@article{Li2020, 
author = {Ziwei Li and Jianan Song and Yuanzheng Long and Chao Jia and Zhenglian Liu and Lei Li and Cheng Yang and Junchen Liu and Sen Lin and Haiyang Wang and Yibo Liu and Minghao Fang and Hui Wu},
title = {Large-scale blow spinning of heat-resistant nanofibrous air filters},
year = {2020},
journal = {Nano Research},
volume = {13},
number = {3},
pages = {861-867},
keywords = {nanofibers, air filters, heat-resistant, blow spinning},
url = {https://www.sciopen.com/article/10.1007/s12274-020-2708-x},
doi = {10.1007/s12274-020-2708-x},
abstract = {Particulate matter (PM) pollution has become a serious problem worldwide and various kinds of nanofibrous filters aiming to solve the problem have been developed. It is urgent to remove PM from high-temperature pollution sources, such as industrial emissions, coal furnaces, and automobile exhaust gases. However, filtration at pollution sources remains challenging because most existing air filters are not resistant to high temperature. Herein, heat-resistant polyimide (PI) nanofibrous air filters are fabricated via a simple and scalable solution blow-spinning method. These air filters show excellent thermal stability at high temperature up to 420 °C. They exhibit a filtration efficiency as high as 99.73% at ambient temperature and over 97% at 300 °C. In addition, a field test shows that the filters remove > 97% of PM from the car exhaust fumes. Hence, the blow-spun PI nanofibrous membranes combined with the facile preparation strategy have great potential in high temperature air filtration fields and other similar applications such as water purification and protein separation.}
}