Alkaline-induced superhydrophilic/underwater superoleophobic polyacrylonitrile membranes with ultralow oil-adhesion for high-efficient oil/water separation

被引：169

作者：

Zhang, Feng ^{[1
]}

Gao, Shoujian ^{[1
]}

Zhu, Yuzhang ^{[1
]}

Jin, Jian ^{[1
]}

机构：

[1] Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, I Lab, Suzhou 215123, Peoples R China

来源：

JOURNAL OF MEMBRANE SCIENCE | 2016年 / 513卷

基金：

中国国家自然科学基金;

关键词：

Superwetting material; Filtration membrane; Emulsion separation; Ultralow-oil-adhesion; WASTE-WATER TREATMENT; PVDF MEMBRANES; ULTRAFILTRATION; SURFACES; PURIFICATION; FABRICATION; EMULSIONS; PROGRESS; MESH; FLUX;

D O I：

10.1016/j.memsci.2016.04.020

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Traditional polymer membranes prepared by phase inversion process have the problems of low flux and serious fouling when they were used for oil/water separation. In this work, an alkaline-induced phase inversion process is developed for the superhydrophilic/underwater superoleophobic polyacrylonitrile (PAN) ultrafiltration membrane. The as-prepared PAN ultrafiltration membrane could effectively separate oil-in-H2O emulsions with a high flux up to 2270 L/m(2) h bar and an extremely high rejection while the oil residual in filtrate after one-time separation is lower than 10 ppm. Also, the PAN membrane showed ultralow oil adhesion and antifouling properties and can be easily recycled with flux recovery ratio of 85%. This new PAN membrane has a great potential for treating oily wastewater. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：67 / 73

页数：7

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