Construction of Z-scheme heterojunction LaCoO3 modified ZnO for photocatalytic degradation of tetracycline under visible light irradiation

Ying Zhang; Quanying Zhang; Kaichuang Xing; Yingguan Xiao; Mingxia Zhao; Yumin Cun

Catalysis Communications (Jan 2024)

Construction of Z-scheme heterojunction LaCoO3 modified ZnO for photocatalytic degradation of tetracycline under visible light irradiation

Ying Zhang,
Quanying Zhang,
Kaichuang Xing,
Yingguan Xiao,
Mingxia Zhao,
Yumin Cun

Affiliations

Ying Zhang: Anhui Provincial Key Laboratory for Degradation and Monitoring of Pollution of the Environment, School of Chemistry and Material Engineering, Fuyang Normal University, Fuyang 236037, China; Corresponding authors at: Fuyang Normal University, East Qinghe Road 100, Fuyang, Anhui 236037, China.
Quanying Zhang: School of Medical Technology, Guangdong Medical University, Zhanjiang 524023, China
Kaichuang Xing: Anhui Provincial Key Laboratory for Degradation and Monitoring of Pollution of the Environment, School of Chemistry and Material Engineering, Fuyang Normal University, Fuyang 236037, China
Yingguan Xiao: Research School of Polymer Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
Mingxia Zhao: Anhui Provincial Key Laboratory for Degradation and Monitoring of Pollution of the Environment, School of Chemistry and Material Engineering, Fuyang Normal University, Fuyang 236037, China
Yumin Cun: Anhui Provincial Key Laboratory for Degradation and Monitoring of Pollution of the Environment, School of Chemistry and Material Engineering, Fuyang Normal University, Fuyang 236037, China

Journal volume & issue: Vol. 186
p. 106815

Abstract

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The Z-scheme LaCoO3/ZnO (LCZ) heterojunction photocatalyst was designed and prepared using the hydrothermal method. In the photocatalytic degradation of tetracycline hydrochloride, LCZ exhibited the highest photocatalytic activity with a rate constant of 0.0179 min−1,which is 3.2 and 2.3 times higher than those of pure ZnO and LaCoO3, respectively. This study presents a promising approach with potential applications in the field of photocatalytic degradation. Further theoretical studies reveal that the existence of Z-scheme heterojunction can prevent the recombination of electron-hole pairs, leading to enhanced photocatalytic performance.

Published in Catalysis Communications

ISSN: 1566-7367 (Print); 1873-3905 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: https://www.journals.elsevier.com/catalysis-communications

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