Superhydrophobic and superoleophilic PH-CNT membrane for emulsified oil-water separation

被引：64

作者：

Zhao, Yanhua ^{[1
,2
]}

Guo, Jiaxin ^{[3
,4
]}

Li, Yuchao ^{[2
]}

Zhang, Xinning ^{[3
]}

An, Alicia Kyoungjin ^{[3
]}

Wang, Zuankai ^{[1
,2
]}

机构：

[1] City Univ Hong Kong, Shenzhen Res Inst, Shenzhen 518057, Peoples R China

[2] City Univ Hong Kong, Dept Mech Engn, Hong Kong 999077, Peoples R China

[3] City Univ Hong Kong, Sch Energy & Environm, Hong Kong 999077, Peoples R China

[4] Xi An Jiao Tong Univ, Sch Chem Engn & Technol, Xian 710049, Peoples R China

来源：

DESALINATION | 2022年 / 526卷

基金：

芬兰科学院; 中国博士后科学基金;

关键词：

Superhydrophobic; Superoleophilic; Hierarchically porous; Antifouling; Water-in-oil emulsion; OIL/WATER SEPARATION; SURFACE; POLYDOPAMINE; WETTABILITY; FABRICATION; REMOVAL; FILM;

D O I：

10.1016/j.desal.2021.115536

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Extensive efforts have been devoted to oil-water separation in recent years, especially the separation of water-in oil emulsions. In this study, we report a superhydrophobic and superoleophilic PH-CNT (poly vinylidene fluoridehexafluoropropylene, carbon nanotubes) membrane with highly porous structures for oil-water separation. The membrane possesses hierarchically layered micro/nano-porous structures both on the membrane surface and inside the nanofibers. The membrane effectively separated surfactant stabilized water-in-oil emulsions with micro/nano droplets, demonstrating a separation efficiency above 99.5%, while also exhibiting excellent recyclability with good chemical and mechanical stability. The PH-CNT membrane holds great potential for the purification of emulsified oil-water mixtures from industrial and domestic sources.

引用

页数：10

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