Visible-light photocatalytic activity of graphene oxide-wrapped Bi2WO6 hierarchical microspheres

  • Zhai J
  • Yu H
  • Li H
 et al. 
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Abstract

A facile approach of fabricating homogeneous graphene oxide (GO)-wrapped Bi2WO6 microspheres (GO/Bi2WO6 ) is developed. The transmission electron microscopy (TEM) results show that a heterojunction interface between GO and Bi2WO6 The UV-vis diffuse reflection spectra (DRS) reveal that the as-prepared GO/Bi2WO6 composites own more intensive absorption in the visible light range compared with pure Bi2WO6 . These characteristic structural and optical properties endow GO/Bi2WO6 composites with enhanced photocatalytic activity. The enhanced photocatalytic activity of the GO/Bi2WO6 is attributed predominantly to the synergetic effect between GO and Bi2WO6 , causing rapid generation and separation of photo-generated charge carriers. (C) 2015 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • graphene oxide-wrapped
  • photocatalytic activity

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Authors

  • Jiali Zhai

  • Hongwen Yu

  • Haiyan Li

  • Lei Sun

  • Kexin Zhang

  • Hongjun Yang

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