▎ 摘　　要

Graphene-TiO2 multilayer films were prepared using plasma enhanced chemical vapor deposition (PECVD) and magnetron sputtering. Inserting graphene into TiO2 induced significant enhancement of the TiO2 Raman signal, which was mainly based on the charge transfer between TiO2 and graphene. The insertion of graphene also greatly affected the surface morphology of the TiO2 films, leading to increased specific surface area. The adsorption capacity and UV photocatalytic activity of the samples were investigated in the process of methyl orange (MO) decomposition and it was found that graphene-TiO2 multilayer films exhibited improved photodegradation efficiency compared to pure TiO2 films.