Preparation, characterization & photocatalytic activity of in situ Fe-doped TiO2 thin films

Jiaguo YU, Huogen YU, C.H. AO, S.C. LEE, Jimmy C. YU, Wing Kei HO

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Abstract

Fe-doped TiO2 thin 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 TiO2 thin 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 TiO2 crystallites. Copyright © 2005 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)273-280
JournalThin Solid Films
Volume496
Issue number2
DOIs
Publication statusPublished - 2005

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Thin films
Ions
Stainless Steel
Crystallites
Calcination
Sintering
Liquids
Substrates
Temperature
titanium dioxide

Citation

Yu, J. G.; Yu, H. G.; Ao, C. H.; Lee, S. C.; Yu, J. C.; Ho, W. K (2005). Preparation, Characterization &Photocatalytic Activity of in situ Fe-doped TiO2 thin films. Thin Solid Films, 496, 273-280. doi: 10.1016/j.tsf.2005.08.352

Keywords

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