Photocatalytic Reduction of CO2 over Heterostructure Semiconductors into Value‐Added Chemicals

Photoreduction of CO₂, which utilizes solar energy to convert CO₂ into hydrocarbons, can be an effective means to overcome the increasing energy crisis and mitigate the rising emissions of greenhouse gas. This article covers recent advances in the CO₂ photoreduction over heterostructure‐based photocatalysts. The fundamentals of CO₂ photoreduction and classification of the heterostructured photocatalysts are discussed first, followed by the latest work on the CO₂ photoreduction over heterostructured photocatalysts in terms of the classification of the coupling semiconductors. Finally, a brief summary and a perspective on the challenges in this area are presented.