▎ 摘　　要

NOVELTY - Graphene preparation device (25) comprises a stator, a rotor (14), a rotating shaft (4), a catalyst injection device and a strong acid injection device. The stator is a sealed cylinder. The one side of the stator is provided with a graphene oxide output tube (1), and the other side is provided with a graphite turbid liquid input pipe (15) and connected with a strong acid injection device (20). Ultrasonic transducers (11) are distributed on the inner wall of the stator. UV emitters (7) are provided on both sides of the stator. The rotating shaft is installed in the stator. A rotor is in the stator and installed on the rotating shaft in the upper part. Blades are distributed on the rotor with cavities in the blades, and cavitation through holes are distributed on both sides of the cavities on the blades. USE - Graphene preparation device. ADVANTAGE - The device integrates with cavitation, oxidation, and photocatalysis, synergistically oxidizes and disperses graphite, and is economical. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the graphene preparation device. Graphene oxide output tube (1) Rotating shaft (4) UV emitters (7) Ultrasonic transducers (11) Rotor (14) Graphite turbid liquid input pipe (15) Strong acid injection device (20) Graphene preparation device (25)