▎ 摘　　要

NOVELTY - Efficient preparation of silver nanoparticle three-dimensional graphene composite structure includes adding oxidized graphene aqueous solution in glucose and stirring to obtain mixed solution; dissolving silver nitrate in deionized water, stirring, adding ammonia water until disappearance of white precipitate to obtain reaction solution; adding reaction solution to mixed solution, stirring, placing at room temperature; putting into reaction kettle, heating, insulating, heating, insulating, cooling, and taking out silver nanoparticle three-dimensional graphene hydrogel composite structure. USE - Method for efficient preparation of silver nanoparticle three-dimensional graphene composite structure (claimed) used for catalysis, sensing, and super capacitor. ADVANTAGE - The three-dimensional graphene composite structure is light weight and environment-friendly, and has electric conduction, high intensity, antibacterial effect, and lipophilic and hydrophobic properties. DETAILED DESCRIPTION - Efficient preparation of silver nanoparticle three-dimensional graphene composite structure comprises adding oxidized graphene aqueous solution in glucose at weight ratio of 1:14-1:16 and stirring for 0.5-1 hour to obtain mixed solution; dissolving 0.1-0.2 wt.% silver nitrate in deionized water, stirring for 10-20 minutes, and adding 0.1-0.8 mol/L ammonia water until disappearance of white precipitate to obtain reaction solution; adding reaction solution to mixed solution, stirring for 5-15 minutes, and placing at room temperature; putting into reaction kettle, heating to 80-100 degrees C, insulating for 30-50 minutes, heating to 150-180 degrees C, insulating for 12-24 hours, cooling, taking out silver nanoparticle three-dimensional graphene hydrogel composite structure, and repeatedly washing with 3-9 times deionized water; and freezing at - 45 to - 55 degrees C for 1-5 hours, taking out, putting into freezing-drying box, and vacuumizing for 18-26 hours.