Abstract
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.
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This work is supported by the National Natural Science Foundation of China (Grant No. 51473070).
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Wang, J., Hu, J., Cheng, J. et al. Fabrication of a superhydrophilic/underwater superoleophobic stainless steel mesh for oil/water separation with ultrahigh flux. Front. Chem. Sci. Eng. 17, 46–55 (2023). https://doi.org/10.1007/s11705-022-2170-2
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DOI: https://doi.org/10.1007/s11705-022-2170-2