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

作     者：GE Bo REN GuiNa ZHAO PengFei JIN ChuanYu LI WenZhi ZHANG ZhaoZhu 

作者机构：School of Materials Science and EngineeringLiaocheng UniversityLiaocheng 252000China School of Environmental and Material EngineeringYantai UniversityYantai 264405China State Key Laboratory of Solid LubricationLanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2019年第62卷第12期

页      面：2236-2242页

核心收录：

学科分类：0202[经济学-应用经济学] 02[经济学] 020205[经济学-产业经济学] 

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) 

主　　题：superhydrophobic cotton CdS photocatalytic 

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.