Single- And Mixed-Metal-Organic Framework Photocatalysts For Carbon Dioxide Reduction

The photocatalytic reduction of carbon dioxide (CO2) into high value-added chemical fuels is deemed an attractive way for working out the energy dilemma and ameliorating extreme CO2 emission. Metal-organic frameworks (MOFs) are inorganic-organic hybrid materials constructed from metal/metal cluster nodes and organic bridging linkers, which can be considered as desired photocatalysts in the field of CO2 conversion owing to their superior CO2 capture capacity, unique reticular structures and photoelectronic properties. Herein, recent progress in MOF-based photocatalysts for CO2 reduction is discussed, mainly focusing on homometallic- and heterometallic-MOFs for photocatalytic CO2 reduction. Varied strategies for improving the properties of MOF-based photocatalysts and the correlation between the structures and activity are highlighted, which will provide insight for the construction of highly efficient MOF-based photocatalysts for CO2 conversion. The challenges of this field are mentioned, which will facilitate the development of MOFs for efficient CO2 conversion.