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Biodegradable electrospinning superhydrophilic nanofiber membranes for ultrafast oil-water separation
Although membrane technology has attracted considerable attention for oily wastewater treatment, the plastic waste generated from discarded membranes presents an immediate challenge for achieving eco-friendly separation. We designed on-demand biodegradable superhydrophilic membranes composed of poly...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10446487/ https://www.ncbi.nlm.nih.gov/pubmed/37611103 http://dx.doi.org/10.1126/sciadv.adh8195 |
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author | Cheng, Xiquan Li, Tongyu Yan, Linlin Jiao, Yang Zhang, Yingjie Wang, Kai Cheng, Zhongjun Ma, Jun Shao, Lu |
author_facet | Cheng, Xiquan Li, Tongyu Yan, Linlin Jiao, Yang Zhang, Yingjie Wang, Kai Cheng, Zhongjun Ma, Jun Shao, Lu |
author_sort | Cheng, Xiquan |
collection | PubMed |
description | Although membrane technology has attracted considerable attention for oily wastewater treatment, the plastic waste generated from discarded membranes presents an immediate challenge for achieving eco-friendly separation. We designed on-demand biodegradable superhydrophilic membranes composed of polylactic acid nanofibers in conjunction with polyethylene oxide hydrogels using electrospinning technology for ultrafast purification of oily water. Our results showed that the use of the polyethylene oxide hydrogels increased the number of hydrogen bonds formed between the membrane surface and water molecules by 357.6%. This converted hydrophobic membranes into superhydrophilic ones, which prevented membrane fouling and accelerated emulsion penetration through the membranes. The oil-in-water emulsion permeance of our newly designed nanofiber membranes increased by 61.9 times (2.1 × 10(4) liters per square meter per hour per bar) with separation efficiency >99.6%, which was superior to state-of-the-art membranes. Moreover, the formation of hydrogen bonds was found to accelerate polylactic acid biodegradation into lactic acid by over 30%, offering a promising approach for waste membrane treatment. |
format | Online Article Text |
id | pubmed-10446487 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-104464872023-08-24 Biodegradable electrospinning superhydrophilic nanofiber membranes for ultrafast oil-water separation Cheng, Xiquan Li, Tongyu Yan, Linlin Jiao, Yang Zhang, Yingjie Wang, Kai Cheng, Zhongjun Ma, Jun Shao, Lu Sci Adv Physical and Materials Sciences Although membrane technology has attracted considerable attention for oily wastewater treatment, the plastic waste generated from discarded membranes presents an immediate challenge for achieving eco-friendly separation. We designed on-demand biodegradable superhydrophilic membranes composed of polylactic acid nanofibers in conjunction with polyethylene oxide hydrogels using electrospinning technology for ultrafast purification of oily water. Our results showed that the use of the polyethylene oxide hydrogels increased the number of hydrogen bonds formed between the membrane surface and water molecules by 357.6%. This converted hydrophobic membranes into superhydrophilic ones, which prevented membrane fouling and accelerated emulsion penetration through the membranes. The oil-in-water emulsion permeance of our newly designed nanofiber membranes increased by 61.9 times (2.1 × 10(4) liters per square meter per hour per bar) with separation efficiency >99.6%, which was superior to state-of-the-art membranes. Moreover, the formation of hydrogen bonds was found to accelerate polylactic acid biodegradation into lactic acid by over 30%, offering a promising approach for waste membrane treatment. American Association for the Advancement of Science 2023-08-23 /pmc/articles/PMC10446487/ /pubmed/37611103 http://dx.doi.org/10.1126/sciadv.adh8195 Text en Copyright © 2023 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
spellingShingle | Physical and Materials Sciences Cheng, Xiquan Li, Tongyu Yan, Linlin Jiao, Yang Zhang, Yingjie Wang, Kai Cheng, Zhongjun Ma, Jun Shao, Lu Biodegradable electrospinning superhydrophilic nanofiber membranes for ultrafast oil-water separation |
title | Biodegradable electrospinning superhydrophilic nanofiber membranes for ultrafast oil-water separation |
title_full | Biodegradable electrospinning superhydrophilic nanofiber membranes for ultrafast oil-water separation |
title_fullStr | Biodegradable electrospinning superhydrophilic nanofiber membranes for ultrafast oil-water separation |
title_full_unstemmed | Biodegradable electrospinning superhydrophilic nanofiber membranes for ultrafast oil-water separation |
title_short | Biodegradable electrospinning superhydrophilic nanofiber membranes for ultrafast oil-water separation |
title_sort | biodegradable electrospinning superhydrophilic nanofiber membranes for ultrafast oil-water separation |
topic | Physical and Materials Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10446487/ https://www.ncbi.nlm.nih.gov/pubmed/37611103 http://dx.doi.org/10.1126/sciadv.adh8195 |
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