Jump to main content
Jump to site search

Issue 12, 2011
Previous Article Next Article

Self-assembled 3D hierarchical clew-like Bi2WO6 microspheres: Synthesis, photo-induced charges transfer properties, and photocatalytic activities

Author affiliations

Abstract

Three-dimensional (3D) hierarchical clew-like microspheres with small size of bismuth tungstate (Bi2WO6) were successfully synthesized by a simple hydrothermal route at a proper volume ratio (1 : 1) of H2O/EG mixed solution. It has been found that ethylene glycol (EG) plays important roles in the formation of the clew-like structure. Bi2WO6 with different morphologies could be obtained by simply adjusting the volume ratio of the H2O/EG in the mixed solution. The kinetic features of photo-induced charges transfer properties of samples have been discussed by surface photovoltage spectrum (SPS) and transient photovoltage (TPV) techniques in detail. The Bi2WO6 with hierarchical clew-like structure possessed the highest efficiency of electron-hole separation and the lowest recombination rate of photo-induced charges, resulting in the highest photocatalytic activity for the degradation of Orange-II under the visible light (λ > 420 nm) illumination. The information provided here is thought to be beneficial for engineering high efficient photocatalysts.

Graphical abstract: Self-assembled 3D hierarchical clew-like Bi2WO6 microspheres: Synthesis, photo-induced charges transfer properties, and photocatalytic activities

Back to tab navigation

Supplementary files

Publication details

The article was received on 06 Dec 2010, accepted on 21 Mar 2011 and first published on 14 Apr 2011


Article type: Paper
DOI: 10.1039/C0CE00918K
Citation: CrystEngComm, 2011,13, 4053-4059
  •   Request permissions

    Self-assembled 3D hierarchical clew-like Bi2WO6 microspheres: Synthesis, photo-induced charges transfer properties, and photocatalytic activities

    D. He, L. Wang, H. Li, T. Yan, D. Wang and T. Xie, CrystEngComm, 2011, 13, 4053
    DOI: 10.1039/C0CE00918K

Search articles by author

Spotlight

Advertisements