N-Formylation reactions of amines with carbon dioxide (CO₂) are gaining tremendous importance in the chemical fixation of CO₂ to high-value chemicals. However, the methods reported so far either use homogeneous transition metal-based catalysts or higher reaction temperatures. The use of visible light under the mild experimental condition for the N-formylation of amines with CO₂ is a promising approach yet less explored. The present paper describes an efficient methodology for the N-formylation of various aliphatic and aromatic amines with CO₂ using a heterostructured CuO/BiVO₄ catalyst under visible illumination. The incorporation of CuO as a p-type semiconductor enhanced the transfer of electrons in excess at the surface of BiVO₄ semiconductor and afforded the highest 85 % conversion of aniline to formanilide. The heterostructured photocatalyst was found to be robust without any detectable leaching even after the seventh recycling run.

胺与二氧化碳（CO ₂）的N-甲酰化反应在将CO ₂化学固定为高价值化学品中正变得越来越重要。然而，迄今为止报道的方法使用均相过渡金属基催化剂或更高的反应温度。在温和的实验条件下使用可见光将胺与CO ₂进行N-甲酰化是一种很有前途的方法，但尚未得到探索。本文介绍了一种有效的方法，用于在可见光下使用杂结构CuO / BiVO ₄催化剂将各种脂肪族和芳香族胺与CO ₂进行N-甲酰化。CuO的掺入p型半导体增强了BiVO ₄半导体表面多余电子的转移，并提供了最高85％的苯胺转化为甲酰苯胺。发现即使在第七次循环运行之后，杂结构光催化剂也很坚固，没有任何可检测到的浸出。