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Article

Synthesis of ZnPc/BiVO4 Z-Scheme Heterojunction for Enhanced Photocatalytic Degradation of Tetracycline Under Visible Light Irradiation

by
Lulu Zhong
,
Liuyun Chen
,
Xinling Xie
,
Zuzeng Qin
and
Tongming Su
*
Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
*
Author to whom correspondence should be addressed.
Catalysts 2024, 14(10), 722; https://doi.org/10.3390/catal14100722
Submission received: 31 August 2024 / Revised: 3 October 2024 / Accepted: 14 October 2024 / Published: 16 October 2024

Abstract

The construction of semiconductor heterojunctions is an effective strategy to improve the photocatalytic degradation efficiency of organic pollutants. Herein, ZnPc/BiVO4 Z-scheme heterojunction was synthesized via a physical mixing method and was used for the photocatalytic degradation of tetracycline (TC) under visible light irradiation. Compared with BiVO4 and ZnPc, the 15ZnPc/BiVO4 sample exhibited improved light absorption capacity, and the electron-hole separation efficiency and redox capacity were enhanced due to the formation of the Z-scheme heterojunction. The 15ZnPc/BiVO4 composite exhibited an optimal TC degradation rate of 83.1% within 120 min. Additionally, 15ZnPc/BiVO4 exhibited excellent stability in cycling experiments, which maintained a high TC degradation rate of 79.5% after four cycles. Free radical trapping experiments indicated that superoxide radicals (O2) were the main active substances in the photocatalytic degradation of TC.
Keywords: BiVO4; ZnPc; Z-scheme; tetracycline; degradation BiVO4; ZnPc; Z-scheme; tetracycline; degradation

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MDPI and ACS Style

Zhong, L.; Chen, L.; Xie, X.; Qin, Z.; Su, T. Synthesis of ZnPc/BiVO4 Z-Scheme Heterojunction for Enhanced Photocatalytic Degradation of Tetracycline Under Visible Light Irradiation. Catalysts 2024, 14, 722. https://doi.org/10.3390/catal14100722

AMA Style

Zhong L, Chen L, Xie X, Qin Z, Su T. Synthesis of ZnPc/BiVO4 Z-Scheme Heterojunction for Enhanced Photocatalytic Degradation of Tetracycline Under Visible Light Irradiation. Catalysts. 2024; 14(10):722. https://doi.org/10.3390/catal14100722

Chicago/Turabian Style

Zhong, Lulu, Liuyun Chen, Xinling Xie, Zuzeng Qin, and Tongming Su. 2024. "Synthesis of ZnPc/BiVO4 Z-Scheme Heterojunction for Enhanced Photocatalytic Degradation of Tetracycline Under Visible Light Irradiation" Catalysts 14, no. 10: 722. https://doi.org/10.3390/catal14100722

APA Style

Zhong, L., Chen, L., Xie, X., Qin, Z., & Su, T. (2024). Synthesis of ZnPc/BiVO4 Z-Scheme Heterojunction for Enhanced Photocatalytic Degradation of Tetracycline Under Visible Light Irradiation. Catalysts, 14(10), 722. https://doi.org/10.3390/catal14100722

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