▎ 摘　　要

NOVELTY - Preparing sodium alginate-graphene macrosphere composite material involves sintering sodium alginate and graphene oxide sol by ultrasonic treatment. Divalent metal ions are mixing into obtained sol and then re-crosslinked with glutaraldehyde as a cross-linking agent. Metal ions are removed by dilute acid solution. Finally, cross-linked spheres are dried by freeze-drying to obtain sodium alginate-graphene macrosphere composite material. USE - Method for preparing sodium alginate-graphene macrosphere composite material (claimed). ADVANTAGE - The method enables to prepare sodium alginate-graphene macrosphere composite material has research value in simple manner.