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. 2021 Dec 10;9:810861. doi: 10.3389/fchem.2021.810861

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Copyright © 2021 Li, Wang, Xu, Qiao, Li, Gong, Shi, Li, Gao, Liu, Zhang, Wei, Zhang and Liang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A) Contact angles of hydrophobic ZIF-8/PI nanofiber membranes. (B) Droplets of different pollution levels can be kept spherical. (C) The water-contact angles of both the PI nanofiber membranes and the PI/ZIF-8 nanofiber membranes were measured. (D) Water–oil separation efficiency. (E) Filter unit diagram. (F) The filtration efficiency of dichloromethane by PI membrane with different doping amount of ZIF-8. (G) Circulating filtration efficiency. (H) Circulating filtered oil flux.