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Microwave-assisted design of nanoporous graphene membrane for ultrafast and switchable organic solvent nanofiltration
Layered two-dimensional materials can potentially be utilized for organic solvent nanofiltration (OSN) membrane fabrication owing to their precise molecular sieving by the interlayer structure and excellent stability in harsh conditions. Nevertheless, the extensive tortuosity of nanochannels and bul...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9935848/ https://www.ncbi.nlm.nih.gov/pubmed/36797272 http://dx.doi.org/10.1038/s41467-023-36524-x |
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author | Kang, Junhyeok Ko, Yeongnam Kim, Jeong Pil Kim, Ju Yeon Kim, Jiwon Kwon, Ohchan Kim, Ki Chul Kim, Dae Woo |
author_facet | Kang, Junhyeok Ko, Yeongnam Kim, Jeong Pil Kim, Ju Yeon Kim, Jiwon Kwon, Ohchan Kim, Ki Chul Kim, Dae Woo |
author_sort | Kang, Junhyeok |
collection | PubMed |
description | Layered two-dimensional materials can potentially be utilized for organic solvent nanofiltration (OSN) membrane fabrication owing to their precise molecular sieving by the interlayer structure and excellent stability in harsh conditions. Nevertheless, the extensive tortuosity of nanochannels and bulky solvent molecules impede rapid permeability. Herein, nanoporous graphene (NG) with a high density of sp(2) carbon domain was synthesized via sequential thermal pore activation of graphene oxide (GO) and microwave-assisted reduction. Due to the smooth sp(2) carbon domain surfaces and dense nanopores, the microwave-treated nanoporous graphene membrane exhibited ultrafast organic solvent permeance (e.g., IPA: 2278 LMH/bar) with excellent stability under practical cross-flow conditions. Furthermore, the membrane molecular weight cut-off (MWCO) is switchable from 500 Da size of molecule to sub-nanometer-size molecules depending on the solvent type, and this switching occurs spontaneously with solvent change. These properties indicate feasibility of multiple (both binary and ternary) organic mixture separation using a single membrane. The nanochannel structure effect on solvent transport is also investigated using computation calculations. |
format | Online Article Text |
id | pubmed-9935848 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-99358482023-02-18 Microwave-assisted design of nanoporous graphene membrane for ultrafast and switchable organic solvent nanofiltration Kang, Junhyeok Ko, Yeongnam Kim, Jeong Pil Kim, Ju Yeon Kim, Jiwon Kwon, Ohchan Kim, Ki Chul Kim, Dae Woo Nat Commun Article Layered two-dimensional materials can potentially be utilized for organic solvent nanofiltration (OSN) membrane fabrication owing to their precise molecular sieving by the interlayer structure and excellent stability in harsh conditions. Nevertheless, the extensive tortuosity of nanochannels and bulky solvent molecules impede rapid permeability. Herein, nanoporous graphene (NG) with a high density of sp(2) carbon domain was synthesized via sequential thermal pore activation of graphene oxide (GO) and microwave-assisted reduction. Due to the smooth sp(2) carbon domain surfaces and dense nanopores, the microwave-treated nanoporous graphene membrane exhibited ultrafast organic solvent permeance (e.g., IPA: 2278 LMH/bar) with excellent stability under practical cross-flow conditions. Furthermore, the membrane molecular weight cut-off (MWCO) is switchable from 500 Da size of molecule to sub-nanometer-size molecules depending on the solvent type, and this switching occurs spontaneously with solvent change. These properties indicate feasibility of multiple (both binary and ternary) organic mixture separation using a single membrane. The nanochannel structure effect on solvent transport is also investigated using computation calculations. Nature Publishing Group UK 2023-02-17 /pmc/articles/PMC9935848/ /pubmed/36797272 http://dx.doi.org/10.1038/s41467-023-36524-x Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Kang, Junhyeok Ko, Yeongnam Kim, Jeong Pil Kim, Ju Yeon Kim, Jiwon Kwon, Ohchan Kim, Ki Chul Kim, Dae Woo Microwave-assisted design of nanoporous graphene membrane for ultrafast and switchable organic solvent nanofiltration |
title | Microwave-assisted design of nanoporous graphene membrane for ultrafast and switchable organic solvent nanofiltration |
title_full | Microwave-assisted design of nanoporous graphene membrane for ultrafast and switchable organic solvent nanofiltration |
title_fullStr | Microwave-assisted design of nanoporous graphene membrane for ultrafast and switchable organic solvent nanofiltration |
title_full_unstemmed | Microwave-assisted design of nanoporous graphene membrane for ultrafast and switchable organic solvent nanofiltration |
title_short | Microwave-assisted design of nanoporous graphene membrane for ultrafast and switchable organic solvent nanofiltration |
title_sort | microwave-assisted design of nanoporous graphene membrane for ultrafast and switchable organic solvent nanofiltration |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9935848/ https://www.ncbi.nlm.nih.gov/pubmed/36797272 http://dx.doi.org/10.1038/s41467-023-36524-x |
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