title: Nanofiber Air Filters with High-Temperature Stability for Efficient PM2.5 Removal from the Pollution Sources.
abstract: 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.
authors.forename: Rufan
authors.initials: R
authors.lastname: Zhang
authors.forename: Chong
authors.initials: C
authors.lastname: Liu
authors.forename: Po-Chun
authors.initials: PC
authors.lastname: Hsu
authors.affiliation: Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory , 2575 Sand Hill Road, Menlo Park, California 94025, United States.
authors.forename: Chaofan
authors.initials: C
authors.lastname: Zhang
authors.forename: Nian
authors.initials: N
authors.lastname: Liu
authors.forename: Jinsong
authors.initials: J
authors.lastname: Zhang
authors.forename: Hye Ryoung
authors.initials: HR
authors.lastname: Lee
authors.forename: Yingying
authors.initials: Y
authors.lastname: Lu
authors.forename: Yongcai
authors.initials: Y
authors.lastname: Qiu
authors.forename: Steven
authors.initials: S
authors.lastname: Chu
authors.affiliation: Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory , 2575 Sand Hill Road, Menlo Park, California 94025, United States.
authors.forename: Yi
authors.initials: Y
authors.lastname: Cui
keywords: Air filtration; PM2.5; filter; high temperature; nanofiber; polyimide