Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 11, Issue 12, Pages 11904-11909Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b22415
Keywords
polyimide; ZIF-8; air filtration; PM2.5; high thermal stability
Funding
- National Natural Science Foundation of China [51673009, 51373007]
- National Key Research and Development Program of China [2016YFC0303700]
- Fundamental Research Funds for the Central Universities
- SRF for ROCS, SEM
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Particulate matter (PM) pollution is a serious threat to human health. Zeolitic imidazolate framework-8 (ZIF-8) is a kind of metal-organic framework, and ZIF-8 not only can capture PM2.5 efficiently but also possesses excellent chemical and thermal stability. In this study, ZIF-8-modified soluble polyimide (PI) nanofibrous membranes were prepared via an electrospinning process. As a result, the PI-ZIF membrane shows high PM2.5 filtration efficiency (up to 96.6 +/- 2.9%), superior thermal stability (up to 300 degrees C), good transmittance, excellent mechanical properties, and low pressure drop. The prepared PI-ZIF membrane with excellent comprehensive property shows a promising application in PM2.5 capture, especially in harsh conditions.
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