Transparent superhydrophobic thin films with self-cleaning properties
Transparent superhydrophobic thin films with self-cleaning properties
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DOI：
10.1021/la000155k
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发表时间：
2000-08-22
期刊：
影响因子：
3.9
通讯作者：
Fujishima, A
中科院分区：
文献类型：
--
作者：
Nakajima, A;Hashimoto, K;Fujishima, A
利用升华材料和随后的（氟烷基）硅烷涂层，制备了具有TiO 2光催化剂的透明超疏水薄膜。随着TiO2浓度的增加，薄膜的透明度降低，这是由于起始材料的尺寸差异。在1800小时的户外暴露后，仅含2wt% TiO 2的膜比不含TiO 2的膜保持更高的接触角，由于TiO 2的分散，避免了污渍的积累。本研究中制备的薄膜是第一个同时满足透明性、超疏水性和长寿命要求的薄膜。
Transparent superhydrophobic thin films with TiO2 photocatalyst were prepared by utilizing a sublimation material and subsequent coating of a (fluoroalkyl)silane. The transparency of the films decreased with increasing TiO2 concentration, which was attributed to the size difference of the starting materials. The film with only 2 wt % TiO2 maintained higher contact angle than the film without TiO2 after 1800-h outdoor exposure, the accumulation of stain being avoided due to TiO2 photocatalysis. The films prepared in this study are the first ones that satisfy the requirements of transparency, superhydrophobicity, and long lifetime simultaneously.