Fabrication of Ag-Doped ZnO Photocatalysts Derived From MIL-125(Zn) With Enhanced Photocatalytic Activity

Xiaobing Yang; Xiangrui Yang; Xiangrui Yang; Shichao Wu; Shichao Wu

doi:10.3389/fenrg.2022.949551

Frontiers in Energy Research (Jul 2022)

Fabrication of Ag-Doped ZnO Photocatalysts Derived From MIL-125(Zn) With Enhanced Photocatalytic Activity

Xiaobing Yang,
Xiangrui Yang,
Xiangrui Yang,
Shichao Wu,
Shichao Wu

Affiliations

Xiaobing Yang: School of Photovoltaic Materials, Jiangxi New Energy Technology Institute, Xinyu, China
Xiangrui Yang: Department of Nuclear Medicine, Xiangya Hospital, Central South University, Changsha, China
Xiangrui Yang: National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
Shichao Wu: Department of Nuclear Medicine, Xiangya Hospital, Central South University, Changsha, China
Shichao Wu: National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China

DOI: https://doi.org/10.3389/fenrg.2022.949551
Journal volume & issue: Vol. 10

Abstract

Read online

Metal–organic frameworks (MOFs) have been widely used in various fields, including gas storage, separation, sensors, and catalysis, owing to their excellent performance. In this study, a zinc-based MOF [MIL-125(Zn)] was successfully synthesized using the solvothermal method, and Ag-doped ZnO (Ag/ZnO) was prepared by pyrolyzing Ag/MIL-125(Zn). The fabricated Ag/ZnO was used as a photocatalyst for rhodamine (RhB) degradation. Results showed that the MIL-125(Zn) derived from Ag/ZnO exhibits superior photocatalytic activity. It can degrade 99.4% of RhB under 20-min ultraviolet (UV) light irradiation, higher than those achieved using ZnO (73.2%) and MIL-125(ZnO) (19.6%). Furthermore, Ag/ZnO shows excellent stability. After four photocatalytic degradation cycles, the photocatalytic activity of Ag/ZnO reduces by only 3.6%. The excellent photocatalytic performance of Ag/ZnO may be attributed to the synergistic effect of Ag nanoparticles and ZnO. The possible photocatalytic mechanism of RhB degradation on the Ag/ZnO photocatalyst under UV light irradiation was proposed.

Published in Frontiers in Energy Research

ISSN: 2296-598X (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: General Works
Website: https://www.frontiersin.org/journals/energy-research

About the journal

Abstract

Keywords