Degradable nanofiber for eco-friendly air filtration: Progress and perspectives

•The state-of-the-art degradable nanofiber filters for air filtration are presented.•The categories of degradable nanofiber filters are according to the filter composition.•The functionalities of degradable filters are included.•Challenges and future development are demonstrated. Air pollution has p...

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Bibliographic Details
Published in:Separation and purification technology 2023-02, Vol.306, p.122642, Article 122642
Main Authors: Bian, Ye, Zhang, Chencheng, Wang, Hui, Cao, Qi
Format: Article
Language:English
Subjects:
Aerosol particles
Air filtration
Degradability
Nanofiber filter
Sustainable ecosystem
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Summary:•The state-of-the-art degradable nanofiber filters for air filtration are presented.•The categories of degradable nanofiber filters are according to the filter composition.•The functionalities of degradable filters are included.•Challenges and future development are demonstrated. Air pollution has posed a great threat to public health around the globe. Filters can be considered the effective protective equipment to reduce the transmissions of aerosol particles. However, the widespread use of non-degradable filters created a massive disruption in the waste disposal system. Nanofiber filters can achieve high removal efficiency and low pressure drop simultaneously. Benefit from the advantages of degradability and environmental sustainability, degradable nanofiber filters are believed to be efficient filtration media for a sustainable ecosystem. Here, this review focuses on the state-of-the-art degradable nanofiber filters for the removal of particulate matter. According to the filter composition, diverse categories and desired filtration performance are introduced in detail. In addition, various functionalities of the degradable nanofiber filters are classified. Finally, we discuss and suggest several possible directions for future challenges. This review provides a comprehensive insight into environmentally friendly air filters, which can deal with future demands in a more sustainable fashion.
ISSN:1383-5866
1873-3794
DOI:10.1016/j.seppur.2022.122642