Preparation of BiVO<sub>4</sub>/GO composites and their photocatalytic performance

Wang Li; Shi Zhaozhong; Cui Weina; Zhou Hua; Zhan Guirong; Liu Jin

doi:10.7513/j.issn.1004-7638.2024.02.008

Volume 45 Issue 2

Feb. 2024

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Wang Li, Shi Zhaozhong, Cui Weina, Zhou Hua, Zhan Guirong, Liu Jin. Preparation of BiVO4/GO composites and their photocatalytic performance[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(2): 51-57. doi: 10.7513/j.issn.1004-7638.2024.02.008

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Wang Li, Shi Zhaozhong, Cui Weina, Zhou Hua, Zhan Guirong, Liu Jin. Preparation of BiVO₄/GO composites and their photocatalytic performance[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(2): 51-57. doi: 10.7513/j.issn.1004-7638.2024.02.008

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Preparation of BiVO₄/GO composites and their photocatalytic performance

doi: 10.7513/j.issn.1004-7638.2024.02.008

Wang Li^{1, 2, 3
,},
Shi Zhaozhong²,
Cui Weina^{3, 4},
Zhou Hua^{3, 4},
Zhan Guirong^{1, 2},
Liu Jin^{3, 4}

1.
School of Material and Chemical Engineering, Kaifeng University, Kaifeng 475004, Henan China
2.
Henan Engineering Research Center of Advanced Materials and Green Process, Kaifeng 475004, Henan, China
3.
Henan Key Laboratory for Advanced Silicon Carbide Materials, Kaifeng 475004, Henan, China
4.
Research Center of Functional Materials, Kaifeng University, Kaifeng 475004, Henan, China

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Received Date: 2023-11-20
Available Online: 2024-04-30
Publish Date: 2024-04-30

Abstract

Abstract

Bismuth vanadate (BiVO₄) has attracted considerable attention in photocatalysis due to its cheap and easy availability, mild and simple preparation conditions, narrow bandgap (～2.4 eV), outstanding photoresponse ability, and excellent stability. A fishbone like bismuth vanadate/graphene (BiVO₄/GO) composite photocatalytic material was successfully prepared using bismuth nitrate and ammonium metavanadate as raw materials by hydrothermal method. The structure and morphology of the composite photocatalytic material were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM), and its degradation activity for acyclovir under simulated sunlight was investigated. SEM and TEM show that BiVO₄ has a unique fishbone like structure, with GO layers interspersed between them, effectively connecting the BiVO₄ nanostructures. The addition of GO has changed the original pure monoclinic scheelite structure of BiVO₄. The degradation efficiency of BiVO₄/GO (BG-3) for acyclovir (AC) is as high as 97.23%, and the degradation efficiency can still reach 87.15% after 5 cycles, indicating that the catalyst has good cycling activity. The Langmuir-Hinshelwood (L-H) first-order kinetic model equation was used to fit the catalytic degradation process, and the correlation coefficients R² were all higher than 0.97, indicating that the L-H first-order kinetic model equation is very suitable for fitting the catalytic degradation process.
- BiVO₄,
- GO,
- nanocomposite materials,
- photocatalysis,
- acyclovir

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References(23)

References

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