生物炭基铁酸钴活化过一硫酸盐降解水中环丙沙星的性能研究  

Study on degradation of ciprofloxacin in water through activation of peroxymonosulfate by biochar@CoFe_(2)O_(4)

作　　者：张宪 龙俊锟 高俊楠 许梦喻 刘紫娟 石凤琼 ZHANG Xian;LONG Jun-kun;GAO Jun-nan;XU Meng-yu;LIU Zi-juan;SHI Feng-qiong(Key Laboratory of Public Health Safety of Hebei Province,School of Public Health,Hebei University,Baoding 071002,China;National Engineering Research Center of Green Recycling for Strategic Metal Resources,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]河北大学公共卫生学院河北省公共卫生安全重点实验室,河北保定071002 [2]中国科学院过程工程研究所战略金属资源绿色循环利用国家工程中心,北京100190

出　　处：《应用化工》2023年第6期1689-1691,1696,共4页Applied Chemical Industry

基　　金：国家自然科学基金(21906167);河北省高等学校科学技术研究项目(QN2019229);河北省重点研发计划-卫生健康领域面上项目(21373701D);河北省自然科学基金(B2020201031)。

摘　　要：通过高温煅烧生物秸秆制备生物炭,借助水热法制备生物炭基铁酸钴,活化过一硫酸盐降解水中环丙沙星,考察生物炭/铁酸钴质量比、过一硫酸盐浓度、环丙沙星浓度对其降解性能的影响,在此基础上进一步探究其重复利用性和催化机理。研究表明,生物炭/铁酸钴质量比为1∶1,过一硫酸盐浓度为0.25 g/L时,对5~40 mg/L的环丙沙星均具有较好的降解效果,生物炭基铁酸钴重复利用5次后,活化过一硫酸盐对CIP的降解率仍高达80.0%。在降解过程中,以生物炭基铁酸钴活化过一硫酸盐产生的硫酸根自由基氧化降解环丙沙星为主要途径。The biochar was prepared by the high temperature calcination,the biochar@CoFe_(2)O_(4) was hydrothermal synthesized,was further used to activate the peroxymonosulfate(PMS)to degrade the ciprofloxacin(CIP)in the water,and explored effect of different biochar/CoFe_(2)O_(4) mass ratio,PMS concentration,CIP concentration in the degradation efficiency of CIP.Based on the above,the degradation mechanism was also investigated.The obtained results presented the mass ratio of biochar/CoFe 2O 4 was 1∶1 with the PMS concentration of 0.25 g/L have excellent degradation efficiency between the 5~40 mg/L CIP solution.It could be reused over 5 times with excellent activated property for the PMS and the CIP degradation rate reached to 80.0%.In the process of degradation,sulfate radicals produced by the PMS with activation of biochar@CoFe_(2)O_(4) was the main degradation route of CIP.

关 键 词：环丙沙星 降解 生物炭 铁酸钴 高级氧化技术 

分 类 号：TQ138.1[化学工程—无机化工] TQ589[理学—无机化学] TQ118[理学—化学] O611.4