▎ 摘　　要

NOVELTY - Graphene-based conductive-based algal flocculent foam comprises algal flocculation foam and graphene, where algae flocculation foam material consists of algae flocculent material, gelling agent and foaming agent, algae flocculent material is prepared by algal flocculating anionic polymer and cationic surfactant or cationic polymer and anionic surfactant; gelling agent is calcium carbonate and foaming agent is hydroxypropyl methylcellulose. USE - Used as graphene-based conductive-based algal flocculent foam. ADVANTAGE - The foam has simple preparation method, algal biomass concentration, low water content, low-cost and stable performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing graphene-based conductive-based algal flocculent foam comprising (i) placing algae biomass into anionic polymer polyacrylic acid and cationic surfactant cetylpyridinium chloride or cationic polymer polyethyleneimine and anionic surfactant sodium dodecyl sulfate, stirring at a speed of 200-250 revolution/minute for 15-20 minutes to obtain flocculent particle water content is less than 70% and filtering through coarse filter to obtain algae coagulation floc, (ii) adding graphene oxide suspension into gelling agent and foaming agent, stirring at high-speed to mix and ultrasonicating for 10-20 minutes to obtain graphene oxide solution containing auxiliary agent, and (iii) immersing alga flocculent prepared in step (i) into graphene oxide solution containing auxiliary agent prepared in step (ii), removing, transferring to hydrazine reducing agent, washing and drying to obtain graphene-based conductive-based algal flocculent foam.