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Morphology engineering of type-II heterojunction nanoarrays for improved sonophotocatalytic capability

Sonophotocatalysis is one of the most significant outcomes of the exploration of the interaction between piezoelectric field and charge carriers, which exhibits potential applications in dye degradation, water splitting, and sterilization. Although several heterojunction catalysts have been applied...

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Detalles Bibliográficos
Autores principales: Guo, Lixia, Chen, Yaodong, Ren, Zeqian, Li, Xiu, Zhang, Qiwei, Wu, Jizhou, Li, Yuqing, Liu, Wenliang, Li, Peng, Fu, Yongming, Ma, Jie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8636864/
https://www.ncbi.nlm.nih.gov/pubmed/34839125
http://dx.doi.org/10.1016/j.ultsonch.2021.105849
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author Guo, Lixia
Chen, Yaodong
Ren, Zeqian
Li, Xiu
Zhang, Qiwei
Wu, Jizhou
Li, Yuqing
Liu, Wenliang
Li, Peng
Fu, Yongming
Ma, Jie
author_facet Guo, Lixia
Chen, Yaodong
Ren, Zeqian
Li, Xiu
Zhang, Qiwei
Wu, Jizhou
Li, Yuqing
Liu, Wenliang
Li, Peng
Fu, Yongming
Ma, Jie
author_sort Guo, Lixia
collection PubMed
description Sonophotocatalysis is one of the most significant outcomes of the exploration of the interaction between piezoelectric field and charge carriers, which exhibits potential applications in dye degradation, water splitting, and sterilization. Although several heterojunction catalysts have been applied to improve the sonophotocatalytic capability, the importance of the morphology on the sonophotocatalytic capability has not been emphasized. In this study, brush-like ZnO nanorod arrays are synthesized on a stainless-steel mesh and subsequently vulcanized into ZnO/ZnS core–shell nanorod arrays to investigate the sonophotocatalytic capability of the heterojunction. The sonophotocatalytic capability increases from 25.1% to 45.4% through vulcanization. Afterward, the ZnO/ZnS nanorods are etched to ZnO/ZnS nanotubes without affecting the crystallography and distribution of the ZnS nanoparticle shell, further improving the capability to 63.3%. The improvement can be ascribed to the coupling effect of the enhanced piezoelectric field and the reduced migration distance, which suppresses the recombination of photoexcited electron–hole pairs while transforming the morphology from nanorod to nanotube, as proven by the electron spin resonance test and numerical simulations. This study explores a novel approach of morphology engineering for enhancing the sonophotocatalytic capability of heterojunction nanoarrays.
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spelling pubmed-86368642021-12-08 Morphology engineering of type-II heterojunction nanoarrays for improved sonophotocatalytic capability Guo, Lixia Chen, Yaodong Ren, Zeqian Li, Xiu Zhang, Qiwei Wu, Jizhou Li, Yuqing Liu, Wenliang Li, Peng Fu, Yongming Ma, Jie Ultrason Sonochem Short Communication Sonophotocatalysis is one of the most significant outcomes of the exploration of the interaction between piezoelectric field and charge carriers, which exhibits potential applications in dye degradation, water splitting, and sterilization. Although several heterojunction catalysts have been applied to improve the sonophotocatalytic capability, the importance of the morphology on the sonophotocatalytic capability has not been emphasized. In this study, brush-like ZnO nanorod arrays are synthesized on a stainless-steel mesh and subsequently vulcanized into ZnO/ZnS core–shell nanorod arrays to investigate the sonophotocatalytic capability of the heterojunction. The sonophotocatalytic capability increases from 25.1% to 45.4% through vulcanization. Afterward, the ZnO/ZnS nanorods are etched to ZnO/ZnS nanotubes without affecting the crystallography and distribution of the ZnS nanoparticle shell, further improving the capability to 63.3%. The improvement can be ascribed to the coupling effect of the enhanced piezoelectric field and the reduced migration distance, which suppresses the recombination of photoexcited electron–hole pairs while transforming the morphology from nanorod to nanotube, as proven by the electron spin resonance test and numerical simulations. This study explores a novel approach of morphology engineering for enhancing the sonophotocatalytic capability of heterojunction nanoarrays. Elsevier 2021-11-25 /pmc/articles/PMC8636864/ /pubmed/34839125 http://dx.doi.org/10.1016/j.ultsonch.2021.105849 Text en © 2021 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Short Communication
Guo, Lixia
Chen, Yaodong
Ren, Zeqian
Li, Xiu
Zhang, Qiwei
Wu, Jizhou
Li, Yuqing
Liu, Wenliang
Li, Peng
Fu, Yongming
Ma, Jie
Morphology engineering of type-II heterojunction nanoarrays for improved sonophotocatalytic capability
title Morphology engineering of type-II heterojunction nanoarrays for improved sonophotocatalytic capability
title_full Morphology engineering of type-II heterojunction nanoarrays for improved sonophotocatalytic capability
title_fullStr Morphology engineering of type-II heterojunction nanoarrays for improved sonophotocatalytic capability
title_full_unstemmed Morphology engineering of type-II heterojunction nanoarrays for improved sonophotocatalytic capability
title_short Morphology engineering of type-II heterojunction nanoarrays for improved sonophotocatalytic capability
title_sort morphology engineering of type-ii heterojunction nanoarrays for improved sonophotocatalytic capability
topic Short Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8636864/
https://www.ncbi.nlm.nih.gov/pubmed/34839125
http://dx.doi.org/10.1016/j.ultsonch.2021.105849
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