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ZIF-8/PI Nanofibrous Membranes With High-Temperature Resistance for Highly Efficient PM(0.3) Air Filtration and Oil-Water Separation
Air and water pollution poses a serious threat to public health and the ecological environment worldwide. Particulate matter (PM) is the major air pollutant, and its primary sources are processes that require high temperatures, such as fossil fuel combustion and vehicle exhaust. PM(0.3) can penetrat...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8702621/ https://www.ncbi.nlm.nih.gov/pubmed/34957057 http://dx.doi.org/10.3389/fchem.2021.810861 |
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author | Li, Yu Wang, Dan Xu, Guanchen Qiao, Li Li, Yong Gong, Hongyu Shi, Lei Li, Dongwei Gao, Meng Liu, Guoran Zhang, Jingjing Wei, Wenhui Zhang, Xingshuang Liang, Xiu |
author_facet | Li, Yu Wang, Dan Xu, Guanchen Qiao, Li Li, Yong Gong, Hongyu Shi, Lei Li, Dongwei Gao, Meng Liu, Guoran Zhang, Jingjing Wei, Wenhui Zhang, Xingshuang Liang, Xiu |
author_sort | Li, Yu |
collection | PubMed |
description | Air and water pollution poses a serious threat to public health and the ecological environment worldwide. Particulate matter (PM) is the major air pollutant, and its primary sources are processes that require high temperatures, such as fossil fuel combustion and vehicle exhaust. PM(0.3) can penetrate and seriously harm the bronchi of the lungs, but it is difficult to remove PM(0.3) due to its small size. Therefore, PM(0.3) air filters that are highly efficient and resistant to high temperatures must be developed. Polyimide (PI) is an excellent polymer with a high temperature resistance and a good mechanical property. Air filters made from PI nanofibers have a high PM removal efficiency and a low air flow resistance. Herein, zeolitic imidazolate framework-8 (ZIF-8) was used to modify PI nanofibers to fabricate air filters with a high specific surface area and filtration efficiency. Compared with traditional PI membranes, the ZIF-8/PI multifunction nanofiber membranes achieved super-high filtration efficiency for ultrafine particles (PM(0.3), 100%), and the pressure drop was only 63 Pa. The filtration mechanism of performance improvement caused by the introduction of ZIF-8/PI nanofiber membrane is explored. Moreover, the ZIF-8/PI nanofiber membranes exhibited excellent thermal stability (300 C) and efficient water–oil separation ability (99.85%). |
format | Online Article Text |
id | pubmed-8702621 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-87026212021-12-25 ZIF-8/PI Nanofibrous Membranes With High-Temperature Resistance for Highly Efficient PM(0.3) Air Filtration and Oil-Water Separation Li, Yu Wang, Dan Xu, Guanchen Qiao, Li Li, Yong Gong, Hongyu Shi, Lei Li, Dongwei Gao, Meng Liu, Guoran Zhang, Jingjing Wei, Wenhui Zhang, Xingshuang Liang, Xiu Front Chem Chemistry Air and water pollution poses a serious threat to public health and the ecological environment worldwide. Particulate matter (PM) is the major air pollutant, and its primary sources are processes that require high temperatures, such as fossil fuel combustion and vehicle exhaust. PM(0.3) can penetrate and seriously harm the bronchi of the lungs, but it is difficult to remove PM(0.3) due to its small size. Therefore, PM(0.3) air filters that are highly efficient and resistant to high temperatures must be developed. Polyimide (PI) is an excellent polymer with a high temperature resistance and a good mechanical property. Air filters made from PI nanofibers have a high PM removal efficiency and a low air flow resistance. Herein, zeolitic imidazolate framework-8 (ZIF-8) was used to modify PI nanofibers to fabricate air filters with a high specific surface area and filtration efficiency. Compared with traditional PI membranes, the ZIF-8/PI multifunction nanofiber membranes achieved super-high filtration efficiency for ultrafine particles (PM(0.3), 100%), and the pressure drop was only 63 Pa. The filtration mechanism of performance improvement caused by the introduction of ZIF-8/PI nanofiber membrane is explored. Moreover, the ZIF-8/PI nanofiber membranes exhibited excellent thermal stability (300 C) and efficient water–oil separation ability (99.85%). Frontiers Media S.A. 2021-12-10 /pmc/articles/PMC8702621/ /pubmed/34957057 http://dx.doi.org/10.3389/fchem.2021.810861 Text en Copyright © 2021 Li, Wang, Xu, Qiao, Li, Gong, Shi, Li, Gao, Liu, Zhang, Wei, Zhang and Liang. https://creativecommons.org/licenses/by/4.0/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. |
spellingShingle | Chemistry Li, Yu Wang, Dan Xu, Guanchen Qiao, Li Li, Yong Gong, Hongyu Shi, Lei Li, Dongwei Gao, Meng Liu, Guoran Zhang, Jingjing Wei, Wenhui Zhang, Xingshuang Liang, Xiu ZIF-8/PI Nanofibrous Membranes With High-Temperature Resistance for Highly Efficient PM(0.3) Air Filtration and Oil-Water Separation |
title | ZIF-8/PI Nanofibrous Membranes With High-Temperature Resistance for Highly Efficient PM(0.3) Air Filtration and Oil-Water Separation |
title_full | ZIF-8/PI Nanofibrous Membranes With High-Temperature Resistance for Highly Efficient PM(0.3) Air Filtration and Oil-Water Separation |
title_fullStr | ZIF-8/PI Nanofibrous Membranes With High-Temperature Resistance for Highly Efficient PM(0.3) Air Filtration and Oil-Water Separation |
title_full_unstemmed | ZIF-8/PI Nanofibrous Membranes With High-Temperature Resistance for Highly Efficient PM(0.3) Air Filtration and Oil-Water Separation |
title_short | ZIF-8/PI Nanofibrous Membranes With High-Temperature Resistance for Highly Efficient PM(0.3) Air Filtration and Oil-Water Separation |
title_sort | zif-8/pi nanofibrous membranes with high-temperature resistance for highly efficient pm(0.3) air filtration and oil-water separation |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8702621/ https://www.ncbi.nlm.nih.gov/pubmed/34957057 http://dx.doi.org/10.3389/fchem.2021.810861 |
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