Direct Z-scheme heterojunction of BiVO4microsphere/g-C3N4nanosheets for the efficient photocatalytic degradation of Rhodamine B

Wang, Zhentao; Iqbal, Waheed; Wang, Jingjing; Chang, Ninghui; Qin, Chuanguang

doi:10.1039/d3nj03974a

Cited by 4 publications

(1 citation statement)

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“…[29][30][31] In order to improve the photocatalytic performance of g-C 3 N 4 , researchers have developed various strategies to solve this problem, including mesoporous structure introduction, nanostructure engineering, semiconductor recombination, noble metal deposition and metal/non-metal doping. [32][33][34][35][36][37] Therefore, there is a great need to design g-C 3 N 4 -based composites to enhance photocatalytic performance.…”

Section: Introductionmentioning

confidence: 99%

Rational optimization of 2D Bi₂MoO₆ nanopiece@2D g‐C₃N₄ nanoflake composite for boosting photocatalytic performance of hydrogen evolution rate and organic dye removal

Wang,

Iqbal

et al. 2023

J of Chemical Tech & Biotech

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BACKGROUNDPreparing catalysts with heterojunction structures is a strategy to achieve efficient charge separation and transfer of charges to enhance photocatalytic activity of photocatalysts. To optimize the graphitic carbon nitride (g‐C3N4)‐based photocatalysts, Bi2MoO6@ 2D g‐C3N4 catalyst was prepared.RESULTS2D Bi2MoO6 nanopiece@2D g‐C3N4 nanoflake composites in different proportions were prepared by the hydrothermal method. The prepared materials were characterized by various modern instrumental analyses, and their photocatalytic ability to decompose water and degrade rhodamine B under visible light irradiation was tested. Compared with pure Bi2MoO6 nanopiece and g‐C3N4 nanoflake, the hydrogen evolution rate of Bi2MoO6 nanopiece@g‐C3N4 nanoflake (1:10) composite was highest, at 4847 μmol h−1 g−1. The composite (3:10) exhibited significantly enhanced photocatalytic rhodamine B degradation for organic dye removal due to the formation of an excellent heterojunction to improve the separation and migration efficiency of photogenerated carriers.CONCLUSIONO2− and •OH were the two main active species in the photocatalytic degradation of rhodamine B. Bi2MoO6 formed a heterojunction with g‐C3N4, which accelerated separation and migration efficiency, thereby enhancing the photocatalytic activity. © 2023 Society of Chemical Industry (SCI).

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Section: Introductionmentioning

confidence: 99%

Rational optimization of 2D Bi₂MoO₆ nanopiece@2D g‐C₃N₄ nanoflake composite for boosting photocatalytic performance of hydrogen evolution rate and organic dye removal

Wang,

Iqbal

et al. 2023

J of Chemical Tech & Biotech

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Construction of Ultrathin BiVO₄‐Au‐Cu₂O Nanosheets with Multiple Charge Transfer Paths for Effective Visible‐Light‐Driven Photocatalytic Degradation of Tetracycline

Wang,

Mirzaei,

Wang

et al. 2024

Small Methods

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In this study, unique BiVO4‐Au‐Cu2O nanosheets (NSs) are well designed and multiple charge transfer paths are consequently constructed. The X‐ray photoelectron spectroscopy measurement during a light off‐on‐off cycle and redox capability tests of the photo‐generated charge carriers confirmed the formation of Z‐scheme heterojunction, which can facilitate the charge carrier separation and transfer and maintain the original strong redox potentials of the respective component in the heterojunction. The ultrathin 2D structure of the BiVO4 NSs provided sufficient surface area for the photocatalytic reaction. The local surface plasmon resonance (LSPR) effect of the electron mediator, Au NPs, enhanced the light absorption and promoted the excitation of hot electrons. The multiple charge transfer paths effectively promoted the separation and transfer of the charge carrier. The synergism of the abovementioned properties endowed the BiVO4‐Au‐Cu2O NSs with satisfactory photocatalytic activity in the degradation of tetracycline (Tc) with a removal rate of ≈80% within 30 min under visible light irradiation. The degradation products during the photocatalysis are confirmed by using ultra‐high performance liquid chromatography‐mass spectrometry and the plausible degradation pathways of Tc are consequently proposed. This work paves a strategy for developing highly efficient visible‐light‐driven photocatalysts with multiple charge transfer paths for removing organic contaminants in water.

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Dye-sensitized n-n heterojunction {001}TiO2@NH2-MIL-101(Fe) for degradation of rhodamine B under visible light

Huang,

Li,

et al. 2025

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Direct Z-scheme heterojunction of BiVO₄microsphere/g-C₃N₄nanosheets for the efficient photocatalytic degradation of Rhodamine B

Abstract: Degrading dye waste using inexpensive synthetic photocatalysts is intriguing since it provides the dual advantage of treating water and managing waste simultaneously. There has been considerable interest in heterojunction construction...

Cited by 4 publications

References 53 publications

Rational optimization of 2D Bi₂MoO₆ nanopiece@2D g‐C₃N₄ nanoflake composite for boosting photocatalytic performance of hydrogen evolution rate and organic dye removal

Rational optimization of 2D Bi₂MoO₆ nanopiece@2D g‐C₃N₄ nanoflake composite for boosting photocatalytic performance of hydrogen evolution rate and organic dye removal

Construction of Ultrathin BiVO₄‐Au‐Cu₂O Nanosheets with Multiple Charge Transfer Paths for Effective Visible‐Light‐Driven Photocatalytic Degradation of Tetracycline

Dye-sensitized n-n heterojunction {001}TiO2@NH2-MIL-101(Fe) for degradation of rhodamine B under visible light

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Direct Z-scheme heterojunction of BiVO4microsphere/g-C3N4nanosheets for the efficient photocatalytic degradation of Rhodamine B

Abstract: Degrading dye waste using inexpensive synthetic photocatalysts is intriguing since it provides the dual advantage of treating water and managing waste simultaneously. There has been considerable interest in heterojunction construction...

Cited by 4 publications

References 53 publications

Rational optimization of 2D Bi2MoO6 nanopiece@2D g‐C3N4 nanoflake composite for boosting photocatalytic performance of hydrogen evolution rate and organic dye removal

Rational optimization of 2D Bi2MoO6 nanopiece@2D g‐C3N4 nanoflake composite for boosting photocatalytic performance of hydrogen evolution rate and organic dye removal

Construction of Ultrathin BiVO4‐Au‐Cu2O Nanosheets with Multiple Charge Transfer Paths for Effective Visible‐Light‐Driven Photocatalytic Degradation of Tetracycline

Dye-sensitized n-n heterojunction {001}TiO2@NH2-MIL-101(Fe) for degradation of rhodamine B under visible light

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Direct Z-scheme heterojunction of BiVO₄microsphere/g-C₃N₄nanosheets for the efficient photocatalytic degradation of Rhodamine B

Rational optimization of 2D Bi₂MoO₆ nanopiece@2D g‐C₃N₄ nanoflake composite for boosting photocatalytic performance of hydrogen evolution rate and organic dye removal

Rational optimization of 2D Bi₂MoO₆ nanopiece@2D g‐C₃N₄ nanoflake composite for boosting photocatalytic performance of hydrogen evolution rate and organic dye removal

Construction of Ultrathin BiVO₄‐Au‐Cu₂O Nanosheets with Multiple Charge Transfer Paths for Effective Visible‐Light‐Driven Photocatalytic Degradation of Tetracycline