Cocatalysts loading is an effective strategy to boost photocatalytic CO₂ reduction reaction (CO₂RR). The cocatalysts based on non-noble metal compounds have an obvious advantage in balancing the cost and efficiency in the scale-up application. The anions in non-noble metal cocatalysts have a distinctive influence on the photocatalytic CO₂RR. This review focuses on the impact of different anions in non-noble metal compounds, including oxide-, sulphide-, phosphide-, carbide- and nitride-based cocatalysts. These materials have been demonstrated to improve the charge carrier separation, light harvesting, CO₂ adsorption ability and act as active sites for reduction reactions. The recent progresses of non-noble metal-based cocatalysts for photocatalytic CO₂RR, together with possible challenges and opportunities have been discussed.

助催化剂负载是促进光催化 CO ₂还原反应 (CO ₂ RR)的有效策略。基于非贵金属化合物的助催化剂在规模化应用中平衡成本和效率方面具有明显优势。非贵金属助催化剂中的阴离子对光催化 CO ₂ RR具有独特的影响。本综述重点关注非贵金属化合物中不同阴离子的影响，包括基于氧化物、硫化物、磷化物、碳化物和氮化物的助催化剂。这些材料已被证明可以改善电荷载流子分离、光收集、CO ₂吸附能力，并作为还原反应的活性位点。讨论了用于光催化 CO ₂ RR的非贵金属基助催化剂的最新进展，以及可能的挑战和机遇。