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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 26, Number 10
BKCSDE 26(10)
October 20, 2005

Title	Photoinduced Superhydrophilicity in TiO₂ Thin Films Modified with WO₃
Author	Young Kyu Hwang, Kashinath Rangu Patil, Hye-Kyung Kim, Shivaram Dattatraya Sathaye, Jin-Soo Hwang, Sang-Eon Park, Jong-San Chang
Keywords	Hydrophilicity, Water contact angle, TiO₂ thin films, WO₃
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 TiO₂ have shown the highest hydrophilicity after UV-irradiation. The effect of composition on photoinduced hydrophilicity of the WO₃-TiO₂ films was also investigated. The films were characterized by XRD, SEM, AFM and XPS.
Page	1515 - 1519
Full Text	PDF

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