Multi-hierarchical nanofibre membranes composited with ordered structure/nano-spiderwebs for air filtration

To address environmental pollution and emerging infectious diseases, highly efficient filters capable of simultaneously removing air pollutants and pathogenic microorganisms must be developed. Traditional fibrous filter materials are incapable of effectively capturing fine particles owing to their wide fibres and large pores. In this study, we used electrospinning to combine nano-spiderwebs with an ordered nanofibre membrane and construct an air-filtration material with a multi-stage pore structure that filters efficiently to deliver breathable air. The prepared composite nanofibre membrane exhibited a filtration efficiency of > 98% for particulate matter 95%), highlighting its considerable potential for use in air-filtration applications.