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High-Performance Washable PM(2.5) Filter Fabricated with Laser-Induced Graphene
This study demonstrates a novel application of laser-induced graphene (LIG) as a reusable conductive particulate matter (PM) filter. Four types of LIG-based filters were fabricated based on the laser-induced pyrolysis of thin polyimide (PI) sheets, each pyrolyzed on either a single side or both side...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8509409/ https://www.ncbi.nlm.nih.gov/pubmed/34639946 http://dx.doi.org/10.3390/ma14195551 |
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author | Nguyen, Anh-Phan Kang, Won-Kyu Lee, Jung-Bae In, Jung-Bin |
author_facet | Nguyen, Anh-Phan Kang, Won-Kyu Lee, Jung-Bae In, Jung-Bin |
author_sort | Nguyen, Anh-Phan |
collection | PubMed |
description | This study demonstrates a novel application of laser-induced graphene (LIG) as a reusable conductive particulate matter (PM) filter. Four types of LIG-based filters were fabricated based on the laser-induced pyrolysis of thin polyimide (PI) sheets, each pyrolyzed on either a single side or both sides, with or without densification. The LIG filters exhibited a high removal efficiency while maintaining minimal pressure drop compared to a commercial fiberglass filter. The densified LIG (dLIG) filters displayed a higher PM(2.5) removal efficiency (>99.86%) than regular LIG filters. The dLIG filters also exhibited excellent durability when tested for washability by ultrasonication in tap water. After being cleaned and left to dry, the structures of the dLIG filters were well-maintained; their filtration efficiencies were also well-maintained (less than a 7% change in PM(2.5) removal efficiency), and their resistances only marginally increased (less than a 7% increase after five uses). These results demonstrate the robustness and reusability of the dLIG filters and the accessibility of their cleaning (not requiring aggressive cleaning agents). These promising features will enable the application of LIG in economical, scalable, and high-performance air cleaning. |
format | Online Article Text |
id | pubmed-8509409 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-85094092021-10-13 High-Performance Washable PM(2.5) Filter Fabricated with Laser-Induced Graphene Nguyen, Anh-Phan Kang, Won-Kyu Lee, Jung-Bae In, Jung-Bin Materials (Basel) Article This study demonstrates a novel application of laser-induced graphene (LIG) as a reusable conductive particulate matter (PM) filter. Four types of LIG-based filters were fabricated based on the laser-induced pyrolysis of thin polyimide (PI) sheets, each pyrolyzed on either a single side or both sides, with or without densification. The LIG filters exhibited a high removal efficiency while maintaining minimal pressure drop compared to a commercial fiberglass filter. The densified LIG (dLIG) filters displayed a higher PM(2.5) removal efficiency (>99.86%) than regular LIG filters. The dLIG filters also exhibited excellent durability when tested for washability by ultrasonication in tap water. After being cleaned and left to dry, the structures of the dLIG filters were well-maintained; their filtration efficiencies were also well-maintained (less than a 7% change in PM(2.5) removal efficiency), and their resistances only marginally increased (less than a 7% increase after five uses). These results demonstrate the robustness and reusability of the dLIG filters and the accessibility of their cleaning (not requiring aggressive cleaning agents). These promising features will enable the application of LIG in economical, scalable, and high-performance air cleaning. MDPI 2021-09-24 /pmc/articles/PMC8509409/ /pubmed/34639946 http://dx.doi.org/10.3390/ma14195551 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Nguyen, Anh-Phan Kang, Won-Kyu Lee, Jung-Bae In, Jung-Bin High-Performance Washable PM(2.5) Filter Fabricated with Laser-Induced Graphene |
title | High-Performance Washable PM(2.5) Filter Fabricated with Laser-Induced Graphene |
title_full | High-Performance Washable PM(2.5) Filter Fabricated with Laser-Induced Graphene |
title_fullStr | High-Performance Washable PM(2.5) Filter Fabricated with Laser-Induced Graphene |
title_full_unstemmed | High-Performance Washable PM(2.5) Filter Fabricated with Laser-Induced Graphene |
title_short | High-Performance Washable PM(2.5) Filter Fabricated with Laser-Induced Graphene |
title_sort | high-performance washable pm(2.5) filter fabricated with laser-induced graphene |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8509409/ https://www.ncbi.nlm.nih.gov/pubmed/34639946 http://dx.doi.org/10.3390/ma14195551 |
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