Journal
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
Volume 95, Issue -, Pages 71-77Publisher
ELSEVIER
DOI: 10.1016/j.jtice.2018.10.001
Keywords
Superhydrophobic copper mesh; Hierarchical nano-microstructure; Oil/water separation; Polyimide
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Funding
- Quangang Petrochemical Research Institute of Fujian Normal University [2017YJY06]
- Science and Technology Major Project of Fujian Province [2015YZ001-1]
- Education Department Foundation of Fujian [JAT160112]
- Fujian Province Science and Technology Project-School-enterprise cooperation in science and engineering [2016Y4001]
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With the development of economy and society, the wanton chaotic emission of oily wastewater causes serious pollution to environment. We attempt to prepare the superhydrophobic copper meshes modified by hierarchical polymeric microstructures to separate oil/water mixtures. After a solvothermal process and an acylation reaction, the surface of copper meshes can be well coated with a polyimide layer modified by lauroyl groups. The obtained meshes exhibited both superhydrophobic and superoleophilic properties with a water contact angle above 150 degrees due to the increased roughness and the hydrophobic property of long alkyl chains. Moreover, the modified meshes exhibit good durability under strongly acidic and alkaline environment conditions. Thereby, the as-prepared meshes can act as a high performance filter to separate oil/water mixture with a good reusability. It is expected that the superhydrophobic surface can serve as a promising alternative to conventional techniques for oil/water separation. (C) 2018 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
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