▎ 摘　　要

NOVELTY - The preparation method of fluorine-free titanium dioxide with graphene-like nanostructure involves inhibiting rapid decomposition of titanium source by concentrated hydrochloric acid, then adding to reaction solvent containing ethylene glycol, alcohol, and nonionic surface active agent, and carrying out solvent-thermal reaction. USE - The method is useful for preparation of fluoride-free titanium dioxide with graphene-like nanostructure, which is useful for optical/electrical/chemical catalysis application, and as battery electrode material. ADVANTAGE - The method enables preparation of fluoride-free titanium dioxide nanostructure with large-size area.