Enhanced photoelectrocatalytic performance of polyoxometalate-titania nanocomposite photoanode

Yibing Xie, Li Min Zhou, Haitao Huang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

24 Citations (Scopus)

Abstract

Polyoxophosphotungstate-incorporated titania/titanium nanocomposite (POPTA-TiO2/Ti) has been developed as a photo-anode for photo-electro-catalytic application. Highly-ordered anatase TiO2nanotube array with a vertical orientation is synthesized by a controlled anodization plus a post-calcination. Hybrid incorporation is followed by embedding POPTA into TiO2tubule channels. The morphological characteristics, crystal behavior and chemical structure of POPTA-TiO2are examined by field emission scanning electron microscopy, X-ray diffraction (XRD), thermogravimetry analysis and Fourier transformed infra-red spectroscopy. Electrochemical properties and photocurrent responses have been investigated by linear sweep voltammetry. Photo-catalytic and photo-electro-catalytic applications for recalcitrant organic pollutant degradation have been investigated to examine photo-electrochemical efficiency and effectiveness of POPTA-TiO2/Ti nanocomposite photo-anode. Electro-generation hydrogen pyroxide (H2O2)-assisted TiO2photo-electro-catalysis has been also conducted by using dual functional electrodes of a nanotubular POPTA-TiO2/Ti photo-anode and a vitreous carbon cathode for enhanced photo-electrochemical performance.
Original languageEnglish
Pages (from-to)15-23
Number of pages9
JournalApplied Catalysis B: Environmental
Volume76
Issue number1-2
DOIs
Publication statusPublished - 30 Oct 2007

Keywords

  • Nanocomposite photo-anode
  • Photo-electro-catalytic
  • Polyoxophosphotungstate
  • Titania nanotube array

ASJC Scopus subject areas

  • Catalysis
  • Environmental Science(all)
  • Process Chemistry and Technology

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