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

论文摘要

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.

论文目录

• 1 Introduction
• 2 Experimental section
•   2.1 Materials
•   2.2 Preparation of superhydrophobic CdS cotton
•   2.3. Characterization
• 3 Results and discussion
•   3.1 Oil/water separation performance of super-hydrophobic CdS cotton
•   3.2 Evaluation of the degradation performance of superhydrophobic CdS cotton for water-soluble pollutants
• 4 Conclusion

文章来源

类型: 期刊论文

作者: GE Bo,REN GuiNa,ZHAO PengFei,JIN ChuanYu,LI WenZhi,ZHANG ZhaoZhu

来源: Science China(Technological Sciences) 2019年12期

年度: 2019

分类: 工程科技Ⅱ辑,工程科技Ⅰ辑

专业: 环境科学与资源利用

单位: School of Materials Science and Engineering, Liaocheng University,School of Environmental and Material Engineering, Yantai University,State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences

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)

分类号: X703

页码: 2236-2242

总页数: 7

文件大小: 1016K

下载量: 23