▎ 摘　　要

NOVELTY - Device comprises acidifying reactor which is used for acid treatment. The graphite column acidification reactor is set with a stirrer. The electrochemical stripping reactor is used for stripping after acidification of the graphite column. The stripping reactor is set with multiple electrolytic unit and a heater used for heating the electrolysis unit. The electrolysis unit comprises an electrolytic bath and electric source. The electrolysis bath graphite column is set in blind hole opened along the axis as the anode, center of the graphite column, blind holes are inserted with platinum as cathode. The platinum top and graphite column bottom are connected with the electric source. The electrolysis bath is added electrolyte. The electrolyte is ammonium sulfate solution, ammonium sulfate aqueous solution or ammonium nitrate aqueous solution where a top part of the stripping reactor is set with an exhaust port. USE - The device is useful for preparing functional graphene (claimed). DETAILED DESCRIPTION - Device comprises acidifying reactor which is used for acid treatment. The graphite column acidification reactor is set with a stirrer. The electrochemical stripping reactor is used for stripping after acidification of the graphite column. The stripping reactor is set with multiple electrolytic unit and a heater used for heating the electrolysis unit. The electrolysis unit comprises an electrolytic bath and electric source. The electrolysis bath graphite column is set in blind hole opened along the axis as the anode, center of the graphite column, blind holes are inserted with platinum as cathode. The platinum top and graphite column bottom are connected with the electric source. The electrolysis bath is added electrolyte. The electrolyte is ammonium sulfate solution, ammonium sulfate aqueous solution or ammonium nitrate aqueous solution where a top part of the stripping reactor is set with an exhaust port. The gas collector electrochemical stripping reactor is connected with the exhaust port of the gas collector is set with a gas filter for separating oxygen and hydrogen; a centrifugal separator, which is connected with the discharging port of the electrochemical stripping reactor and used for separating the graphene powder product in the electrolyte. An INDEPENDENT CLAIM is also included for preparing functionalized graphene comprising (S1) taking the graphite column and nitric acid solution into the acidification reactor, a stirrer oscillating reaction, acidified graphite column, (S2) opening the acidized graphite alkene center blind hole, and then placing the graphite column in the electrolytic bath as the anode, inserting the platinum wire in the blind hole as anode, where the graphite post is connected with power source, where the platinum wire top end is connected with the power supply, adding electrolyte in the electrolytic cell, where the electrolyte is ammonium sulfate solution, ammonium sulfate aqueous solution or ammonium nitrate aqueous solution, using the heater for controlling the electrolysis temperature, under the temperature condition is not more than 50 degrees C, using constant voltage or constant current mode for electrolyze, electrolyzing the produced gas enters the gas collector and separating the hydrogen and oxygen, and (S3) after finishing electrolysis, using high speed centrifugal separating the solid powder in the electrolyte and drying. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the device.