▎ 摘　　要

NOVELTY - Preparing graphene surface exposed titanium dioxide nanocomposite involves using a layered protonated titanate as a precursor, mixing with graphene oxide to dissolve in alcohol, adding hydrofluoric acid and glucose, and hydrothermally reacting to obtain black precipitate. The black precipitate is added at 50 to 120 degrees C. The vacuum drying is carried out for 12 to 18 hours to obtain graphene surface exposed titanium dioxide nanocomposite. USE - Method for preparing graphene surface exposed titanium dioxide nanocomposite. ADVANTAGE - The method enables to prepare graphene surface exposed titanium dioxide nanocomposite which has high dispersibility and specific surface area and fully develops synergic action to transfer light of the titanium dioxide generated electrons to the graphene surface, inhibits the photogenerated electron-hole pairs to improve the photo-catalytic activity.