▎ 摘　　要

NOVELTY - The utility model claims a nickel foam cleaning device for preparing graphene quantum dot doped with nitrogen atom, comprising an ultrasonic cleaning machine main body, wherein the ultrasonic cleaning machine main body is provided with a cleaning groove, the cleaning groove is provided with a storage frame, the storage frame cavity is connected with a mounting mechanism through a fixing mechanism, and the fixing mechanism is uniformly arranged on the bottom surface of the inner cavity of the storage frame, the mounting mechanism comprises a mounting vertical plate and a mounting transverse plate, the mounting vertical plate is set in the inner cavity of the storage frame through a fixing mechanism, and symmetrically arranged, the adjacent two mounting vertical plates are connected with a mounting transverse plate through a limiting mechanism, the fixing mechanism comprises a fixing block and a fixing groove, the fixing block is set on the bottom surface of the mounting vertical plate, the fixing groove is uniformly dug on the bottom surface of the inner cavity of the storage frame, so that the mounting transverse plate and the mounting vertical plate are convenient to adjust according to the size of the nickel foam so as to reasonably use the space and avoid the waste of resource.