Preparation and Property of Superhydrophobic and Photocatalytic Polydimethylsilane/Nano-TiO2 Self-Cleaning Coating

被引：0
|
作者：
Liu R. [1 ,2 ]
Ding X. [2 ]
Zhao J. [2 ]
Hu J. [2 ]
Mu J. [2 ]
Fu X. [2 ]
机构：
[1] College of Materials and Environmental Engineering, Fujian Polytechnic Normal University, Fuqing
[2] College of Ecological and Resources Engineering, Wuyi University, Wuyishan
来源：
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2022年 / 50卷 / 05期
关键词：
Composite coating; Photocatalysis; Self-cleaning; Superhydrophobicity;
D O I：
10.14062/j.issn.0454-5648.20210538
中图分类号：
学科分类号：
摘要：
Combining the photocatalytic activity with the superhydrophobicityof coating is an effective approach for the self-cleaning effect. In this paper, the porous aluminum surface was coated with trialkoxy-terminated polydimethylsiloxane/titanium dioxide (PDMS/TiO2) coating (APT) by a solution immersion method. According to the analysis by Fourier-transformed infrared spectroscopy and X-ray photoelectron spectroscopy, a bond (Ti-O-Si) between PDMS and TiO2 is formed. The results by scanning electron microscopy and energy dispersive spectroscopy show that the superhydrophobicity is due to the interconnected hierarchical sheet structure and the PDMS with a low surface energy. The surface of APT coating has a stable superhydrophobicity with a water contact angle (WCA) of 161.6° and a sliding angle of less than 10°. The stability of superhydrophobicitywith WCAs greater than 150°remains after 24h ultraviolet irradiation. The ATP coating has an effective photocatalytic activity and an ability to degrade dyes and remove some organic substances on the surface. © 2022, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.
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页码：1275 / 1282
页数：7
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