▎ 摘　　要

NOVELTY - Preparing graphene/zirconium-BDC-metal-organic framework (MOF)/perovskite quantum dot high thermal conductivity composite material comprises (1) dispersing cesium lead (III) chloride quantum dots, cesium lead iodide quantum dots or cesium lead tribromide quantum dots in toluene, (2) taking zirconium oxychloride octahydrate and fumaric acid, dissolving in dimethylformamide and formic acid, washing with ethanol many times, and vacuum drying, (3) placing natural graphite and sodium nitrate into large beaker, slowly adding concentrated sulfuric acid, ultrasonically dispersing and placing in dry low-temperature environment, (4) taking zirconium oxychloride octahydrate and dissolving in graphene oxide suspension, washing many times with ethanol, and vacuum-drying, and (5) compounding of graphene/zirconium-BDC MOF/perovskite quantum dots, dispersing the perovskite quantum dots in toluene in vials, uniformly coating the toluene dispersion of perovskite quantum dots, and naturally drying. USE - The method is useful for preparing graphene/zirconium-BDC-metal-organic framework (MOF)/perovskite quantum dot high thermal conductivity composite material. ADVANTAGE - The composite material: has high thermal conductivity, excellent electrical conductivity, under the condition of ultraviolet light; can serve longer in the environment of strong ultraviolet light; and is suitable for use as heat conduction or cooling element under strong ultraviolet light conditions and suitable for electronic components and aerospace and other fields. DETAILED DESCRIPTION - Preparing graphene/zirconium-BDC-metal-organic framework (MOF)/perovskite quantum dot high thermal conductivity composite material comprises (1) dispersing the cesium lead(III) chloride quantum dots, cesium lead iodide quantum dots or cesium lead tribromide quantum dots in toluene to obtain perovskite quantum dots for storage, where the perovskite quantum dots are cesium lead(III) chloride quantum dots, cesium lead iodide quantum dots or cesium lead tribromide quantum dots, (2) taking zirconium oxychloride octahydrate and fumaric acid, dissolving in dimethylformamide and formic acid at certain temperature, magnetically stirring until it is completely dissolved, transferring to reaction kettle, reacting at constant temperature for period of time at certain temperature, cooling to room temperature, washing the obtained crystals many times with dimethylformamide, washing wash with ethanol many times, and vacuum drying at a certain temperature to obtain zirconium-BDC MOF, (3) placing natural graphite and sodium nitrate into large beaker, slowly adding concentrated sulfuric acid, obtaining black solution, keeping stirring for period of time in ice bath, slowly adding certain amount of potassium permanganate, obtaining dark green solution, continuously stirring in ice bath for period of time, slowly adding distilled water to obtain brown solution, diluting the tan solution with warm water, removing residual potassium permanganate with hydrogen peroxide to obtain bright yellow solution, filtering the solution, washing the resultant with dilute hydrochloric acid and distilled water until the solution is neutral, obtaining graphite oxide by drying and grinding, centrifuging and washing the product with hydrochloric acid and distilled water until it is nearly neutral, dialyzing the product to neutrality, ultrasonically dispersing and placing in dry low-temperature environment, (4) taking zirconium oxychloride octahydrate and dissolving in graphene oxide suspension, taking hexabromocyclododecane, dissolving in dimethylformamide and formic acid, magnetically stirring until it is completely dissolved, mixing the two solutions and pouring into the reactor at certain temperature to react at constant temperature for period of time, cooling the reactor to room temperature after the reaction is completed, washing the resulting product many times through dimethylformamide, washing many times with ethanol, and vacuum-drying, where the gained material is graphene/zirconium-BDC MOF composite material, and (5) compounding of graphene/zirconium-BDC MOF/perovskite quantum dots, dispersing the perovskite quantum dots in toluene in vials, uniformly coating the toluene dispersion of perovskite quantum dots on the surface of the graphene/zirconium-BDC MOF composite material, and naturally drying, where the resulting product is composite material of graphene/zirconium -BDC MOF/perovskite quantum dots. An INDEPENDENT CLAIM is also included for graphene/zirconium-BDC-metal-organic framework (MOF)/perovskite quantum dot high thermal conductivity composite material prepared by above-mentioned preparation method.