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Tetracycline degradation in the Fe3O4@HKUST-1/persulfate system: properties, activation mechanism, and degradation pathways
Reaction Chemistry & Engineering ( IF 3.4 ) Pub Date : 2024-01-03 , DOI: 10.1039/d3re00555k Tongtong Wu 1 , Weili Gao 1 , Jiehe Zhang 1 , Mingxu Hao 1 , Shiyu Zhang 1 , Haisheng Tao 1, 2
Reaction Chemistry & Engineering ( IF 3.4 ) Pub Date : 2024-01-03 , DOI: 10.1039/d3re00555k Tongtong Wu 1 , Weili Gao 1 , Jiehe Zhang 1 , Mingxu Hao 1 , Shiyu Zhang 1 , Haisheng Tao 1, 2
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As a typical antibiotic, tetracycline is ecotoxic and prone to bacterial resistance, producing superbugs and causing a public ecological crisis, thus raising the need to eliminate tetracycline from the aqueous environment. In this work, magnetic catalyst Fe3O4@HKUST-1 was prepared for catalyzing the degradation of tetracycline by persulfate. X-ray diffraction, scanning electron microscopy, and vibrating sample magnetometry were used to characterize the catalyst, and the results show that the catalyst had good crystallinity and magnetic properties. Tetracycline removal in the Fe3O4@HKUST-1/persulfate system reached 84.80%, and the catalyst was easily recovered from the solution due to its good magnetic properties. Mechanism analysis revealed that the non-radical pathway was the main degradation channel in the Fe3O4@HKUST-1/persulfate system, and 1O2 was the main reactive oxygen species generated from Ov on the surface of the Fe3O4@HKUST-1 catalyst. Tetracycline degradation was achieved by hydroxylation, demethylation, decarbonylation, dehydroxylation and the cleavage of C–N bonds. This finding holds significant value in further comprehension of the catalytic activation mechanism of metal–organic frameworks derivatives on persulfate and provides novel ideas for efficient water treatment technology development.
中文翻译：
Fe3O4@HKUST-1/过硫酸盐系统中的四环素降解：性质、活化机制和降解途径
四环素作为一种典型的抗生素，具有生态毒性，容易产生细菌耐药性，产生超级细菌，造成公共生态危机，因此迫切需要从水环境中消除四环素。本工作制备了磁性催化剂Fe 3 O 4 @HKUST-1，用于催化过硫酸盐降解四环素。采用X射线衍射、扫描电镜和振动样品磁强计对催化剂进行了表征，结果表明催化剂具有良好的结晶度和磁性能。Fe 3 O 4 @HKUST-1/过硫酸盐体系中四环素的去除率达到84.80%，并且由于催化剂具有良好的磁性，很容易从溶液中回收。机理分析表明，非自由基途径是Fe 3 O 4 @HKUST-1/过硫酸盐体系的主要降解通道，1 O 2是Fe 3 O表面O v产生的主要活性氧。4 @HKUST-1催化剂。四环素降解是通过羟基化、去甲基化、脱羰基、脱羟基和C-N键断裂来实现的。这一发现对于进一步理解金属有机骨架衍生物对过硫酸盐的催化活化机制具有重要价值，并为高效水处理技术的开发提供了新思路。
更新日期：2024-01-03
中文翻译：
Fe3O4@HKUST-1/过硫酸盐系统中的四环素降解：性质、活化机制和降解途径
四环素作为一种典型的抗生素，具有生态毒性，容易产生细菌耐药性，产生超级细菌，造成公共生态危机，因此迫切需要从水环境中消除四环素。本工作制备了磁性催化剂Fe 3 O 4 @HKUST-1，用于催化过硫酸盐降解四环素。采用X射线衍射、扫描电镜和振动样品磁强计对催化剂进行了表征，结果表明催化剂具有良好的结晶度和磁性能。Fe 3 O 4 @HKUST-1/过硫酸盐体系中四环素的去除率达到84.80%，并且由于催化剂具有良好的磁性，很容易从溶液中回收。机理分析表明，非自由基途径是Fe 3 O 4 @HKUST-1/过硫酸盐体系的主要降解通道，1 O 2是Fe 3 O表面O v产生的主要活性氧。4 @HKUST-1催化剂。四环素降解是通过羟基化、去甲基化、脱羰基、脱羟基和C-N键断裂来实现的。这一发现对于进一步理解金属有机骨架衍生物对过硫酸盐的催化活化机制具有重要价值，并为高效水处理技术的开发提供了新思路。
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