Multiple hydrogen bonding self-assembly tailored electrospun polyimide hybrid filter for efficient air pollution control

High-performance multifunctional electrospun fibrous air filter for personal protection: A review

“…15 (d). The enhanced electrostatic effect of ZIF–8 also improves the filtration performance (filtration efficiency for PM 0.3 was 99.28 % and pressure drop was 49.21 Pa) [158] . However, the preparation of MOF is complex and it is easy to agglomerate; more importantly, the introduction of MOF will inevitably bring nanotoxicity, which will also limit its further use for personal protection.…”

“…POSS can enhance the binding energy of the interface, so that ZIF–8 was more firmly attached to the smooth fiber. The removal rate for PM 0.3 was up to 99.28 %, the pressure drop was 49.21 Pa, and the QF was 0.1002 Pa −1 [158] .…”

“…(e) Schematic illustration for fabrication of the T–PVA/SA/HAP nanofibers [157] . (f) Micromorphology of PI–POSS@ZIF fibers with nanoprotrusions [158] . …”

“…Forming a large number of nanoprotrusions on fibers is an effective way to increase the surface roughness of fibers, which can be fabricated by particle doping through hydrogen bond or coordination bond, such as MOFs, GO, zinc oxide (ZnO), SiO 2 , protein particles and so on [40] , [139] , [158] , [159] . It is desirable to construct uniform and widely distributed nanoprotrusion [14] .…”

Electrospun Nanofiber Membranes for Air Filtration: A Review

“…Modern filter materials are also relatively mature in terms of performance optimization, such as fiber filter membranes used in high-temperature conditions. Xie et al [ 56 ] used electrospinning technology to prepare a PI-POSS@ZIF hybrid filter that achieved excellent filtration performance, with a high PM0.3 filter efficiency of 99.28% and an air passage resistance of 49.21 Pa at high-temperature conditions of 280 °C. A certain amount of ZIF was added during the preparation process for hybridization to improve the high-temperature resistance of the material.…”