Degradation of crystal violet over heterogeneous TiO2-based catalysts: The effect of process parameters
Аутори
Vasić, Marija B.Ranđelović, Marjan S.
Momčilović, Milan Z.
Matović, Branko
Zarubica, Aleksandra R.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
In this study, modified sol-gel method was employed to synthesize the pure and Zr-doped titania catalysts. Brunauer-Emmett-Teller (BET) method was applied to determine porosity, X-ray diffraction (XRD) analysis was used to study crystal structure, scanning electron microscopy (SEM) was used to investigate morphology and Fourier transform infrared spectroscopy (FTIR) was used to examine surface properties/total acidity of the obtained catalysts samples. Photocatalytic activity was tested in the reaction of crystal violet (CV) dye decolourization/degradation under UV light irradiation. The effects of several photocatalysis operational parameters were considered, such as catalyst dosage, initial dye concentrations, duration of UV irradiation treatment, as well as catalysts calcination temperatures and dopant amounts. The obtained results indicated faster dye decolourization/degradation with the increase of the catalyst dosage and the decrease of initial CV concentrations. The Zr-doping af...fects photocatalytic properties, i.e. CV decolourization/degradation of the prepared catalytic materials. Thus, addition of 5 wt.% of ZrO2 to titania increases photocatalytic effect for similar to 15% and addition of 10 wt.% of ZrO2 improves the photocatalytic efficiency of titania for nearly 30%.
Кључне речи:
titania / Zr-doping / nanopowders / heterogeneous catalysts / photocatalytic activityИзвор:
Processing and Application of Ceramics, 2016, 10, 3, 189-198Финансирање / пројекти:
- Синтеза, процесирање и карактеризација наноструктурних материјала за примену у области енергије, механичког инжењерства, заштите животне стредине и биомедицине (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45012)
- Комбинаторне библиотеке хетерогених катализатора, природних производа, модификованих природних производа и њихових аналога: пут ка новим биолошки активним агенсима (RS-MESTD-Basic Research (BR or ON)-172061)
DOI: 10.2298/PAC1603189V
ISSN: 1820-6131; 2406-1034
WoS: 000389218100009
Scopus: 2-s2.0-84990182597
Колекције
Институција/група
VinčaTY - JOUR AU - Vasić, Marija B. AU - Ranđelović, Marjan S. AU - Momčilović, Milan Z. AU - Matović, Branko AU - Zarubica, Aleksandra R. PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1329 AB - In this study, modified sol-gel method was employed to synthesize the pure and Zr-doped titania catalysts. Brunauer-Emmett-Teller (BET) method was applied to determine porosity, X-ray diffraction (XRD) analysis was used to study crystal structure, scanning electron microscopy (SEM) was used to investigate morphology and Fourier transform infrared spectroscopy (FTIR) was used to examine surface properties/total acidity of the obtained catalysts samples. Photocatalytic activity was tested in the reaction of crystal violet (CV) dye decolourization/degradation under UV light irradiation. The effects of several photocatalysis operational parameters were considered, such as catalyst dosage, initial dye concentrations, duration of UV irradiation treatment, as well as catalysts calcination temperatures and dopant amounts. The obtained results indicated faster dye decolourization/degradation with the increase of the catalyst dosage and the decrease of initial CV concentrations. The Zr-doping affects photocatalytic properties, i.e. CV decolourization/degradation of the prepared catalytic materials. Thus, addition of 5 wt.% of ZrO2 to titania increases photocatalytic effect for similar to 15% and addition of 10 wt.% of ZrO2 improves the photocatalytic efficiency of titania for nearly 30%. T2 - Processing and Application of Ceramics T1 - Degradation of crystal violet over heterogeneous TiO2-based catalysts: The effect of process parameters VL - 10 IS - 3 SP - 189 EP - 198 DO - 10.2298/PAC1603189V ER -
@article{ author = "Vasić, Marija B. and Ranđelović, Marjan S. and Momčilović, Milan Z. and Matović, Branko and Zarubica, Aleksandra R.", year = "2016", abstract = "In this study, modified sol-gel method was employed to synthesize the pure and Zr-doped titania catalysts. Brunauer-Emmett-Teller (BET) method was applied to determine porosity, X-ray diffraction (XRD) analysis was used to study crystal structure, scanning electron microscopy (SEM) was used to investigate morphology and Fourier transform infrared spectroscopy (FTIR) was used to examine surface properties/total acidity of the obtained catalysts samples. Photocatalytic activity was tested in the reaction of crystal violet (CV) dye decolourization/degradation under UV light irradiation. The effects of several photocatalysis operational parameters were considered, such as catalyst dosage, initial dye concentrations, duration of UV irradiation treatment, as well as catalysts calcination temperatures and dopant amounts. The obtained results indicated faster dye decolourization/degradation with the increase of the catalyst dosage and the decrease of initial CV concentrations. The Zr-doping affects photocatalytic properties, i.e. CV decolourization/degradation of the prepared catalytic materials. Thus, addition of 5 wt.% of ZrO2 to titania increases photocatalytic effect for similar to 15% and addition of 10 wt.% of ZrO2 improves the photocatalytic efficiency of titania for nearly 30%.", journal = "Processing and Application of Ceramics", title = "Degradation of crystal violet over heterogeneous TiO2-based catalysts: The effect of process parameters", volume = "10", number = "3", pages = "189-198", doi = "10.2298/PAC1603189V" }
Vasić, M. B., Ranđelović, M. S., Momčilović, M. Z., Matović, B.,& Zarubica, A. R.. (2016). Degradation of crystal violet over heterogeneous TiO2-based catalysts: The effect of process parameters. in Processing and Application of Ceramics, 10(3), 189-198. https://doi.org/10.2298/PAC1603189V
Vasić MB, Ranđelović MS, Momčilović MZ, Matović B, Zarubica AR. Degradation of crystal violet over heterogeneous TiO2-based catalysts: The effect of process parameters. in Processing and Application of Ceramics. 2016;10(3):189-198. doi:10.2298/PAC1603189V .
Vasić, Marija B., Ranđelović, Marjan S., Momčilović, Milan Z., Matović, Branko, Zarubica, Aleksandra R., "Degradation of crystal violet over heterogeneous TiO2-based catalysts: The effect of process parameters" in Processing and Application of Ceramics, 10, no. 3 (2016):189-198, https://doi.org/10.2298/PAC1603189V . .