MOF composites derived BiFeO3@Bi5O7I n-n heterojunction for enhanced photocatalytic performance

Yu Zhu; Chuwen Li; Dongmei Hou; Guicheng Gao; Weiqi Luo; Zhengzhou Duan; Tang Zhang; Qinyun Xv; Yujia Wang; Jijun Tang

doi:10.1088/1361-6528/ac47d1

MOF composites derived BiFeO₃@Bi₅O₇I n-n heterojunction for enhanced photocatalytic performance

Nanotechnology. 2022 Feb 21;33(20). doi: 10.1088/1361-6528/ac47d1.

Authors

Yu Zhu¹, Chuwen Li², Dongmei Hou¹, Guicheng Gao², Weiqi Luo², Zhengzhou Duan², Tang Zhang², Qinyun Xv¹, Yujia Wang¹, Jijun Tang²

Affiliations

¹ Taizhou University, College of Pharmacy and Chemistry & Chemical Engineering, Jiangsu Key Laboratory of Chiral Pharmaceuticals Biomanufacturing, Taizhou, 225300, People's Republic of China.
² School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, People's Republic of China.

PMID: 34983034
DOI: 10.1088/1361-6528/ac47d1

Abstract

BiFeO₃is a photocatalyst with excellent performance. However, its applications are limited due to its wide bandgap. In this paper, MIL-101(Fe)@BiOI composite material is synthesized by hydrothermal method and then calcined at high temperature to obtain BiFeO₃@Bi₅O₇I composite material with high degradation capacity. Among them, an n-n heterojunction is formed, which improves the efficiency of charge transfer, and the recombination of light-generated electrons and holes promotes improved photocatalytic efficiency and stability. The result of photocatalytic degradation of tetracycline under visible light irradiation showed, BiFeO₃@Bi₅O₇I (1:2) has the best photodegradation effect, with a degradation rate of 86.4%, which proves its potential as a photocatalyst.

Keywords: Bi5O7I; BiFeO3; Photocatalytic activity; n–n heterojunction.