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    Flexible isoporous air filters for high-efficiency particle capture

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    Thumbnail
    Name:
    Flexible_flexible.pdf
    Size:
    2.425Mb
    Format:
    PDF
    Description:
    Accepted manuscript
    Embargo End Date:
    2022-12-01
    Download
    Type
    Article
    Authors
    Sabirova, Ainur
    Wang, Shaofei cc
    Falca, Gheorghe
    Hong, Pei-Ying cc
    Nunes, Suzana Pereira cc
    KAUST Department
    Environmental Science and Engineering Program
    Biological and Environmental Sciences and Engineering (BESE) Division
    Water Desalination and Reuse Research Center (WDRC)
    Date
    2020-12
    Embargo End Date
    2022-12-01
    Submitted Date
    2020-08-21
    Permanent link to this record
    http://hdl.handle.net/10754/666307
    
    Metadata
    Show full item record
    Abstract
    Air pollution with a high concentration level of particulate matter (PM) holds responsibility for an increasing number of fatalities worldwide. Inhalable and harmful airborne PM, generated by anthropogenic and natural sources, can act as carcinogenic agents and can also absorb and transfer with them viruses and bacteria. Stationary and automove filters, masks are part of our routine life. However, traditional fibrous air filters and improved high-efficiency particulate air filters (HEPA) suffer from several inevitable drawbacks, justifying the search for better alternatives. Herein, we present nanofabricated isoporous polymeric membranes with of PM2.5 and PM10 capture efficiency as high as 99.9%. The membranes were transparent and flexible with pore sizes of 0.7, 2 and 5 µm. Those with 2 µm had a density of 4.13 × 106 pores per cm2. Moreover, membranes coated with silver nanoparticles showed excellent biocidal effect against Acinetobacter baylyi bacteria. The membrane can be used in the heating, ventilation and air conditioning systems of buildings and car cabins, and can be incorporated in personal masking.
    Citation
    Sabirova, A., Wang, S., Falca, G., Hong, P.-Y., & Nunes, S. P. (2020). Flexible isoporous air filters for high-efficiency particle capture. Polymer, 123278. doi:10.1016/j.polymer.2020.123278
    Sponsors
    This work was supported by the King Abdullah University of Science and Technology (KAUST).
    Publisher
    Elsevier BV
    Journal
    Polymer
    DOI
    10.1016/j.polymer.2020.123278
    Additional Links
    https://linkinghub.elsevier.com/retrieve/pii/S0032386120311034
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.polymer.2020.123278
    Scopus Count
    Collections
    Articles; Biological and Environmental Sciences and Engineering (BESE) Division; Environmental Science and Engineering Program; Water Desalination and Reuse Research Center (WDRC)

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