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.

引用

页数：10

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