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《China Surface Engineering》 2005-03
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Effect of Acid and Alkaline Corrosion on Transmittivity of Porous TiO_2 Thin Films

WANG Yun-xia 1,2,YAN Feng-yuan1 (1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000 China ; 2. Graduate School of the Chinese Academy of Sciences, Beijing 100864)  
The porous TiO2 thin films deposited on the surface of common glass surface were prepared from alkoxide solutions containing polyethylene glycol (PEG) by dip-coating technique.The hydrophilicity, microstructure, optic properties of the film were investigated by means of CA-A type contact angle tester, SEM and UV/vis. The results showed that the films are porous with better hydrophilicity and higher transmittivity. The number of layers of film almost has no effect on its transmittivity. The films have good corrosion resistance properties to acid and alkaline. Keeping the film in pH=3 and pH=13 solution respectively till 60 hours, the films have retained original optic properties.
【Fund】: 国家自然科学基金重点项目(No.50323007 No.50432020)资助
【CateGory Index】: TB383
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