Surface-Modified Polymer Nanofiber Membrane for High-Efficiency Microdust Capturing

Han Jung Kim, Seon Joo Park, Chul Soon Park, Thanh Hai Le, Sang Hun Lee, Tai Hwan Ha, Hyoung il Kim, Jinyeong Kim, Chang Soo Lee, Hyeonseok Yoon, Oh Seok Kwon

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Particulate matter (PM) pollution is serious human health issue. Various filter technologies have been developed to improve the air filtration efficiency. Recently, nanofibrous membrane filters have received much attention due to its outstanding transparency and high efficiency for PM ≤ 2.5 μm (PM2.5) capture/removal compared to conventional micro-structured filters. Although these filters provide high-efficiency PM2.5 capture, obtaining strong PM adhesion via surface engineering remains a challenge. In this study, we demonstrate a high efficiency PM2.5 capture air-filter by electrospun polyacrylonitrile nanofibers (EPNFs). The surface of the EPNFs was modified by oxygen plasma treatment for generating functional groups such as -CONH2, -COOH and -COOR. The EPNFs were utilized as air filter in hand-made PM removal system which is consisted of DC power supply, PM source, PM sensor and PM removal test chamber. The test result showed high air flow and effective air filtration (PM2.5 removal efficiency: 94.02 %, pressure drop: 18 Pa, Time to reach the PM level recommended by the World Health Organization (TWHO PM2.5): 15 min, quality factor: 0.1564 Pa−1) compared to commercial filters. The intermolecular interaction between the plasma-treated EPNFs (PEPNFs) and PMs was investigated by density functional theory (DFT) calculations. The PEPNF filter showed high long-term reproducibility in a cycle test with a high PM concentration (over 2,000 μg m−3). The filter was applied as a car interior air purifier using a cigar jack as a power supply, ca. 16 min was required to reach the PM level recommended by the World Health Organization (< 25 μg m−3).

Original languageEnglish
Pages (from-to)204-213
Number of pages10
JournalChemical Engineering Journal
Volume339
DOIs
Publication statusPublished - 2018 May 1

Fingerprint

Particulate Matter
Nanofibers
Polyacrylonitriles
particulate matter
Polymers
polymer
membrane
Membranes
filter
Air filters
Health
Plasmas
Air
Air cleaners
air
Jacks
World Health Organization
Beam plasma interactions
plasma
Transparency

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Cite this

Kim, H. J., Park, S. J., Park, C. S., Le, T. H., Hun Lee, S., Ha, T. H., ... Kwon, O. S. (2018). Surface-Modified Polymer Nanofiber Membrane for High-Efficiency Microdust Capturing. Chemical Engineering Journal, 339, 204-213. https://doi.org/10.1016/j.cej.2018.01.121
Kim, Han Jung ; Park, Seon Joo ; Park, Chul Soon ; Le, Thanh Hai ; Hun Lee, Sang ; Ha, Tai Hwan ; Kim, Hyoung il ; Kim, Jinyeong ; Lee, Chang Soo ; Yoon, Hyeonseok ; Kwon, Oh Seok. / Surface-Modified Polymer Nanofiber Membrane for High-Efficiency Microdust Capturing. In: Chemical Engineering Journal. 2018 ; Vol. 339. pp. 204-213.
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abstract = "Particulate matter (PM) pollution is serious human health issue. Various filter technologies have been developed to improve the air filtration efficiency. Recently, nanofibrous membrane filters have received much attention due to its outstanding transparency and high efficiency for PM ≤ 2.5 μm (PM2.5) capture/removal compared to conventional micro-structured filters. Although these filters provide high-efficiency PM2.5 capture, obtaining strong PM adhesion via surface engineering remains a challenge. In this study, we demonstrate a high efficiency PM2.5 capture air-filter by electrospun polyacrylonitrile nanofibers (EPNFs). The surface of the EPNFs was modified by oxygen plasma treatment for generating functional groups such as -CONH2, -COOH and -COOR. The EPNFs were utilized as air filter in hand-made PM removal system which is consisted of DC power supply, PM source, PM sensor and PM removal test chamber. The test result showed high air flow and effective air filtration (PM2.5 removal efficiency: 94.02 {\%}, pressure drop: 18 Pa, Time to reach the PM level recommended by the World Health Organization (TWHO PM2.5): 15 min, quality factor: 0.1564 Pa−1) compared to commercial filters. The intermolecular interaction between the plasma-treated EPNFs (PEPNFs) and PMs was investigated by density functional theory (DFT) calculations. The PEPNF filter showed high long-term reproducibility in a cycle test with a high PM concentration (over 2,000 μg m−3). The filter was applied as a car interior air purifier using a cigar jack as a power supply, ca. 16 min was required to reach the PM level recommended by the World Health Organization (< 25 μg m−3).",
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Kim, HJ, Park, SJ, Park, CS, Le, TH, Hun Lee, S, Ha, TH, Kim, HI, Kim, J, Lee, CS, Yoon, H & Kwon, OS 2018, 'Surface-Modified Polymer Nanofiber Membrane for High-Efficiency Microdust Capturing', Chemical Engineering Journal, vol. 339, pp. 204-213. https://doi.org/10.1016/j.cej.2018.01.121

Surface-Modified Polymer Nanofiber Membrane for High-Efficiency Microdust Capturing. / Kim, Han Jung; Park, Seon Joo; Park, Chul Soon; Le, Thanh Hai; Hun Lee, Sang; Ha, Tai Hwan; Kim, Hyoung il; Kim, Jinyeong; Lee, Chang Soo; Yoon, Hyeonseok; Kwon, Oh Seok.

In: Chemical Engineering Journal, Vol. 339, 01.05.2018, p. 204-213.

Research output: Contribution to journalArticle

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T1 - Surface-Modified Polymer Nanofiber Membrane for High-Efficiency Microdust Capturing

AU - Kim, Han Jung

AU - Park, Seon Joo

AU - Park, Chul Soon

AU - Le, Thanh Hai

AU - Hun Lee, Sang

AU - Ha, Tai Hwan

AU - Kim, Hyoung il

AU - Kim, Jinyeong

AU - Lee, Chang Soo

AU - Yoon, Hyeonseok

AU - Kwon, Oh Seok

PY - 2018/5/1

Y1 - 2018/5/1

N2 - Particulate matter (PM) pollution is serious human health issue. Various filter technologies have been developed to improve the air filtration efficiency. Recently, nanofibrous membrane filters have received much attention due to its outstanding transparency and high efficiency for PM ≤ 2.5 μm (PM2.5) capture/removal compared to conventional micro-structured filters. Although these filters provide high-efficiency PM2.5 capture, obtaining strong PM adhesion via surface engineering remains a challenge. In this study, we demonstrate a high efficiency PM2.5 capture air-filter by electrospun polyacrylonitrile nanofibers (EPNFs). The surface of the EPNFs was modified by oxygen plasma treatment for generating functional groups such as -CONH2, -COOH and -COOR. The EPNFs were utilized as air filter in hand-made PM removal system which is consisted of DC power supply, PM source, PM sensor and PM removal test chamber. The test result showed high air flow and effective air filtration (PM2.5 removal efficiency: 94.02 %, pressure drop: 18 Pa, Time to reach the PM level recommended by the World Health Organization (TWHO PM2.5): 15 min, quality factor: 0.1564 Pa−1) compared to commercial filters. The intermolecular interaction between the plasma-treated EPNFs (PEPNFs) and PMs was investigated by density functional theory (DFT) calculations. The PEPNF filter showed high long-term reproducibility in a cycle test with a high PM concentration (over 2,000 μg m−3). The filter was applied as a car interior air purifier using a cigar jack as a power supply, ca. 16 min was required to reach the PM level recommended by the World Health Organization (< 25 μg m−3).

AB - Particulate matter (PM) pollution is serious human health issue. Various filter technologies have been developed to improve the air filtration efficiency. Recently, nanofibrous membrane filters have received much attention due to its outstanding transparency and high efficiency for PM ≤ 2.5 μm (PM2.5) capture/removal compared to conventional micro-structured filters. Although these filters provide high-efficiency PM2.5 capture, obtaining strong PM adhesion via surface engineering remains a challenge. In this study, we demonstrate a high efficiency PM2.5 capture air-filter by electrospun polyacrylonitrile nanofibers (EPNFs). The surface of the EPNFs was modified by oxygen plasma treatment for generating functional groups such as -CONH2, -COOH and -COOR. The EPNFs were utilized as air filter in hand-made PM removal system which is consisted of DC power supply, PM source, PM sensor and PM removal test chamber. The test result showed high air flow and effective air filtration (PM2.5 removal efficiency: 94.02 %, pressure drop: 18 Pa, Time to reach the PM level recommended by the World Health Organization (TWHO PM2.5): 15 min, quality factor: 0.1564 Pa−1) compared to commercial filters. The intermolecular interaction between the plasma-treated EPNFs (PEPNFs) and PMs was investigated by density functional theory (DFT) calculations. The PEPNF filter showed high long-term reproducibility in a cycle test with a high PM concentration (over 2,000 μg m−3). The filter was applied as a car interior air purifier using a cigar jack as a power supply, ca. 16 min was required to reach the PM level recommended by the World Health Organization (< 25 μg m−3).

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