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Salt-Induced Fabrication of Superhydrophilic and Underwater Superoleophobic PAA-g-PVDF Membranes for Effective Separation of Oil-in-Water Emulsions
Zhang, WB (张文彬); Zhu, YZ (朱玉长); Liu, X (刘霞); Wang, D (王栋); Li, JY (Li, Jingye); Jiang, L (Jiang, Lei); Jin, J (靳健)
2014
Source PublicationANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume53Issue:3Pages:856-860
AbstractConventional polymer membranes suffer from low flux and serious fouling when used for treating emulsified oil/water mixtures. Reported herein is the fabrication of a novel superhydrophilic and underwater superoleophobic poly(acrylic acid)-grafted PVDF filtration membrane using a salt-induced phase-inversion approach. A hierarchical micro/nanoscale structure is constructed on the membrane surface and endows it with a superhydrophilic/underwater superoleophobic property. The membrane separates both surfactant-free and surfactant-stabilized oil-in-water emulsions under either a small applied pressure (<0.3 bar) or gravity, with high separation efficiency and high flux, which is one to two orders of magnitude higher than those of commercial filtration membranes having a similar permeation property. The membrane exhibits an excellent antifouling property and is easily recycled for long-term use. The outstanding performance of the membrane and the efficient, energy and cost-effective preparation process highlight its potential for practical applications.
KeywordHydrophobic Effect Membranes Oil-in-water Emulsions Porous Membranes Surface Chemistry
Indexed BySCI
Language英语
WOS IDWOS:000330983300040
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinano.ac.cn/handle/332007/1761
Collection纳米仿生研究部_靳健团队
Corresponding AuthorJin, J (靳健)
Recommended Citation
GB/T 7714
Zhang, WB ,Zhu, YZ ,Liu, X ,et al. Salt-Induced Fabrication of Superhydrophilic and Underwater Superoleophobic PAA-g-PVDF Membranes for Effective Separation of Oil-in-Water Emulsions[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2014,53(3):856-860.
APA Zhang, WB .,Zhu, YZ .,Liu, X .,Wang, D .,Li, JY .,...&Jin, J .(2014).Salt-Induced Fabrication of Superhydrophilic and Underwater Superoleophobic PAA-g-PVDF Membranes for Effective Separation of Oil-in-Water Emulsions.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,53(3),856-860.
MLA Zhang, WB ,et al."Salt-Induced Fabrication of Superhydrophilic and Underwater Superoleophobic PAA-g-PVDF Membranes for Effective Separation of Oil-in-Water Emulsions".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 53.3(2014):856-860.
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