Journal
MATERIALS LETTERS
Volume 182, Issue -, Pages 68-71Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2016.06.087
Keywords
Cu2S; Microstructure; Surfaces; Underwater superoleophobic; Oil-water separation
Funding
- National Natural Science Foundation of China [21376093, 21176091, 51476059]
- project of Guangzhou Science and Technology Plan [201607010172]
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A novel Cu2S coated copper mesh with unique curled plate-like structure was prepared via a simple and cost-effective electrochemical anodization approach. The as-prepared coated mesh shows super-hydrophilicity and underwater superoleophobicity and low adhesion property to oil. The mesh was used to separate various oil-water mixtures with high efficiency, which allowed water to pass through while it repelled oil completely. In addition, the coated mesh still maintained high separation efficiency above 97% after repeated 50 separation times for hexane/water mixture. These suggest that the coated mesh possesses superhydrophilic and underwater superoleophobic properties and stable oil-water separation performance. Therefore, the Cu2S coated copper mesh can be a novel ideal candidate material for oil water separation. (C) 2016 Elsevier B.V. All rights reserved.
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