文献类型：期刊文献

英文题名：Piezo-/photo catalysis of the PZT/Ag₂O heterostructure for dye decomposition under visible light and ultrasonic vibration

作者：Yang, Cuina[1];Zou, Haifan[1];Zhao, Lei[1];Shi, Jicun[1];Wang, Wenbo[2]

第一作者：杨萃娜

通讯作者：Wang, WB[1]

机构：[1]Xinxiang Univ, Sch Civil Engn & Architecture, Xinxiang 453003, Peoples R China;[2]Chengde Petr Coll, Dept Construction Engn, Chengde 067000, Peoples R China

第一机构：新乡学院土木工程与建筑学院

通讯机构：[1]corresponding author), Chengde Petr Coll, Dept Construction Engn, Chengde 067000, Peoples R China.

年份：2023

卷号：47

期号：38

起止页码：17693-17700

外文期刊名：NEW JOURNAL OF CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001068034000001)】；

基金：The authors gratefully acknowledge financial support from the Key Scientific Research Projects in Colleges and Universities of Henan Province (no. 21B560014) and the Open Cooperation Program of Henan Science and Technology (grant no. 182106000029).

语种：英文

摘要：Promoting the separation of photoelectrons and holes can enhance the photocatalytic performance of photocatalysts. The combination of photocatalysts with piezoelectric materials is an effective way to improve the photocatalytic performance. In this paper, the heterogeneous structure of PZT/Ag2O is proposed, which can effectively improve its photocatalytic degradation performance through the piezoelectric effect. RhB degradation experiments were conducted under ultrasonic vibration and visible light irradiation to evaluate the photocatalytic performance of PZT/Ag2O. It is worth noting that PZT/Ag2O showed excellent piezo-/photocatalytic activity, and the degradation rate of RhB within 60 min was 96.31%, which was higher than those achieved under ultrasonic vibration (55.98%) and visible light irradiation (65.14%). The improved performance is due to the heterojunction construction widening the optical response range, while the piezoelectric effect provides a built-in polarization field to improve the separation efficiency of photogenerated electrons and holes. This study provides an efficient and feasible piezo-/photocatalyst for the treatment of pollutants. It is helpful to understand the mechanism of the piezoelectric effect and improve the photocatalytic performance.