51. Synthesis and photocatalytic property of V2O5@TiO2 core-shell microspheres towards gaseous benzene
- Author
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Chao Zhang, Wei Jin, Yangfan Li, Min Zhou, Linlin Wang, Zhuoyin Peng, Yueli Liu, and Zhaolong Li
- Subjects
Materials science ,02 engineering and technology ,General Chemistry ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Photochemistry ,01 natural sciences ,Catalysis ,Hydrothermal circulation ,0104 chemical sciences ,Microsphere ,chemistry.chemical_compound ,chemistry ,Photocatalysis ,Irradiation ,0210 nano-technology ,Benzene ,Photodegradation ,Visible spectrum - Abstract
In the present work, V2O5 microspheres with the diameters ranging from 1 to 2 μm are prepared by a facile hydrothermal progress, and then V2O5@TiO2 core-shell microspheres are successfully synthesized by a solution method. It is found that the light absorption intensity of V2O5@TiO2 core-shell microspheres is greatly enhanced compared with those of V2O5 microspheres and P25 in UV and visible light ranges. The photodegradation rate towards gaseous benzene of V2O5@TiO2-20% core-shell microspheres is the best one, and it will increase from 27.8% and 10% (pure V2O5 microspheres) to be 100% and 71.8% after 75 min’ irradiation under UV and visible light irradiation, respectively. The reason lies in the fact that the formation of V2O5@TiO2 core-shell microspheres may favor for the light absorption as well as the effective separation of the photoexcited electrons and holes. more...
- Published
- 2019
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