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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 11
BKCSDE 32(11)
November 20, 2011

Title	Self-cleaning Properties of TiO₂-SiO₂-In₂O₃ Nanocomposite Thin Film
Author	Akbar Eshaghi*, Ameneh Eshaghi
Keywords	Sol-gel processes, TiO2, Self-cleaning
Abstract	TiO2 -SiO2 -In2O3 nanocomposite thin film was deposited on the glass substrates using a dip coating technique. The morphology, surface composition, surface hydroxyl groups, photocatalytic activity and hydrophilic properties of the thin film were investigated by AFM, XPS, methyl orange decoloring rate and water contact angle measurements. The hydroxyl content for TiO2, TiO2-SiO2 and TiO2-SiO2-In2O3 nanocomposite films was calculated to be 11.6, 17.1 and 20.7%, respectively. TiO2-SiO2-In2O3 film turned superhydrophilic after 180- min irradiation with respect to pure TiO2 and TiO2-SiO2 thin films. The photocatalytic decomposition of methyl orange for TiO2, TiO2-SiO2 and TiO2-SiO2-In2O3 thin films was measured as 38.19, 58.71 and 68.02%, respectively. The results indicated that SiO2 and In2O3 had a significant effect on the hydrophilic, photocatalytic and self-cleaning properties of TiO2 thin film.
Page	3991 - 3995
Full Text	PDF

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