Designing visible light photocatalysts with a metal oxide semiconductor as the starting material could expand a new horizon for the conversion and storage of solar energy. Here, the benchmark photocatalyst TiO₂ was used to pursue this goal by anchoring aromatic acids. Extending the aromatic acid was strategically deployed to design TiO₂ complexes with violet light-induced selective aerobic oxidation of sulfide as the probe reaction. With benzoic acid (BA) as the initial molecule, horizontally extending one or two benzene rings furnishes 2-naphthoic acid (2-NA) and 2-anthracene acid (2-AA). Moreover, triethylamine (TEA), an electron transfer mediator, was introduced to maintain the integrity of the anchored aromatic acids. Notably, there was a direct correlation between the π-conjugation of aromatic acid ligand and the selective aerobic oxidation of sulfides. Among the three aromatic acids, 2-AA delivered the best result over TiO₂ due to the most extensive π-conjugated system. Ultimately, violet light-induced selective aerobic oxidation of sulfides into corresponding sulfoxides was conveniently realized by cooperative photocatalysis of 2-AA-TiO₂ with 10 mol% of TEA. This work affords an extending strategy for designing the next-generation ligands for semiconductors to expand visible light-induced selective reactions.

以金属氧化物半导体为起始材料设计可见光光催化剂可以为太阳能的转换和存储开辟新的视野。在这里，基准光催化剂 TiO ₂用于通过锚定芳族酸来实现这一目标。扩展芳族酸被战略性地用于设计具有紫光诱导的硫化物选择性好氧氧化作为探针反应的TiO _{2配合物。}以苯甲酸（BA）为起始分子，水平延伸一个或两个苯环得到2-萘酸（2-NA）和2-蒽酸（2-AA）。此外，引入了电子转移介质三乙胺 (TEA) 以保持锚定芳香酸的完整性。值得注意的是，两者之间存在直接相关性芳香酸配体的π-共轭和硫化物的选择性好氧氧化。在三种芳香酸中，2-AA 比 TiO ₂的效果最好，因为它具有最广泛的π共轭体系。_{最终，通过2-AA-TiO 2}与10 mol% TEA的协同光催化，可以方便地实现紫光诱导的硫化物选择性好氧氧化为相应的亚砜。这项工作为设计下一代半导体配体以扩展可见光诱导的选择性反应提供了扩展策略。