▎ 摘　　要

NOVELTY - The method involves modifying a graphene oxide by Hummers method to obtain a viscous liquid. The graphene oxide is placed in a vacuum drying box with a temperature of 30-40degrees C for dehumidification treatment for 6-12 hours after the viscous liquid is freeze-dried for 15-20 hours. The reducing drug is placed as thiourea and boric acid in a beaker, deionized water is added and magnetic stirring is performed at room temperature for 15-30 min. The graphene oxide powder is added to the solution and ultrasonically treated for 1-2 hours under the condition of an ice bath to obtain a graphene oxide suspension. The reactor is cooled to room temperature and dehydrated ethanol is used to wash a product again for 3-6 times. The product is placed in a vacuum drying oven for drying. The product is placed in a tube furnace. An inert gas is introduced as a protective gas for calcination. The reduced graphene oxide material doped with boron, nitrogen and sulfur ternary is obtained. USE - Method for preparing of boron, nitrogen and sulphur ternary-doped reduction-oxidation graphene material used for preparation of nanomaterials and temperature sensing. ADVANTAGE - The method has simple steps, experiment operation safety, low preparation cost and excellent material performance. The obtained boron, nitrogen, sulfur ternary-doped reducing graphene oxide material has a larger specific surface area, while enlarging the surface defect degree and porosity, so as to improve the mobility of the carrier. The graphene material after doping is made of temperature-sensitive device. The resistance has obvious change and monitors the temperature accurately in real time. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a SEM image of ternary doped reducing graphene oxide prepared.