Photocatalytic technology has the advantages of high efficiency, mild reaction conditions, low cost, and minimal secondary contamination in antibiotic degradation. Bismuth oxyhalides(BiOX) has garnered considerable attention and application as a photocatalyst, due to its suitable band gap and light capture capability. In this study, we successfully synthesized the BiOICl (BCI) material through hydrothermal treatment. Furthermore, Molybdenum (Mo) atoms were diffused into the composite to form Mo-doped Mo@BiOICl. Various techniques were employed to characterize the structures, chemical compositions, and morphologies of the obtained materials.The photocatalytic performance of the obtained materials was investigated, revealing that MBCI-3 exhibited superior performance in the photocatalytic degradation of contaminants. Over a span of 20 min, 100% of rhodamine B and 86.0% of tetracycline were successfully removed from water. The enhancement in photocatalytic performance can be attributed to the alteration in the band gap of the BCI complex, leading to improved light absorption, while the incorporation of Mo atoms expedites electron transfer. Finally, the role of h and O• radicals in photocatalytic degradation was verified through radical trapping experiments.

中文翻译：

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Mo修饰BiOI0.5Cl0.5复合材料去除抗生素的制备

光催化技术具有效率高、反应条件温和、成本低、抗生素降解二次污染少等优点。卤氧化铋（BiOX）由于其合适的带隙和光捕获能力而作为光催化剂获得了广泛的关注和应用。在本研究中，我们通过水热处理成功合成了BiOICl（BCI）材料。此外，钼（Mo）原子扩散到复合材料中形成Mo掺杂的Mo@BiOICl。采用多种技术对所得材料的结构、化学组成和形貌进行表征。对所得材料的光催化性能进行了研究，结果表明MBCI-3在光催化降解污染物方面表现出优异的性能。在 20 分钟内，成功地从水中去除了 100% 的罗丹明 B 和 86.0% 的四环素。光催化性能的增强可归因于BCI配合物带隙的改变，从而改善光吸收，而Mo原子的掺入则加速了电子转移。最后，通过自由基捕获实验验证了h自由基和O•自由基在光催化降解中的作用。