辽宁石油化工大学学报2024，Vol.44Issue(5)：8-14,7.DOI:10.12422/j.issn.1672-6952.2024.05.002
CeO2@UiO-66光催化降解盐酸四环素
Photocatalytic Degradation of Tetracycline Hydrochloride by CeO2@UiO-66
摘要
Abstract
The environmental contamination caused by tetracycline hydrochloride(TC)has aroused widespread concern,photocatalytic degradation of TC has become an effective method.CeO2 was prepared by coprecipitation method,and solvothermal synthesis of CeO2@UiO-66 composite catalysts.The prepared catalysts were characterized by FT-IR,XRD,SEM and EDS respectively,and the effects of the amount of CeO2,catalyst mass concentration and H2O2 mass fraction on the photocatalytic degradation of TC were also investigated.The results showed that CeO2@UiO-66 was successfully synthesized.When the amount of CeO2 substance is 25 mmol,the mass concentration of TC solution is 20 mg/L,the mass concentration of catalyst is 0.2 g/L,and the mass fraction of H2O2 is 2%,CeO2@UiO-66 photocatalytic effect is the best,and the TC degradation rate reaches over 98%when irradiated by UV lamp for 70 min.The free radical trapping experiments showed that holes and·OH were the main contributors in the photocatalytic process.In addition,after six cycles,the degradation rate of TC composite photocatalyst can still maintain above 85%,which indicates its good stability.关键词
UiO-66/CeO2/盐酸四环素/光催化Key words
UiO-66/CeO2/Tetracycline hydrochloride/Photocatalysis分类
化学化工引用本文复制引用
张琳,宫晓杰,李丽华..CeO2@UiO-66光催化降解盐酸四环素[J].辽宁石油化工大学学报,2024,44(5):8-14,7.基金项目
辽宁省教育厅高校科研基金项目(L2020039). （L2020039）
