文献类型：期刊文献

英文题名：Visible-light-driven Ag2MoO4/Ag3PO4 composites with enhanced photocatalytic activity

作者：Cao, Wenrong[1];An, Yanting[1];Chen, Lifang[1];Qi, Zhiwen[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2017

卷号：701

起止页码：350

外文期刊名：JOURNAL OF ALLOYS AND COMPOUNDS

收录：;EI(收录号：20170403286210);WOS:【SCI-EXPANDED(收录号:WOS:000395839100045)】；

基金：The authors gratefully acknowledge the support of the National Natural Science Foundation of China (NSFC 21476084), the Fundamental Research Funds for the Central Universities, PetroChina Innovation Foundation, the Open Project of Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials (2014MCIMKF02).

语种：英文

外文关键词：Ag2MoO4; Ag3PO4; Visible light; Degradation; Photocatalysis

摘要：Novel Ag2MoO4/Ag3PO4 (AgMoP) composites were synthesized by a facile precipitation method. The composition, structures and optical properties of as-prepared catalysts were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), UV vis diffused reflectance spectra (UV vis DRS). The photocatalytic activities were evaluated by the degradation of rhodamine B (RhB), methylene blue (MB) and methyl orange (MO) under visible light irradiation lambda >= 420 nm). 5% AgMoP composite showed the best photocatalytic performance, and its degradation rate constants were 2.8, 2.4, 4.6 times higher than pure Ag3PO4 for the degradation of RhB, MB, MO, respectively. Particularly, its photocatalytic property can be maintained even after four degradation cycles. Additionally, based on UV vis DRS and active species trapping, the photocatalytic mechanism for the enhanced photocatalytic performance of Ag2MoO4/Ag3PO4 was proposed. (C) 2017 Elsevier B.V. All rights reserved.