▎ 摘　　要

NOVELTY - Preparing metal organic framework-carbon composite material comprises (a) adding single-walled carbon nanotubes/reduced graphene oxide and methyl imidazole in methanol, and then stirring the mixture ultrasonically for 30-40 minutes to prepare uniform solution, (b) dispersing zinc nitrate hexahydrate in methanol, stirring for 10-15 minutes, and mixing to obtain zinc nitrate solution, where the molar ratio of zinc to hydroxide provided by single-walled carbon nanotubes/reduced graphene oxide is 1:1-1:6, and the mass concentration ratio of zinc and methyl imidazole is 1:2-1:6, (c) adding the above solution to the mixed solution prepared in the step (a), then adding the mixture into stainless steel autoclave lined with polytetrafluoroethylene, and maintaining at 90 degrees C for 6-7 hours, and (d) filtering the mixed solution, and vacuum drying at 90 degrees C for 2-3 hours. USE - The composite material is useful for removing phosphate in sewage.