A copper(II) complex grafted to nitrogen-doped graphene (GrN700–CuC) was synthesized and then demonstrated as an efficient photocatalyst for CO2 reduction into methanol under visible light irradiation using a DMF/water mixture. The chemical and microstructural features of GrN700–CuC nanosheets were studied by FTIR, XPS, XRD and HRTEM analyses. Owing to its truly heterogeneous nature, GrN700–CuC could be easily recovered after the photocatalytic reaction and showed efficient recyclability for subsequent runs.
