▎ 摘　　要

Herein, a one-step solvothermal method that shows incorporation of the graphene quantum dots (GQDs) on Fe-based metal organic frameworks (MOFs) [MIL-101(Fe)] to form GQD/MIL-101(Fe) (G/M101) composites is reported. MIL-101(Fe) with the sensitization of GQDs could significantly improve the photocatalytic reduction efficiency of CO(2)to generate CO. The prepared composites exhibit excellent optical properties and the photocatalytic activity of G/M101 composites is relevant to GQDs ratio. The CO production rate over G/M101-5% (224.71 mu mol h(-1)g(-1)) is 5 times higher than that of MIL-101(Fe) (46.20 mu mol h(-1)g(-1)). The promising photocatalytic activity of G/M101-5% strongly depends on the beneficial separation and transfer of photoinduced carriers via a charge migration between GQDs and MIL-101(Fe). The microstructures and interfacial structures of the G/M101-5% composite demonstrate that GQDs are closely loaded on the surface of MIL-101 (Fe), and thus favors to the photoreduction according to their sp(2)bonding. This work may figure a new way for the synthesis of photocatalysts for the application on carbon stabilization.