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Facile Synthesis Bi(2)Te(3) Based Nanocomposites: Strategies for Enhancing Charge Carrier Separation to Improve Photocatalytic Activity

Varying structure Bi(2)Te(3)-based nanocomposite powders including pure Bi(2)Te(3), Bi(2)Te(3)/Bi core−shell, and Bi(2)Te(3)/AgBiTe(2) heterostructure were synthesized by hydrothermal synthesis using Bi(2)S(3) as the template and hydrazine as the reductant. Successful realization of Bi(2)Te(3)-based...

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Detalles Bibliográficos
Autores principales: Wu, Di, Guo, Jun, Ge, Zhen-Hua, Feng, Jing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8706007/
https://www.ncbi.nlm.nih.gov/pubmed/34947737
http://dx.doi.org/10.3390/nano11123390
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author Wu, Di
Guo, Jun
Ge, Zhen-Hua
Feng, Jing
author_facet Wu, Di
Guo, Jun
Ge, Zhen-Hua
Feng, Jing
author_sort Wu, Di
collection PubMed
description Varying structure Bi(2)Te(3)-based nanocomposite powders including pure Bi(2)Te(3), Bi(2)Te(3)/Bi core−shell, and Bi(2)Te(3)/AgBiTe(2) heterostructure were synthesized by hydrothermal synthesis using Bi(2)S(3) as the template and hydrazine as the reductant. Successful realization of Bi(2)Te(3)-based nanostructures were concluded from XRD, FESEM, and TEM. In this work, the improvement in the performance of the rhodamine B (RhB) decomposition efficiency under visible light was discussed. The Bi(2)Te(3)/AgBiTe(2) heterostructures revealed propitious photocatalytic performance ca. 90% after 60 min. The performance was over Bi(2)Te(3)/Bi core-shell nanostructures (ca. 40%) and more, exceeding pure Bi(2)Te(3) (ca. 5%). The reason could be scrutinized in terms of the heterojunction structure, improving the interfacial contact between Bi(2)Te(3) and AgBiTe(2) and enabling retardation in the recombination rate of the photogenerated charge carriers. A credible mechanism of the charge transfer process in the Bi(2)Te(3)/AgBiTe(2) heterostructures for the decomposition of an aqueous solution of RhB was also explicated. In addition, this work also investigated the stability and recyclability of a Bi(2)Te(3)/AgBiTe(2) heterojunction nanostructure photocatalyst. In addition, this paper anticipates that the results possess broad potential in the photocatalysis field for the design of a visible light functional and reusable heterojunction nanostructure photocatalyst.
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spelling pubmed-87060072021-12-25 Facile Synthesis Bi(2)Te(3) Based Nanocomposites: Strategies for Enhancing Charge Carrier Separation to Improve Photocatalytic Activity Wu, Di Guo, Jun Ge, Zhen-Hua Feng, Jing Nanomaterials (Basel) Article Varying structure Bi(2)Te(3)-based nanocomposite powders including pure Bi(2)Te(3), Bi(2)Te(3)/Bi core−shell, and Bi(2)Te(3)/AgBiTe(2) heterostructure were synthesized by hydrothermal synthesis using Bi(2)S(3) as the template and hydrazine as the reductant. Successful realization of Bi(2)Te(3)-based nanostructures were concluded from XRD, FESEM, and TEM. In this work, the improvement in the performance of the rhodamine B (RhB) decomposition efficiency under visible light was discussed. The Bi(2)Te(3)/AgBiTe(2) heterostructures revealed propitious photocatalytic performance ca. 90% after 60 min. The performance was over Bi(2)Te(3)/Bi core-shell nanostructures (ca. 40%) and more, exceeding pure Bi(2)Te(3) (ca. 5%). The reason could be scrutinized in terms of the heterojunction structure, improving the interfacial contact between Bi(2)Te(3) and AgBiTe(2) and enabling retardation in the recombination rate of the photogenerated charge carriers. A credible mechanism of the charge transfer process in the Bi(2)Te(3)/AgBiTe(2) heterostructures for the decomposition of an aqueous solution of RhB was also explicated. In addition, this work also investigated the stability and recyclability of a Bi(2)Te(3)/AgBiTe(2) heterojunction nanostructure photocatalyst. In addition, this paper anticipates that the results possess broad potential in the photocatalysis field for the design of a visible light functional and reusable heterojunction nanostructure photocatalyst. MDPI 2021-12-14 /pmc/articles/PMC8706007/ /pubmed/34947737 http://dx.doi.org/10.3390/nano11123390 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wu, Di
Guo, Jun
Ge, Zhen-Hua
Feng, Jing
Facile Synthesis Bi(2)Te(3) Based Nanocomposites: Strategies for Enhancing Charge Carrier Separation to Improve Photocatalytic Activity
title Facile Synthesis Bi(2)Te(3) Based Nanocomposites: Strategies for Enhancing Charge Carrier Separation to Improve Photocatalytic Activity
title_full Facile Synthesis Bi(2)Te(3) Based Nanocomposites: Strategies for Enhancing Charge Carrier Separation to Improve Photocatalytic Activity
title_fullStr Facile Synthesis Bi(2)Te(3) Based Nanocomposites: Strategies for Enhancing Charge Carrier Separation to Improve Photocatalytic Activity
title_full_unstemmed Facile Synthesis Bi(2)Te(3) Based Nanocomposites: Strategies for Enhancing Charge Carrier Separation to Improve Photocatalytic Activity
title_short Facile Synthesis Bi(2)Te(3) Based Nanocomposites: Strategies for Enhancing Charge Carrier Separation to Improve Photocatalytic Activity
title_sort facile synthesis bi(2)te(3) based nanocomposites: strategies for enhancing charge carrier separation to improve photocatalytic activity
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8706007/
https://www.ncbi.nlm.nih.gov/pubmed/34947737
http://dx.doi.org/10.3390/nano11123390
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