Preparation and catalytic properties of ZnO/Na0.5Bi0.5TiO3 composites

被引：6
作者：
Wang, Baolong [1 ,2 ]
Hong, Ying [1 ,2 ]
Hu, Shanshan [1 ,2 ]
Lu, Shuang [1 ,2 ]
Gu, Chenzhang [1 ,2 ]
Wu, Qi [1 ,2 ]
Chu, Benli [1 ,2 ]
Wang, Yinzhen [1 ,2 ]
机构：
[1] South China Normal Univ, Guangdong Engn Technol Res Ctr Efficient Green Ene, Sch Phys & Telecommun Engn, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Peoples R China
[2] South China Normal Univ, Guangdong Hong Kong Joint Lab Quantum Matter, Guangzhou 510006, Guangdong, Peoples R China
来源：
VACUUM | 2023年 / 207卷
基金：
中国国家自然科学基金;
关键词：
Na0; 5Bi0; 5TiO3; ZnO; MB degradation; Z-scheme heterojunction; Photocatalysis; RAY PHOTOELECTRON-SPECTROSCOPY; PHOTOCATALYTIC DEGRADATION; ZNO NANOSTRUCTURES; DESIGN; NA0.5BI0.5TIO3; NANOSHEETS; NANORODS; ENERGY; WATER;
D O I：
10.1016/j.vacuum.2022.111632
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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.
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页数：10
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