新型CoFe@NS-800复合材料活化过硫酸盐降解环丙沙星
山勇 , 涂保华 , 汪学明 , 赵远 , 陈帝翰 , 曾雯钰 , 李一帆
现代化工 ›› 2025, Vol. 45 ›› Issue (8) : 140 -146.
新型CoFe@NS-800复合材料活化过硫酸盐降解环丙沙星
Novel CoFe@NS-800 composite activated persulfate to degrade ciprofloxacin
以水稻秸秆为原料制备硫脲改性生物炭(NS-800),并负载铁钴双金属制得复合材料CoFe@NS-800。该材料经多种表征证实富含氧空位及还原性官能团,利于产生Fe(Ⅱ)/Co(Ⅱ)。在活化过一硫酸盐(PMS)降解环丙沙星(CIP)中,CoFe@NS-800/PMS体系较单独材料显著提升降解效率,证明其高效活化PMS能力。EPR与淬灭实验表明 1O2是主要活性物种。TOC及循环实验验证了材料的高效性与可循环性,为废水有机污染物治理提供了经济高效催化剂。
Thiourea modified biochar (NS-800) is prepared from rice straw,and then loaded with iron-cobalt bimetallic materials to form CoFe@NS-800 composite.This composite is confirmed by various characterizations (SEM-Mapping,BET,XRD,FT-IR,XPS) to be rich in oxygen vacancies and reducing functional groups,which is conducive to the generation of Fe(Ⅱ)/Co(Ⅱ).In the degradation of ciprofloxacin by activated peroxymonosulfate (PMS),CoFe@NS-800/PMS system improves the degradation efficiency significantly compared with the material alone,demonstrating the ability of CoFe@NS-800 composite to activate PMS effectively.It is clarified by EPR and quenching experiments that 1O2 is the main active species.It is indicated by TOC and cycling experiments that the composite has high efficiency and recyclability,providing an economical and efficient catalyst for the treatment of organic pollutants in wastewater.
生物炭 / 环丙沙星 / 铁钴双金属 / 过硫酸盐 / 硫脲
biochar / ciprofloxacin / Fe-Co bimetal / persulfate / thiourea
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王俊辉, 陆彩妹, 李泽华, |
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江苏省研究生创新创业计划项目(SJCX24_1653)
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