Tribo-charge enhanced hybrid air filter masks for efficient particulate matter capture with greatly extended service life

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

2 Scopus Citations
View graph of relations

Author(s)

  • Ye Bian
  • Chee Kent Lim
  • Zhuolun Niu
  • Chun Chen
  • Li Zhang
  • Yunlong Zi

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number106015
Journal / PublicationNano Energy
Volume85
Online published24 Mar 2021
Publication statusPublished - Jul 2021

Abstract

Face masks have been an effective and indispensable personal protective measure against particulate matter pollutants and respiratory diseases, especially the novel Coronavirus disease recently. However, disposable surgical face masks suffer from low filtration efficiency for particles ranging from nano- to micro-size, and the limited service life of ~ 4 h. Here, a nano/micro fibrous hybrid air filter mask composing of electrospun nanofibrous network and poly(3,4-ethylenedioxythiophene:poly(styrenesulfonate) coated polypropylene (PP) is proposed. Furthermore, the resultant filter is supplied with tribo-charges by a freestanding sliding triboelectric nanogenerator. Through the enhanced synergistic effect of mechanical interception and electrostatic forces, the hybrid air filter demonstrates high filtration efficiency for particle size of 11.5 nm to 2.5 µm, with a 9.3–34.68% enhancement for particles of 0.3–2.5 µm compared to pristine PP, and 48-h stable filtration efficiency of 94% (0.3–0.4 µm) and 99% (1–2.5 µm) with a low pressure drop of ~110 Pa. In addition, sterilization ability of the tribo-charge enhanced air filter is demonstrated. This work provides a facile and cost-effective approach for state-of-the-art face masks toward high filtration performance of nano- to micro- particles with greatly extended service life.

Research Area(s)

  • Face masks, Nano/micro fibrous hybrid air filter, Particulate matter, PEDOT:PSS, Triboelectric nanogenerator

Citation Format(s)

Tribo-charge enhanced hybrid air filter masks for efficient particulate matter capture with greatly extended service life. / Wang, Lingyun; Bian, Ye; Lim, Chee Kent; Niu, Zhuolun; Lee, Patrick K.H.; Chen, Chun; Zhang, Li; Daoud, Walid A.; Zi, Yunlong.

In: Nano Energy, Vol. 85, 106015, 07.2021.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review