▎ 摘　　要

NOVELTY - Tannic acid-modified graphene/gelatin porous composite material, obtained by (i) mixing tannic acid, graphene oxide and de-ionized water, reacting at 80-90 degrees C and separating the solid and liquid to obtain tannic acid-modified graphene; (ii) mixing tannic acid-modified graphene, gelatin and de-ionized water to obtain tannic acid-modified graphene/gelatin mixture; (iii) dropping the tannic acid-modified graphene/gelatin mixture into ice water to obtain tannic acid-modified graphene/gelatin microspheres; (iv) crosslinking the tannic acid-modified graphene/gelatin microspheres with crosslinking agent to obtain a tannic acid-modified graphene/gelatin cross-linked gel microsphere and freez-drying, is claimed. USE - The material is useful as dye adsorbing material, preferably organic dye adsorbing material (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing tannic acid-modified graphene/gelatin porous composite material, comprising the steps as mentioned above.