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超亲水TiO2/SiO2复合薄膜的制备与表征

余家国; 赵修建; 林立; 韩建军; 赵青南   

  1. 武汉理工大学材料复合新技术国家重点实验室, 武汉 430070
  • 收稿日期:2000-07-06 修回日期:2000-07-28 出版日期:2001-05-20 网络出版日期:2001-05-20

Preparation and Characterization of Super-Hydrophilic TiO2/SiO2 Composite Thin Films

YU Jia-Guo; ZHAO Xiu-Jian; LIN Li; HAN Jian-Jun; ZHAO Qing-Nan   

  1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing; Wuhan University of Technology; Wuhan 430070; China
  • Received:2000-07-06 Revised:2000-07-28 Published:2001-05-20 Online:2001-05-20

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摘要： 通过 ｓｏｌ－ｇｅｌ工艺在普通钠钙玻璃表面制备了均匀透明的 ＴｉＯ２／ＳｉＯ２复合薄膜．实验结果表明：在 ＴｉＯ２薄膜中添加 ＳｉＯ２，可以抑制薄膜中 ＴｉＯ２晶粒的长大，同时薄膜表面的羟基含量增加，水在复合薄膜表面的润湿角下降，亲水能力增强．当 ＳｉＯ２含量为 １０～２０ ｍｏｌ％时获得了润湿角为０°的超亲水性薄膜．

关键词: TiO2/SiO2复合薄膜, 超亲水性, 制备, 表征

Abstract: The uniform transparent TiO2/SiO2 composite thin films were prepared via sol-gel processing on the soda lime glass substrates. The addition of SiO2 to TiO2 thin films can suppress the grain growth of TiO2 crystal in the TiO2 thin films, increase the hydroxyl content Of TiO2 film, low the contact angle for water of TiO2 films and enhance the hydrophilic property of TiO2 films. The super-hydrophilic TiO2/SiO2 composite films with the contact angle of 0° were obtained by the addition of 10mol%~20mol% SiO2.

Key words: TiO2/SiO2 composite thin films, super-hydrophilic property, preparation, characterization

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