Nanofiber Air Filters with High-Temperature Stability for Efficient PM2.5 Removal from the Pollution Sources

Here, we developed high-efficiency (>99.5%) polyimide-nanofiber air filters for the high temperature PM2.5 removal. The polyimide nanofibers exhibited high thermal stability, and the PM2.5 removal efficiency was kept unchanged when temperature ranged from 25–370 °C. These filters had high air flu...

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Bibliographic Details
Published in:Nano letters 2016-06, Vol.16 (6), p.3642-3649
Main Authors: Zhang, Rufan, Liu, Chong, Hsu, Po-Chun, Zhang, Chaofan, Liu, Nian, Zhang, Jinsong, Lee, Hye Ryoung, Lu, Yingying, Qiu, Yongcai, Chu, Steven, Cui, Yi
Format: Article
Language:English
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Summary:Here, we developed high-efficiency (>99.5%) polyimide-nanofiber air filters for the high temperature PM2.5 removal. The polyimide nanofibers exhibited high thermal stability, and the PM2.5 removal efficiency was kept unchanged when temperature ranged from 25–370 °C. These filters had high air flux with very low pressure drop. They could continuously work for >120 h for PM2.5 index >300. A field-test showed that they could effectively remove >99.5% PM particles from car exhaust at high temperature.
ISSN:1530-6984
1530-6992
DOI:10.1021/acs.nanolett.6b00771