Multifunctional TiO2/polyacrylonitrile nanofibers for high efficiency PM2.5 capture, UV filter, and anti-bacteria activity

Kuan Nien Chen, Fitri Nur Indah Sari, Jyh-Ming Ting

Research output: Contribution to journalArticle

Abstract

In this work we present a multifunctional filter having polyacrylonitrile (PAN) nanofibers with embedded commercial P25 and/or TiO2 bead filler. The composite nanofibers were synthesized through a green method of electrospinning. The properties of the filters having single- and/or binary-filler composite fibers were investigated. It was found that TiO2 beads have higher electrostatic attraction to capture PM2.5 than P25. Binary-filler nanofiber filter having a higher beads/P25 ratio shows an excellent filtration efficiency of 96.75% with a low pressure drop of 88 Pa. As a result, a high quality factor of 0.039 has been obtained. This is 177% enhancement as compared to the PAN-only filter. Furthermore, the composite filters also exhibit antibacterial activity of 5.5 under 30 min UV irradiation, which is 9 times higher than that of the PAN-only filter. These results indicate that PAN-based composite filter with commercial P25 and/or TiO2 beads fillers is excellent material for making facial mask.

Original languageEnglish
Pages (from-to)157-164
Number of pages8
JournalApplied Surface Science
Volume493
DOIs
Publication statusPublished - 2019 Nov 1

Fingerprint

polyacrylonitrile
Polyacrylonitriles
Nanofibers
bacteria
Fillers
Bacteria
filters
fillers
Composite materials
beads
Electrospinning
composite materials
Pressure drop
Masks
Electrostatics
Irradiation
fiber composites
pressure drop
Fibers
attraction

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Cite this

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title = "Multifunctional TiO2/polyacrylonitrile nanofibers for high efficiency PM2.5 capture, UV filter, and anti-bacteria activity",
abstract = "In this work we present a multifunctional filter having polyacrylonitrile (PAN) nanofibers with embedded commercial P25 and/or TiO2 bead filler. The composite nanofibers were synthesized through a green method of electrospinning. The properties of the filters having single- and/or binary-filler composite fibers were investigated. It was found that TiO2 beads have higher electrostatic attraction to capture PM2.5 than P25. Binary-filler nanofiber filter having a higher beads/P25 ratio shows an excellent filtration efficiency of 96.75{\%} with a low pressure drop of 88 Pa. As a result, a high quality factor of 0.039 has been obtained. This is 177{\%} enhancement as compared to the PAN-only filter. Furthermore, the composite filters also exhibit antibacterial activity of 5.5 under 30 min UV irradiation, which is 9 times higher than that of the PAN-only filter. These results indicate that PAN-based composite filter with commercial P25 and/or TiO2 beads fillers is excellent material for making facial mask.",
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Multifunctional TiO2/polyacrylonitrile nanofibers for high efficiency PM2.5 capture, UV filter, and anti-bacteria activity. / Chen, Kuan Nien; Sari, Fitri Nur Indah; Ting, Jyh-Ming.

In: Applied Surface Science, Vol. 493, 01.11.2019, p. 157-164.

Research output: Contribution to journalArticle

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