Membrane separation technique is applied widely in biology

water treatment and biomimetic due to its high efficiency and energy conservation. However

membrane fouling will lead to significant reduction in separation efficiency and higher cost. Due to the adsorption and deposition of microparticles and macromolecules in the membrane pores

which result in the decrease of the membrane flux and consequently in membrane fouling. The separation efficiency can be improved by regulating membrane structure and modifying surface charge

surface hydrophilicity

surface roughness and surface biomimetic adhesion of the membrane. In this minireview

membrane surface modification methods were summarized

including coating

grafting and surface segregation methods

along with modification through polymerization process.