Figure 4.
Optical microscopy images of oil-in-water emulsion demulsification and separation. (a–c) Showing oil demulsification and condensation process of AlCl3. (d,e) A scheme of synchronous demulsification and separation process. (f–h) Optical microscopy of separation process with water permeating through S-USM, leaving oil droplets above the mesh. (k) Optical imagines of milky emulsion on S-USM after separation.