TiO2/g-C3N4 nanosheets hybrid photocatalyst with enhanced photocatalytic activity under visible light irradiation
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- 作者：Yongmei Wu ; Li Tao ; Jie Zhao ; Xiu Yue ; Wenye Deng…
- 关键词：TiO2 ; Graphitic carbon nitride ; Hybrid composites ; Nanosheets ; Photocatalyst
- 刊名：Research on Chemical Intermediates
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：42
- 期：4
- 页码：3609-3624
- 全文大小：2,739 KB
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Li Tao (2)
Jie Zhao (1)
Xiu Yue (1)
Wenye Deng (1)
Yingxuan Li (1)
Chuanyi Wang (1)
1. Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Science, 40-1 South Beijing Road, Ürümqi, 830011, Xinjiang, People’s Republic of China
2. Department of Chemical and Environmental Engineering, Xingjiang Institute of Engineering, Ürümqi, 830091, People’s Republic of China - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Catalysis
Physical Chemistry
Inorganic Chemistry - 出版者：Springer Netherlands
- ISSN：1568-5675
文摘
The nanosheets TiO2/g-C3N4 hybrid material with efficient visible-light photocatalytic activity was prepared by a facile solvothermal method. The as-prepared TiO2/g-C3N4 nanosheets composite was thoroughly characterized by X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, N2 adsorption–desorption analysis, UV–Vis diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. As evaluated by the degradation of methylene blue under visible light irradiation, TiO2/g-C3N4 hybrid composites exhibit much higher photocatalytic activity than pristine g-C3N4 and TiO2, respectively. The significant enhancement in photodegradation activity over the TiO2/g-C3N4 photocatalyst can be ascribed to the combined effects of the nanosheet structure and subsequent efficient separation of photogenerated charge carriers. A tentative mechanism for the photodegradation process was proposed.