▎ 摘　　要

NOVELTY - The utility model claims a vacuum heat treatment device for preparing single-layer graphene oxide, comprising a second transverse plate, the middle position of the top left side of the second transverse plate is fixedly installed with a supporting frame; the left side of the top part of the second transverse plate is fixedly installed with a first limiting mechanism; and the first limiting mechanism is set on the right side of the supporting frame; the top of the first limiting mechanism is hinged with a connecting rod through a hinge shaft; the right side of the top of the second transverse plate is installed with a cylinder through the base; the left output end of the cylinder is connected with the first limiting mechanism; the right side of the top of the second transverse plate is fixedly installed with a supporting rod; and the supporting rod is set on the right side of the cylinder; the top of the supporting rod is hinged with a first transverse plate through a hinge shaft; the bottom left end of the first transverse plate is hinged with the top part of the connecting rod through a hinge shaft. The vacuum heat treatment device for preparing single-layer graphene oxide drives the high temperature resistant rubber plug to move left and right by the motor so as to accelerate the air exchange rate; it is convenient for uniformly distributing heat.