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High-performance particulate matter including nanoscale particle removal by a self-powered air filter

Author

Listed:
  • Guo-Hao Zhang

    (Sichuan University)

  • Qiu-Hong Zhu

    (Sichuan University)

  • Lei Zhang

    (Sichuan University)

  • Fang Yong

    (Sichuan University)

  • Zhang Zhang

    (Sichuan University)

  • Shuang-Long Wang

    (Sichuan University)

  • You Wang

    (Sichuan University)

  • Ling He

    (Sichuan University)

  • Guo-Hong Tao

    (Sichuan University)

Abstract

Particulate matter (PM) pollutants, including nanoscale particles (NPs), have been considered serious threats to public health. In this work, a self-powered air filter that can be used in high-efficiency removal of PM, including NPs, is presented. An ionic liquid–polymer (ILP) composite is irregularly distributed onto a sponge network to form an ILP@MF filter. Enabled by its unique electrochemical properties, the ILP@MF filter can remove PM2.5 and PM10 with high efficiencies of 99.59% and 99.75%, respectively, after applying a low voltage. More importantly, the charged ILP@MF filter realizes a superior removal for NPs with an efficiency of 93.77%. A micro-button lithium cell or silicon-based solar panel is employed as a power supply platform to fabricate a portable and self-powered face mask, which exhibits excellent efficacy in particulate removal compared to commercial masks. This work shows a great promise for high-performance purification devices and facile mask production to remove particulate pollutants.

Suggested Citation

  • Guo-Hao Zhang & Qiu-Hong Zhu & Lei Zhang & Fang Yong & Zhang Zhang & Shuang-Long Wang & You Wang & Ling He & Guo-Hong Tao, 2020. "High-performance particulate matter including nanoscale particle removal by a self-powered air filter," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-15502-7
    DOI: 10.1038/s41467-020-15502-7
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