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

作者：Gao Peng; Liu Zhaoyang; Sun Darren Delai^*; Ng Wun Jern

来源：Journal of Materials Chemistry A, 2014, 2(34): 14082-14088.

DOI：10.1039/c4ta02039a

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.

• 出版日期2014
• 单位南阳理工学院