Fig. 2: PM filtration mechanisms on a nanofiber membrane. | Communications Materials

Fig. 2: PM filtration mechanisms on a nanofiber membrane.

From: Crafting high-temperature stable and hydrophobic nanofiber membranes for particulate matter filtration

Fig. 2

The trapping of PMs on a nanofiber membrane is governed by several different mechanisms (i.e., interception, inertial impaction, Brownian diffusion, and electrostatic effect). PM and nanofiber are illustrated in red and gray colors, respectively. Filtration efficiency depends on the PM size for the different trapping mechanisms.

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