▎ 摘　　要

NOVELTY - Method for purifying gaseous phase unsymmetrical dimethylhydrazine involves preparing silver bromide/titanium dioxide/reduced graphene aerogel composite by hydrothermal and immersion methods, and performing photocatalytic degradation of gaseous unsymmetrical dimethylhydrazine using the composite under visible light condition. USE - Method for purifying gaseous phase unsymmetrical dimethylhydrazine. ADVANTAGE - The method is environmentally-friendly, and can effectively utilize the light energy and heat energy of sunlight to degrade gaseous unsymmetrical dimethylhydrazine using aerogel catalyst having large specific surface area, and excellent adsorption property, catalytic performance and photothermal effect. The silver bromide/titanium dioxide/reduced graphene aerogel composite has stable structure, and is prepared by simple preparation process.