Decolorization of crystal violet over TiO2 and TiO2 doped with zirconia photocatalysts
| Autor: | Nikola Stojkovic, Marjan Randjelovic, Aleksandra R. Zarubica, Marija Vasić, Branko Matović, Jelena Z. Mitrović |
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| Rok vydání: | 2017 |
| Předmět: |
inorganic chemicals
Materials science crystal violet General Chemical Engineering doping 02 engineering and technology lcsh:Chemical technology 010402 general chemistry Photochemistry 01 natural sciences Catalysis chemistry.chemical_compound lcsh:TP1-1185 titania Cubic zirconia Irradiation Crystal violet Fourier transform infrared spectroscopy heterogeneous catalysts Doping technology industry and agriculture process parameters General Chemistry 021001 nanoscience & nanotechnology Decomposition 0104 chemical sciences chemistry Photocatalysis 0210 nano-technology decolorization/degradation Nuclear chemistry |
| Zdroj: | Hemijska industrija Hemijska Industrija, Vol 71, Iss 3, Pp 259-269 (2017) |
| ISSN: | 2217-7426 0367-598X |
| Popis: | Titania based catalyst and TiO2 doped with zirconia were prepared by modified sol–gel method. The synthesized catalysts samples were characterized by BET, XRD, SEM and FTIR techniques. Photocatalytic activity was tested in the reaction of crystal violet (CV) dye decolorization/decomposition under UV light irradiation. The effect of several operational parameters, such as catalyst dosage, initial dye concentrations, duration of UV irradiation treatment and number of reaction cycles were also considered. The obtained results indicated faster dye decolorization with the increase of the catalyst amount and a decrease of initial CV concentrations. An influence of doping with zirconia on the physico-chemical properties of bare titania was studied. The doping procedure had affected photocatalytic properties of the final catalytic material, and had improved photocatalytic performances of doped catalyst on crystal violet decolorization/degradation in comparison to bare titania. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. 1612008, Grant no. 45012 and Grant no. 172061] |
| Databáze: | OpenAIRE |
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