Mixed metal oxide Bi2O3/Bi2WO6 thin films for the photoelectrocatalytic degradation of histamine

Alejandro Aranda-Aguirre; Juan Montes de Oca; Alberto Corzo; Sergi Garcia-Segura; Hugo Alarcon

doi:10.1016/j.jelechem.2022.116528

Mixed metal oxide Bi₂O₃/Bi₂WO₆ thin films for the photoelectrocatalytic degradation of histamine

Alejandro Aranda-Aguirre, Juan Montes de Oca, Alberto Corzo, Sergi Garcia-Segura, Hugo Alarcon

Engineering, Ira A. Fulton Schools of (IAFSE)

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Photoelectrocatalytic technologies emerge as competitive strategy to manage increasing histamine concentrations. This work explores the synergistic benefits induced in the formation of mixed oxide semiconductor in solid solution. Photoelectrocatalytic films of Bi₂O₃, WO₃, and their hybrid metal mixed oxide composition Bi₂O₃/Bi₂WO₆ were synthesized and characterized. Results demonstrate that Bi₂O₃/Bi₂WO₆ structure increases stability of charge carriers and enhances degradation performance. Applied bias potential was identified as driving variable that induces effective charge carrier stabilization for accelerated degradation of histamine in aqueous solution. Scavenger experiments identified ^•OH and O₂^•- as the main oxidant species produced during photoelectrocatalytic treatment.

Original language	English (US)
Article number	116528
Journal	Journal of Electroanalytical Chemistry
Volume	919
DOIs	https://doi.org/10.1016/j.jelechem.2022.116528
State	Published - Aug 15 2022

Keywords

Bismuth oxide (BiO)
Electrochemical advanced oxidation processes
Electrochemical water treatment
Nitrogenous organic compounds
Tungsten oxide (WO)

ASJC Scopus subject areas

Analytical Chemistry
General Chemical Engineering
Electrochemistry

Access to Document

10.1016/j.jelechem.2022.116528

Cite this

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title = "Mixed metal oxide Bi2O3/Bi2WO6 thin films for the photoelectrocatalytic degradation of histamine",

abstract = "Photoelectrocatalytic technologies emerge as competitive strategy to manage increasing histamine concentrations. This work explores the synergistic benefits induced in the formation of mixed oxide semiconductor in solid solution. Photoelectrocatalytic films of Bi2O3, WO3, and their hybrid metal mixed oxide composition Bi2O3/Bi2WO6 were synthesized and characterized. Results demonstrate that Bi2O3/Bi2WO6 structure increases stability of charge carriers and enhances degradation performance. Applied bias potential was identified as driving variable that induces effective charge carrier stabilization for accelerated degradation of histamine in aqueous solution. Scavenger experiments identified •OH and O2•- as the main oxidant species produced during photoelectrocatalytic treatment.",

keywords = "Bismuth oxide (BiO), Electrochemical advanced oxidation processes, Electrochemical water treatment, Nitrogenous organic compounds, Tungsten oxide (WO)",

author = "Alejandro Aranda-Aguirre and {de Oca}, {Juan Montes} and Alberto Corzo and Sergi Garcia-Segura and Hugo Alarcon",

note = "Funding Information: This work was supported by the Research Institute of the Universidad de Lima - IDIC-project . Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

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AU - de Oca, Juan Montes

AU - Corzo, Alberto

AU - Garcia-Segura, Sergi

AU - Alarcon, Hugo

PY - 2022/8/15

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AB - Photoelectrocatalytic technologies emerge as competitive strategy to manage increasing histamine concentrations. This work explores the synergistic benefits induced in the formation of mixed oxide semiconductor in solid solution. Photoelectrocatalytic films of Bi2O3, WO3, and their hybrid metal mixed oxide composition Bi2O3/Bi2WO6 were synthesized and characterized. Results demonstrate that Bi2O3/Bi2WO6 structure increases stability of charge carriers and enhances degradation performance. Applied bias potential was identified as driving variable that induces effective charge carrier stabilization for accelerated degradation of histamine in aqueous solution. Scavenger experiments identified •OH and O2•- as the main oxidant species produced during photoelectrocatalytic treatment.

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KW - Nitrogenous organic compounds

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