Photocatalytic degradation of organic dye and tetracycline by ternary -Ag2O/AgBr-CeO2 photocatalyst under visible-light irradiation

被引：87
作者：
Su, Fu [1 ]
Li, Pengpeng [2 ]
Huang, Jianshu [1 ]
Gu, Meijuan [1 ]
Liu, Zhiying [1 ]
Xu, Yanhua [1 ]
机构：
[1] Nanjing Tech Univ, Nanjing 211800, Peoples R China
[2] Nanjing Normal Univ, Sch Chem & Mat Sci, Nanjing 210023, Peoples R China
来源：
SCIENTIFIC REPORTS | 2021年 / 11卷 / 01期
关键词：
D O I：
10.1038/s41598-020-76997-0
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
In this work, CeO2 nanosheets decorated with Ag2O and AgBr are successfully fabricated via a simple sediment-precipitation method. The as-prepared ternary Ag2O/AgBr-CeO2 composite with double Z-scheme construction was analyzed by various analytical techniques. Ag nanoparticles (NPs) used as the electron medium could reduce the recombination of photoelectrons and holes, thus leading to the improvement of photocatalytic performance of these catalysts. Due to the unique structure and composite advantages, the optimal Ag2O/AgBr-CeO2 photocatalysts exhibit the superior tetracycline (TC) degradation efficiency of 93.23% and favorable stability with near-initial capacity under visible light irradiation. This ternary Z-scheme structure materials will be the well-promising photocatalysts or the purification of antibiotic wastewater.
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页数：13
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