TiO2/g-C3N4 nanosheets hybrid photocatalyst with enhanced photocatalytic activity under visible light irradiation

被引：58
作者：
Wu, Yongmei [1 ,2 ]
Tao, Li [2 ]
Zhao, Jie [1 ]
Yue, Xiu [1 ]
Deng, Wenye [1 ]
Li, Yingxuan [1 ]
Wang, Chuanyi [1 ]
机构：
[1] Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Key Lab Funct Mat & Devices Special Environm, Lab Environm Sci & Technol, 40-1 South Beijing Rd, Urumqi 830011, Xinjiang, Peoples R China
[2] Xingjiang Inst Engn, Dept Chem & Environm Engn, Urumqi 830091, Peoples R China
来源：
RESEARCH ON CHEMICAL INTERMEDIATES | 2016年 / 42卷 / 04期
基金：
中国博士后科学基金;
关键词：
TiO2; Graphitic carbon nitride; Hybrid composites; Nanosheets; Photocatalyst; GRAPHITIC CARBON NITRIDE; TIO2; NANOSHEETS; PHOTODEGRADATION PERFORMANCE; COMPOSITE PHOTOCATALYST; HYDROGEN-PRODUCTION; G-C3N4; GROWTH; C3N4; PHOTOREACTIVITY; NANOCRYSTALS;
D O I：
10.1007/s11164-015-2234-8
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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, N-2 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.
引用
收藏
页码：3609 / 3624
页数：16
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