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Surface photodynamic ion sterilization of ITO-Cu_(2)O/ZnO preventing touch infection

Journal of Materials Science & Technology 2022年第27期122卷 10-19页

作者： Zexin Liu Xiangmei Liu Zhenduo Cui Yufeng Zheng Zhaoyang Li Yanqin Liang Xubo Yuan Shengli Zhu Shuilin Wu School of Materials Science&Engineering the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of ChinaTianjin UniversityTianjin 300072China School of Life Science and Health Engineering Hebei University of TechnologyTianjin 300401China School of Materials Science&Engineering Peking UniversityBeijing 100871China

Pathogenic microbial infections are threatening the people’s health and even *** most common channel of infections can be caused by skin contact,especially hand touching facilities such as touching *** this work,Cu_(2)O covered with ZnO nanofilm was prepared on the surface of indium tin oxide conductive glass by electrodeposition and the followed atomic layer deposition *** composite coating had a light transmittance of 71.5%,which met the light transmission needs of touch screen *** spin resonance spectra showed that composite materials can generate more reactive oxygen species(ROS)than a single component under solar light *** was because a p-n junction with a built-in electric field was formed at the interface after Cu_(2)O contacting with *** the process of photocatalysis,photogenerated electrons and holes migrated at the interface driven by the built-in electric field,which promoted the separation of *** antibacterial rate against Staphylococcus aureus reached 92.5%after 3 min of light irradiation with simulated sunlight due to the synergy of ROS and Cu ions,Zn ***,this work may provide a potential method for antibacterial application of preventing hand touch infections.

关键词： Antibacterial Cu_(2)O ZnO Contact infection photodynamic ion sterilization

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