电子顺磁共振
降级(电信)
复合数
三元运算
纳米复合材料
纳米材料
化学工程
石墨烯
催化作用
化学
材料科学
核化学
纳米技术
复合材料
有机化学
核磁共振
计算机科学
物理
工程类
电信
程序设计语言
作者
Yuhang Zhang,Jin Qian,Peifang Wang,Yan‐Bing He,Bianhe Lu,Sijing Tang,Kailin Xu
标识
DOI:10.1016/j.seppur.2022.123075
摘要
In this study, ternary magnetic nanocomposites (SrTiO3/CoFe2O4/rGO, SCG) doped with cobalt ferrite and loaded with rGO were successfully synthesized, and utilized to rapidly activate PMS to degrade LVF. After evaluating the efficacy of samples with different loading loads, SCG-1 (1 % wt rGO loading) was selected for further testing due to its optimal catalytic activity (degradation efficiency reached 87.4 % in 5 min). Quench experiments and electron paramagnetic resonance (EPR) analysis showed that SO4−, 1O2, OH were the main active substance involved in LVF degradation. Based on the redox cycle of Co and Fe ions and the platform provided by perovskite and rGO, the reaction can be carried out quickly. The vulnerable sites and possible degradation pathways of LVF were further analyzed by density functional theory (DFT) calculation and LC-MS/MS analysis, and the developmental toxicity and ecological risk of intermediate products were determined based on toxicity assessment software (T.E.S.T). This study provided a new vision for realizing rapid antibiotic degradation in water environments and provided theoretical support for the subsequent research on novel nanomaterials.
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