期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 7, 期 16, 页码 13815-13826出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.9b01774
关键词
Copper meshes; Oil/water separation; Superhydrophilic; Zwitterionic polymers; Antifouling
资金
- National Natural Science Foundation of China [21676169]
- National Key R&D Program of China [2016YFB0301701]
Efficiently separating oil and water has become a globally challenging problem. Herein, we report a novel graft polymerization method to synthesize poly(sulfobetaine methacrylate) @Cu(OH)(2) nanoneedle array (PSBMA@CHNNA)-coated copper meshes with superwetting and antifouling abilities to efficiently separate oil and water. The zwitterionic PSBMA@CHNNA-coated membranes were synthesized by the combination of chemical oxidation and a surface-initiated free-radical polymerization method. The as-synthesized mesh membranes showed a highly efficient separation capability toward different oil/water mixtures, oilfield wastewater, and oilfield produced fluids with a chemical oxygen demand (COD) in the filtrated water less than 30 ppm. The water fluxes of the as-synthesized meshes were as high as about 80 kL.h(-1).m(-2) for different oil/water mixtures and more than 10 kL.h(-1).m(-2) for the of oilfield wastewater. Moreover, oil/water emulsion of oilfield wastewater. Moreover, the as-synthesized membranes exhibited excellent antifouling ability to ensure easy cleaning, good stability, and durability for recycle use. With the inherent advantages of high efficiency, easy scale-up, and reusability, the current membrane fabrication strategy may offer an alternative promising approach to developing a new-generation membrane for practical oil/water separation.
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