▎ 摘　　要

NOVELTY - Preparation of flexible bulk amine modified three-dimensional graphene mesoporous material, involves (1) ultrasonically dispersing the graphene oxide aqueous solution, and then adjusting the pH value with the sodium hydroxide aqueous solution to obtain a graphene oxide dispersion, (2) mixing the high amine aqueous solution with the graphene oxide dispersion obtained in step (1), stirring and ultrasonically processing, to obtain a mixture, (3) putting the mixture obtained in step (2) into a mold and placing it in an incubator for heat preservation and leaving still to form a hydrogel, and (4) removing the hydrogel formed in step (3), soaking in deionized water and then freeze-drying. USE - Preparation of flexible bulk amine modified three-dimensional graphene mesoporous material for carbon dioxide adsorption (claimed). ADVANTAGE - The method realizes the regulation of the internal morphology and pore structure of the mesoporous material by controlling the temperature and time of the interaction between the graphene oxide sheet layer and the high amine molecule, and improves the amine loading and adsorption performance of the mesoporous material. The preparation method combines with freeze-drying method to maintain a complete and highly resilient block structure.