期刊
WATER SCIENCE AND ENGINEERING
卷 10, 期 4, 页码 334-339出版社
EDITORIAL BOARD WATER SCIENCE & ENGINEERING
DOI: 10.1016/j.wse.2017.12.010
关键词
Photocatalysis; Bi2S3; BiOCl; Visible light; Heterostructure
资金
- Natural Science Foundation of Jiangsu Province [BK2012464]
- Jiangsu Overseas Research and Training Program
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
A series of Bi2S3-BiOCl composites with two-dimensional (2D) square-like structures were prepared via a two-step anion exchange route. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and diffuse reflectance spectra (DRS) were used to investigate the properties of the as-prepared Bi2S3-BiOCl heterostructures. The coupling of BiOCl and Bi2S3 induced enhanced photoabsorption efficiency and bandgap narrowing. A reactive brilliant red X-3B dye was used as a contaminant to test the photocatalytic activity of the obtained Bi2S3-BiOCl samples under visible light irradiation. The sample Bi2S3-BiOCl with a mass ratio of 8: 4 exhibited the highest photodegradation efficiency, which was six times higher than that of pure BiOCl. In addition, a mechanism for the enhancement of photocatalytic activity is proposed. (C) 2017 Hohai University. Production and hosting by Elsevier B.V.
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