▎ 摘　　要

Microwave synthesis was taken to synthesis A-SEP@TiO2 which has a steady chemical property. The A-SEP@TiO2 composite materials and GO (with different proportion)were mixed and then pumped on com-mercial PVDF membranes to filter. Finally, the composite membrane A-SEP@TiO2/GO was obtained Under electrostatic self-assembly. Due to the superhydrophilicity and underwater super hydrophobicity of the surface of A-SEP@TiO2/GO membrane, A-SEP@TiO2/GO composite has shown great potential in the field of oil in water. The separation rates of four different emulsions (petroleum ether, toluene, Mesitylene, n -hexane) are all above 90%. With the steady chemical properties, A-SEP@TiO2/GO composite membrane is able to separate oil from water in harsh environment in long-run. After being immersed in 1 mol/L acid and alkali salt solution for one month respectively, all the sample membranes showed a better stabil-ity than commercial PVDF membranes. Also, the oil and water removal flux of A-SEP@TiO2/GO compos-ite membrane only decreased by less than 10%, and that was why the composite membranecan can still maintain good cleaning performance even after ten times' repetition of experiments,. Moreover, the mem-brane could efficiently remove dyes and heavy metal ions. Therefore, it has a great application prospect in complex water environment treatment.(c) 2022 Published by Elsevier B.V.