▎ 摘　　要

NOVELTY - Preparation of strontium titanate/graphene composite nano-catalyst comprises dissolving tetrabutyl titanate in ethylene glycol monomethyl ether, adding aqueous ammonia, precipitating, filtering, mixing 0.5-1.5 g/L graphene oxide solution and ethanolamine at volume ratio of 1:1, adding precipitate at ratio of 1:2, stirring for 6 hours, adding strontium nitrate and potassium hydroxide, mixing for 1 hour, sealing, heating at 160-200 degrees C for 3-12 hours, reacting, cooling, rinsing with deionized water, and drying. USE - Method for preparing strontium titanate/graphene composite nano-catalyst (claimed). ADVANTAGE - The method is simple, easy, non-polluting, and inexpensive. The catalyst has high purity and improved crystallinity.