▎ 摘　　要

NOVELTY - Preparation of cellulose acetate composite film, involves ultrasonically dispersing graphene oxide and a rare earth complex in a polar organic solvent at room temperature to 80 degrees C for 3-24 hours to obtain a graphene oxide dispersion, heating and stirring at room temperature to 80 degrees C for 3-24 hours to obtain a graphene oxide-rare earth complex composite, adding the composite to cellulose acetate solution, stirring, forming a film, and curing the film at 50-90 degrees C for 6-24 hours. USE - Preparation of cellulose acetate composite film for photovoltaic power generation, domestic illumination, and anti-UV applications. ADVANTAGE - The method provides environmentally-friendly cellulose acetate composite films having excellent adsorption and chelating effects, transparency, UV-excitation performance, mechanical property, and chemical property.