▎ 摘　　要

NOVELTY - A composite aerogel material comprises graphene aerogel carrier, and silver nanoparticles modified carbon spheres to the three-dimensional structure of the active ingredient. The size of silver nanoparticle is 10-20 nm distributed in the carbon ball surface. Silver nanoparticles are dispersed in the modified carbon sphere between graphene sheets. The silver is loaded at 6-7 wt.%. USE - Composite aerogel material used for adsorption of organic pollutants and heavy metal ions in water. ADVANTAGE - The composite aerogel material has good absorption effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation of composite aerogel material comprising: (A) ultrasound dispersing in distilled water to obtain 2-3 mg/ml graphene oxide precursor dispersion; (B) taking 0.2-0.4 mol/l glucose solution, placing in an autoclave at 170-180 degrees C for 4-6 hours, carrying out hydrothermal treatment and cooling to room temperature with ethanol, centrifuging and washing repeatedly with distilled water to remove excess glucose, and then drying in vacuum to obtain a carbon sphere; carbon ball ultrasonic dispersion for 20 minutes at 15000 revolutions/minute in distilled water to form carbon ball dispersion; (C) adding carbon spheres dispersion to a solution of silver nitrate to obtain a silver ion mixed solution; after shaking and stirring at room temperature for 10-12 hours to obtain a homogeneous mixture; centrifuging the mixture, then adding ethanol, washing repeatedly with distilled water to remove excess silver ions, and then ultrasonic dispersion in distilled water to obtain silver nanoparticles modified carbon spheres dispersion; and (D) adding silver nanoparticles modified carbon ball, further adding cysteamine, modifying obtained graphene oxide precursor dispersion with silver nanoparticles dispersion of carbon spheres, ultrasonic degradation for 1 hour, preparing aerogel material acid, mixing, where the mixture is placed at 70-90 degrees C oil bath for 8-10 hours, then washing with ultrapure water to remove excess cysteine, and freeze-drying to obtain the composite aerogel material.