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BiVO(4)/Fe(2)O(3)/ZnFe(2)O(4); triple heterojunction for an enhanced PEC performance for hydrogen generation
n/n/n triple heterojunction photoanodes made up of Zr:W-BiVO(4), Fe(2)O(3), and ZnFe(2)O(4) metal oxides are fabricated through a simplistic spray pyrolysis method. Use of Zr and W as dopants in BiVO(4) plays an important role as Zr increases the carrier density and W reduces the charge recombinatio...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9041422/ https://www.ncbi.nlm.nih.gov/pubmed/35496341 http://dx.doi.org/10.1039/d2ra00900e |
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author | Saxena, Sakshi Verma, Anuradha Asha, Kumari Biswas, Neeraj Kumar Srivastav, Anupam Satsangi, Vibha Rani Shrivastav, Rohit Dass, Sahab |
author_facet | Saxena, Sakshi Verma, Anuradha Asha, Kumari Biswas, Neeraj Kumar Srivastav, Anupam Satsangi, Vibha Rani Shrivastav, Rohit Dass, Sahab |
author_sort | Saxena, Sakshi |
collection | PubMed |
description | n/n/n triple heterojunction photoanodes made up of Zr:W-BiVO(4), Fe(2)O(3), and ZnFe(2)O(4) metal oxides are fabricated through a simplistic spray pyrolysis method. Use of Zr and W as dopants in BiVO(4) plays an important role as Zr increases the carrier density and W reduces the charge recombination. Further, Fe(2)O(3) and ZnFe(2)O(4) serve as a protective layer for Zr:W-BiVO(4), which augmented the photoelectrochemical performance and achieved a 1.90% conversion efficiency in the triple heterojunction. XRD measurements display the crystalline nature and reduction in particle size due to strain in the sample, UV-vis absorbance shows an extended absorption towards the visible region and the FE-SEM imaging confirms the successful deposition of ZnFe(2)O(4) over BiVO(4)/Fe(2)O(3). By analyzing the band edge position, it was observed that on formation, the triple heterojunction not only suppresses the charge carrier recombination but also utilizes the band edge offset for the water splitting reaction using solar energy. |
format | Online Article Text |
id | pubmed-9041422 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90414222022-04-28 BiVO(4)/Fe(2)O(3)/ZnFe(2)O(4); triple heterojunction for an enhanced PEC performance for hydrogen generation Saxena, Sakshi Verma, Anuradha Asha, Kumari Biswas, Neeraj Kumar Srivastav, Anupam Satsangi, Vibha Rani Shrivastav, Rohit Dass, Sahab RSC Adv Chemistry n/n/n triple heterojunction photoanodes made up of Zr:W-BiVO(4), Fe(2)O(3), and ZnFe(2)O(4) metal oxides are fabricated through a simplistic spray pyrolysis method. Use of Zr and W as dopants in BiVO(4) plays an important role as Zr increases the carrier density and W reduces the charge recombination. Further, Fe(2)O(3) and ZnFe(2)O(4) serve as a protective layer for Zr:W-BiVO(4), which augmented the photoelectrochemical performance and achieved a 1.90% conversion efficiency in the triple heterojunction. XRD measurements display the crystalline nature and reduction in particle size due to strain in the sample, UV-vis absorbance shows an extended absorption towards the visible region and the FE-SEM imaging confirms the successful deposition of ZnFe(2)O(4) over BiVO(4)/Fe(2)O(3). By analyzing the band edge position, it was observed that on formation, the triple heterojunction not only suppresses the charge carrier recombination but also utilizes the band edge offset for the water splitting reaction using solar energy. The Royal Society of Chemistry 2022-04-26 /pmc/articles/PMC9041422/ /pubmed/35496341 http://dx.doi.org/10.1039/d2ra00900e Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Saxena, Sakshi Verma, Anuradha Asha, Kumari Biswas, Neeraj Kumar Srivastav, Anupam Satsangi, Vibha Rani Shrivastav, Rohit Dass, Sahab BiVO(4)/Fe(2)O(3)/ZnFe(2)O(4); triple heterojunction for an enhanced PEC performance for hydrogen generation |
title | BiVO(4)/Fe(2)O(3)/ZnFe(2)O(4); triple heterojunction for an enhanced PEC performance for hydrogen generation |
title_full | BiVO(4)/Fe(2)O(3)/ZnFe(2)O(4); triple heterojunction for an enhanced PEC performance for hydrogen generation |
title_fullStr | BiVO(4)/Fe(2)O(3)/ZnFe(2)O(4); triple heterojunction for an enhanced PEC performance for hydrogen generation |
title_full_unstemmed | BiVO(4)/Fe(2)O(3)/ZnFe(2)O(4); triple heterojunction for an enhanced PEC performance for hydrogen generation |
title_short | BiVO(4)/Fe(2)O(3)/ZnFe(2)O(4); triple heterojunction for an enhanced PEC performance for hydrogen generation |
title_sort | bivo(4)/fe(2)o(3)/znfe(2)o(4); triple heterojunction for an enhanced pec performance for hydrogen generation |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9041422/ https://www.ncbi.nlm.nih.gov/pubmed/35496341 http://dx.doi.org/10.1039/d2ra00900e |
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