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

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 th...

Full description

Bibliographic Details
Main Authors: Gao, Peng, Liu, Zhaoyang, Sun, Darren Delai, Ng, Wun Jern
Other Authors: School of Civil and Environmental Engineering
Format: Journal Article
Language:English
Published: 2014
Subjects:
Online Access:https://hdl.handle.net/10356/105783
http://hdl.handle.net/10220/20967
http://dx.doi.org/10.1039/C4TA02039A
_version_ 1811680211307069440
author Gao, Peng
Liu, Zhaoyang
Sun, Darren Delai
Ng, Wun Jern
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Gao, Peng
Liu, Zhaoyang
Sun, Darren Delai
Ng, Wun Jern
author_sort Gao, Peng
collection NTU
description 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.
first_indexed 2024-10-01T03:21:27Z
format Journal Article
id ntu-10356/105783
institution Nanyang Technological University
language English
last_indexed 2024-10-01T03:21:27Z
publishDate 2014
record_format dspace
spelling ntu-10356/1057832019-12-06T21:57:46Z The efficient separation of surfactant-stabilized oil–water emulsions with a flexible and superhydrophilic graphene–TiO2 composite membrane Gao, Peng Liu, Zhaoyang Sun, Darren Delai Ng, Wun Jern School of Civil and Environmental Engineering Nanyang Environment and Water Research Institute DRNTU::Engineering::Environmental engineering::Water treatment DRNTU::Engineering::Materials::Nanostructured materials 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. NRF (Natl Research Foundation, S’pore) Accepted version 2014-09-24T01:51:11Z 2019-12-06T21:57:46Z 2014-09-24T01:51:11Z 2019-12-06T21:57:46Z 2014 2014 Journal Article Gao, P., Liu, Z., Sun, D. D., & Ng, W. J. (2014). The efficient separation of surfactant-stabilized oil-water emulsions with a flexible and superhydrophilic graphene-TiO2 composite membrane. Journal of materials chemistry A, 2(34), 14082-14088. https://hdl.handle.net/10356/105783 http://hdl.handle.net/10220/20967 http://dx.doi.org/10.1039/C4TA02039A en 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]. 6 p. application/pdf
spellingShingle DRNTU::Engineering::Environmental engineering::Water treatment
DRNTU::Engineering::Materials::Nanostructured materials
Gao, Peng
Liu, Zhaoyang
Sun, Darren Delai
Ng, Wun Jern
The efficient separation of surfactant-stabilized oil–water emulsions with a flexible and superhydrophilic graphene–TiO2 composite membrane
title The efficient separation of surfactant-stabilized oil–water emulsions with a flexible and superhydrophilic graphene–TiO2 composite membrane
title_full The efficient separation of surfactant-stabilized oil–water emulsions with a flexible and superhydrophilic graphene–TiO2 composite membrane
title_fullStr The efficient separation of surfactant-stabilized oil–water emulsions with a flexible and superhydrophilic graphene–TiO2 composite membrane
title_full_unstemmed The efficient separation of surfactant-stabilized oil–water emulsions with a flexible and superhydrophilic graphene–TiO2 composite membrane
title_short The efficient separation of surfactant-stabilized oil–water emulsions with a flexible and superhydrophilic graphene–TiO2 composite membrane
title_sort efficient separation of surfactant stabilized oil water emulsions with a flexible and superhydrophilic graphene tio2 composite membrane
topic DRNTU::Engineering::Environmental engineering::Water treatment
DRNTU::Engineering::Materials::Nanostructured materials
url https://hdl.handle.net/10356/105783
http://hdl.handle.net/10220/20967
http://dx.doi.org/10.1039/C4TA02039A
work_keys_str_mv AT gaopeng theefficientseparationofsurfactantstabilizedoilwateremulsionswithaflexibleandsuperhydrophilicgraphenetio2compositemembrane
AT liuzhaoyang theefficientseparationofsurfactantstabilizedoilwateremulsionswithaflexibleandsuperhydrophilicgraphenetio2compositemembrane
AT sundarrendelai theefficientseparationofsurfactantstabilizedoilwateremulsionswithaflexibleandsuperhydrophilicgraphenetio2compositemembrane
AT ngwunjern theefficientseparationofsurfactantstabilizedoilwateremulsionswithaflexibleandsuperhydrophilicgraphenetio2compositemembrane
AT gaopeng efficientseparationofsurfactantstabilizedoilwateremulsionswithaflexibleandsuperhydrophilicgraphenetio2compositemembrane
AT liuzhaoyang efficientseparationofsurfactantstabilizedoilwateremulsionswithaflexibleandsuperhydrophilicgraphenetio2compositemembrane
AT sundarrendelai efficientseparationofsurfactantstabilizedoilwateremulsionswithaflexibleandsuperhydrophilicgraphenetio2compositemembrane
AT ngwunjern efficientseparationofsurfactantstabilizedoilwateremulsionswithaflexibleandsuperhydrophilicgraphenetio2compositemembrane