Volume 10 Issue 4
Oct.  2017
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Article Navigation >  Water Science and Engineering  > 2017  >  10(4): 334-339
Jing-jing Xu, Jing-wen Yang, Pu Zhang, Quan Yuan, Yan-hong Zhu, Yu Wang, Miao-miao Wu, Zheng-mei Wang, Min-dong Chen. 2017: Preparation of 2D square-like Bi2S3-BiOCl heterostructures with enhanced visible light-driven photocatalytic performance for dye pollutant degradation. Water Science and Engineering, 10(4): 334-339. doi: 10.1016/j.wse.2017.12.010
Citation: Jing-jing Xu, Jing-wen Yang, Pu Zhang, Quan Yuan, Yan-hong Zhu, Yu Wang, Miao-miao Wu, Zheng-mei Wang, Min-dong Chen. 2017: Preparation of 2D square-like Bi2S3-BiOCl heterostructures with enhanced visible light-driven photocatalytic performance for dye pollutant degradation. Water Science and Engineering, 10(4): 334-339. doi: 10.1016/j.wse.2017.12.010
shu

Preparation of 2D square-like Bi2S3-BiOCl heterostructures with enhanced visible light-driven photocatalytic performance for dye pollutant degradation

doi: 10.1016/j.wse.2017.12.010

  • a Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China

  • b Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials, Nanjing University of Information Science and Technology, Nanjing 210044, China

  • c Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science and Technology, Nanjing 210044, China

Funds:  This work was supported by the Natural Science Foundation of Jiangsu Province (Grant No. BK2012464), the Research Fellowship from the Jiangsu Overseas Research and Training Program, and a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).
  • Received Date: 2016-12-01
  • Rev Recd Date: 2017-03-09
    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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