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Photoelectrocatalytic properties of TiO2/ATO composite films

Authors
  • Zhou, Hualan1
  • Ge, Jie2
  • Zhang, Meihong2
  • Yuan, Shuai2
  • 1 University of Shanghai for Science and Technology, School of Medical Instrument and Food Engineering, Shanghai, 200093, People’s Republic of China , Shanghai (China)
  • 2 Shanghai University, Research Center of Nanoscience and Nanotechnology, 99 Shangda Road, Shanghai, 200444, People’s Republic of China , Shanghai (China)
Type
Published Article
Journal
Research on Chemical Intermediates
Publisher
Springer-Verlag
Publication Date
Jul 26, 2015
Volume
42
Issue
3
Pages
1929–1941
Identifiers
DOI: 10.1007/s11164-015-2126-y
Source
Springer Nature
Keywords
License
Yellow

Abstract

Mesoporous composite films of titania (TiO2) and antimony-doped tin oxide (ATO) were prepared on titanium plate substrates from pastes by the doctor-blade method. The photoelectrochemical properties of the samples with different ATO contents were investigated by the degradation of methylene blue under UV light irradiation. It was found that the photocatalytic activity of TiO2 was significantly improved with the help of the introduction of ATO nanocrystals and a forward bias. The synergetic effect of ATO and bias was analyzed by electrochemical impedance spectra (EIS). The EIS analysis results demonstrated that the separation of photogenerated electron–hole pairs can be efficiently enhanced by introducing ATO nanoparticles and applying an external bias.

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