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. 2021 Sep 22;60(44):23756–23762. doi: 10.1002/anie.202108951

Figure 3.

Figure 3

Performance of PMs capture over TFPNMs with different surface polarity. a) Impact on the pressure drop of cTFPNM. The basis weight of cTFPNM and flow rate both exhibit notable impact on the value of pressure drop. The TFPNM with basis weight at 10 g m−2 was applied in all filtration experiments. b) Filtration efficiency comparison between TFPNMs with different terminal groups: 4‐trifluoro‐methoxy‐Ph‐, 4‐fluoro‐Ph‐, 4‐amino‐Ph‐, 4‐cyan‐Ph‐, and 4‐carboxyl‐. c) Durability test between PNM and CTFPNM within 10 h filtration cycles. d) Demonstration of TFPNM blocking PM from the outdoor (left bottle, PM2.5 concentration >1000 μg m−3) to the indoor (right bottle, PM2.5 concentration <1 μg m−3) environment.