By constructing the materials’ surfaces with superhydropho- bicity and superoleophilicity simultaneously, “oil-removal” type materials, such as organic polymer materials, inorganic materials,and other organic/inorganic hybrid materials ,have been developed for oily wastewater separation. However, these “oil-removal” materials membranes are easily fouled, blocked up and even damaged by oil because of their intrinsic oleophilicity, resulting in quick decrease in separation efficiency, flux and membrane life, and even secondary pollution.