常州大学学报（自然科学版）2012，Vol.24Issue(2)：11-16,6.
TiO2薄膜的亲水性及光催化自清洁效果
Hydrophilicity and Photo-Catalytic Self-Cleaning Function of TiO2 Films
方敏 1董如林 1陈智栋 1金长春 1顾宏伟1
作者信息
- 1. 常州大学石油化工学院,江苏常州213164
- 折叠
摘要
Abstract
Nanosize pore, nanosize combining macrosize pore modified TiO2 films and TiO2/SiO2 composite film were prepared on glass substrate by sol-gel method. The hydrophilicities of the films and its recovery capabilities under irradiation of UV light were investigated for the as-prepared films and the films contaminated outdoors, respectively. All the as -prepared TiO2 films show water contact angle of 0° The contact angle for TiO2/SiO2 composite film is high as compared with the pure TiO2 film when SiO2 concentration is low (10 %) and decreases when SiO2 doping amount is further increased. The recovery capability of superhydrophilicity under irradiation of UV light is not influenced by the aging time of the precursor sol, mole fraction of SiO2 and the surface morphology of the film. It depends on the photocata-lytic activity of the TiO2 film. For the TiO2 films prepared by repeating coating process over 4 times and the film fabricated with SiO2 interlayer, the superhydrophilicity can be restored by UV light irradiation because these films can suppress the diffusion of Na+ from the glass substrate to the surface of the film and perform higher photocatalytic activity to the dust contamination.关键词
TiO2薄膜/亲水性/灰尘污染/自清洁Key words
TiO2 film/ hydrophilicity/ dust contamination/ self-cleaning分类
数理科学引用本文复制引用
方敏,董如林,陈智栋,金长春,顾宏伟..TiO2薄膜的亲水性及光催化自清洁效果[J].常州大学学报（自然科学版）,2012,24(2):11-16,6.
