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

Yanhua Zhao; Jiaxin Guo; Yuchao Li; Xinning Zhang; Alicia Kyoungjin An; Zuankai Wang

doi:10.1016/j.desal.2021.115536

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

Yanhua Zhao
, Jiaxin Guo
, Yuchao Li
, Xinning Zhang
, Alicia Kyoungjin An
, Zuankai Wang

School of Chemical Engineering and Technology

Research output: Contribution to journal › Article › peer-review

74 Scopus citations

Abstract

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 fluoride-hexafluoropropylene, 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.

Original language	English
Article number	115536
Journal	Desalination
Volume	526
DOIs	https://doi.org/10.1016/j.desal.2021.115536
State	Published - 15 Mar 2022

Keywords

Antifouling
Hierarchically porous
Superhydrophobic
Superoleophilic
Water-in-oil emulsion

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10.1016/j.desal.2021.115536

Cite this

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title = "Superhydrophobic and superoleophilic PH-CNT membrane for emulsified oil-water separation",

abstract = "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 fluoride-hexafluoropropylene, 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.",

keywords = "Antifouling, Hierarchically porous, Superhydrophobic, Superoleophilic, Water-in-oil emulsion",

author = "Yanhua Zhao and Jiaxin Guo and Yuchao Li and Xinning Zhang and An, \{Alicia Kyoungjin\} and Zuankai Wang",

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doi = "10.1016/j.desal.2021.115536",

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T1 - Superhydrophobic and superoleophilic PH-CNT membrane for emulsified oil-water separation

AU - Zhao, Yanhua

AU - Guo, Jiaxin

AU - Li, Yuchao

AU - Zhang, Xinning

AU - An, Alicia Kyoungjin

AU - Wang, Zuankai

PY - 2022/3/15

Y1 - 2022/3/15

N2 - 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 fluoride-hexafluoropropylene, 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.

AB - 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 fluoride-hexafluoropropylene, 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.

KW - Antifouling

KW - Hierarchically porous

KW - Superhydrophobic

KW - Superoleophilic

KW - Water-in-oil emulsion

UR - https://www.scopus.com/pages/publications/85122721737

U2 - 10.1016/j.desal.2021.115536

DO - 10.1016/j.desal.2021.115536

M3 - 文章

AN - SCOPUS:85122721737

SN - 0011-9164

VL - 526

JO - Desalination

JF - Desalination

M1 - 115536

ER -

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

Abstract

Keywords

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