A novel Fe₃O₄@Ce-UiO-66 composite was prepared and tested in the catalytic ozonation of Acetaminophen (ACT) in aqueous solution under various experimental conditions. The Fe₃O₄@Ce-UiO-66 dramatically increased ACT degradation and mineralization in the catalytic ozonation process (COP); ACT degradation led to 14.1% total organic carbon (TOC) reduction by single ozonation process at pH 7 within 10 min, while in the presence of Fe₃O₄@Ce-UiO-66, 90.2% TOC was removed in the COP. It was shown that ${\mathrm{HO}}^{\bullet }$ was the main species improving ACT degradation and proved the effective catalyzing role of the synthesized MOF on the ozonation process enhancement. The catalyst was efficiently separated magnetically from the treated suspension and was stable, as well as reusable, for multiple cycles. Furthermore, the ACT degradation intermediates were identified utilizing LC-MS, from which the probable transformation pathways were suggested. In overall, this work offers deep insights into the potential of MOFs for accelerating the ozonation-mediated removal process of emerging contaminants in water treatment.

制备了一种新型 Fe ₃ O ₄ @Ce-UiO-66 复合材料，并在各种实验条件下在水溶液中对乙酰氨基酚 (ACT) 的催化臭氧化进行了测试。Fe ₃ O ₄ @Ce-UiO-66 显着增加催化臭氧化过程 (COP) 中的 ACT 降解和矿化；ACT 降解导致在 10 分钟内通过单次臭氧化过程在 pH 7 下减少 14.1% 的总有机碳 (TOC)，而在 Fe ₃ O ₄ @Ce-UiO-66 存在下，COP 中去除了 90.2% 的 TOC。结果表明${何}^{\bullet }$是改善 ACT 降解的主要物质，证明了合成的 MOF 对臭氧化过程增强的有效催化作用。催化剂从处理过的悬浮液中有效地磁性分离，并且在多个循环中稳定且可重复使用。此外，利用 LC-MS 鉴定了 ACT 降解中间体，从中提出了可能的转化途径。总体而言，这项工作为 MOF 在加速水处理中新兴污染物的臭氧介导去除过程中的潜力提供了深刻的见解。