Efficient and multi-functional integrated iodine adsorption air filter for iodine aerosol purification

Polyvinylidene fluoride/graphene oxide/polyimide composite high-efficiency PM2.5 filtration nanofiber membranes

“…There are different types of PM 2.5 movement, including inertial impact, gravitational settling, and Brownian motion. 37,38 When unpuried air passes through the PVDF nanobers, larger particles are physically intercepted and adsorbed on the ber nodes through impact and inertial collision of the bers. The smaller particles aggregate on the nanobers due to dipole moment interactions between the polar surface functional groups on the PVDF nanobers and the PM 2.5 particles.…”