The efficient separation of surfactant-stabilized oil–water emulsions with a flexible and superhydrophilic graphene–TiO2 composite membrane
Sun, Darren Delai
Ng, Wun Jern
Date of Issue2014
School of Civil and Environmental Engineering
Nanyang Environment and Water Research Institute
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.
DRNTU::Engineering::Environmental engineering::Water treatment
Journal of materials chemistry A
© 2014 Royal Society of Chemistry. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Materials Chemistry A, Royal Society of Chemistry. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1039/C4TA02039A].