• DocumentCode
    1482243
  • Title

    Photoinduced hydrophilicity of TiO2 film as the effect of H2O2 addition

  • Author

    Tseng, Y.-H. ; Kuo, Chih-Song ; Huang, Cong-Hui ; Hirakawa, Tsubasa ; Negishi, Nobuaki ; Bai, H.-L.

  • Author_Institution
    Dept. of Chem. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
  • Volume
    5
  • Issue
    2
  • fYear
    2010
  • fDate
    4/1/2010 12:00:00 AM
  • Firstpage
    81
  • Lastpage
    84
  • Abstract
    TiO2 thin film photocatalysts coated onto glass plates were prepared by thermal decomposition of tetraisopropyl orthotitanate with a dip-coating process. In this Letter, the mechanism for photoinduced hydrophilicity of TiO2 film is clarified by adding the extra H2O2 on TiO2 surface. Results show that the photoinduced hydrophilicity of TiO2 film is inhibited with the presence of H2O2. The amount of Ti-OH bonds on the surface oppositely increased by the addition of H2O2. It indicates the photoinduced hydrophilicity of TiO2 results from surface oxygen vacancy, not Ti-OH bonds.
  • Keywords
    association; catalysts; dip coating; hydrophilicity; photochemistry; pyrolysis; thin films; titanium compounds; H2O2 addition; TiO2; dip-coating; glass plates; photoinduced hydrophilicity; surface oxygen vacancy; tetraisopropyl orthotitanate; thermal decomposition; thin film photocatalysts;
  • fLanguage
    English
  • Journal_Title
    Micro & Nano Letters, IET
  • Publisher
    iet
  • ISSN
    1750-0443
  • Type

    jour

  • DOI
    10.1049/mnl.2010.0003
  • Filename
    5457354
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1482243