NDLI: A smart switchable bioinspired copper foam responding to different pH droplets for reversible oil

Content Provider	Royal Society of Chemistry (RSC)
Author	Liu, Yan Son, Yan Zhang, Wei Zhang, Kaiteng Han, Zhiwu Spindler, Lena Marie Ren, Luquan
Copyright Year	2017
Abstract	A novel pH-responsive smart device has been developed for continuous separation of oil/water mixtures. Smart surfaces are obtained by electroless silver deposition followed by surface modification with a mixed solution of thiol containing carboxylic groups and methyl groups (HS(CH2)11CH3 and HS(CH2)10COOH). It was found that the wettability of the as-prepared copper foams can switch reversibly between superhydrophobicity and hydrophilicity according to their pH response. The as-prepared copper foam can easily remove the organic solvents either on water or underwater. Furthermore, the as-prepared copper foams can be applied to separate an oil-and-water mixture bidirectionally with high efficiency. This study provides a simple and environmentally friendly route to fabricate oil–water separation materials which have potential applications in industrial fields, such as in water treatment and petroleum refining. In particular, this smart surface is switchable under various pH conditions.
Starting Page	2603
Ending Page	2612
Page Count	10
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	5
Issue Number	6
Journal	Journal of Materials Chemistry A
DOI	10.1039/c6ta10772a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Smart device Thiol Wetting Copper Hydrophile PH Mineral oil
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

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