Electrostatic self-assembly method to prepare intercalated graphene oxide composite membrane to improve hydrophilicity and flux

In this study, a graphene oxide layered double hydroxide (GO/Co-Al LDH) composite was prepared by electrostatic self-assembly method. Then GO and Co-Al LDH were assembled on the CA membrane by vacuum filtration to construct a high-efficiency composite membrane . The prepared CA/GO/Co-Al LDH composite membrane has excellent pollutant separation performance and hydrophilicity that the fluxes and the rejection rates for rhodamine b (RhB), methylene blue (MB), Congo red (CR), petroleum ether, n-hexane and mesitylene were excellent, even rejection rates reached more than 90%. The separation performance and hydrophilicity of GO membranes can be improved by changing the content of Co-Al LDH.