Reversible superwettability switching of a conductive polymer membrane for oil-water separation and self-cleaning

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Reversible superwettability switching of a conductive polymer membrane for oil-water separation and self-cleaning
	Tan, Xiao; Hu, Chengzhi; Li, Xi; Liu, Huijuan; Qu, Jiuhui
刊名	JOURNAL OF MEMBRANE SCIENCE
	2020-06-15
卷号	605 页码:1-11
关键词	Conductive polymer Oil-water separation Smart surface Reversible superwetting
ISSN号	0376-7388
英文摘要	Oil wastewater discharge, from both domestic and industrial sources, has caused serious environmental problems. Separation of stabilized oil-water emulsions and anti-fouling of membranes remain substantial global challenges. In this work, we fabricated a reversible superwetting sodium bis(2-ethylhexyl) sulfosuccinate-doped polypyrrole (PPy-AOT) membrane for separation of oil-water emulsions and alleviation of membrane fouling by self-cleaning. The PPy-AOT membrane exhibited super-hydrophobicity for water-removal and super-hydrophilicity for oil-removal in oxidation and reduction states, respectively. Results showed that the separation efficiency of the PPy-AOT membrane under oxidation and reduction states exceeded 80%. Moreover, the reduced PPy-AOT membrane with a super-hydrophilic surface showed underwater anti-fouling properties for viscous oils. Simultaneously, the membrane displayed outstanding acid resistance and salt tolerance. Based on density functional theory calculations, the reversible wettability switching of the PPy-AOT membrane was due to the reorientation of AOT anions during the redox process. Thus, the advantageous membrane properties, including reversible superwetting, high separation efficiency, and corrosion protection, show great potential for separation of oil wastewater.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/44989]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Tan, Xiao,Hu, Chengzhi,Li, Xi,et al. Reversible superwettability switching of a conductive polymer membrane for oil-water separation and self-cleaning[J]. JOURNAL OF MEMBRANE SCIENCE,2020,605:1-11.
APA	Tan, Xiao,Hu, Chengzhi,Li, Xi,Liu, Huijuan,&Qu, Jiuhui.(2020).Reversible superwettability switching of a conductive polymer membrane for oil-water separation and self-cleaning.JOURNAL OF MEMBRANE SCIENCE,605,1-11.
MLA	Tan, Xiao,et al."Reversible superwettability switching of a conductive polymer membrane for oil-water separation and self-cleaning".JOURNAL OF MEMBRANE SCIENCE 605(2020):1-11.