Structural, optical and photocatalytic characterization of ZnxCd1-xS solid solutions synthetized using a simple ultrasonic radiation method

[EN] A simple ultrasonic radiation method was employed for the preparation of zinc and cadmium sulfide solid solution (ZnxCd1-xS; x = 0-0.25 wt.%) with the aim to investigate its efficiency for H2 production via a visible light-driven water-splitting reaction. The catalyst characterization by X-ray...

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Autores: Morelos Medina, L. Fernando, Nava, Rufino, Cuán Hernández, M. de los Ángeles, Yáñez Soria, O. Said, Pawelec, Bárbara, Navarro Yerga, Rufino Manuel, Ornelas Gutiérrez, C. Elías
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/228271
Acceso en línea:http://hdl.handle.net/10261/228271
Access Level:acceso abierto
Palabra clave:ZnxCd1−xS
photocatalyst
H2 production
sonochemical coprecipitation
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spelling Structural, optical and photocatalytic characterization of ZnxCd1-xS solid solutions synthetized using a simple ultrasonic radiation methodMorelos Medina, L. FernandoNava, RufinoCuán Hernández, M. de los ÁngelesYáñez Soria, O. SaidPawelec, BárbaraNavarro Yerga, Rufino ManuelOrnelas Gutiérrez, C. ElíasZnxCd1−xSphotocatalystH2 productionsonochemical coprecipitation[EN] A simple ultrasonic radiation method was employed for the preparation of zinc and cadmium sulfide solid solution (ZnxCd1-xS; x = 0-0.25 wt.%) with the aim to investigate its efficiency for H2 production via a visible light-driven water-splitting reaction. The catalyst characterization by X-ray diffraction confirmed the formation of solid solution (ZnxCd1-xS) between CdS and ZnS phases. All catalysts exhibited hierarchical morphology (from SEM and TEM) formed by aggregated nanoparticles of ZnxCd1-xS solid solution with crystals showing mainly (111) planes of cubic CdS phase. The crystal size linearly decreased with an increase in Zn incorporation in the crystal lattice (from 4.37 nm to 3.72 nm). The ZnxCd1-xS photocatalysts showed a gradual increase in the H2 evolution, with an increase in the Zn concentration up to 0.2 wt.% making the most effective Zn0.2Cd0.8S catalyst toward H2 production. From the catalyst activity-structure correlation, it has been concluded that the twin-like CdS structure, the (111) plane and specific morphology are the main factors influencing the catalyst effectivity toward H2 production. All those factors compensated for the negative effect of an increase in band gap energy (Ebg) after ZnS incorporation into solid solution (from 2.21 eV to 2.34 eV). The effect of the catalyst morphology is discussed by comparing H2 evolution over unsupported and supported Zn0.2Cd0.8S solid solutions.This research was funded by FOFI-UAQ2018 project (México) and received partial funding from Spanish Ministry of Science, Innovation and Universities (CTQ2016-76505-C3-1 project).Molecular Diversity Preservation InternationalMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2021202120202021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/228271reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTQ2016-76505-C3-1http://dx.doi.org/10.3390/en13215603Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2282712026-05-22T06:33:51Z
dc.title.none.fl_str_mv Structural, optical and photocatalytic characterization of ZnxCd1-xS solid solutions synthetized using a simple ultrasonic radiation method
title Structural, optical and photocatalytic characterization of ZnxCd1-xS solid solutions synthetized using a simple ultrasonic radiation method
spellingShingle Structural, optical and photocatalytic characterization of ZnxCd1-xS solid solutions synthetized using a simple ultrasonic radiation method
Morelos Medina, L. Fernando
ZnxCd1−xS
photocatalyst
H2 production
sonochemical coprecipitation
title_short Structural, optical and photocatalytic characterization of ZnxCd1-xS solid solutions synthetized using a simple ultrasonic radiation method
title_full Structural, optical and photocatalytic characterization of ZnxCd1-xS solid solutions synthetized using a simple ultrasonic radiation method
title_fullStr Structural, optical and photocatalytic characterization of ZnxCd1-xS solid solutions synthetized using a simple ultrasonic radiation method
title_full_unstemmed Structural, optical and photocatalytic characterization of ZnxCd1-xS solid solutions synthetized using a simple ultrasonic radiation method
title_sort Structural, optical and photocatalytic characterization of ZnxCd1-xS solid solutions synthetized using a simple ultrasonic radiation method
dc.creator.none.fl_str_mv Morelos Medina, L. Fernando
Nava, Rufino
Cuán Hernández, M. de los Ángeles
Yáñez Soria, O. Said
Pawelec, Bárbara
Navarro Yerga, Rufino Manuel
Ornelas Gutiérrez, C. Elías
author Morelos Medina, L. Fernando
author_facet Morelos Medina, L. Fernando
Nava, Rufino
Cuán Hernández, M. de los Ángeles
Yáñez Soria, O. Said
Pawelec, Bárbara
Navarro Yerga, Rufino Manuel
Ornelas Gutiérrez, C. Elías
author_role author
author2 Nava, Rufino
Cuán Hernández, M. de los Ángeles
Yáñez Soria, O. Said
Pawelec, Bárbara
Navarro Yerga, Rufino Manuel
Ornelas Gutiérrez, C. Elías
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv ZnxCd1−xS
photocatalyst
H2 production
sonochemical coprecipitation
topic ZnxCd1−xS
photocatalyst
H2 production
sonochemical coprecipitation
description [EN] A simple ultrasonic radiation method was employed for the preparation of zinc and cadmium sulfide solid solution (ZnxCd1-xS; x = 0-0.25 wt.%) with the aim to investigate its efficiency for H2 production via a visible light-driven water-splitting reaction. The catalyst characterization by X-ray diffraction confirmed the formation of solid solution (ZnxCd1-xS) between CdS and ZnS phases. All catalysts exhibited hierarchical morphology (from SEM and TEM) formed by aggregated nanoparticles of ZnxCd1-xS solid solution with crystals showing mainly (111) planes of cubic CdS phase. The crystal size linearly decreased with an increase in Zn incorporation in the crystal lattice (from 4.37 nm to 3.72 nm). The ZnxCd1-xS photocatalysts showed a gradual increase in the H2 evolution, with an increase in the Zn concentration up to 0.2 wt.% making the most effective Zn0.2Cd0.8S catalyst toward H2 production. From the catalyst activity-structure correlation, it has been concluded that the twin-like CdS structure, the (111) plane and specific morphology are the main factors influencing the catalyst effectivity toward H2 production. All those factors compensated for the negative effect of an increase in band gap energy (Ebg) after ZnS incorporation into solid solution (from 2.21 eV to 2.34 eV). The effect of the catalyst morphology is discussed by comparing H2 evolution over unsupported and supported Zn0.2Cd0.8S solid solutions.
publishDate 2020
dc.date.none.fl_str_mv 2020
2021
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/228271
url http://hdl.handle.net/10261/228271
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTQ2016-76505-C3-1
http://dx.doi.org/10.3390/en13215603
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Molecular Diversity Preservation International
publisher.none.fl_str_mv Molecular Diversity Preservation International
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,228081

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