Key Laboratory of Bioinspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry , Beihang University , Beijing 100191 , P. R. China.
Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology , China University of Geosciences , Beijing 100083 , P. R. China.
ACS Appl Mater Interfaces. 2019 Mar 27;11(12):11904-11909. doi: 10.1021/acsami.8b22415. Epub 2019 Mar 13.
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 PM 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 PM filtration efficiency (up to 96.6 ± 2.9%), superior thermal stability (up to 300 °C), good transmittance, excellent mechanical properties, and low pressure drop. The prepared PI-ZIF membrane with excellent comprehensive property shows a promising application in PM capture, especially in harsh conditions.
颗粒物 (PM) 污染对人类健康构成严重威胁。沸石咪唑酯骨架-8 (ZIF-8) 是一种金属有机骨架，它不仅可以高效捕集 PM，而且还具有优异的化学和热稳定性。在本研究中，通过静电纺丝工艺制备了 ZIF-8 修饰的可溶性聚酰亚胺 (PI) 纳米纤维膜。结果表明，PI-ZIF 膜具有高的 PM 过滤效率（高达 96.6±2.9%）、优异的热稳定性（高达 300°C）、良好的透光率、优异的机械性能和低的压降。所制备的具有优异综合性能的 PI-ZIF 膜在 PM 捕集，特别是在恶劣条件下具有广阔的应用前景。
