Nanofibrous metal-organic framework composite membrane for selective efficient oil/water emulsion separation

被引：144

作者：

Cai, Yahui ^{[1
]}

Chen, Dongyun ^{[1
]}

Li, Najun ^{[1
]}

Xu, Qingfeng ^{[1
]}

Li, Hua ^{[1
]}

He, Jinghui ^{[1
]}

Lu, Jianmei ^{[1
]}

机构：

[1] Soochow Univ, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China

来源：

JOURNAL OF MEMBRANE SCIENCE | 2017年 / 543卷

基金：

中国国家自然科学基金;

关键词：

PAN-fiber membrane; Zeolite imidazole frameworks (ZIF-8); Oil-water emulsions separation; Superhydrophobicity; Superoleophobicity; ULTRAFAST SEPARATION; PVDF MEMBRANE; WATER; OIL; SUPEROLEOPHOBICITY; PURIFICATION; FIBER; MESH;

D O I：

10.1016/j.memsci.2017.08.047

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Among the various environmental problems, that of water pollution is undoubtedly one of the most severe that mankind faces; this global challenge requires efficient separation of surfactant-stabilized oil/water emulsions to be solved. Here, a separation membrane with unique wettability is prepared by integrating polyacrylonitrile nanofibers with nanocrystalline zeolite imidazole framework (ZIF-8). The membrane shows prewetting-induced superoleophobicity under water and superhydrophobicity under oil. Surfactant-stabilized oil/water emulsions are effectively separated by the hierarchically nanostructured composite membrane. The hybrid membrane displays a high oil contact angle under water (159 degrees) and high water contact angle under oil (155 degrees), resulting in fast separation dynamics and high separation efficiency. This membrane represents a new approach to exploit multifunctional materials for water remediation.

引用

页码：10 / 17

页数：8

共 35 条

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