“…Compared to traditional separation methods which involve centrifugation, the use of oil‐absorbing porous materials, and magnetic separation approaches, oil/water separation membranes are attractive as they offer the advantages of high selectivity, simple operation, energy efficiency, and small footprint, as well as cause no pollution . In the last two decades, oleophilic membranes have been successfully fabricated, such as carbon‐silica nanofibrous membranes, vertically aligned multiwalled carbon nanotubes (MWNTs) membranes, biodegradable poly(lactic acid) membranes, polystyrene nanofibrous membranes, polytetrafluoroethylene nanofibrous membranes, polyimide‐based nanofibrous membranes, and polyphenylene sulfide microfiber membranes . However, hydrophobic surfaces can be easily fouled owing to their high affinity toward oils, especially high‐viscosity oils, which results in a decrease of their separation efficiency .…”