Recent Advances and Perspectives of Core-Shell Nanostructured Materials for Photocatalytic CO 2 Reduction.

Photocatalytic CO 2 conversion into solar fuels is a promising technology to alleviate CO 2 emissions and energy crises. The development of core-shell structured photocatalysts brings many benefits to the photocatalytic CO 2 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 CO 2 reduction. In this review, the recent development of core-shell materials applied for photocatalytic reduction of CO 2 is introduced . First, the basic principle of photocatalytic CO 2 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 CO 2 reduction. Hopefully, this paper can provide a favorable reference for the preparation of efficient photocatalysts for CO 2 reduction.