Preparation of Z-scheme WO_3(H_2O)_(0.333)/Ag_3PO_4 composites with enhanced photocatalytic activity and durability

作     者：Zhen Li Xia Wang Jinfeng Zhang Changhao Liang Luhua Lu Kai Dai 李真;王侠;张金锋;梁长浩;芦露华;代凯

作者机构：School of Physics and Electronic Information Anhui Key Laboratory of Energetic Materials Huaibei Normal University Huaibei 235000 Anhui China Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology Institute of Solid State Physics Chinese Academyof Sciences Hefei 230031 Anhui China Department of Mechanical Engineering and Design Botou Vocational College Cangzhou 062150 Hebei China Engineering Research Center of Nano-Geomaterials of Ministry of Education China University of Geosciences Wuhan 430074 Hubei China 

基　　金：supported by the National Natural Science Foundation of China(51572103 and 51502106) the Distinguished Young Scholar of Anhui Province(1808085J14) the Foundation for Young Talents in College of Anhui Province(gxyqZD2017051) the Key Foundation of Educational Commission of Anhui Province(KJ2016SD53) the Innovation Team of Design and Application of Advanced Energetic Materials(KJ2015TD003) 

出 版 物：《Chinese Journal of Catalysis》 (催化学报（英文）)

年 卷 期：2019年第40卷第3期

页      码：326-334页

摘      要：Ag3PO4 is widely used in the field of photocatalysis because of its unique activity. However, photocorrosion limits its practical application. Therefore, it is very urgent to find a solution to improve the light corrosion resistance of Ag3PO4. Herein, the Z-scheme WO3(H2O)0.333/Ag3PO4 composites are successfully prepared through microwave hydrothermal and simple stirring. The WO3(H2O)0.333/Ag3PO4 composites are characterized by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy and UV-Vis spectroscopy. In the degradation of organic pollutants, WO3(H2O)0.333/Ag3PO4 composites exhibit excellent performance under visible light. This is mainly attributed to the synergy of WO3(H2O)0.333 and Ag3PO4. Especially, the photocatalytic activity of 15%WO3(H2O)0.333/Ag3PO4 is the highest, and the methylene blue can be completely degraded in 4 min. In addition, the stability of the composites is also greatly enhanced. After five cycles of testing, the photocatalytic activity of 15%WO3(H2O)0.333/Ag3PO4 is not obviously decreased. However, the degradation efficiency of Ag3PO4 was only 20.2%. This indicates that adding WO3(H2O)0.333 can significantly improve the photoetching resistance of Ag3PO4. Finally, Z-scheme photocatalytic mechanism is investigated.

主 题 词：Photocatalysis Ag3PO4 WO3(H2O)0.333 Composites Z-scheme 

学科分类：081705[081705] 08[工学] 0817[工学-轻工类] 

核心收录：

D　O　I：10.1016/S1872-2067(18)63165-1

馆 藏 号：203455569...