Nanostructured ZnO/BiVO_(4)I-scheme heterojunctions for piezocatalytic degradation of organic dyes via harvesting ultrasonic vibration energy  

作　　者：Yiling Li Xiaoyao Yu Yingjie Zhou Yao Lin Ying Wu 

机构地区：[1]Key Laboratory of the Ministry of Education for Advanced Catalysis Materials,College of Chemistry and Materials Science,Zhejiang Normal University,Jinhua 321004,China

出　　处：《International Journal of Minerals,Metallurgy and Materials》2025年第2期488-497,共10页矿物冶金与材料学报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.22272151);Public Welfare Technology Application Research Project of Jinhua City,China(No.2023-4-022)。

摘　　要：BiVO_(4)porous spheres modified by ZnO were designed and synthesized using a facile two-step method.The resulting ZnO/BiVO_(4)composite catalysts have shown remarkable efficiency as piezoelectric catalysts for degrading Rhodamine B(RhB)unde mechanical vibrations,they exhibit superior activity compared to pure ZnO.The 40wt%ZnO/BiVO_(4)heterojunction composite displayed the highest activity,along with good stability and recyclability.The enhanced piezoelectric catalytic activity can be attributed to the form ation of an I-scheme heterojunction structure,which can effectively inhibit the electron-hole recombination.Furthermore,hole(h+)and superoxide radical(·O_(2)^(-))are proved to be the primary active species.Therefore,ZnO/BiVO_(4)stands as an efficient and stable piezoelectric catalyst with broad potential application in the field of environmental water pollution treatment.

关 键 词：piezoelectric catalytic HETEROJUNCTION dye degradation ultrasonic vibration 

分 类 号：TQ426[化学工程] TB383.1[一般工业技术—材料科学与工程] X703[环境科学与工程—环境工程]