▎ 摘　　要

NOVELTY - The utility model claims an oxidant adding device for preparing single-layer graphene oxide, comprising a connecting frame, wherein the inner right side wall of the connecting frame is provided with a first limiting mechanism; the left side of the inner top end of the connecting frame is fixedly installed with a traction rope; the right side of the inner top end of the connecting frame is fixedly installed with a mounting box; the left side of the bottom part of the mounting box is provided with a connecting hole passing through the mounting box; the right side of the bottom end of the inner cavity of the mounting box is fixedly installed with a stepping motor through the base; the power output end of the left side of the stepping motor is sleeved with a rope winding disc; the left end of the rope winding disc is connected with the left end of the inner cavity of the mounting box through a bearing; the traction rope passes through the connecting hole and is connected with the rope winding plate; the traction rope is provided with a pulley; the bottom of the pulley is fixedly installed with a protection box connected with the first limiting mechanism. The oxidant adding device for preparing single-layer graphene oxide drives the rope winding plate to rotate by the stepping motor so as to drive the protective box to slide; it is convenient for the graphene oxide preparation device with different heights.