过氧二硫酸盐
化学
催化作用
降级(电信)
废水
碳纤维
电子顺磁共振
化学工程
核化学
材料科学
有机化学
环境工程
环境科学
电信
物理
核磁共振
复合数
计算机科学
工程类
复合材料
作者
Xindan Fan,Qintie Lin,Junli Zheng,Hengyi Fu,Kehuan Xu,Yuxin Liu,Yongjie Ma,Jin He
标识
DOI:10.1016/j.jhazmat.2022.129392
摘要
Since the discovery of the potential hazards of ciprofloxacin (CIP) to the ecosystem and human health, there has been an urgent need to develop effective technologies to solve the severe issue. In this work, the nanozero-valent iron graphitized carbon matrix (x[email protected]m) were prepared via a hydrothermal method to activate peroxydisulfate (PDS) for degradation of CIP. Specifically, [email protected]7 exhibited the excellent catalytic performance for PDS activation to degrade CIP. Moreover, the catalyst exhibited vigorous interference resistance at various pH values, in the presence of various inorganic anions and under humic acid conditions. The characterization results demonstrated that Fe was successfully embedded on the carbon matrix and became the active sites to promote ROS production. It is demonstrated that O2•− was the main active species rather than •OH and SO4•−, based on quench trapping, EPR experiments and steady state concentrations calculations. The possible pathways of CIP degradation were proposed using LC–MS results and density functional theory. The outcomes of the toxicity estimation software tool found that the toxicity of CIP was reduced. This study not only investigated a novel methodology for the degradation of antibiotic wastewater but also provides a feasible pathway for carbon-neutral wastewater treatment.
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