期刊
MATERIALS RESEARCH BULLETIN
卷 80, 期 -, 页码 215-222出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2016.03.025
关键词
Composites; Semiconductors; Chemical synthesis; Transmission electron microscopy; Catalytic properties
资金
- Natural Science Foundation [21237003, 50806041]
- Shanghai Science and Technology Development [12dz1201702]
Ag3PO4/BiVO4 composites were fabricated by in-situ precipitation method. Results showed that Ag3PO4/BiVO4 composites exhibited higher photocatalytic activity than that of pure BiVO4 and Ag3PO4 sample under visible light irradiation. The effect of Ag3PO4:BiVO4 ratio on the photocatalytic activity was systemically studied and the optimum molar ratio of Ag3PO4:BiVO4 was 1:5. The Ag3PO4/BiVO4-5 exhibited excellent photocatalytic activity for the degradation of Rhodamine B (ca. 92% in 30 min) and 2, 4-dichlorophenol (ca. 84% in 180 min) under visible light irradiation. The enhanced photocatalytic activity could be mainly ascribed to the suitable Ag3PO4/BiVO4 heterojunction interface and the smaller particles of Ag3PO4 compared to pure Ag3PO4 particles which could promote the separation of photoinduced electron-hole pairs. The Ag3PO4/BiVO4 composite can significantly reduce the silver consumption compared to the pure Ag3PO4. It is worth noting that Ag3PO4/BiVO4 composite can act as a high performance and low cost visible-light-driven photocatalyst for environmental remediation. (C) 2016 Elsevier Ltd. All rights reserved.
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