▎ 摘　　要

The graphene-TiO2 nanocomposite has recently attracted much attention for their synergetic effects. Owing to its unique and remarkable properties of high conductivity, superior electron mobility and extremely high specific surface area, graphene nanosheet has opened up an exciting new field in the science and technology of two-dimensional nanomaterials. At the same time, enormous efforts have been devoted to the research of TiO2 material, which has led to many promising applications in areas of photovoltaics and photocatalysis. This review is focused on the recent significant advances in the synthesis and potential applications of graphene-TiO2 nanocomposite. Various synthetic techniques are detailedly summarized, and the application of photochemical catalysis, energy storage and conversion are systematically summarized. The challenges and opportunities for the future development of graphene-TiO2 nanocomposite are also discussed,