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Preparation of TiO 2 Thin Films Using Water‐soluble Titanium Complexes and Their Photoinduced Properties
Author(s) -
Katsumata Kenichi,
Ohno Yukiaki,
Tomita Koji,
Sakai Munetoshi,
Nakajima Akira,
Kakihana Masato,
Fujishima Akira,
Matsushita Nobuhiro,
Okada Kiyoshi
Publication year - 2011
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.2011.00944.x
Subject(s) - anatase , thin film , titanium , titanium dioxide , materials science , photocatalysis , grain size , chemical engineering , microstructure , nanotechnology , catalysis , chemistry , composite material , organic chemistry , metallurgy , engineering
Titanium dioxide thin films were prepared by using four water‐soluble titanium complexes of titanium–lactate, tartalate, malate and salicylate complex solutions. The crystalline phases detected in the films were anatase. The surface microstructures of the four film samples were different in their grain sizes. Photocatalytic decomposition activity of the four films was almost the same, but their photoinduced hydrophilicities were different. The film prepared using titanium–salicylate complex exhibited lower hydrophilic conversion rate than the other films. Grain size and stress yielded to the film are considered to be important factors on the photoinduced hydrophilicity.