State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350116, PR China.
State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350116, PR China.
J Colloid Interface Sci. 2023 Jan 15;630(Pt B):352-362. doi: 10.1016/j.jcis.2022.10.026. Epub 2022 Oct 19.
CuO is one of the most promising photocatalysts for visible light driven CO conversion, but its practical application in artificial photosynthesis is challenged to severe photocorrosion. Herein, a CuO/LaTiON composite is successfully synthesized by loading CuO on LaTiON through an ascorbic acid reduction method, which significantly improves the stability and activity of CuO for visible light driven photocatalytic CO conversion, and shows higher photocatalytic performance than most CuO-based photocatalysts reported. The superior photocatalytic performance is attributed to the formation of type-II heterojunction between CuO and LaTiON, which facilitates the separation and transfer of photogenerated electrons and holes. This work provides an effective strategy for the construction of stable and efficient CuO-based photocatalysts.
氧化铜是一种最有前途的可见光驱动 CO 转化光催化剂，但在人工光合作用中，其实际应用受到严重光腐蚀的挑战。在此，通过抗坏血酸还原法将氧化铜负载在 LaTiON 上成功合成了 CuO/LaTiON 复合材料，显著提高了氧化铜在可见光驱动光催化 CO 转化中的稳定性和活性，并表现出比大多数报道的基于 CuO 的光催化剂更高的光催化性能。优越的光催化性能归因于 CuO 和 LaTiON 之间形成了 II 型异质结，这有利于光生电子和空穴的分离和转移。这项工作为构建稳定高效的基于 CuO 的光催化剂提供了有效的策略。
