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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) Thermogravimetric curves of PI and the ZIF-8-3/PI membranes. (B) Filtration efficiency of the PI nanofiber membranes and the ZIF-8-3/PI nanofiber membrane to PM_0.3 after being treated at different temperatures for 2 h. Scanning electron micrographs of the ZIF-8/PI nanofiber membranes before (C) and after (D) heat treatment (300°C).