Jump to main content
Jump to site search

Issue 6, 2018
Previous Article Next Article

Oxygen vacancy regulation on tungsten oxides with specific exposed facets for enhanced visible-light-driven photocatalytic oxidation

Author affiliations

Abstract

Introduced oxygen vacancy on WO3 with specific exposed facets was prepared through facile solvothermal treatment and different cooling methods. We demonstrated that the density of oxygen defects could be regulated by different cooling methods and speculated that oxygen vacancy with appropriate concentration range could promote photocatalytic activity through suppressing the recombination of photo-induced carriers. The specific exposed facets with higher oxidation efficiency were prepared by solvothermal reaction. WO3-A treated by air cooling exhibits the best photocatalytic oxygen evolution rate at 500 μmol g−1 h−1 using AgNO3 as sacrifice agent under visible light (λ > 400 nm) without any co-catalysts, which is about 2 times higher than WO3-N without oxygen defects. This strategy, using different cooling methods to regulate oxygen vacancy concentration on tungsten oxides, could contribute to the design of other high efficiency photocatalysts.

Graphical abstract: Oxygen vacancy regulation on tungsten oxides with specific exposed facets for enhanced visible-light-driven photocatalytic oxidation

Back to tab navigation

Supplementary files

Publication details

The article was received on 17 Nov 2017, accepted on 10 Jan 2018 and first published on 10 Jan 2018


Article type: Paper
DOI: 10.1039/C7NR08590G
Citation: Nanoscale, 2018,10, 2908-2915
  •   Request permissions

    Oxygen vacancy regulation on tungsten oxides with specific exposed facets for enhanced visible-light-driven photocatalytic oxidation

    J. Meng, Q. Lin, T. Chen, X. Wei, J. Li and Z. Zhang, Nanoscale, 2018, 10, 2908
    DOI: 10.1039/C7NR08590G

Search articles by author

Spotlight

Advertisements