Nanozyme-coupled photoelectrocatalytic system based on peroxidase-mimetic BiOI cathode and WO3 photoanode for efficient degradation of 3-chlorophenol

Li, Shiquan; Liu, Jianqiao; Liu, Xuqiao; Yan, Kai; Zhang, Jingdong

doi:10.1016/j.electacta.2024.144058

Electrochimica Acta

2024

DOI: 10.1016/j.electacta.2024.144058

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Nanozyme-coupled photoelectrocatalytic system based on peroxidase-mimetic BiOI cathode and WO3 photoanode for efficient degradation of 3-chlorophenol

Shiquan Li,

Jianqiao Liu,

Xuqiao Liu

et al.

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Cited by 3 publications

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Tuning Surface Chemistry in 2D Layered BiOI by Facile Liquid‐Phase Exfoliation for Enhanced Photoelectrocatalytic Oxygen Evolution

Wang,

Gallego,

Pozzati

et al. 2024

Small Structures

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BiOI is a promising photoelectrocatalyst for oxidation reactions. However, the limited photoelectrocatalytic (PEC) activity necessitates the development of new strategies to modify its surface chemistry and thus enhance functional properties. Herein, we present a simple method to increase photocurrent in a BiOI‐based photoanode by exfoliating microspheres of the oxyhalide produced through hydrothermal synthesis. Following exfoliation in isopropanol, the resulting layered BiOI‐based colloid contains a greater variety of species, including Bi2O2CO3, I3−, IO3−, Bi5+, and hydroxides, compared to the original BiOI. These additional species do not directly enhance the PEC oxygen evolution reaction (OER) performance. Instead, they are consumed or converted during PEC OER, resulting in more active sites on the photoelectrode and reduced resistance, which ultimately improves the water oxidation performance of the exfoliated BiOI. Over long‐term chronoamperometry, the exfoliated BiOI demonstrates a photocurrent twice as high as that of the BiOI microspheres. Analysis of the species after PEC OER reveals that the combination of IO3−, Bi5+, and I3− species on the BiOI is beneficial for charge transfer, thus enhancing the intrinsic PEC properties of the BiOI. This study offers new insights into the role of surface chemistry in determining PEC performance, aiding the optimization of 2D materials‐based photoelectrocatalysts.

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Tuning Surface Chemistry in 2D Layered BiOI by Facile Liquid‐Phase Exfoliation for Enhanced Photoelectrocatalytic Oxygen Evolution

Wang,

Gallego,

Pozzati

et al. 2024

Small Structures

View full text Add to dashboard Cite

show abstract

Advancing nanoarchitectures of 2D WO3/MXene photoanode for enhanced photoelectrocatalytic oxidation of phenol and arsenic in synthetic wastewater

Palanisamy,

et al. 2024

Environmental Research

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Integration of Ag3PO4/WO3 photoanode with bifunctional CuO cathode exhibiting photocatalytic and peroxidase-mimetic properties for nanozyme-coupled photoelectrocatalytic degradation of persistent pollutant

Yan,

Li,

Liu

et al. 2025

Journal of Colloid and Interface Science

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Nanozyme-coupled photoelectrocatalytic system based on peroxidase-mimetic BiOI cathode and WO3 photoanode for efficient degradation of 3-chlorophenol

Cited by 3 publications

References 57 publications

Tuning Surface Chemistry in 2D Layered BiOI by Facile Liquid‐Phase Exfoliation for Enhanced Photoelectrocatalytic Oxygen Evolution

Tuning Surface Chemistry in 2D Layered BiOI by Facile Liquid‐Phase Exfoliation for Enhanced Photoelectrocatalytic Oxygen Evolution

Advancing nanoarchitectures of 2D WO3/MXene photoanode for enhanced photoelectrocatalytic oxidation of phenol and arsenic in synthetic wastewater

Integration of Ag3PO4/WO3 photoanode with bifunctional CuO cathode exhibiting photocatalytic and peroxidase-mimetic properties for nanozyme-coupled photoelectrocatalytic degradation of persistent pollutant

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