▎ 摘　　要

NOVELTY - Preparation of aminated graphene, involves mixing graphene oxide powder and dimethylformamide, to form suspension, mixing tetrahydrofuran and N,N'-dicyclohexyl carbodiimide, mixing suspension, N,N'-dicyclohexyl carbodiimide and ethylene diamine and stirring, to obtain N,N'-dicyclohexyl carbodiimide tetrahydrofuran, distilling amino graphene oxide with methanol and water, to remove residual organic substance, dispersing amino graphene in ultra pure water, and freeze drying amino graphene colloid solution, to obtain a single atomic sheet structure aminated graphene. USE - Preparation of aminated graphene used for producing heavy metal ion such as copper ion, cadmium ion, lead ion and zinc ion from wastewater (all claimed). ADVANTAGE - The preparation process is simplified, and the reaction is mild and safe.