Fig. 8
From: Fabrication of silica/PVA-co-PE nanofiber membrane for oil/water separation
Photographs of oil droplets underwater. Chloroform, n-hexane (red); water (blue). a Chloroform (bottom side, heavier than water), b n-hexane (top side, lighter than water) in water on the surface of silica/PM. c–e The images of chloroform oil droplet nonadhesive on the surface of the silica/PM. f, g The photographs of the measurement of the oil/water separation performance of silica/PM, f before separation and g after separation, respectively