酸碱腐蚀对多孔TiO<sub>2</sub>薄膜透光率的影响

王云霞<sup>1; 2</sup>; 阎逢元<sup>1</sup>

引用本文:	王云霞,阎逢元.酸碱腐蚀对多孔TiO₂薄膜透光率的影响[J].中国表面工程,2005,(3):34~36
	.Effect of Acid and Alkaline Corrosion on Transmittivity of Porous TiO2 Thin Films[J].China Surface Engineering,2005,(3):34~36

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酸碱腐蚀对多孔TiO₂薄膜透光率的影响
王云霞^1,2，阎逢元¹

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摘要:

配制了含不同分子量聚乙二醇的TiO2溶胶，采用浸渍提拉法在普通载玻片上制备了单、双层多孔TiO2薄膜。用CA—A型接触角测量仪、SEM和UV／vis等研究了薄膜亲水性的变化、表面形貌以及酸碱腐蚀前后的光学特性。结果表明，所制备的薄膜表面呈微孔结构，可较长时间保持亲水性，具有较好的透光性，层数对透光率基本没有影响。经pH=3和pH=13的溶液浸泡60h，薄膜的透光率未发生变化，薄膜具有良好的耐酸碱腐蚀性。

关键词: 多孔TiO2薄膜透光率耐腐蚀性

DOI：

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基金项目:国家自然科学基金重点项目(No.50323007,No.50432020)资助

Effect of Acid and Alkaline Corrosion on Transmittivity of Porous TiO2 Thin Films

WANG Yun-xia ^1,2，YAN Feng-yuan¹

Abstract:

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.

Key words: porous TiO2 thin films transmittivity corrosion resistance