Compared with the transition metal induced homogeneous catalytic system, the heterogeneous catalytic system based on transition metal-doped metal organic frameworks (MOFs) were stable for the efficient utilization of transition metal and avoiding the metal leaching. The aim of this work is to synthesize Co-doped MIL-53(Al) by one-step solvent thermal method and use it to activate peroxymonosulfate (PMS) to remove tetracycline (TC) in water. The successful synthesis of Co-MIL-53(Al) samples was demonstrated by XDR, SEM and FTIR characterizations. The 25% Co-MIL-53(Al)/PMS system showed the optimal TC removal effect compared to the PMS alone and MIL-53(Al)/PMS system. The catalytic performances of Co-MIL-53(Al)/PMS system in conditions of different pH, co-existing substances and water bodies were investigated. Quenching experiment and electron paramagnetic resonance (EPR) showed that the degradation mechanism by Co-MIL-53(Al) activation PMS was mainly attributed to sulfate radical (SO₄^•-) and singlet oxygen (¹O₂) non-radical. The degradation intermediates of TC were also identified and the possible degradation pathways were proposed. Co-MIL-53(Al) showed good activity after four cycles. These findings demonstrated that Co-MIL-53(Al) can be a promising heterogeneous catalyst for activating PMS to degrade TC.

与过渡金属诱导的均相催化体系相比，基于过渡金属掺杂金属有机骨架（MOFs）的多相催化体系对于过渡金属的有效利用和避免金属浸出是稳定的。这项工作的目的是通过一步溶剂热法合成共掺杂 MIL-53(Al)，并用它来激活过氧单硫酸盐 (PMS) 以去除水中的四环素 (TC)。XDR、SEM 和 FTIR 表征证明了 Co-MIL-53(Al) 样品的成功合成。与单独的 PMS 和 MIL-53(Al)/PMS 系统相比，25% Co-MIL-53(Al)/PMS 系统显示出最佳的 TC 去除效果。考察了Co-MIL-53(Al)/PMS体系在不同pH、共存物质和水体条件下的催化性能。₄ ^•- ) 和单线态氧 ( ¹ O ₂ ) 非自由基。还鉴定了 TC 的降解中间体，并提出了可能的降解途径。Co-MIL-53(Al) 在四个循环后显示出良好的活性。这些发现表明，Co-MIL-53(Al) 可能是一种很有前途的非均相催化剂，可用于激活 PMS 以降解 TC。