The efficient separation of surfactant-stabilized oil-water emulsions with a flexible and superhydrophilic graphene-TiO2 composite membrane

Peng Gao; Zhaoyang Liu; Darren Delai Sun; Wun Jern Ng

doi:10.1039/c4ta02039a

The efficient separation of surfactant-stabilized oil-water emulsions with a flexible and superhydrophilic graphene-TiO₂ composite membrane

Peng Gao, Zhaoyang Liu, Darren Delai Sun^*, Wun Jern Ng

^*Corresponding author for this work

Nanyang Technological University

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

78 Citations (Scopus)

Abstract

It is a worldwide challenge to efficiently separate surfactant-stabilized oil-water emulsions. The existing separation membranes are prone to fouling or are incapable of proper separation. This study is the first to realize the efficient separation of surfactant-stabilized oil-water emulsions via the delicate design and fabrication of a hierarchically nanostructured graphene-TiO₂ membrane. During the oil-water separation process, this membrane demonstrates the combined advantages of high oil rejection rate and ultralow membrane fouling because of its interconnected three-dimensional nanoscale network, underwater superoleophobic interface, and self-cleaning function. Furthermore, the mechanical flexibility of this membrane endows it with great potential for wide industrial applications. This journal is

Original language	English
Pages (from-to)	14082-14088
Number of pages	7
Journal	Journal of Materials Chemistry A
Volume	2
Issue number	34
DOIs	https://doi.org/10.1039/c4ta02039a
Publication status	Published - 14 Sept 2014
Externally published	Yes

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The efficient separation of surfactant-stabilized oil-water emulsions with a flexible and superhydrophilic graphene-TiO₂ composite membrane

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