Filtration

The surface area of 1 gram Aerogel is over 700 m², that’s less than a teaspoon of Aerogel powder having a basketball court of surface are. The pores between the molecules are nano sized, thanks to these amazing features Aerogel has a great filtration capability.
Filters with Aerogel are used by NASA to collect space-dust, and used in the chimneys of coal furnaces to collect nano and micro heavy metal particles.

Space dust is pretty small, Aerogel is used to collect it.
Able to remove fly-ash and other toxic particles from smoke.
Aerogel is used to remove oil from water. Silica aerogel is a strong oleophilic material and the felt can be re-used. It is readily regenerated.