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...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Lixia Guo, Yaodong Chen, Zeqian Ren, Xiu Li, Qiwei Zhang, Jizhou Wu, Yuqing Li, Wenliang Liu, Peng Li, Yongming Fu, Jie Ma
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Sonophotocatalysis Morphology engineering Heterojunction Piezoelectric Nanoarray Chemistry QD1-999 Acoustics. Sound QC221-246
Acceso en línea:	https://doaj.org/article/48d3b077d7e245feabf2d9866844a8a7
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:48d3b077d7e245feabf2d9866844a8a7
record_format	dspace
spelling	oai:doaj.org-article:48d3b077d7e245feabf2d9866844a8a72021-11-28T04:29:18ZMorphology engineering of type-II heterojunction nanoarrays for improved sonophotocatalytic capability1350-417710.1016/j.ultsonch.2021.105849https://doaj.org/article/48d3b077d7e245feabf2d9866844a8a72021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1350417721003916https://doaj.org/toc/1350-4177Sonophotocatalysis 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.Lixia GuoYaodong ChenZeqian RenXiu LiQiwei ZhangJizhou WuYuqing LiWenliang LiuPeng LiYongming FuJie MaElsevierarticleSonophotocatalysisMorphology engineeringHeterojunctionPiezoelectricNanoarrayChemistryQD1-999Acoustics. SoundQC221-246ENUltrasonics Sonochemistry, Vol 81, Iss , Pp 105849- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Sonophotocatalysis Morphology engineering Heterojunction Piezoelectric Nanoarray Chemistry QD1-999 Acoustics. Sound QC221-246
spellingShingle	Sonophotocatalysis Morphology engineering Heterojunction Piezoelectric Nanoarray Chemistry QD1-999 Acoustics. Sound QC221-246 Lixia Guo Yaodong Chen Zeqian Ren Xiu Li Qiwei Zhang Jizhou Wu Yuqing Li Wenliang Liu Peng Li Yongming Fu Jie Ma Morphology engineering of type-II heterojunction nanoarrays for improved sonophotocatalytic capability
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.
format	article
author	Lixia Guo Yaodong Chen Zeqian Ren Xiu Li Qiwei Zhang Jizhou Wu Yuqing Li Wenliang Liu Peng Li Yongming Fu Jie Ma
author_facet	Lixia Guo Yaodong Chen Zeqian Ren Xiu Li Qiwei Zhang Jizhou Wu Yuqing Li Wenliang Liu Peng Li Yongming Fu Jie Ma
author_sort	Lixia Guo
title	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_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_sort	morphology engineering of type-ii heterojunction nanoarrays for improved sonophotocatalytic capability
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/48d3b077d7e245feabf2d9866844a8a7
work_keys_str_mv	AT lixiaguo morphologyengineeringoftypeiiheterojunctionnanoarraysforimprovedsonophotocatalyticcapability AT yaodongchen morphologyengineeringoftypeiiheterojunctionnanoarraysforimprovedsonophotocatalyticcapability AT zeqianren morphologyengineeringoftypeiiheterojunctionnanoarraysforimprovedsonophotocatalyticcapability AT xiuli morphologyengineeringoftypeiiheterojunctionnanoarraysforimprovedsonophotocatalyticcapability AT qiweizhang morphologyengineeringoftypeiiheterojunctionnanoarraysforimprovedsonophotocatalyticcapability AT jizhouwu morphologyengineeringoftypeiiheterojunctionnanoarraysforimprovedsonophotocatalyticcapability AT yuqingli morphologyengineeringoftypeiiheterojunctionnanoarraysforimprovedsonophotocatalyticcapability AT wenliangliu morphologyengineeringoftypeiiheterojunctionnanoarraysforimprovedsonophotocatalyticcapability AT pengli morphologyengineeringoftypeiiheterojunctionnanoarraysforimprovedsonophotocatalyticcapability AT yongmingfu morphologyengineeringoftypeiiheterojunctionnanoarraysforimprovedsonophotocatalyticcapability AT jiema morphologyengineeringoftypeiiheterojunctionnanoarraysforimprovedsonophotocatalyticcapability
_version_	1718408375622959104

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

Ejemplares similares