Recent Advances and Perspectives of Core‐Shell Nanostructured Materials for Photocatalytic CO2 Reduction

Photocatalytic CO2 conversion into solar fuels is a promising technology to alleviate CO2 emissions and energy crises. The development of core‐shell structured photocatalysts brings many benefits to the photocatalytic CO2 reduction process, such as high conversion efficiency, sufficient product selectivity, and endurable catalyst stability. Core‐shell nanostructured materials with excellent physicochemical features take an irreplaceable position in the field of photocatalytic CO2 reduction. In this review, the recent development of core‐shell materials applied for photocatalytic reduction of CO2 is introduced. First, the basic principle of photocatalytic CO2 reduction is introduced. In detail, the classification and synthesis techniques of core‐shell catalysts are discussed. Furthermore, it is also emphasized that the excellent properties of the core‐shell structure can greatly improve the activity, selectivity, and stability in the process of photocatalytic CO2 reduction. Hopefully, this paper can provide a favorable reference for the preparation of efficient photocatalysts for CO2 reduction. This review summarizes the recent development of core‐shell materials applied for photocatalytic reduction of CO2, including its catalytic function, adsorption performance, and light responsiveness. The advantages of these materials for photocatalytic CO2 reduction are highlighted.