▎ 摘　　要

NOVELTY - The utility model belongs to the technical field of film preparation, preparing graphene oxide film claims a spray device, comprising a heating platform, a small air pump, an atomizer and a temperature controller; said heating platform outer side cover with opening on the left side of the protective cover. the heating platform is set with bracket, bracket is square by bolt is fixed with the heat-conducting metal sheet, heat conducting metal sheet and the stent is clamped between heating ceramic sheet; the atomizer is provided with port, pipe sleeved at the interface, of the catheter opening and extends above the heating platform protection cover. The designed structure of the utility model is simply, through small air pump and atomizer atomizing the oxide graphene solution, atomized liquid droplets adhering to the surface of the substrate on the heating platform, the heating platform heating drying substrate surface droplets, the droplets after evaporating to obtain continuous graphene oxide film on the surface of the base body for subsequent high temperature reduction preparation single layer or few layer graphene film.