Because of the increasing amount of oily wastewater produced each day, it is important to develop superhydrophilic/underwater superoleophobic oil/water separation membranes with ultrahigh flux and high separation efficiency. In this paper, a superhydrophilic/underwater superoleophobic N-isopropylacrylamide-coated stainless steel mesh was prepared through a simple and convenient graft polymerization approach. The obtained mesh was able to separate oil/water mixtures only by gravity. In addition, the mesh showed high-efficiency separation ability (99.2%) and ultrahigh flux (235239 L∙m–2∙h–1). Importantly, due to the complex cross-linked bilayer structure, the prepared mesh exhibited good recycling performance and chemical stability in highly saline, alkaline and acidic environments.
Qingyong Zheng and Ya Gao contributed equally to this work.
引用本文:
. [J]. Frontiers of Chemical Science and Engineering, 2023, 17(1): 46-55.
Jiawei Wang, Jie Hu, Junjie Cheng, Zefei Huang, Baoqian Ye. Fabrication of a superhydrophilic/underwater superoleophobic stainless steel mesh for oil/water separation with ultrahigh flux. Front. Chem. Sci. Eng., 2023, 17(1): 46-55.
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