▎ 摘　　要

NOVELTY - Preparation of graphene oxide/rare earth complex luminescent material involves preparing 1 mg/ml aqueous solution of graphene oxide, ultrasonically dispersing, preparing 0.1 mol/l phenanthroline/ethanol solution, adding 2-50 ml graphene oxide aqueous solution, magnetically stirring to obtain graphene oxide/phenanthroline mixed solution, centrifuging, washing precipitate with anhydrous ethanol 3-4 times, re-dissolving in 50 ml anhydrous ethanol, adding 2 ml rare earth/ethanol solution, magnetically stirring, dripping 0.1 mol/l 2-thiophene trifluoroacetone/ethanol solution, adjusting pH value to 6-7 using aqueous ammonia solution, stirring at 55 plus minus 2 degrees C for 6 plus minus 1 hour, centrifuging, washing separated product 3-4 times with absolute ethanol and drying obtained product in oven at 45 degrees C. USE - Preparation of graphene oxide/rare earth complex luminescent material for production of molecular probes with fluorescent properties and articles having photothermal sensitivity properties (all claimed). ADVANTAGE - The method enables simple preparation of graphene oxide/rare earth complex luminescent material with improved yield, thermal stability and high-temperature resistance, and prolonged fluorescence lifetime.