| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6784597 | Water Science and Engineering | 2017 | 6 Pages |
Abstract
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.
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Authors
Jing-jing Xu, Jing-wen Yang, Pu Zhang, Quan Yuan, Yan-hong Zhu, Yu Wang, Miao-miao Wu, Zheng-mei Wang, Min-dong Chen,