Mechanisms on the Sterilization Performance of Fluorocarbon Resin Composite Coatings Enhanced by g-C₃N₄/TiO₂

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• 作者：Yu Tian ; Feng Zhou ; Su Zhan ; Yifan Yang…
• 关键词：TiO2 ; g ; C3N4 ; Hydroxyl radicals ; Sterilization ; Fluorocarbon resin coatings
• 刊名：Journal of Inorganic and Organometallic Polymers and Materials
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：27
• 期：1
• 页码：353-362
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Inorganic Chemistry; Organic Chemistry; Polymer Sciences;
• 出版者：Springer US
• ISSN：1574-1451
• 卷排序：27

文摘

Photocatalysts have been widely applied in marine biofouling because of the production of strong oxidizing hydroxyl radicals (·OH). Numerous studies have shown that marine biological attachment begins from the microbial attachment, and ·OH inhibit microbial activity. In this study, TiO₂ modified by g-C₃N₄ and used in fluorocarbon resin (PEVE) coatings to improve the sterilization performance. The as-prepared photocatalysts were investigated by X-ray diffraction, Fourier transform infrared spectroscopy, UV–visible diffuse reflectance spectroscopy, scanning electron microcopy, high-resolution transmission electron microscopy, and electrochemical experiments. In the sterilization experiment, the sterilization performance of the PEVE composite coatings was enhanced by adding TiO₂ and g-C₃N₄/TiO₂ under UV and visible-light irradiation. When the g-C₃N₄ content in TiO₂ was 5%, the PEVE coatings achieved the best sterilization ability. This work holds great value through the application of photocatalyst technology in coatings to address marine biofouling problems.