A Modified Porous Sponge with Selective Ability for Oil Removal from Oil-Water Mixtures

Figure 5

The water contact angle of sponge before modification (a), the water contact angle of the sponge after immersion in PDMS solution (b), the water contact angle of the sponge after loading with hydrophobic aerogel particles (c), and water (blue) and oil (dichloroethane, red) droplets on the modified sponge (d).

(a)

(b)

(c)

(d)