Novel UiO-66@BiOIO₃-x composites have been successfully designed for the first time. The as-prepared UiO-66@BiOIO₃-x composites exhibit superior photocatalytic activity for the decomposition of rhodamine B (RhB) and tetracycline (TC), compared with the corresponding BiOIO₃. For UiO-66@BiOIO₃-30 composite, approximately 93.2% of RhB and 88.4% of TC were decomposed under a 300 W xenon arc lamp light irradiation. Furthermore, the UiO-66@BiOIO₃-50 composite presents outstanding oxidative removal activity for gaseous Hg⁰. The evident improvement of the photocatalytic property over the UiO-66@BiOIO₃-x composites might be ascribed to the promoted separation efficiency of electron–hole pairs and the larger specific surface area. Finally, the electron-hole migration mechanism over UiO-66@ BiOIO₃-50 composite is put forward in the light of trapping experiments. This research strategy will provide outstanding development in the application of photocatalysis.

新型UiO-66 @ BiOIO ₃ -x复合材料已首次成功设计。所制备的UiO-66 @ BiOIO ₃ -x复合材料与相应的BiOIO ₃相比，对罗丹明B（RhB）和四环素（TC）的分解具有优异的光催化活性。对于UiO-66 @ BiOIO ₃ -30复合材料，在300 W氙弧灯的光照射下，约93.2％的RhB和88.4％的TC分解。此外，UiO-66 @ BiOIO ₃ -50复合材料对气态Hg ⁰具有出色的氧化去除活性。与UiO-66 @ BiOIO ₃相比，光催化性能明显改善-x复合材料可能归因于电子-空穴对的分离效率提高和更大的比表面积。最后，结合俘获实验，提出了UiO-66 @ BiOIO ₃ -50复合材料的电子空穴迁移机理。该研究策略将为光催化的应用提供卓越的发展。