In this work, direct Z-scheme Bi₂MoO₆/UiO-66-NH₂ (BUN-x) heterojunctions are successfully synthesized by a facile solvothermal method. The photocatalytic activities of the flower-like BUN-x composites are evaluated using typical fluoroquinolone antibiotics, ofloxacin (OFL) and ciprofloxacin (CIP), under visible light. Almost all composites exhibit better adsorption-photodegradation performance than pure components. The OFL and CIP removal efficiencies using BUN-100 composite are the highest (100.0% and 96.0%, respectively) within 90 min. This good photocatalytic performance is attributed to the Z-scheme charge transfer between Bi₂MoO₆ and UiO-66-NH₂. Moreover, good stability and adaptability of BUN-100 are verified. Additionally, trapping experiments and electron spin resonance analyses are performed to identify the active species generated by BUN-100 (∙OH, h⁺, and ∙O₂^-). Comparisons are made between the active sites and pathways of OFL and CIP based on DFT calculations and intermediates analysis. QSAR predicts that the degradation processes of both OFL and CIP can gradually reduce toxicity.

在这项工作中，通过简便的溶剂热法成功合成了直接 Z 型 Bi ₂ MoO ₆ /UiO-66-NH _{2 (BUN-x) 异质结。}使用典型的氟喹诺酮类抗生素氧氟沙星 (OFL) 和环丙沙星 (CIP) 在可见光下评估花状 BUN-x 复合材料的光催化活性。几乎所有的复合材料都表现出比纯组分更好的吸附-光降解性能。使用 BUN-100 复合材料的 OFL 和 CIP 去除效率在 90 分钟内最高（分别为 100.0% 和 96.0%）。_{这种良好的光催化性能归因于 Bi 2} MoO ₆和 UiO-66-NH ₂之间的 Z 型电荷转移. 并且验证了BUN-100良好的稳定性和适应性。此外，还进行了捕获实验和电子自旋共振分析，以确定 BUN-100 产生的活性物质（∙OH、h ⁺和 ∙O ₂ ^-）。基于 DFT 计算和中间体分析，对 OFL 和 CIP 的活性位点和途径进行了比较。QSAR 预测 OFL 和 CIP 的降解过程都可以逐渐降低毒性。