通过溶剂蒸汽处理制备多级静电纺丝纳米纤维作为空气过滤膜实现PM2.5高效捕获

Translated title of the contribution: Hierarchical electrospun nanofibers treated by solvent vapor annealing as air filtration mat for high-efficiency PM2.5 capture

Xinxin Huang, Tifeng Jiao, Qingqing Liu, Lexin Zhang, Jingxin Zhou, Bingbing Li, Qiuming Peng

Research output: Contribution to journalArticlepeer-review

97 Scopus citations

Abstract

Recently, air pollution has become more serious and started to have a dramatic effect on the health of humans in many large cities. Generally, outdoor personal protection, such as commercial masks, cannot effectively prevent the inhalation of many pollutants. Particulate matter (PM) pollutants are a particularly serious threat to human health. Here we introduce a new efficient air filtration mat that can be used for outdoor protection. The new efficient air filter’s nanocomposite materials were successfully fabricated from poly(ε-caprolactone)/polyethylene oxide (PCL/PEO) using an electrospinning technique and solvent vapor annealing (SVA). SVA treatment endows the wrinkled fiber surface and enhances the PM2.5 capture capacity of protective masks. This nanowrinkled air filtration mat can effectively filter PM2.5 with a removal efficiency of 80.01% under seriously polluted conditions (PM2.5 particle concentration above 225 mgm −3 ). Our field test in Qinhuangdao indicated that the air filtration mat had a high PM2.5 removal efficiency under thick haze. Compared to commercial masks, the fabricated SVA-treated PCL/PEO air filter mat demonstrated a simpler and ecofriendly preparation process with excellent degradation characteristics, showing wide potential applications with a high filtration efficiency.

Translated title of the contributionHierarchical electrospun nanofibers treated by solvent vapor annealing as air filtration mat for high-efficiency PM2.5 capture
Original languageChinese (Simplified)
Pages (from-to)423-436
Number of pages14
JournalScience China Materials
Volume62
Issue number3
DOIs
StatePublished - Mar 1 2019

Keywords

  • PM2.5 removal
  • air filtration
  • electrospinning nanofiber mat
  • solvent vapor annealing

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