Electric Field-Driven Air Purification Filter for High Efficiency Removal of PM2.5 and SO2: Local Electric Field Induction and External Electric Field Enhancement

Removal rate and durability are the two most important parameters of an ideal air purification filter to remove inhalable particles toxic gases. Here, based on interaction a local electric field external field, novel coaxial core–shell CuO@NH2-MIL-53(Al) nanowire array was synthesized rigid copper net, which used PM2.5 SO2 simultaneously. The removal rates by with without can reach 98.72% 44.41%, respectively, adsorption capacity 4.87 mol/m2. After repeated filtration cleaning for 10 cycles, pollution efficiency be kept almost stable.