunction particles, which facilitated charge separation, thereby hindering the recombination of photogenerated carriers. This study draws attention to mechanical activation as an inexpensive and environmentally friendly technique for the large-scale production of the composite with an enhanced photocatalytic activity under illumination of either UV or sunlight.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "RSC Advances",
title = "Simultaneous enhancement of natural sunlightand artificial UV-driven photocatalytic activity of a mechanically activated ZnO/SnO2 composite",
pages = "42737-42725",
number = "68",
volume = "7",
doi = "10.1039/c7ra06895f"
}
Marković, S., Stanković, A., Dostanić, J., Veselinović, L., Mančić, L., Škapin, S. D., Dražić, G., Janković-Častvan, I.,& Uskoković, D.. (2017). Simultaneous enhancement of natural sunlightand artificial UV-driven photocatalytic activity of a mechanically activated ZnO/SnO2 composite. in RSC Advances
Royal Soc Chemistry, Cambridge., 7(68), 42725-42737.
https://doi.org/10.1039/c7ra06895f
Marković S, Stanković A, Dostanić J, Veselinović L, Mančić L, Škapin SD, Dražić G, Janković-Častvan I, Uskoković D. Simultaneous enhancement of natural sunlightand artificial UV-driven photocatalytic activity of a mechanically activated ZnO/SnO2 composite. in RSC Advances. 2017;7(68):42725-42737.
doi:10.1039/c7ra06895f .
Marković, Smilja, Stanković, Ana, Dostanić, Jasmina, Veselinović, Ljiljana, Mančić, Lidija, Škapin, Srečo Davor, Dražić, Goran, Janković-Častvan, Ivona, Uskoković, Dragan, "Simultaneous enhancement of natural sunlightand artificial UV-driven photocatalytic activity of a mechanically activated ZnO/SnO2 composite" in RSC Advances, 7, no. 68 (2017):42725-42737,
https://doi.org/10.1039/c7ra06895f . .
28
18
29

Antimicrobial and Photocatalytic Abilities of Ag2CO3 Nano-Rods

Lončarević, Davor; Vukoje, Ivana D.; Dostanić, Jasmina; Bjelajac, Anđelika; Đorđević, Vesna R.; Dimitrijević, Suzana; Nedeljković, Jovan

(Wiley-VCH Verlag Gmbh, Weinheim, 2017)

TY  - JOUR
AU  - Lončarević, Davor
AU  - Vukoje, Ivana D.
AU  - Dostanić, Jasmina
AU  - Bjelajac, Anđelika
AU  - Đorđević, Vesna R.
AU  - Dimitrijević, Suzana
AU  - Nedeljković, Jovan
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3742
AB  - The rod-like Ag2CO3 particles (2-4 3 0.3-0.6 mm, length 3 diameter) were synthesized in water by the precipitation reaction between AgNO3 and NaHCO3 in the presence of polyvinylpyrrolidone. The X-ray diffraction analysis revealed the co-existence of monoclinic and hexagonal phases of Ag2CO3, without presence of impurities. The band gap energy of Ag-2 CO3 was found to be 1.4 eV from the diffuse reflectance spectra. Photocatalytic ability of Ag2CO3 was tested using degradation reaction of the organic dye methylene blue over the wide range of concentrations, as well as under long run working conditions in repeated cycles. The photocatalytic mechanism was discussed in terms of the relative energetics of valence and conduction band. Antimicrobial efficiency of Ag-2 CO3 in dark was tested against Gram-negative bacteria E. coli. The Ag2CO3 dispersions in the concentration range 0.1-1.0 mg/mL ensured 100% reduction of bacteria cells. Time-dependent measurements revealed that reduction rates of bacteria cells vary in ascending order with the content of Ag2CO3. On the other hand, the observed reduction rates of bacteria cells do not depend on the concentration of coexisting free Ag+ ions (from 2 to 25 mg/L) present in Ag2CO3 dispersion.
PB  - Wiley-VCH Verlag Gmbh, Weinheim
T2  - Chemistryselect
T1  - Antimicrobial and Photocatalytic Abilities of Ag2CO3 Nano-Rods
EP  - 2938
IS  - 10
SP  - 2931
VL  - 2
DO  - 10.1002/slct.201700003
ER  - 
@article{
author = "Lončarević, Davor and Vukoje, Ivana D. and Dostanić, Jasmina and Bjelajac, Anđelika and Đorđević, Vesna R. and Dimitrijević, Suzana and Nedeljković, Jovan",
year = "2017",
abstract = "The rod-like Ag2CO3 particles (2-4 3 0.3-0.6 mm, length 3 diameter) were synthesized in water by the precipitation reaction between AgNO3 and NaHCO3 in the presence of polyvinylpyrrolidone. The X-ray diffraction analysis revealed the co-existence of monoclinic and hexagonal phases of Ag2CO3, without presence of impurities. The band gap energy of Ag-2 CO3 was found to be 1.4 eV from the diffuse reflectance spectra. Photocatalytic ability of Ag2CO3 was tested using degradation reaction of the organic dye methylene blue over the wide range of concentrations, as well as under long run working conditions in repeated cycles. The photocatalytic mechanism was discussed in terms of the relative energetics of valence and conduction band. Antimicrobial efficiency of Ag-2 CO3 in dark was tested against Gram-negative bacteria E. coli. The Ag2CO3 dispersions in the concentration range 0.1-1.0 mg/mL ensured 100% reduction of bacteria cells. Time-dependent measurements revealed that reduction rates of bacteria cells vary in ascending order with the content of Ag2CO3. On the other hand, the observed reduction rates of bacteria cells do not depend on the concentration of coexisting free Ag+ ions (from 2 to 25 mg/L) present in Ag2CO3 dispersion.",
publisher = "Wiley-VCH Verlag Gmbh, Weinheim",
journal = "Chemistryselect",
title = "Antimicrobial and Photocatalytic Abilities of Ag2CO3 Nano-Rods",
pages = "2938-2931",
number = "10",
volume = "2",
doi = "10.1002/slct.201700003"
}
Lončarević, D., Vukoje, I. D., Dostanić, J., Bjelajac, A., Đorđević, V. R., Dimitrijević, S.,& Nedeljković, J.. (2017). Antimicrobial and Photocatalytic Abilities of Ag2CO3 Nano-Rods. in Chemistryselect
Wiley-VCH Verlag Gmbh, Weinheim., 2(10), 2931-2938.
https://doi.org/10.1002/slct.201700003
Lončarević D, Vukoje ID, Dostanić J, Bjelajac A, Đorđević VR, Dimitrijević S, Nedeljković J. Antimicrobial and Photocatalytic Abilities of Ag2CO3 Nano-Rods. in Chemistryselect. 2017;2(10):2931-2938.
doi:10.1002/slct.201700003 .
Lončarević, Davor, Vukoje, Ivana D., Dostanić, Jasmina, Bjelajac, Anđelika, Đorđević, Vesna R., Dimitrijević, Suzana, Nedeljković, Jovan, "Antimicrobial and Photocatalytic Abilities of Ag2CO3 Nano-Rods" in Chemistryselect, 2, no. 10 (2017):2931-2938,
https://doi.org/10.1002/slct.201700003 . .
16
7
15

Spectroscopic and quantum chemical investigations of substituent effects on the azo-hydrazone tautomerism and acid-base properties of arylazo pyridone dyes

Dostanić, Jasmina; Mijin, Dušan; Ušćumlić, Gordana; Jovanović, Dušan M.; Zlatar, Matija; Lončarević, Davor

(Pergamon-Elsevier Science Ltd, Oxford, 2014)

TY  - JOUR
AU  - Dostanić, Jasmina
AU  - Mijin, Dušan
AU  - Ušćumlić, Gordana
AU  - Jovanović, Dušan M.
AU  - Zlatar, Matija
AU  - Lončarević, Davor
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2842
AB  - A series of 5-(4-substituted arylazo)-6-hydroxy-4-methyl-3-cyano-2-pyridone dyes was synthesized and the structure of the dyes was confirmed by UV-Vis, FT-IR, H-1 NMR and C-13 NMR spectroscopic techniques. The azo-hydrazone tautomeric equilibrium was found to depend on the substituents as well as on the acidity and basicity of the media. Ionization constant, pK(a), of the dyes was determined by UV-Vis spectroscopy and correlated with the Hammett substituent constants, sigma(p) and sigma(I). The interpretation of the effect of different substituent in phenyl ring of arylazo pyridone dyes on their spectroscopic and structural properties was based on quantum chemical calculations performed by the density functional theory (DET/M06-2X) method. The DFT calculations confirmed the existence of two forms in water solution: hydrazone form in acidic and neutral media and anionic form in basic media. The different contribution of azo and hydrazone canonical forms of anionic form is observed for dyes with electron-donating and dyes with electron-withdrawing groups. The dependence of absorption spectra and determined pK(a) values to the substituent type seems to be mostly due to azo/hydrazone canonical structure ratio in their anionic form.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
T1  - Spectroscopic and quantum chemical investigations of substituent effects on the azo-hydrazone tautomerism and acid-base properties of arylazo pyridone dyes
EP  - 45
SP  - 37
VL  - 123
DO  - 10.1016/j.saa.2013.12.064
ER  - 
@article{
author = "Dostanić, Jasmina and Mijin, Dušan and Ušćumlić, Gordana and Jovanović, Dušan M. and Zlatar, Matija and Lončarević, Davor",
year = "2014",
abstract = "A series of 5-(4-substituted arylazo)-6-hydroxy-4-methyl-3-cyano-2-pyridone dyes was synthesized and the structure of the dyes was confirmed by UV-Vis, FT-IR, H-1 NMR and C-13 NMR spectroscopic techniques. The azo-hydrazone tautomeric equilibrium was found to depend on the substituents as well as on the acidity and basicity of the media. Ionization constant, pK(a), of the dyes was determined by UV-Vis spectroscopy and correlated with the Hammett substituent constants, sigma(p) and sigma(I). The interpretation of the effect of different substituent in phenyl ring of arylazo pyridone dyes on their spectroscopic and structural properties was based on quantum chemical calculations performed by the density functional theory (DET/M06-2X) method. The DFT calculations confirmed the existence of two forms in water solution: hydrazone form in acidic and neutral media and anionic form in basic media. The different contribution of azo and hydrazone canonical forms of anionic form is observed for dyes with electron-donating and dyes with electron-withdrawing groups. The dependence of absorption spectra and determined pK(a) values to the substituent type seems to be mostly due to azo/hydrazone canonical structure ratio in their anionic form.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy",
title = "Spectroscopic and quantum chemical investigations of substituent effects on the azo-hydrazone tautomerism and acid-base properties of arylazo pyridone dyes",
pages = "45-37",
volume = "123",
doi = "10.1016/j.saa.2013.12.064"
}
Dostanić, J., Mijin, D., Ušćumlić, G., Jovanović, D. M., Zlatar, M.,& Lončarević, D.. (2014). Spectroscopic and quantum chemical investigations of substituent effects on the azo-hydrazone tautomerism and acid-base properties of arylazo pyridone dyes. in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
Pergamon-Elsevier Science Ltd, Oxford., 123, 37-45.
https://doi.org/10.1016/j.saa.2013.12.064
Dostanić J, Mijin D, Ušćumlić G, Jovanović DM, Zlatar M, Lončarević D. Spectroscopic and quantum chemical investigations of substituent effects on the azo-hydrazone tautomerism and acid-base properties of arylazo pyridone dyes. in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy. 2014;123:37-45.
doi:10.1016/j.saa.2013.12.064 .
Dostanić, Jasmina, Mijin, Dušan, Ušćumlić, Gordana, Jovanović, Dušan M., Zlatar, Matija, Lončarević, Davor, "Spectroscopic and quantum chemical investigations of substituent effects on the azo-hydrazone tautomerism and acid-base properties of arylazo pyridone dyes" in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 123 (2014):37-45,
https://doi.org/10.1016/j.saa.2013.12.064 . .
31
26
29

Photocatalytic degradation of azo pyridone dye: Optimization using response surface methodology

Dostanić, Jasmina; Lončarević, Davor; Rožić, Ljiljana; Petrović, Srđan; Mijin, Dušan; Jovanović, Dušan M.

(Desalination Publ, Hopkinton, 2013)

TY  - JOUR
AU  - Dostanić, Jasmina
AU  - Lončarević, Davor
AU  - Rožić, Ljiljana
AU  - Petrović, Srđan
AU  - Mijin, Dušan
AU  - Jovanović, Dušan M.
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2517
AB  - Response surface methodology (RSM) and central composite design have been applied to describe and optimize photocatalytic degradation of azo pyridone dye using TiO2, H2O2, and simulated sun light. The mutual interactions between three independent variables, viz. H2O2 concentration, irradiation time, and TiO2 content were obtained. The results revealed that the most influential variables under selected reaction conditions were irradiation time and TiO2 content. The optimized conditions for the photocatalytic degradation of azo pyridone dye were as follows: H2O2 concentration: 130.5 mg/L, irradiation time: 54.8 min, and TiO2 content: 2.48 g/L. Under these conditions, the maximum decolorization efficiency of 96.43% was achieved. This experimental value was in good agreement with the predicted one, which proved the validity of the model. Operation cost analysis indicated that irradiation time had the major influence on total process cost. The RSM based on the central composite design was shown to be a successful technique for the optimization of the decolorization efficiency of azo pyridone dye and can be very helpful in improving the process economic feasibility. TOC analysis showed that the dye could be effectively mineralized during photocatalytic degradation.
PB  - Desalination Publ, Hopkinton
T2  - Desalination and Water Treatment
T1  - Photocatalytic degradation of azo pyridone dye: Optimization using response surface methodology
EP  - 2812
IS  - 13-15
SP  - 2802
VL  - 51
DO  - 10.1080/19443994.2012.750699
ER  - 
@article{
author = "Dostanić, Jasmina and Lončarević, Davor and Rožić, Ljiljana and Petrović, Srđan and Mijin, Dušan and Jovanović, Dušan M.",
year = "2013",
abstract = "Response surface methodology (RSM) and central composite design have been applied to describe and optimize photocatalytic degradation of azo pyridone dye using TiO2, H2O2, and simulated sun light. The mutual interactions between three independent variables, viz. H2O2 concentration, irradiation time, and TiO2 content were obtained. The results revealed that the most influential variables under selected reaction conditions were irradiation time and TiO2 content. The optimized conditions for the photocatalytic degradation of azo pyridone dye were as follows: H2O2 concentration: 130.5 mg/L, irradiation time: 54.8 min, and TiO2 content: 2.48 g/L. Under these conditions, the maximum decolorization efficiency of 96.43% was achieved. This experimental value was in good agreement with the predicted one, which proved the validity of the model. Operation cost analysis indicated that irradiation time had the major influence on total process cost. The RSM based on the central composite design was shown to be a successful technique for the optimization of the decolorization efficiency of azo pyridone dye and can be very helpful in improving the process economic feasibility. TOC analysis showed that the dye could be effectively mineralized during photocatalytic degradation.",
publisher = "Desalination Publ, Hopkinton",
journal = "Desalination and Water Treatment",
title = "Photocatalytic degradation of azo pyridone dye: Optimization using response surface methodology",
pages = "2812-2802",
number = "13-15",
volume = "51",
doi = "10.1080/19443994.2012.750699"
}
Dostanić, J., Lončarević, D., Rožić, L., Petrović, S., Mijin, D.,& Jovanović, D. M.. (2013). Photocatalytic degradation of azo pyridone dye: Optimization using response surface methodology. in Desalination and Water Treatment
Desalination Publ, Hopkinton., 51(13-15), 2802-2812.
https://doi.org/10.1080/19443994.2012.750699
Dostanić J, Lončarević D, Rožić L, Petrović S, Mijin D, Jovanović DM. Photocatalytic degradation of azo pyridone dye: Optimization using response surface methodology. in Desalination and Water Treatment. 2013;51(13-15):2802-2812.
doi:10.1080/19443994.2012.750699 .
Dostanić, Jasmina, Lončarević, Davor, Rožić, Ljiljana, Petrović, Srđan, Mijin, Dušan, Jovanović, Dušan M., "Photocatalytic degradation of azo pyridone dye: Optimization using response surface methodology" in Desalination and Water Treatment, 51, no. 13-15 (2013):2802-2812,
https://doi.org/10.1080/19443994.2012.750699 . .
1
25
25
28

Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method

Dostanić, Jasmina; Grbić, Boško; Radić, Nenad; Stefanov, Plamen; Šaponjić, Zoran; Buha, Jelena; Mijin, Dušan

(Elsevier Science Sa, Lausanne, 2012)

TY  - JOUR
AU  - Dostanić, Jasmina
AU  - Grbić, Boško
AU  - Radić, Nenad
AU  - Stefanov, Plamen
AU  - Šaponjić, Zoran
AU  - Buha, Jelena
AU  - Mijin, Dušan
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2240
AB  - In this study, the feasibility of preparing porous TiO2 films on a stainless steel substrate from a hydrothermally prepared colloidal TiO2 solution by the spray pyrolysis technique is presented. The prepared samples were annealed at different temperatures and characterized by the XPS, XRD and SEM techniques, porosimetry and specific surface area measurements. The photocatalytic activities of the resulting films were evaluated by measuring the degradation of an azo pyridone dye, used as model pollutant, under simulated sunlight conditions. The relationships between the structural and morphological characteristics of the TiO2 films and their photoactivity were observed. It was found that the photoactivity was markedly dependent on the annealing temperature. On increasing the calcination temperature from 500 degrees C to 700 degrees C, the crystallite size and the rutile content increased, whereas the specific surface area and the rate of photodegradation decreased. Calcination at 700 degrees C resulted in a completely loss of photoactivity, due to the partial transformation of anatase to rutile phase, the increased crystallite size and decreased specific surface area. Specific activity (per unit of mass and per unit of surface area) was lowered within thicker films, pointing out significance of transport phenomena through porous films (the transport of dye and the transmittance of light as immaterial reagent). Based on the obtained results, the spray pyrolysis method appears to be a good choice for the preparation of photocatalytically active TiO2 films for the removal of dye pollutants.
PB  - Elsevier Science Sa, Lausanne
T2  - Chemical Engineering Journal
T1  - Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method
EP  - 65
SP  - 57
VL  - 180
DO  - 10.1016/j.cej.2011.10.100
ER  - 
@article{
author = "Dostanić, Jasmina and Grbić, Boško and Radić, Nenad and Stefanov, Plamen and Šaponjić, Zoran and Buha, Jelena and Mijin, Dušan",
year = "2012",
abstract = "In this study, the feasibility of preparing porous TiO2 films on a stainless steel substrate from a hydrothermally prepared colloidal TiO2 solution by the spray pyrolysis technique is presented. The prepared samples were annealed at different temperatures and characterized by the XPS, XRD and SEM techniques, porosimetry and specific surface area measurements. The photocatalytic activities of the resulting films were evaluated by measuring the degradation of an azo pyridone dye, used as model pollutant, under simulated sunlight conditions. The relationships between the structural and morphological characteristics of the TiO2 films and their photoactivity were observed. It was found that the photoactivity was markedly dependent on the annealing temperature. On increasing the calcination temperature from 500 degrees C to 700 degrees C, the crystallite size and the rutile content increased, whereas the specific surface area and the rate of photodegradation decreased. Calcination at 700 degrees C resulted in a completely loss of photoactivity, due to the partial transformation of anatase to rutile phase, the increased crystallite size and decreased specific surface area. Specific activity (per unit of mass and per unit of surface area) was lowered within thicker films, pointing out significance of transport phenomena through porous films (the transport of dye and the transmittance of light as immaterial reagent). Based on the obtained results, the spray pyrolysis method appears to be a good choice for the preparation of photocatalytically active TiO2 films for the removal of dye pollutants.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Chemical Engineering Journal",
title = "Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method",
pages = "65-57",
volume = "180",
doi = "10.1016/j.cej.2011.10.100"
}
Dostanić, J., Grbić, B., Radić, N., Stefanov, P., Šaponjić, Z., Buha, J.,& Mijin, D.. (2012). Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method. in Chemical Engineering Journal
Elsevier Science Sa, Lausanne., 180, 57-65.
https://doi.org/10.1016/j.cej.2011.10.100
Dostanić J, Grbić B, Radić N, Stefanov P, Šaponjić Z, Buha J, Mijin D. Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method. in Chemical Engineering Journal. 2012;180:57-65.
doi:10.1016/j.cej.2011.10.100 .
Dostanić, Jasmina, Grbić, Boško, Radić, Nenad, Stefanov, Plamen, Šaponjić, Zoran, Buha, Jelena, Mijin, Dušan, "Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method" in Chemical Engineering Journal, 180 (2012):57-65,
https://doi.org/10.1016/j.cej.2011.10.100 . .
21
22
25

Synthesis of 5-(substituted phenylazo)-6-hydroxy-4-methyl-3-cyano-2-pyridones from ethyl 3-oxo-2-(substituted phenylazo)butanoates

Dostanić, Jasmina; Valentić, Nataša; Ušćumlić, Gordana; Mijin, Dušan

(Serbian Chemical Society, Belgrade, 2011)

TY  - JOUR
AU  - Dostanić, Jasmina
AU  - Valentić, Nataša
AU  - Ušćumlić, Gordana
AU  - Mijin, Dušan
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1803
AB  - A new procedure for the synthesis of known azo pyridone dyes is presented. A series of 5-(substituted arylazo)-6-hydroxy-4-methyl-3-cyano-2-pyridones were prepared from ethyl 3-oxo-2-(substituted phenylazo)butanoates and cyanoacetamide in acetone using potassium hydroxide as a catalyst by simple refluxing the reaction mixture. The structure of these dyes was confirmed by FT-IR, NMR and UV-Vis spectroscopy.
AB  - Novi postupak za sintezu poznatih azo-piridonskih boja je opisan u radu. Serija 5-(supstituisanih fenilazo)-6-hidroksi-4-metil-3-cijano-2-piridona je pripremljena iz etil-3-okso-2-(supstituisanih fenilazo)butanoata i cijanoacetamida u acetonu korišćenjem kalijum-hidroksida kao katalizatora uz zagrevanje.
PB  - Serbian Chemical Society, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Synthesis of 5-(substituted phenylazo)-6-hydroxy-4-methyl-3-cyano-2-pyridones from ethyl 3-oxo-2-(substituted phenylazo)butanoates
T1  - Sinteza 5-(supstituisanih fenilazo)-6-hidroksi-4-metil-3-cijano-2-piridona iz etil-3-okso-2-(supstituisanih fenilazo)butanoata
EP  - 504
IS  - 4
SP  - 499
VL  - 76
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1803
ER  - 
@article{
author = "Dostanić, Jasmina and Valentić, Nataša and Ušćumlić, Gordana and Mijin, Dušan",
year = "2011",
abstract = "A new procedure for the synthesis of known azo pyridone dyes is presented. A series of 5-(substituted arylazo)-6-hydroxy-4-methyl-3-cyano-2-pyridones were prepared from ethyl 3-oxo-2-(substituted phenylazo)butanoates and cyanoacetamide in acetone using potassium hydroxide as a catalyst by simple refluxing the reaction mixture. The structure of these dyes was confirmed by FT-IR, NMR and UV-Vis spectroscopy., Novi postupak za sintezu poznatih azo-piridonskih boja je opisan u radu. Serija 5-(supstituisanih fenilazo)-6-hidroksi-4-metil-3-cijano-2-piridona je pripremljena iz etil-3-okso-2-(supstituisanih fenilazo)butanoata i cijanoacetamida u acetonu korišćenjem kalijum-hidroksida kao katalizatora uz zagrevanje.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Synthesis of 5-(substituted phenylazo)-6-hydroxy-4-methyl-3-cyano-2-pyridones from ethyl 3-oxo-2-(substituted phenylazo)butanoates, Sinteza 5-(supstituisanih fenilazo)-6-hidroksi-4-metil-3-cijano-2-piridona iz etil-3-okso-2-(supstituisanih fenilazo)butanoata",
pages = "504-499",
number = "4",
volume = "76",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1803"
}
Dostanić, J., Valentić, N., Ušćumlić, G.,& Mijin, D.. (2011). Synthesis of 5-(substituted phenylazo)-6-hydroxy-4-methyl-3-cyano-2-pyridones from ethyl 3-oxo-2-(substituted phenylazo)butanoates. in Journal of the Serbian Chemical Society
Serbian Chemical Society, Belgrade., 76(4), 499-504.
https://hdl.handle.net/21.15107/rcub_technorep_1803
Dostanić J, Valentić N, Ušćumlić G, Mijin D. Synthesis of 5-(substituted phenylazo)-6-hydroxy-4-methyl-3-cyano-2-pyridones from ethyl 3-oxo-2-(substituted phenylazo)butanoates. in Journal of the Serbian Chemical Society. 2011;76(4):499-504.
https://hdl.handle.net/21.15107/rcub_technorep_1803 .
Dostanić, Jasmina, Valentić, Nataša, Ušćumlić, Gordana, Mijin, Dušan, "Synthesis of 5-(substituted phenylazo)-6-hydroxy-4-methyl-3-cyano-2-pyridones from ethyl 3-oxo-2-(substituted phenylazo)butanoates" in Journal of the Serbian Chemical Society, 76, no. 4 (2011):499-504,
https://hdl.handle.net/21.15107/rcub_technorep_1803 .
15
22

Influence of process parameters on the photodegradation of synthesized azo pyridone dye in TiO2 water suspension under simulated sunlight

Dostanić, Jasmina; Lončarević, Davor; Banković, Predrag; Cvetković, Olga; Jovanović, Dušan M.; Mijin, Dušan

(Taylor & Francis Inc, Philadelphia, 2011)

TY  - JOUR
AU  - Dostanić, Jasmina
AU  - Lončarević, Davor
AU  - Banković, Predrag
AU  - Cvetković, Olga
AU  - Jovanović, Dušan M.
AU  - Mijin, Dušan
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1924
AB  - Photocatalytic degradation of synthesized azo pyridone dye (5-(4-sulpho phenylazo)-6-hydroxy-4-methyl-3-cyano-2-pyridone), in aqueous solutions by simulated sunlight in the presence of commercial TiO2, Aeroxide P25, was studied. The reaction kinetics analysis showed that photodegradation exhibits pseudo first-order kinetics according to Langmuir-Hinshelwood model. The effects of various process parameters on the photocatalytic degradation were investigated. The optimal catalyst content and pH were determined. A decrease in the reaction rate was observed upon the increase of the initial dye concentration. Degradation of the dye was enhanced by hydrogen peroxide, but it was inhibited by ethanol. The influence of temperature was studied, and the energy of activation was determined. According to total organic carbon (TOC) analysis, 54% of TOC remained when 100% of the dye was decolorized. Although the intermediates were not determined in this study, the TOC results clearly indicate their presence during the reaction. In addition, photocatalytic degradation of simulated dyehouse effluents, containing tested azo pyridone dye and associated auxiliary chemicals was investigated.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Journal of Environmental Science and Health Part A-Toxic/Hazardous Substances & Environmental Engine
T1  - Influence of process parameters on the photodegradation of synthesized azo pyridone dye in TiO2 water suspension under simulated sunlight
EP  - 79
IS  - 1
SP  - 70
VL  - 46
DO  - 10.1080/10934529.2011.526905
ER  - 
@article{
author = "Dostanić, Jasmina and Lončarević, Davor and Banković, Predrag and Cvetković, Olga and Jovanović, Dušan M. and Mijin, Dušan",
year = "2011",
abstract = "Photocatalytic degradation of synthesized azo pyridone dye (5-(4-sulpho phenylazo)-6-hydroxy-4-methyl-3-cyano-2-pyridone), in aqueous solutions by simulated sunlight in the presence of commercial TiO2, Aeroxide P25, was studied. The reaction kinetics analysis showed that photodegradation exhibits pseudo first-order kinetics according to Langmuir-Hinshelwood model. The effects of various process parameters on the photocatalytic degradation were investigated. The optimal catalyst content and pH were determined. A decrease in the reaction rate was observed upon the increase of the initial dye concentration. Degradation of the dye was enhanced by hydrogen peroxide, but it was inhibited by ethanol. The influence of temperature was studied, and the energy of activation was determined. According to total organic carbon (TOC) analysis, 54% of TOC remained when 100% of the dye was decolorized. Although the intermediates were not determined in this study, the TOC results clearly indicate their presence during the reaction. In addition, photocatalytic degradation of simulated dyehouse effluents, containing tested azo pyridone dye and associated auxiliary chemicals was investigated.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Journal of Environmental Science and Health Part A-Toxic/Hazardous Substances & Environmental Engine",
title = "Influence of process parameters on the photodegradation of synthesized azo pyridone dye in TiO2 water suspension under simulated sunlight",
pages = "79-70",
number = "1",
volume = "46",
doi = "10.1080/10934529.2011.526905"
}
Dostanić, J., Lončarević, D., Banković, P., Cvetković, O., Jovanović, D. M.,& Mijin, D.. (2011). Influence of process parameters on the photodegradation of synthesized azo pyridone dye in TiO2 water suspension under simulated sunlight. in Journal of Environmental Science and Health Part A-Toxic/Hazardous Substances & Environmental Engine
Taylor & Francis Inc, Philadelphia., 46(1), 70-79.
https://doi.org/10.1080/10934529.2011.526905
Dostanić J, Lončarević D, Banković P, Cvetković O, Jovanović DM, Mijin D. Influence of process parameters on the photodegradation of synthesized azo pyridone dye in TiO2 water suspension under simulated sunlight. in Journal of Environmental Science and Health Part A-Toxic/Hazardous Substances & Environmental Engine. 2011;46(1):70-79.
doi:10.1080/10934529.2011.526905 .
Dostanić, Jasmina, Lončarević, Davor, Banković, Predrag, Cvetković, Olga, Jovanović, Dušan M., Mijin, Dušan, "Influence of process parameters on the photodegradation of synthesized azo pyridone dye in TiO2 water suspension under simulated sunlight" in Journal of Environmental Science and Health Part A-Toxic/Hazardous Substances & Environmental Engine, 46, no. 1 (2011):70-79,
https://doi.org/10.1080/10934529.2011.526905 . .
23
25
30

The influence of bonding agents in improving interactionsin composite propellants determined using image analysis

Dostanić, Jasmina; Volkov-Husović, Tatjana; Ušćumlić, Gordana; Jančić-Heinemann, Radmila; Mijin, Dušan

(Wiley, Hoboken, 2008)

TY  - JOUR
AU  - Dostanić, Jasmina
AU  - Volkov-Husović, Tatjana
AU  - Ušćumlić, Gordana
AU  - Jančić-Heinemann, Radmila
AU  - Mijin, Dušan
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1229
AB  - Binder-oxidizer interactions in rocket composite propellants can be improved using adequate bonding agents. In the present work, the effectiveness of different 1,3,5-trisubstituted isocyanurates was determined by stereo and metallographic microscopy and using the software package Image-Pro Plus. The chemical analysis of samples was performed by a scanning electron microscope equipped for energy dispersive spectrometry.
PB  - Wiley, Hoboken
T2  - Journal of Microscopy
T1  - The influence of bonding agents in improving interactionsin composite propellants determined using image analysis
EP  - 533
IS  - 3
SP  - 530
VL  - 232
DO  - 10.1111/j.1365-2818.2008.02115.x
ER  - 
@article{
author = "Dostanić, Jasmina and Volkov-Husović, Tatjana and Ušćumlić, Gordana and Jančić-Heinemann, Radmila and Mijin, Dušan",
year = "2008",
abstract = "Binder-oxidizer interactions in rocket composite propellants can be improved using adequate bonding agents. In the present work, the effectiveness of different 1,3,5-trisubstituted isocyanurates was determined by stereo and metallographic microscopy and using the software package Image-Pro Plus. The chemical analysis of samples was performed by a scanning electron microscope equipped for energy dispersive spectrometry.",
publisher = "Wiley, Hoboken",
journal = "Journal of Microscopy",
title = "The influence of bonding agents in improving interactionsin composite propellants determined using image analysis",
pages = "533-530",
number = "3",
volume = "232",
doi = "10.1111/j.1365-2818.2008.02115.x"
}
Dostanić, J., Volkov-Husović, T., Ušćumlić, G., Jančić-Heinemann, R.,& Mijin, D.. (2008). The influence of bonding agents in improving interactionsin composite propellants determined using image analysis. in Journal of Microscopy
Wiley, Hoboken., 232(3), 530-533.
https://doi.org/10.1111/j.1365-2818.2008.02115.x
Dostanić J, Volkov-Husović T, Ušćumlić G, Jančić-Heinemann R, Mijin D. The influence of bonding agents in improving interactionsin composite propellants determined using image analysis. in Journal of Microscopy. 2008;232(3):530-533.
doi:10.1111/j.1365-2818.2008.02115.x .
Dostanić, Jasmina, Volkov-Husović, Tatjana, Ušćumlić, Gordana, Jančić-Heinemann, Radmila, Mijin, Dušan, "The influence of bonding agents in improving interactionsin composite propellants determined using image analysis" in Journal of Microscopy, 232, no. 3 (2008):530-533,
https://doi.org/10.1111/j.1365-2818.2008.02115.x . .
6
4
6

The use of image analysis for the study of interfacial bonding in solid composite propellant

Dostanić, Jasmina; Ušćumlić, Gordana; Volkov-Husović, Tatjana; Jančić-Heinemann, Radmila; Mijin, Dušan

(Serbian Chemical Society, Belgrade, 2007)

TY  - JOUR
AU  - Dostanić, Jasmina
AU  - Ušćumlić, Gordana
AU  - Volkov-Husović, Tatjana
AU  - Jančić-Heinemann, Radmila
AU  - Mijin, Dušan
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1168
AB  - In the framework of this research, the program Image Pro Plus was applied for determining the polymer-oxidizer interactions in HTPB-based composite propellants. In order to improve the interactions, different bonding agents were used, and their efficiency was analyzed. The determination of the quantity, area and radius of non-bonded oxidizer crystals is presented. The position of formed cracks in the specimen and their area have a great influence on the mechanical properties of composite propellant. The preparation of the composite propellant in order to enable the photographing of their structure by means of stereoscopic and metallographic microscopes with the digital camera is also described as well. .
AB  - U okviru istraživanja program Image Pro Plus je primenjen za određivanje interakcija između polimera i oksidansa u kompozitnim gorivima na bazi HTPB. U cilju poboljšanja ovih interakcija, korišćeni su različiti vezujući agensi i analizirana je njihova efikasnost. U radu je takođe vršeno određivanje količine, udela, površine i prečnika čestica, koje nisu vezane za polimer. Površina formiranih pukotina i njihova raspodela u uzorku imaju veliki uticaj na mehanička svojstva kompozita. Priprema uzoraka kompozitnih goriva za snimanje njihove morfološke strukture pomoću stereomikroskopa i metalografskog mikroskopa sa digitalnom kamerom je takođe opisana. .
PB  - Serbian Chemical Society, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - The use of image analysis for the study of interfacial bonding in solid composite propellant
T1  - Korišćenje analize slike za određivanje interakcija u čvrstim kompozitnim gorivima
EP  - 1030
IS  - 10
SP  - 1023
VL  - 72
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1168
ER  - 
@article{
author = "Dostanić, Jasmina and Ušćumlić, Gordana and Volkov-Husović, Tatjana and Jančić-Heinemann, Radmila and Mijin, Dušan",
year = "2007",
abstract = "In the framework of this research, the program Image Pro Plus was applied for determining the polymer-oxidizer interactions in HTPB-based composite propellants. In order to improve the interactions, different bonding agents were used, and their efficiency was analyzed. The determination of the quantity, area and radius of non-bonded oxidizer crystals is presented. The position of formed cracks in the specimen and their area have a great influence on the mechanical properties of composite propellant. The preparation of the composite propellant in order to enable the photographing of their structure by means of stereoscopic and metallographic microscopes with the digital camera is also described as well. ., U okviru istraživanja program Image Pro Plus je primenjen za određivanje interakcija između polimera i oksidansa u kompozitnim gorivima na bazi HTPB. U cilju poboljšanja ovih interakcija, korišćeni su različiti vezujući agensi i analizirana je njihova efikasnost. U radu je takođe vršeno određivanje količine, udela, površine i prečnika čestica, koje nisu vezane za polimer. Površina formiranih pukotina i njihova raspodela u uzorku imaju veliki uticaj na mehanička svojstva kompozita. Priprema uzoraka kompozitnih goriva za snimanje njihove morfološke strukture pomoću stereomikroskopa i metalografskog mikroskopa sa digitalnom kamerom je takođe opisana. .",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "The use of image analysis for the study of interfacial bonding in solid composite propellant, Korišćenje analize slike za određivanje interakcija u čvrstim kompozitnim gorivima",
pages = "1030-1023",
number = "10",
volume = "72",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1168"
}
Dostanić, J., Ušćumlić, G., Volkov-Husović, T., Jančić-Heinemann, R.,& Mijin, D.. (2007). The use of image analysis for the study of interfacial bonding in solid composite propellant. in Journal of the Serbian Chemical Society
Serbian Chemical Society, Belgrade., 72(10), 1023-1030.
https://hdl.handle.net/21.15107/rcub_technorep_1168
Dostanić J, Ušćumlić G, Volkov-Husović T, Jančić-Heinemann R, Mijin D. The use of image analysis for the study of interfacial bonding in solid composite propellant. in Journal of the Serbian Chemical Society. 2007;72(10):1023-1030.
https://hdl.handle.net/21.15107/rcub_technorep_1168 .
Dostanić, Jasmina, Ušćumlić, Gordana, Volkov-Husović, Tatjana, Jančić-Heinemann, Radmila, Mijin, Dušan, "The use of image analysis for the study of interfacial bonding in solid composite propellant" in Journal of the Serbian Chemical Society, 72, no. 10 (2007):1023-1030,
https://hdl.handle.net/21.15107/rcub_technorep_1168 .
3
7

The use of image analysis for the interaction of 1,3,5-trisubstituted isocyanurates with oxidizer and different binders in composite materials

Dostanić, Jasmina; Barbu, Mihela; Jančić-Heinemann, Radmila; Volkov-Husović, Tatjana; Ušćumlić, Gordana; Mljin, Dušan

(Association of Chemical Engineers of Serbia, 2006)

TY  - JOUR
AU  - Dostanić, Jasmina
AU  - Barbu, Mihela
AU  - Jančić-Heinemann, Radmila
AU  - Volkov-Husović, Tatjana
AU  - Ušćumlić, Gordana
AU  - Mljin, Dušan
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/969
AB  - Composite propellants are non-homogenous propellants and comprise primarily crystalline oxidizer and metal fuels uniformly suspended in a resin binder. The strength of the bonds between the polymer matrix and the oxidizer determine the mechanical properties of composite propellants. In order to achieve good mechanical properties of the fuel, bonding agents are added to the mixture. The role of the bonding agents is to enable good interactions (interphase) between the polymer matrix and the oxidizer grains. The level of interconnection between the phases could be measured by using the surface obtained by cutting the composite material and observing the resulting surface. A problem in the visualization of such a material is to enable the visibility of the polymer matrix and the grains in the image as both phases are white. There are two possible ways to overcome this problem: to add a pigment into the matrix polymer and to color the matrix and make it different from the grain color. Another possibility is to find a solvent for one of the phases and to dissolve one of the phases in an appropriate solvent so that the remaining phase could be stained, photographed and analyzed using the image analysis program. The morphological characteristics of the image could be established and analyzed. The topic of this study was to establish the conditions of preparation of composite propellants containing ammonium per chlorate and HMX and RDX as oxidizers, and polymer of the polybutadiene type and 1,3,5-trisubstituted isocyanurates as bonding agents. The bonding phenomenon was investigated by optical microscopy. The established procedure of preparation will enable the visualization of the composite structure and the morphological characteristics of the surface will be obtained. From the morphological properties of the obtained composite, it will be possible to select a suitable polymer for the preparation of uniformly distributed composite propellant.
AB  - Kompozitna goriva se mogu posmatrati kao kompozitni materijali koji sadrže kristalni oksidans, polimernu matricu i metalnu komponentu. Jačina interakcije između oksidansa i polimerne matrice određuje mehanička svojstva kompozitnih materijala. Da bi se dobila dobra mehanička svojstva goriva, u materijale se dodaje "bonding" agens, koji obezbeđuje dobru interakciju između polimerne matrice i oksidansa. Predmet ovog rada je utvrđivanje uslova pripreme uzoraka kompozitnih goriva za snimanje njihove morfološke strukture pomoću stereo mikroskopa i digitalne kamere. Dobijeni snimci su analizirani korišćenjem programa za analizu sliku i ukazuju na različito ponašanje uzoraka u zavisnosti od korišćenih komponenata.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - The use of image analysis for the interaction of 1,3,5-trisubstituted isocyanurates with oxidizer and different binders in composite materials
T1  - Korišćenje analize slike za utvrđivanje interakcije 1,3,5-trisupstituisanih izocijanurata sa oksidansom i različitim vezivima u kompozitnim gorivima
EP  - 77
IS  - 3-4
SP  - 72
VL  - 60
DO  - 10.2298/HEMIND0604072D
ER  - 
@article{
author = "Dostanić, Jasmina and Barbu, Mihela and Jančić-Heinemann, Radmila and Volkov-Husović, Tatjana and Ušćumlić, Gordana and Mljin, Dušan",
year = "2006",
abstract = "Composite propellants are non-homogenous propellants and comprise primarily crystalline oxidizer and metal fuels uniformly suspended in a resin binder. The strength of the bonds between the polymer matrix and the oxidizer determine the mechanical properties of composite propellants. In order to achieve good mechanical properties of the fuel, bonding agents are added to the mixture. The role of the bonding agents is to enable good interactions (interphase) between the polymer matrix and the oxidizer grains. The level of interconnection between the phases could be measured by using the surface obtained by cutting the composite material and observing the resulting surface. A problem in the visualization of such a material is to enable the visibility of the polymer matrix and the grains in the image as both phases are white. There are two possible ways to overcome this problem: to add a pigment into the matrix polymer and to color the matrix and make it different from the grain color. Another possibility is to find a solvent for one of the phases and to dissolve one of the phases in an appropriate solvent so that the remaining phase could be stained, photographed and analyzed using the image analysis program. The morphological characteristics of the image could be established and analyzed. The topic of this study was to establish the conditions of preparation of composite propellants containing ammonium per chlorate and HMX and RDX as oxidizers, and polymer of the polybutadiene type and 1,3,5-trisubstituted isocyanurates as bonding agents. The bonding phenomenon was investigated by optical microscopy. The established procedure of preparation will enable the visualization of the composite structure and the morphological characteristics of the surface will be obtained. From the morphological properties of the obtained composite, it will be possible to select a suitable polymer for the preparation of uniformly distributed composite propellant., Kompozitna goriva se mogu posmatrati kao kompozitni materijali koji sadrže kristalni oksidans, polimernu matricu i metalnu komponentu. Jačina interakcije između oksidansa i polimerne matrice određuje mehanička svojstva kompozitnih materijala. Da bi se dobila dobra mehanička svojstva goriva, u materijale se dodaje "bonding" agens, koji obezbeđuje dobru interakciju između polimerne matrice i oksidansa. Predmet ovog rada je utvrđivanje uslova pripreme uzoraka kompozitnih goriva za snimanje njihove morfološke strukture pomoću stereo mikroskopa i digitalne kamere. Dobijeni snimci su analizirani korišćenjem programa za analizu sliku i ukazuju na različito ponašanje uzoraka u zavisnosti od korišćenih komponenata.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "The use of image analysis for the interaction of 1,3,5-trisubstituted isocyanurates with oxidizer and different binders in composite materials, Korišćenje analize slike za utvrđivanje interakcije 1,3,5-trisupstituisanih izocijanurata sa oksidansom i različitim vezivima u kompozitnim gorivima",
pages = "77-72",
number = "3-4",
volume = "60",
doi = "10.2298/HEMIND0604072D"
}
Dostanić, J., Barbu, M., Jančić-Heinemann, R., Volkov-Husović, T., Ušćumlić, G.,& Mljin, D.. (2006). The use of image analysis for the interaction of 1,3,5-trisubstituted isocyanurates with oxidizer and different binders in composite materials. in Hemijska industrija
Association of Chemical Engineers of Serbia., 60(3-4), 72-77.
https://doi.org/10.2298/HEMIND0604072D
Dostanić J, Barbu M, Jančić-Heinemann R, Volkov-Husović T, Ušćumlić G, Mljin D. The use of image analysis for the interaction of 1,3,5-trisubstituted isocyanurates with oxidizer and different binders in composite materials. in Hemijska industrija. 2006;60(3-4):72-77.
doi:10.2298/HEMIND0604072D .
Dostanić, Jasmina, Barbu, Mihela, Jančić-Heinemann, Radmila, Volkov-Husović, Tatjana, Ušćumlić, Gordana, Mljin, Dušan, "The use of image analysis for the interaction of 1,3,5-trisubstituted isocyanurates with oxidizer and different binders in composite materials" in Hemijska industrija, 60, no. 3-4 (2006):72-77,
https://doi.org/10.2298/HEMIND0604072D . .