▎ 摘　　要

CuO/TiO2 nanocrystals grown on graphene (CuO/TiO2-GR) were prepared by a simple hydrothermal method using Cu(CH3COO)(2)center dot H2O and (NH4)(2)TiF6 as precursors and graphene oxide (GO) as templates. The as-prepared composites were characterizated by TEM, XRD, FT-IR to determine composition and phase purity. The photocatalytic activity of the samples was evaluated by photo-degradation of methylene blue (MB) aqueous solution under UV and visible light illumination. This work may provide new insights into preparing other inorganic graphene-based composites.