Oxygen-deficient bismuth tungstate and bismuth oxide composite photoanode with improved photostability

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

15 Scopus Citations
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Author(s)

  • Hoi Ying Chung
  • Weijian Chen
  • Xiaoming Wen
  • Judy N. Hart
  • Hao Wu
  • Yuekun Lai
  • Rose Amal

Detail(s)

Original languageEnglish
Pages (from-to)990-996
Journal / PublicationScience Bulletin
Volume63
Issue number15
Online published27 Jun 2018
Publication statusPublished - 15 Aug 2018
Externally publishedYes

Abstract

A homogeneous layer of Bi2O3-Bi14WO24 composite (BWO/Bi2O3) thin film was fabricated using a combination of electrodeposition and thermal treatment. The evenly distributed Bi14WO24 component within the Bi2O3 layer was found to be important in stabilising the photoelectrochemical performances of Bi2O3 photoanode by promoting the photoelectron transport. The unmodified Bi2O3 suffered from severe photocorrosion as proven by X-ray diffraction (XRD) and inductively coupled plasma (ICP) analyses while the composite thin film was active without noticeable activity decay for at least 3 h of illumination. This strategy might be applicable to other photocatalysts with stability issues.

Research Area(s)

  • Bismuth oxide, Bismuth tungstate, Photocorrosion

Citation Format(s)

Oxygen-deficient bismuth tungstate and bismuth oxide composite photoanode with improved photostability. / Chung, Hoi Ying; Chen, Weijian; Wen, Xiaoming; Hart, Judy N.; Wu, Hao; Lai, Yuekun; Amal, Rose; Ng, Yun Hau.

In: Science Bulletin, Vol. 63, No. 15, 15.08.2018, p. 990-996.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review