Visible-Light-Driven Z-Type Pg-C3N4/Nitrogen Doped Biochar/BiVO4 Photo-Catalysts for the Degradation of Norfloxacin

Li, Yi; Wang, Wenyu; Chen, Lei; Ma, Huifang; Lu, Xi; Ma, Hongfang; Liu, Zhibao

doi:10.3390/ma17071634

Open AccessArticle

Visible-Light-Driven Z-Type Pg-C₃N₄/Nitrogen Doped Biochar/BiVO₄ Photo-Catalysts for the Degradation of Norfloxacin

by

Yi Li

¹,

Wenyu Wang

^1,*,

Lei Chen

¹,

Huifang Ma

¹,

Xi Lu

²,

Hongfang Ma

¹ and

Zhibao Liu

^2,*

¹

School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China

²

School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China

^*

Authors to whom correspondence should be addressed.

Materials 2024, 17(7), 1634; https://doi.org/10.3390/ma17071634

Submission received: 11 March 2024 / Revised: 24 March 2024 / Accepted: 28 March 2024 / Published: 3 April 2024

(This article belongs to the Special Issue Advanced Photocatalytic Material: Synthesis, Characterization and Application)

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Abstract

Antibiotics cannot be effectively removed by traditional wastewater treatment processes, and have become widespread pollutants in various environments. In this study, a Z-type heterojunction photo-catalyst Pg-C₃N₄ (PCN)/Nitrogen doped biochar (N-Biochar)/BiVO₄ (NCBN) for the degradation of norfloxacin (NOR) was prepared by the hydrothermal method. The specific surface area of the NCBN (42.88 m²/g) was further improved compared to BiVO₄ (4.528 m²/g). The photo-catalytic performance of the catalyst was investigated, and the N-Biochar acted as a charge transfer channel to promote carrier separation and form Z-type heterojunctions. Moreover, the NCBN exhibited excellent performance (92.5%) in removing NOR, which maintained 70% degradation after four cycles. The main active substance of the NCBN was •O₂⁻, and the possible degradation pathways are provided. This work will provide a theoretical basis for the construction of heterojunction photo-catalysts.

Keywords: Z-scheme heterojunction; PCN/N-Biochar/BiVO₄; photocatalysis; norfloxacin

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MDPI and ACS Style

Li, Y.; Wang, W.; Chen, L.; Ma, H.; Lu, X.; Ma, H.; Liu, Z. Visible-Light-Driven Z-Type Pg-C₃N₄/Nitrogen Doped Biochar/BiVO₄ Photo-Catalysts for the Degradation of Norfloxacin. Materials 2024, 17, 1634. https://doi.org/10.3390/ma17071634

AMA Style

Li Y, Wang W, Chen L, Ma H, Lu X, Ma H, Liu Z. Visible-Light-Driven Z-Type Pg-C₃N₄/Nitrogen Doped Biochar/BiVO₄ Photo-Catalysts for the Degradation of Norfloxacin. Materials. 2024; 17(7):1634. https://doi.org/10.3390/ma17071634

Chicago/Turabian Style

Li, Yi, Wenyu Wang, Lei Chen, Huifang Ma, Xi Lu, Hongfang Ma, and Zhibao Liu. 2024. "Visible-Light-Driven Z-Type Pg-C₃N₄/Nitrogen Doped Biochar/BiVO₄ Photo-Catalysts for the Degradation of Norfloxacin" Materials 17, no. 7: 1634. https://doi.org/10.3390/ma17071634

APA Style

Li, Y., Wang, W., Chen, L., Ma, H., Lu, X., Ma, H., & Liu, Z. (2024). Visible-Light-Driven Z-Type Pg-C₃N₄/Nitrogen Doped Biochar/BiVO₄ Photo-Catalysts for the Degradation of Norfloxacin. Materials, 17(7), 1634. https://doi.org/10.3390/ma17071634

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Visible-Light-Driven Z-Type Pg-C₃N₄/Nitrogen Doped Biochar/BiVO₄ Photo-Catalysts for the Degradation of Norfloxacin

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