化学
催化作用
羟基自由基
钴
降级(电信)
钙钛矿(结构)
激进的
氧化还原
核化学
无机化学
有机化学
计算机科学
电信
作者
Jinxin Li,Dan Zhong,Jianyang Huang,Wencheng Ma,Kefei Li,Menglin Li,Rui Wu,Congqiao Pu,Qi Wang,Yuzhe Zhou,Shaobo Zhang
出处
期刊:Chemosphere
[Elsevier]
日期:2023-02-01
卷期号:313: 137564-137564
被引量:9
标识
DOI:10.1016/j.chemosphere.2022.137564
摘要
Cobalt mediated perovskite oxides (Ca-Fe-Co-x) were prepared for heterogeneous Fenton-like, which exhibited excellent tetracycline (TC) degradation efficiency and wider pH suitability (3-11). Experimental results showed that Ca-Fe-Co-1.0 sample displayed the highest degradation rate could reach 80.5% under neutral conditions, and maintain at around 80% after four cycles. The analysis of degradation mechanism showed that the redox of Fe2+/Fe3+ and Co2+/Co3+ significant enhanced the activation of H2O2 to superoxide radical (∙O2-). Meanwhile, the hydroxyl radical (∙OH) was also detected by ESR analysis. In addition, the possible degradation pathway and mechanism of TC were deduced via UPLC-QTOF/MS analysis and density functional theory (DFT) calculations. The toxicity of TC and its intermediates were also evaluated by the ECOSAR software. The Ca-Fe-Co-1.0/nanocellulose aerogel (NCA) displayed highly removal efficiency of TC wastewater in the long-term operation conduction. This study provided a feasible method to design and synthesis heterogeneous Fenton-like catalysts for antibiotic degradation.
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