期刊
VACUUM
卷 207, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.vacuum.2022.111632
关键词
Na0; 5Bi0; 5TiO3; ZnO; MB degradation; Z-scheme heterojunction; Photocatalysis
The effects of ZnO addition on the properties of Na0.5Bi0.5TiO3 were investigated, and it was found that the ZnO/Na0.5Bi0.5TiO3 composite with 5% ZnO content exhibited the best photocatalytic performance and cycling stability, making it suitable for high-efficiency and high-activity photocatalysis in degrading organic pollutants.
ZnO/Na0.5Bi0.5TiO3 composites were prepared by chemical hydrothermal deposition and hydrothermal method and the effects of ZnO adding on the properties of Na0.5Bi0.5TiO3 were investigated. The results show that the ZnO/Na0.5Bi0.5TiO3 composite with 5% ZnO content has the best photocatalytic performance and good cycling stability. Under simulated sunlight irradiation, the degradation rate for MB (10 mg/L) by ZnO/Na0.5Bi0.5TiO3 composites reached 100% within 20 minutes, and the reaction rate constant was 0.07427min- 1, which were 27.51 and 6.00 times higher than those of Na0.5Bi0.5TiO3 (NBT, 0.0027 min-1) and ZnO (0.01237min- 1), respectively. The incorporation of ZnO on the Na0.5Bi0.5TiO3 can form Z-scheme heterostructure ZnO/ Na0.5Bi0.5TiO3 and increase the specific surface area, inhibiting the recombination of electron and hole and improving separation and transfer carriers efficiency. ZnO/Na0.5Bi0.5TiO3 composites have potential applications in high-efficiency and high-activity photocatalysts to degrade organic pollutants.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据