Fabrication of a superhydrophilic/underwater superoleophobic stainless steel mesh for oil/water separation with ultrahigh flux

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 -isopropylac...

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Bibliographic Details
Published in:Frontiers of chemical science and engineering 2023, Vol.17 (1), p.46-55
Main Authors: Wang, Jiawei, Hu, Jie, Cheng, Junjie, Huang, Zefei, Ye, Baoqian
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Isopropylacrylamide
Nanotechnology
Research Article
Separation
Stainless steels
Underwater
Wastewater
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Summary: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.
ISSN:2095-0179
2095-0187
DOI:10.1007/s11705-022-2170-2