Herein, iron-cobalt layered double hydroxide (FeCo-LDH) was synthesized by sacrificing Co-containing zeolite imidazolate framework materials (ZIF-67) in iron ethanolic solution at room temperature. The catalytic performances of catalysts were investigated by activating peroxymonosulfate (PMS) for tetracycline (TC) degradation. Experimental results were demonstrated that FeCo-LDH with molar ratios of Fe and Co was 1.5 (FeCo-LDH-1.5) exhibited the highest catalytic activity, in which the TC degradation efficiency was reached to 92% within 5 min. The system of FeCo-LDH-1.5/PMS exhibited high stability and high efficiency in the influencing factor experiments including TC concentrations, initial pH, coexisting anions (Na⁺, Cl^-, SO₄²⁻) and humic acid (HA). Results of quenching experiments and electron paramagnetic resonance (EPR) characterization showed that O₂^•- and SO₄^•- radicals were the foremost reactive species for TC degradation. Liquid chromatograph - mass spectrometer (LC-MS) and three-dimensional excitation emission matrix fluorescence spectro photometer (3D EEMs) were conducted to investigate the degradation intermediate and possible degradation pathway. Moreover, high degradation efficiency was implemented in actual wastewater by the FeCo-LDH-1.5/PMS system. Compared to Fe³⁺/PMS and Co²⁺/PMS homogeneous system, the FeCo-LDH-1.5/PMS system was exhibited advantages in catalytic activity and high reusability. This study provided a convenient method to synthesis advanced hydrotalcite-like catalysts, which showed remarkable performance in actual wastewater treatment.

在此，通过在室温下在乙醇铁溶液中牺牲含钴的沸石咪唑酸盐骨架材料（ZIF-67）来合成铁-钴层状双氢氧化物（FeCo-LDH）。通过活化过氧单硫酸盐（PMS）降解四环素（TC）来研究催化剂的催化性能。实验结果表明，Fe和Co摩尔比为1.5的FeCo-LDH（FeCo-LDH-1.5）表现出最高的催化活性，其中TC降解效率在5分钟内达到92％。FeCo系-LDH-1.5 / PMS的系统表现出的影响因素实验，包括TC浓度，初始pH值，共存阴离子（钠高稳定性和高效率⁺，氯^-，SO ₄ ^2-）和腐殖酸（HA）。淬灭实验和电子顺磁共振（EPR）表征的结果表明，O ₂ ^•-和SO ₄ ^•-自由基是TC降解的最重要的反应物种。进行了液相色谱-质谱仪（LC-MS）和三维激发发射矩阵荧光分光光度计（3D EEM）的研究，以研究降解中间体和可能的降解途径。此外，FeCo-LDH-1.5 / PMS系统在实际废水中实现了高降解效率。与Fe ³⁺ / PMS和Co ^2+相比/ PMS均相系统，FeCo-LDH-1.5 / PMS系统在催化活性和可重复使用性方面均表现出优势。该研究为合成高级水滑石类催化剂提供了一种方便的方法，该方法在实际废水处理中表现出卓越的性能。