▎ 摘　　要

NOVELTY - Purifying graphene oxide/graphene solution comprises transmitting the graphene oxide/graphene solution into a dialysis cavity, locating the dialysis cavity between the negative electrode and positive electrode, setting a solvent flow passage between the dialysis cavity and negative electrode and positive electrode, guiding the graphene oxide/graphene solution to be purified from the one end of the dialysis cavity via the electric field between the negative electrode and positive electrode, and guiding the remaining purified graphene oxide/graphene solution from the dialysis cavity. USE - The method is useful for purifying graphene oxide/graphene solution. ADVANTAGE - The method is capable of economically purifying graphene oxide/graphene solution with high efficiency. DETAILED DESCRIPTION - Purifying graphene oxide/graphene solution comprises transmitting the graphene oxide/graphene solution into a dialysis cavity (1), locating the dialysis cavity between a negative electrode and a positive electrode, where the middle of the dialysis cavity is the passage of the graphene oxide/graphene solution, setting a solvent flow passage between the dialysis cavity, the negative electrode and the positive electrode, guiding the graphene oxide/graphene solution to be purified from one end of the dialysis cavity via the electric field between the negative electrode and the positive electrode, where the ion and charge particle in the graphene oxide/graphene solution to be purified pass through the wall of the dialysis cavity for moving toward the electrode with opposite charge to be removed via the solvent flow, and guiding the remaining purified graphene oxide/graphene solution from the dialysis cavity. An INDEPENDENT CLAIM is included for a device comprising a dialysis cavity, a negative electrode and a positive electrode, where: the negative electrode and the positive electrode are respectively arranged at two sides of the dialysis cavity; middle of the dialysis cavity is the passage for the graphene oxide/graphene solution; and a solvent flow passage is present between the dialysis cavity, the negative electrode and the positive electrode. DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a device for purifying the graphene oxide/graphene solution. Dialysis cavity (1) Cathode (2) Anode (3) Pump (9) Flowmeter. (10)