Preparation, characterization and photocatalytic activity of in situ Fe-doped TiO2thin films

Jiaguo Yu, Huogen Yu, C. H. Ao, Shuncheng Lee, Jimmy C. Yu, Wingkei Ho

Research output: Journal article publicationJournal articleAcademic researchpeer-review

155 Citations (Scopus)

Abstract

Fe-doped TiO2thin films were prepared in situ on stainless steel substrates by liquid phase deposition, followed by calcination at various temperatures. It was found that some Fe3+ions were in situ doped into the TiO2thin films. At 400 °C, the film became photoactive due to the formation of anatase phase. At 500 °C, the film showed the highest photocatalytic activity due to an optimal Fe3+ion concentration in the film. At 900 °C, the photocatalytic activity of the films decreased significantly due to the further increase of Fe3+ion concentration, the formation of rutile phase and the sintering and growth of TiO2crystallites.
Original languageEnglish
Pages (from-to)273-280
Number of pages8
JournalThin Solid Films
Volume496
Issue number2
DOIs
Publication statusPublished - 21 Feb 2006

Keywords

  • Photocatalysis
  • Steel
  • Titanium oxide
  • X-ray diffraction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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