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Self-Cleaning and Photocatalytic Performance of TiO2 Coating Films Prepared by Peroxo Titanic Acid

  • Yadav, Hemraj M. (Department of Materials Science and Engineering, University of Seoul) ;
  • Kim, Jung-Sik (Department of Materials Science and Engineering, University of Seoul)
  • Received : 2017.09.27
  • Accepted : 2017.10.02
  • Published : 2017.11.27

Abstract

Self-cleaning and photocatalytic $TiO_2$ thin films were prepared by a facile sol-gel method followed by spin coating using peroxo titanic acid as a precursor. The as-prepared thin films were heated at low temperature($110^{\circ}C$) and high temperature ($400^{\circ}C$). Thin films were characterized by X-ray diffraction(XRD), Field-emission scanning electron microscopy(FESEM), UV-Visible spectroscopy and water contact angle measurement. XRD analysis confirms the low crystallinity of thin films prepared at low temperature, while crystalline anatase phase was found the for high temperature thin film. The photocatalytic activity of thin films was studied by the photocatalytic degradation of methylene blue dye solution. Self-cleaning and photocatalytic performance of both low and high temperature thin films were compared.

Acknowledgement

Supported by : Ministry of Land, Infrastructure, and Transport of the Korean government

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