Journal
WATER SCIENCE AND TECHNOLOGY
Volume 77, Issue 5, Pages 1179-1185Publisher
IWA PUBLISHING
DOI: 10.2166/wst.2017.634
Keywords
anti-fouling; copper hydroxide; graphene oxide; oil-water emulsion separation; underwater superoleophobic
Funding
- Jiangsu Province Research Joint Innovation Fund-Prospective Joint Research Project [BY2014123-08]
- Yangzhou city policy guidance plans (Collaborative Innovation) [YZ2016198]
- Research Innovation Project for College Graduates of Jiangsu Province [SJLX16_0434]
- Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment
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Anti-fouling copper hydroxide nanowires (CHNs)-graphene oxide (GO) nanocomposites membrane was fabricated by a vacuum-assisted filtration self-assembly process. CHNs were covered on the surface and inserted into the interlayers of the GO nanosheets to form the rough surface and nanostructure channels. The membrane with water contact angles (CAs) of 53 degrees and oil CAs of 155 degrees exhibited superior stability, hydrophilicity, underwater superoleophobicity and ultralow oil adhesion, and hence it could separate the oil-water emulsion with a high efficiency of > 99%. This membrane showed the combined advantages of high oil rejection rate and ultralow membrane fouling, making it promising for practical oil-water emulsion separation applications.
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