| 摘要 |
A method for grading and separating graphene material, comprising the steps of preparing a liquid dispersion of graphene material, wherein the graphene material is graphene, graphene oxide or graphene quantum dots, subjecting the liquid dispersion of graphene material to electrophoresis, and taking a sample at an electrode side every 15 min, to obtain liquid dispersions of graphene materials of different dimensions, wherein a voltage gradient of the electrophoresis is 8 V/cm - 30 V/cm and the electrophoresis time is 2 h - 4 h. The method for grading and separating graphene material performs grading and separation of graphene materials based on electrophoresis technology. Experiments have demonstrated that the method can separate graphene materials of different dimensions, to obtain graphene materials with different properties. |
