CuO/CoFe_(2)O_(4)活化过一硫酸盐去除四环素的研究  

Study on removal of tetracycline by CuO/CoFe_(2)O_(4) activated peroxymonosulfate

作　　者：周书葵 田瑞 段毅 高聪 吴姣 ZHOU Shu-kui;TIAN Rui;DUAN Yi;GAO Cong;WU Jiao(School of Civil Engineering,University of South China,Hengyang 421001,China)

机构地区：[1]南华大学土木工程学院,湖南衡阳421001

出　　处：《现代化工》2022年第9期102-108,共7页Modern Chemical Industry

基　　金：国家自然科学基金项目(51174117);湖南省教育厅科研平台项目(15K106);湖南省创新平台开放基金项目(17K078)。

摘　　要：采用水热法制备磁性CuO/CoFe_(2)O_(4)(CCF)复合材料,并将其用于活化过一硫酸盐(PMS)。通过SEM-EDS、XRD和XPS对CCF进行表征。以四环素(TC)为目标污染物,考察了溶液初始pH、氧化剂用量、催化剂质量浓度、共存离子对CCF活化PMS处理含TC溶液的影响。结果表明,当温度为25℃、TC的初始质量浓度为20 mg/L、CCF质量浓度为0.09 g/L、PMS初始浓度为0.3 mmol/L、初始pH为7时,30 min内去除率可达91%,且CCF具有良好的稳定性与可重复使用性;反应过程中SO_(4)^(-)·、·OH和^(1)O_(2)都参与了TC的降解,其中^(1)O_(2)发挥了主要作用。Magnetic CuO/CoFe_(2)O_(4)(CCF)composites are prepared via the hydrothermal method,and used to activate the peroxymonosulfate(PMS).CCF is characterized by means of SEM-EDS,XRD and XPS.With tetracycline as a target pollutant,the influence of the initial pH of solution,oxidant dosage,catalyst dosage and co-existing ions on the treatment of tetracycline by CCF activated PMS is explored.The results show that the removal rate of tetracycline can reach to 91%within 30 min when the temperature is 25℃,the initial concentration of tetracycline is 20 mg·L^(-1),the concentration of CCF is 0.09 g·L^(-1),the initial concentration of PMS is 0.3 mmol·L^(-1),and the initial pH is 7.In addition,CCF works with a good stability and reusability.SO_(4)^(-)·,·OH,and ^(1)O_(2) are all involved in the reaction process of degrading tetracycline,and ^(1)O_(2) plays a dominant role.

关 键 词：铁酸钴 过一硫酸盐 活化 四环素 机理 

分 类 号：X703[环境科学与工程—环境工程]