Ag enhanced CuS nanoflower catalyst coupling dielectric barrier discharge plasma for disinfection performance and mechanism  

作　　者：Run WANG Man WANG Zhouling YANG Mingyu WANG Leyi LIU Lu ZHOU Yi ZHANG Yingqi SONG 王润;王蔓;杨周铃;王明宇;刘乐怡;周鹭;张轶;宋英琦(School of Environmental Science and Engineering,Zhejiang Gongshang University,Hangzhou 310018,People’s Republic of China)

机构地区：[1]School of Environmental Science and Engineering,Zhejiang Gongshang University,Hangzhou 310018,People’s Republic of China

出　　处：《Plasma Science and Technology》2024年第12期99-109,共11页等离子体科学和技术（英文版）

基　　金：funded by the National College Student Innovation and Entrepreneurship Training Program(No.GJ202323011)。

摘　　要：In this study,the hydrothermal method was employed to grow submicron CuS on carbon cloth(CC),and the photoreduction method was used to grow Ag nanoparticles on the CuS submicron flowers,thus forming the Ag/CuS/CC catalytic electrode.The application of Ag/CuS/CC electrode-coupled dielectric barrier discharge(DBD)plasma in the disinfection of pathogenic bacteria in water was studied.The Ag/CuS/CC electrode exhibits strong antibacterial activity,and under an external voltage of 30 V,the degradation efficiency of Bacillus subtilis reaches 99.99%within 15 min without regeneration.After five cycles,the inactivation rate of Bacillus subtilis reached 99.99%within 25 min.The practical applicability of the Ag/CuS/CC-coupled DBD system for treating actual wastewater was evaluated,and the changes in biological toxicity were investigated.The results indicate that the prepared Ag/CuS/CC coupled DBD has great potential for safe disinfection of pathogenic bacteria in water through integrated processes.

关 键 词：PLASMA CuS submicron flower active species pathogenic bacteria sterilization mechanism 

分 类 号：X703[环境科学与工程—环境工程] O53[理学—等离子体物理] O461[理学—物理]