Frontiers of Materials Science

, Volume 11, Issue 2, pp 120–129 | Cite as

Crystal-chemistry insight into the photocatalytic activity of BiOCl x Br1−x nanoplate solid solutions

  • Huan-Yan Xu
  • Xu Han
  • Qu Tan
  • Ke-Jia Wu
  • Shu-Yan Qi
Research Article


In this study, a facile alcoholysis method was developed to synthesize BiOCl x Br1−x nanoplates at room temperature and atmospheric pressure. In this route, strong acid or alkaline environment was absolutely avoided to realize the high exposure of {001} crystal facets. The regular changes in XRD peaks and cell parameters as a function of the Br content strongly declared that the obtained BiOCl x Br1−x products belonged to a group of solid solutions. The 2D nanosheets with in-plane wrinkles were clearly observed in TEM images. Interestingly, as the Br content increased, band gaps of BiOCl x Br1−x solid solutions gradually decreased. The photocatalytic degradation of RhB under simulated sunlight irradiation indicated that BiOCl0.5Br0.5 had the best photocatalytic activity. From the viewpoint of crystal chemistry, the photocatalytic activity of BiOCl x Br1−x solid solutions was closely related with the exposure amount of {001} facets, interlayer spacing of (001) plane and energy-level position of valence band.


BiOClxBr1−x solid solutions {001} facets exposure internal electric field interlayer spacing energy-level position 


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We express our great appreciation for the financial support of the Program for New Century Excellent Talents in Heilongjiang Provincial Universities (1253-NCET-010).


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Copyright information

© Higher Education Press and Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Huan-Yan Xu
    • 1
  • Xu Han
    • 1
  • Qu Tan
    • 1
  • Ke-Jia Wu
    • 1
  • Shu-Yan Qi
    • 1
  1. 1.School of Materials Science and EngineeringHarbin University of Science and TechnologyHarbinChina

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