过氧二硫酸盐
电子转移
降级(电信)
纳米棒
催化作用
化学
四环素
激活剂(遗传学)
纳米材料
材料科学
化学工程
纳米技术
光化学
有机化学
生物化学
计算机科学
工程类
基因
电信
抗生素
作者
Hanlin Wang,Tianhu Chen,Haibo Li,Xuehua Zou,Dong Chen,Ziyang Chu,Jingchao Hu,Michael J. Bentel,Jialong Hao,Jiajia Zhang,Dionysios D. Dionysiou
标识
DOI:10.1016/j.seppur.2023.125962
摘要
Magnetic Fe1−xS@SC nanorods were synthesized by sulfurizing MIL-88A (Fe) and utilized to activate peroxydisulfate (PDS) for the degradation of tetracycline (TC). The superior catalytic performance of Fe1−xS@SC can be attributed to its close contact interface, high electron density, and excellent electron transfer conductivity. Both radical pathway (SO4−, OH, O2−) and nonradical pathway (1O2) were found to be responsible for the degradation of TC in Fe1−xS@SC/PDS system, with the electron transfer played a crucial role. Importantly, a high linear correlation (R2 = 0.9153) between the level of carbon defect and the reaction rate constant confirmed the structure–activity relationship between graphitization and catalytic activity. The Fe1−xS@SC/PDS system has the advantages of strong anti-interference ability (Cl−, NO3−, HA), broad applicability, recyclability, and low PDS consumption. Furthermore, possible degradation pathways of TC were proposed and the toxicity of intermediates was evaluated. This study provides novel insight into carbon materials and iron sulfide to purify antibiotic-contaminated wastewater by activating PDS.
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