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Dual functional WO(3)/BiVO(4) heterostructures for efficient photoelectrochemical water splitting and glycerol degradation

Dual functional heterojunctions of tungsten oxide and bismuth vanadate (WO(3)/BiVO(4)) photoanodes are developed and their applications in photoelectrochemical (PEC) water splitting and mineralization of glycerol are demonstrated. The thin-film WO(3)/BiVO(4) photoelectrode was fabricated by a facile...

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Autores principales: Peerakiatkhajohn, Piangjai, Yun, Jung-Ho, Butburee, Teera, Lyu, Miaoqiang, Takoon, Chawalit, Thaweesak, Supphasin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10285356/
https://www.ncbi.nlm.nih.gov/pubmed/37362599
http://dx.doi.org/10.1039/d3ra02691d
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author Peerakiatkhajohn, Piangjai
Yun, Jung-Ho
Butburee, Teera
Lyu, Miaoqiang
Takoon, Chawalit
Thaweesak, Supphasin
author_facet Peerakiatkhajohn, Piangjai
Yun, Jung-Ho
Butburee, Teera
Lyu, Miaoqiang
Takoon, Chawalit
Thaweesak, Supphasin
author_sort Peerakiatkhajohn, Piangjai
collection PubMed
description Dual functional heterojunctions of tungsten oxide and bismuth vanadate (WO(3)/BiVO(4)) photoanodes are developed and their applications in photoelectrochemical (PEC) water splitting and mineralization of glycerol are demonstrated. The thin-film WO(3)/BiVO(4) photoelectrode was fabricated by a facile hydrothermal method. The morphology, chemical composition, crystalline structure, chemical state, and optical absorption properties of the WO(3)/BiVO(4) photoelectrodes were characterized systematically. The WO(3)/BiVO(4) photoelectrode exhibits a good distribution of elements and a well-crystalline monoclinic WO(3) and monoclinic scheelite BiVO(4). The light-absorption spectrum of the WO(3)/BiVO(4) photoelectrodes reveals a broad absorption band in the visible light region with a maximum absorption of around 520 nm. The dual functional WO(3)/BiVO(4) photoelectrodes achieved a high photocurrent density of 6.85 mA cm(−2), which is 2.8 times higher than that of the pristine WO(3) photoelectrode in the presence of a mixture of 0.5 M Na(2)SO(4) and 0.5 M glycerol electrolyte under AM 1.5 G (100 mW cm(−2)) illumination. The superior PEC performance of the WO(3)/BiVO(4) photoelectrode was attributed to the synergistic effects of the superior crystal structure, light absorption, and efficient charge separation. Simultaneously, glycerol plays an essential role in increasing the efficiency of hydrogen production by suppressing charge recombination in the water redox reaction. Moreover, the WO(3)/BiVO(4) photoelectrode shows the total organic carbon (TOC) removal efficiency of glycerol at about 82% at 120 min. Notably, the WO(3)/BiVO(4) photoelectrode can be a promising photoelectrode for simultaneous hydrogen production and mineralization of glycerol with a simple, economical, and environmentally friendly approach.
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spelling pubmed-102853562023-06-23 Dual functional WO(3)/BiVO(4) heterostructures for efficient photoelectrochemical water splitting and glycerol degradation Peerakiatkhajohn, Piangjai Yun, Jung-Ho Butburee, Teera Lyu, Miaoqiang Takoon, Chawalit Thaweesak, Supphasin RSC Adv Chemistry Dual functional heterojunctions of tungsten oxide and bismuth vanadate (WO(3)/BiVO(4)) photoanodes are developed and their applications in photoelectrochemical (PEC) water splitting and mineralization of glycerol are demonstrated. The thin-film WO(3)/BiVO(4) photoelectrode was fabricated by a facile hydrothermal method. The morphology, chemical composition, crystalline structure, chemical state, and optical absorption properties of the WO(3)/BiVO(4) photoelectrodes were characterized systematically. The WO(3)/BiVO(4) photoelectrode exhibits a good distribution of elements and a well-crystalline monoclinic WO(3) and monoclinic scheelite BiVO(4). The light-absorption spectrum of the WO(3)/BiVO(4) photoelectrodes reveals a broad absorption band in the visible light region with a maximum absorption of around 520 nm. The dual functional WO(3)/BiVO(4) photoelectrodes achieved a high photocurrent density of 6.85 mA cm(−2), which is 2.8 times higher than that of the pristine WO(3) photoelectrode in the presence of a mixture of 0.5 M Na(2)SO(4) and 0.5 M glycerol electrolyte under AM 1.5 G (100 mW cm(−2)) illumination. The superior PEC performance of the WO(3)/BiVO(4) photoelectrode was attributed to the synergistic effects of the superior crystal structure, light absorption, and efficient charge separation. Simultaneously, glycerol plays an essential role in increasing the efficiency of hydrogen production by suppressing charge recombination in the water redox reaction. Moreover, the WO(3)/BiVO(4) photoelectrode shows the total organic carbon (TOC) removal efficiency of glycerol at about 82% at 120 min. Notably, the WO(3)/BiVO(4) photoelectrode can be a promising photoelectrode for simultaneous hydrogen production and mineralization of glycerol with a simple, economical, and environmentally friendly approach. The Royal Society of Chemistry 2023-06-22 /pmc/articles/PMC10285356/ /pubmed/37362599 http://dx.doi.org/10.1039/d3ra02691d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Peerakiatkhajohn, Piangjai
Yun, Jung-Ho
Butburee, Teera
Lyu, Miaoqiang
Takoon, Chawalit
Thaweesak, Supphasin
Dual functional WO(3)/BiVO(4) heterostructures for efficient photoelectrochemical water splitting and glycerol degradation
title Dual functional WO(3)/BiVO(4) heterostructures for efficient photoelectrochemical water splitting and glycerol degradation
title_full Dual functional WO(3)/BiVO(4) heterostructures for efficient photoelectrochemical water splitting and glycerol degradation
title_fullStr Dual functional WO(3)/BiVO(4) heterostructures for efficient photoelectrochemical water splitting and glycerol degradation
title_full_unstemmed Dual functional WO(3)/BiVO(4) heterostructures for efficient photoelectrochemical water splitting and glycerol degradation
title_short Dual functional WO(3)/BiVO(4) heterostructures for efficient photoelectrochemical water splitting and glycerol degradation
title_sort dual functional wo(3)/bivo(4) heterostructures for efficient photoelectrochemical water splitting and glycerol degradation
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10285356/
https://www.ncbi.nlm.nih.gov/pubmed/37362599
http://dx.doi.org/10.1039/d3ra02691d
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