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Vol. 25 No. 11 (2013): Vol 25 Issue 11

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Surface Chemistry of Super-Hydrophilic SiO2-Doped TiO2 Photo-Catalysts for Self-Cleaning Glass

https://doi.org/10.14233/ajchem.2013.14257
Shui-Yang Lien
Department of Materials Science and Engineering, Ming Dao University, Chunghua 52345, Taiwan
Asheesh Nautiyal
Department of Mechanical Engineering, Yuan Ze University, Zhongli, Taiwan
Jia-he Jhu
Department of Materials Science and Engineering, Ming Dao University, Chunghua 52345, Taiwan
Jen-Ken Hsu
Department of Materials Science and Engineering, Ming Dao University, Chunghua 52345, Taiwan
Shuo Jen Lee
Department of Mechanical Engineering, Yuan Ze University, Zhongli, Taiwan

Corresponding Author(s) : Shui-Yang Lien

syl@mdu.edu.tw

Asian Journal of Chemistry, Vol. 25 No. 11 (2013): Vol 25 Issue 11

Abstract

The self-cleaning of glass surface can be enhanced by coating the photoinduced super-hydrophilic nanoporous thin film based on TiO2 photocatalysts via sol-gel process. In this article, a new method has been introduced to enhance the photocatalytic activity of TiO2 thin film, directly coated on the glass, developed by doping SiO2. The effects of post-annealing and the SiO2 content in TiO2 film on the photocatalytic activity were investigated. The microstructure and hydrophilic properties of the film were studied by using differential X-ray diffraction, field-emission scanning electron microscope. After illuminated by ultraviolet light, the SiO2 doped TiO2 film is super-hydrophilic with water contact angle less than 1º, this favours greatly the self-cleaning purpose of the glass surface.

Keywords

Sol-gel Spin-coating SiO2 doped TiO2 Self-cleaning glass
Lien, S.-Y., Nautiyal, A., Jhu, J.- he, Hsu, J.-K., & Jen Lee, S. (2013). Surface Chemistry of Super-Hydrophilic SiO2-Doped TiO2 Photo-Catalysts for Self-Cleaning Glass. Asian Journal of Chemistry, 25(11), 6071–6074. https://doi.org/10.14233/ajchem.2013.14257
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