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Ferroelectric PVDF nanofiber membrane for high-efficiency PM0.3 air filtration with low air flow resistance

The significant public health concerns related to particulate matter (PM) air pollutants and the airborne transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have led to considerable interest in high-performance air filtration membranes. Highly ferroelectric polyvinylidene f...

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Autores principales: Bui, Tan Tan, Shin, Min Kyoung, Jee, Seung Yong, Long, Dang Xuan, Hong, Jongin, Kim, Myung-Gil
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier B.V. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8800002/
https://www.ncbi.nlm.nih.gov/pubmed/35125661
http://dx.doi.org/10.1016/j.colsurfa.2022.128418
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author Bui, Tan Tan
Shin, Min Kyoung
Jee, Seung Yong
Long, Dang Xuan
Hong, Jongin
Kim, Myung-Gil
author_facet Bui, Tan Tan
Shin, Min Kyoung
Jee, Seung Yong
Long, Dang Xuan
Hong, Jongin
Kim, Myung-Gil
author_sort Bui, Tan Tan
collection PubMed
description The significant public health concerns related to particulate matter (PM) air pollutants and the airborne transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have led to considerable interest in high-performance air filtration membranes. Highly ferroelectric polyvinylidene fluoride (PVDF) nanofiber (NF) filter membranes are successfully fabricated via electrospinning for high-performance low-cost air filtration. Spectroscopic and ferro-/piezoelectric analyses of PVDF NF show that a thinner PVDF NF typically forms a ferroelectric β phase with a confinement effect. A 70-nm PVDF NF membrane exhibits the highest fraction of β phase (87%) and the largest polarization behavior from piezoresponse force microscopy. An ultrathin 70-nm PVDF NF membrane exhibits a high PM(0.3) filtration efficiency of 97.40% with a low pressure drop of 51 Pa at an air flow of 5.3 cm/s owing to the synergetic combination of the slip effect and ferroelectric dipole interaction. Additionally, the 70-nm PVDF NF membrane shows excellent thermal and chemical stabilities with negligible filtration performance degradation (air filtration efficiency of 95.99% and 87.90% and pressure drop of 55 and 65 Pa, respectively) after 24 h of heating at 120 °C and 1 h immersion in isopropanol.
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spelling pubmed-88000022022-01-31 Ferroelectric PVDF nanofiber membrane for high-efficiency PM0.3 air filtration with low air flow resistance Bui, Tan Tan Shin, Min Kyoung Jee, Seung Yong Long, Dang Xuan Hong, Jongin Kim, Myung-Gil Colloids Surf A Physicochem Eng Asp Article The significant public health concerns related to particulate matter (PM) air pollutants and the airborne transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have led to considerable interest in high-performance air filtration membranes. Highly ferroelectric polyvinylidene fluoride (PVDF) nanofiber (NF) filter membranes are successfully fabricated via electrospinning for high-performance low-cost air filtration. Spectroscopic and ferro-/piezoelectric analyses of PVDF NF show that a thinner PVDF NF typically forms a ferroelectric β phase with a confinement effect. A 70-nm PVDF NF membrane exhibits the highest fraction of β phase (87%) and the largest polarization behavior from piezoresponse force microscopy. An ultrathin 70-nm PVDF NF membrane exhibits a high PM(0.3) filtration efficiency of 97.40% with a low pressure drop of 51 Pa at an air flow of 5.3 cm/s owing to the synergetic combination of the slip effect and ferroelectric dipole interaction. Additionally, the 70-nm PVDF NF membrane shows excellent thermal and chemical stabilities with negligible filtration performance degradation (air filtration efficiency of 95.99% and 87.90% and pressure drop of 55 and 65 Pa, respectively) after 24 h of heating at 120 °C and 1 h immersion in isopropanol. Elsevier B.V. 2022-05-05 2022-01-29 /pmc/articles/PMC8800002/ /pubmed/35125661 http://dx.doi.org/10.1016/j.colsurfa.2022.128418 Text en © 2022 Elsevier B.V. All rights reserved. Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.
spellingShingle Article
Bui, Tan Tan
Shin, Min Kyoung
Jee, Seung Yong
Long, Dang Xuan
Hong, Jongin
Kim, Myung-Gil
Ferroelectric PVDF nanofiber membrane for high-efficiency PM0.3 air filtration with low air flow resistance
title Ferroelectric PVDF nanofiber membrane for high-efficiency PM0.3 air filtration with low air flow resistance
title_full Ferroelectric PVDF nanofiber membrane for high-efficiency PM0.3 air filtration with low air flow resistance
title_fullStr Ferroelectric PVDF nanofiber membrane for high-efficiency PM0.3 air filtration with low air flow resistance
title_full_unstemmed Ferroelectric PVDF nanofiber membrane for high-efficiency PM0.3 air filtration with low air flow resistance
title_short Ferroelectric PVDF nanofiber membrane for high-efficiency PM0.3 air filtration with low air flow resistance
title_sort ferroelectric pvdf nanofiber membrane for high-efficiency pm0.3 air filtration with low air flow resistance
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8800002/
https://www.ncbi.nlm.nih.gov/pubmed/35125661
http://dx.doi.org/10.1016/j.colsurfa.2022.128418
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