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Preparation of superhydrophobic CdS cotton using visible light response and its application for the control of water pollution

查看全文 作　　者：GE [1]Bo;REN [2]GuiNa;ZHAO [1]PengFei;JIN [1]ChuanYu;LI [1]WenZhi;ZHANG [3]ZhaoZhu 高影响力作者 机构地区：[1]School of Materials Science and Engineering,Liaocheng University,Liaocheng 252000,China;[2]School of Environmental and Material Engineering,Yantai University,Yantai 264405,China;[3]State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China高影响力机构 出　　处：《Science China(Technological Sciences)》索引2019年第62卷第12期,共7页高影响力期刊 基　　金：supported by the Foundation of Shandong Training Project(Grant No.ZR2018PB014);Ph.D.Programs of Shandong Province(Grant No.ZR2014EL009);the Ph.D.early development program of Liaocheng University(Grant No.318051648) 摘　　要：Sewage discharge produced by homes and industries contains both oil and water-soluble components. In order to remove oil from water, materials with specific wettability can be used;however, these materials cannot remove dissolved contaminants from water. In this research, we prepared a superhydrophobic Cd S cotton for water purification. This material has the ability to adsorb different types of oil due to its non-wettability(WCA = 152°). Moreover, its response behavior towards visible light enables it to remove water-soluble pollutants as well. The highest oil absorption rate of superhydrophobic Cd S cotton is nearly 30 times, and it can absorb light below 564 nm and produce ·OH to degrade water soluble pollutants. Finally, based on Mott-Schottky curve,the position of Fermi energy level was determined(–0.55 e V). Also, the positions of valence and conduction bands were calculated based on the analysis of band gap which helps in proving photoelectric response characteristics. 关 键 词：SUPERHYDROPHOBIC COTTON CDS PHOTOCATALYTIC
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