Reversible superwettability switching of a conductive polymer membrane for oil-water separation and self-cleaning
文献类型：期刊论文
| 作者 | Tan, Xiao; Hu, Chengzhi; Li, Xi ; Liu, Huijuan; Qu, Jiuhui
|
| 刊名 | JOURNAL OF MEMBRANE SCIENCE
 |
| 出版日期 | 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. |
| 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. |
入库方式： OAI收割
来源：生态环境研究中心
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