High efficient and stable photocatalyst CeO2/ZnO for tetracycline degradation

被引:5
作者
Mou, Zhen [1 ]
Zhou, Hongyan [3 ]
Wu, Shuang [1 ]
Tang, Wenqi [1 ]
Zhang, Yiyu [1 ]
Zhang, Kejie [1 ,2 ]
Zhou, Zhipin [4 ]
机构
[1] Nanjing Inst Technol, Sch Mat Sci & Engn, Nanjing 211167, Peoples R China
[2] Jiangsu Key Lab Adv Struct Mat & Applicat Technol, Nanjing 211167, Peoples R China
[3] Jiyuan Vocat & Tech Coll, Dept Met & Chem Engn, Jiyuan 454650, Peoples R China
[4] Nanjing Univ, Sch Chem & Chem Engn, Nanjing 210023, Peoples R China
关键词
CeO2; ZnO; nanocomposites; photocatalytic; tetracycline; METAL-OXIDE SEMICONDUCTORS; PERFORMANCE; ENERGY; HETEROJUNCTION; CHALLENGES;
D O I
10.1142/S1793604722510250
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Three kinds of CeO2/ZnO nanocomposites were successfully prepared by the hydrothermal method. The morphology and composition tests show that the CeO2 cubic nanoparticles with a side length of about 10 nm are uniformly loaded on the irregular ZnO nanosheets. Under ultraviolet light irradiation, CeO2/ZnO (1:5) has the best photocatalytic performance and the degradation efficiency of tetracycline (TC) is 97.2% within 140 min. In addition, with CeO2/ZnO (1:5) as photocatalyst, the degradation rate of TC only decreased by 1.3% after 6 cycles, indicating that CeO2/ZnO (1:5) has excellent photocatalytic stability. Therefore, the CeO2/ZnO (1:5) nanocomposite has a bright future for industrial application in wastewater treatment.
引用
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页数:7
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