Abstract
Converting the greenhouse gas carbon dioxide into important chemical fuels is promising to alleviate the global warming problem. Photocatalytic CO2 reduction is beneficial for energy storage and environmental protection; however, it suffers from low efficiency. Recently, photothermal catalysis, which merits the advantages of both photocatalysis and traditional thermally driven catalysis, has been extensively studied and proven promising. Herein, the scope of catalyst type within heterogeneous catalysts is discussed, the latest progress of photothermal heterogeneous catalysts designed for CO2 conversion reactions is described, including the reduction of CO2 by H2O, CO2 hydrogenation to CO, CH4, CH3OH, or C2+, CO2 reforming of CH4 (CRM), CO2 cycloaddition reaction, etc. the preparation principles of photothermal catalysts are summarized, the challenges on the design and development of highly efficient photothermal catalysts are pointed out, and the future research directions are prospected.
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