▎ 摘　　要

NOVELTY - Preparing graphene-based aerogel with ultrafast light-thermal response involves adding graphene oxide sponge and acidified carbon nanotubes into deionized water successively, dispersing, adding lithium sulfate, liquid-phase self-assembly occurs, then quickly freezing, and then freeze-drying. The constant temperature calcination is performed under the protection of inert gas, to obtain the graphene-based aerogel. The mass ratio of graphene oxide sponge, acidified carbon nanotube and lithium sulfate is (20-60):(10-40):(10-30). USE - Method for preparing graphene-based aerogel with ultrafast light-thermal response ADVANTAGE - The method solves the technical problems of long response time and low steady-state temperature of traditional carbon-based photothermal materials, and prepared aerogel has ultra-fast photothermal response, and the advantage of high steady-state temperature makes it expected to realize potential applications in many fields.