Heterogeneous catalytic and selective C–C bond cleavage is considered as the important way for the production of high valuable compounds from large-molecule-weight feedstock. In this article, a sustainable and efficient aerobic oxidative C–C bond cleavage of lignin models is developed with the bismuth-based solid catalyst. Therein, the flower-like Bi₂O₂CO₃ exhibits a high photocatalytic efficiency in the reaction medium combined of n-butanol and tetramethylammonium bromide. For example, the selective oxidative C–C bond cleavage of 1-phenyl-ethane-1, 2-diol has been successfully carried out, where the substrate conversion and the selectivity of benzaldehyde was 95% and 99%, respectively. The study exhibited that the amount of oxygen vacancies plays a significant role on the photocatalytic selective aerobic oxidative cleavage processes. Moreover, the selective aerobic oxidative C–C bond cleavage of different lignin models was investigated, and all the yields of corresponding products are more than 90% with this photocatalytic system. Furthermore, the used flower-like Bi₂O₂CO₃ can be recycled at least 5 times without the obvious decrease of catalytic activity.

多相催化和选择性C-C键断裂被认为是从大分子量原料中生产高价值化合物的重要途径。在本文中，使用铋基固体催化剂开发了一种可持续且高效的木质素有氧氧化 C-C 键裂解模型。其中，花状Bi ₂ O ₂ CO ₃在正丁醇和四甲基溴化铵组合的反应介质中表现出高光催化效率。例如，1-苯基-乙烷-1, 2-二醇的选择性氧化 C-C 键裂解已成功进行，其中底物转化苯甲醛的选择性分别为95%和99%。研究表明，氧空位的数量对光催化选择性好氧氧化裂解过程起着重要作用。此外，研究了不同木质素模型的选择性好氧氧化C-C键裂解，该光催化体系相应产物的产率均超过90%。此外，使用过的花状Bi ₂ O ₂ CO ₃可以循环使用至少5次，而催化活性没有明显下降。