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http://dx.doi.org/10.5012/bkcs.2005.26.10.1515

Photoinduced Superhydrophilicity in TiO2 Thin Films Modified with WO3  

Hwang, Young-Kyu (Research Center for Nanocatalysts, Korea Research Institute of Chemical Technology)
Patil, Kashinath Rangu (Research Center for Nanocatalysts, Korea Research Institute of Chemical Technology)
Kim, Hye-Kyung (Research Center for Nanocatalysts, Korea Research Institute of Chemical Technology)
Dattatraya Sathaye, Shivaram (Research Center for Nanocatalysts, Korea Research Institute of Chemical Technology)
Hwang, Jin-Soo (Research Center for Nanocatalysts, Korea Research Institute of Chemical Technology)
Park, Sang-Eon (Department of Chemistry, Inha University)
Chang, Jong-San (Research Center for Nanocatalysts, Korea Research Institute of Chemical Technology)
Publication Information
Bulletin of the Korean Chemical Society / v.26, no.10, 2005 , pp. 1515-1519 More about this Journal
Abstract
Tungsten oxide-modified TiO2 thin films were formed on a glass substrate by sol-gel and dip coating processes using acetyl acetone as a chelating agent. The hydrophilic properties of the thin films were investigated with illumination of UV light. The dependence of water contact angle on material composition and morphology of the film is established with SEM image and AFM profile. The surface morphology was controlled with the change of precursor concentration. 0.01 M of tungsten oxide-modified Ti$O_2$ have shown the highest hydrophilicity after UV-irradiation. The effect of composition on photoinduced hydrophilicity of the W$O_3$-Ti$O_2$ films was also investigated. The films were characterized by XRD, SEM, AFM and XPS.
Keywords
Hydrophilicity; Water contact angle; $TiO_2$ thin films; $WO_3$;
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Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 6  (Related Records In Web of Science)
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