Journal
CHEMISTRY-AN ASIAN JOURNAL
Volume 11, Issue 4, Pages 561-567Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201501203
Keywords
membranes; oil-water separation; photocatalysis; superhydrophilicity; underwater superoleophobic interface
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Funding
- NTU
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Globally, efficient oil-water separation for surfactant-stabilized oil-water emulsions has been in urgent demand. The current options available for separation are neither sustainable nor resistant to fouling. Herein, we introduce a hierarchically nanostructured TiO2/Fe2O3 composite membrane, which is capable of separating surfactant-stabilized oil-water emulsions with high separation efficiency. The high oil rejection rate is contributed by the acquisition of an interconnected delicate network and underwater superoleophobic interface. Meanwhile, its self-cleaning function promote the facile recovery of the contaminated membrane. Furthermore, the mechanical flexible characteristic of the TiO2/Fe2O3 composite membrane widens its applicability in industrial employment. Thanks to these properties, this novel membrane can be considered as a practical option for treating surfactant-stabilized oil-water emulsions.
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