An experimental and theoretical investigation on the optical and photocatalytic properties of ZnS nanoparticles

Detalhes bibliográficos
Autor(a) principal: La Porta, F. A.
Data de Publicação: 2017
Outros Autores: Nogueira, A. E., Gracia, Lourdes, Pereira, W. S., Botelho, G., Mulinari, T. A. [UNESP], Andres, Juan, Longo, E. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.jpcs.2016.12.025
http://hdl.handle.net/11449/165480
Resumo: From the viewpoints of materials chemistry and physical chemistry, crystal structure directly determines the electronic structure and furthermore their optical and photocatalytic properties. Zinc sulfide (ZnS) nanoparticles (NPs) with tunable photoluminescence (PL) emission and high photocatalytic activity have been obtained by means of a microwave-assisted solvothermal (MAS) method using different precursors (i.e., zinc nitrate (ZN), zinc chloride (ZC), or zinc acetate (ZA)). The morphologies, optical properties, and electronic structures of the as-synthesized ZnS NPs were characterized by X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), Brunauer Emmett Teller (BET) isotherms for N-2 adsorption/desorption processes, diffuse reflectance spectroscopy (DRS), PL measurements and theoretical calculations. Density functional theory calculations were used to determine the geometries and electronic properties of bulk wurtzite (WZ) ZnS NPs and their (0001), (100), (1120), (1011), and (1012) surfaces. The dependence of the PL emission behavior of ZnS NPs on the precursor was elucidated by examining the energy band structure and density of states. The method for degradation of Rhodamine B (RhB) was used as a probe reaction to investigate the photocatalytic activity of the as-Synthesised ZnS NPs under UV light irradiation. The PL behavior as well as photocatalytic activities of ZnS NPs were attributed to specific features of the structural and electronic structures. Increased photocatalytic degradation was observed for samples synthesized using different precursors in the following order: ZA < ZC < ZN. These results indicated that samples synthesized with ZN present a greater percentage of exposed (0001) surface than those synthesized with the ZC and ZA. Furthermore, the possible photodegradation mechanism of the as-prepared ZnS NPs were also briefly discussed.
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spelling An experimental and theoretical investigation on the optical and photocatalytic properties of ZnS nanoparticlesZnSNanoparticlesMicrowave-assisted solvothermal methodDFTPhotocatalysisPhotoluminescenceFrom the viewpoints of materials chemistry and physical chemistry, crystal structure directly determines the electronic structure and furthermore their optical and photocatalytic properties. Zinc sulfide (ZnS) nanoparticles (NPs) with tunable photoluminescence (PL) emission and high photocatalytic activity have been obtained by means of a microwave-assisted solvothermal (MAS) method using different precursors (i.e., zinc nitrate (ZN), zinc chloride (ZC), or zinc acetate (ZA)). The morphologies, optical properties, and electronic structures of the as-synthesized ZnS NPs were characterized by X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), Brunauer Emmett Teller (BET) isotherms for N-2 adsorption/desorption processes, diffuse reflectance spectroscopy (DRS), PL measurements and theoretical calculations. Density functional theory calculations were used to determine the geometries and electronic properties of bulk wurtzite (WZ) ZnS NPs and their (0001), (100), (1120), (1011), and (1012) surfaces. The dependence of the PL emission behavior of ZnS NPs on the precursor was elucidated by examining the energy band structure and density of states. The method for degradation of Rhodamine B (RhB) was used as a probe reaction to investigate the photocatalytic activity of the as-Synthesised ZnS NPs under UV light irradiation. The PL behavior as well as photocatalytic activities of ZnS NPs were attributed to specific features of the structural and electronic structures. Increased photocatalytic degradation was observed for samples synthesized using different precursors in the following order: ZA < ZC < ZN. These results indicated that samples synthesized with ZN present a greater percentage of exposed (0001) surface than those synthesized with the ZC and ZA. Furthermore, the possible photodegradation mechanism of the as-prepared ZnS NPs were also briefly discussed.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Generalitat ValencianaMinisterio de Economia y Competitividad (Spain)Spanish Brazilian programUniv Tecnol Fed Parana, Dept Quim, Londrina, BrazilUniv Fed Sao Carlos, Dept Quim, Sao Carlos, SP, BrazilUniv Jaume 1, Dept Analyt & Phys Chem, Castellon de La Plana, SpainUniv Estadual Paulista, Inst Quim, Araraquara, BrazilUniv Estadual Paulista, Inst Quim, Araraquara, BrazilFAPESP: 2013/07296-2FAPESP: 2015/11917-8CNPq: 573636/2008-7CAPES: A104/2013Generalitat Valenciana: II/2014/022Generalitat Valenciana: ACOMP/2014/270Ministerio de Economia y Competitividad (Spain): CTQ2012-36253-C03-02Spanish Brazilian program: PHB2009-0065-PCSpanish Brazilian program: PHBP14/00020Elsevier B.V.Univ Tecnol Fed ParanaUniversidade Federal de São Carlos (UFSCar)Univ Jaume 1Universidade Estadual Paulista (Unesp)La Porta, F. A.Nogueira, A. E.Gracia, LourdesPereira, W. S.Botelho, G.Mulinari, T. A. [UNESP]Andres, JuanLongo, E. [UNESP]2018-11-28T03:51:19Z2018-11-28T03:51:19Z2017-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article179-189application/pdfhttp://dx.doi.org/10.1016/j.jpcs.2016.12.025Journal Of Physics And Chemistry Of Solids. Oxford: Pergamon-elsevier Science Ltd, v. 103, p. 179-189, 2017.0022-3697http://hdl.handle.net/11449/16548010.1016/j.jpcs.2016.12.025WOS:000393935000026WOS000393935000026.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal Of Physics And Chemistry Of Solids0,594info:eu-repo/semantics/openAccess2023-10-08T06:07:37Zoai:repositorio.unesp.br:11449/165480Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:21:19.680631Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv An experimental and theoretical investigation on the optical and photocatalytic properties of ZnS nanoparticles
title An experimental and theoretical investigation on the optical and photocatalytic properties of ZnS nanoparticles
spellingShingle An experimental and theoretical investigation on the optical and photocatalytic properties of ZnS nanoparticles
La Porta, F. A.
ZnS
Nanoparticles
Microwave-assisted solvothermal method
DFT
Photocatalysis
Photoluminescence
title_short An experimental and theoretical investigation on the optical and photocatalytic properties of ZnS nanoparticles
title_full An experimental and theoretical investigation on the optical and photocatalytic properties of ZnS nanoparticles
title_fullStr An experimental and theoretical investigation on the optical and photocatalytic properties of ZnS nanoparticles
title_full_unstemmed An experimental and theoretical investigation on the optical and photocatalytic properties of ZnS nanoparticles
title_sort An experimental and theoretical investigation on the optical and photocatalytic properties of ZnS nanoparticles
author La Porta, F. A.
author_facet La Porta, F. A.
Nogueira, A. E.
Gracia, Lourdes
Pereira, W. S.
Botelho, G.
Mulinari, T. A. [UNESP]
Andres, Juan
Longo, E. [UNESP]
author_role author
author2 Nogueira, A. E.
Gracia, Lourdes
Pereira, W. S.
Botelho, G.
Mulinari, T. A. [UNESP]
Andres, Juan
Longo, E. [UNESP]
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Univ Tecnol Fed Parana
Universidade Federal de São Carlos (UFSCar)
Univ Jaume 1
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv La Porta, F. A.
Nogueira, A. E.
Gracia, Lourdes
Pereira, W. S.
Botelho, G.
Mulinari, T. A. [UNESP]
Andres, Juan
Longo, E. [UNESP]
dc.subject.por.fl_str_mv ZnS
Nanoparticles
Microwave-assisted solvothermal method
DFT
Photocatalysis
Photoluminescence
topic ZnS
Nanoparticles
Microwave-assisted solvothermal method
DFT
Photocatalysis
Photoluminescence
description From the viewpoints of materials chemistry and physical chemistry, crystal structure directly determines the electronic structure and furthermore their optical and photocatalytic properties. Zinc sulfide (ZnS) nanoparticles (NPs) with tunable photoluminescence (PL) emission and high photocatalytic activity have been obtained by means of a microwave-assisted solvothermal (MAS) method using different precursors (i.e., zinc nitrate (ZN), zinc chloride (ZC), or zinc acetate (ZA)). The morphologies, optical properties, and electronic structures of the as-synthesized ZnS NPs were characterized by X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), Brunauer Emmett Teller (BET) isotherms for N-2 adsorption/desorption processes, diffuse reflectance spectroscopy (DRS), PL measurements and theoretical calculations. Density functional theory calculations were used to determine the geometries and electronic properties of bulk wurtzite (WZ) ZnS NPs and their (0001), (100), (1120), (1011), and (1012) surfaces. The dependence of the PL emission behavior of ZnS NPs on the precursor was elucidated by examining the energy band structure and density of states. The method for degradation of Rhodamine B (RhB) was used as a probe reaction to investigate the photocatalytic activity of the as-Synthesised ZnS NPs under UV light irradiation. The PL behavior as well as photocatalytic activities of ZnS NPs were attributed to specific features of the structural and electronic structures. Increased photocatalytic degradation was observed for samples synthesized using different precursors in the following order: ZA < ZC < ZN. These results indicated that samples synthesized with ZN present a greater percentage of exposed (0001) surface than those synthesized with the ZC and ZA. Furthermore, the possible photodegradation mechanism of the as-prepared ZnS NPs were also briefly discussed.
publishDate 2017
dc.date.none.fl_str_mv 2017-04-01
2018-11-28T03:51:19Z
2018-11-28T03:51:19Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.jpcs.2016.12.025
Journal Of Physics And Chemistry Of Solids. Oxford: Pergamon-elsevier Science Ltd, v. 103, p. 179-189, 2017.
0022-3697
http://hdl.handle.net/11449/165480
10.1016/j.jpcs.2016.12.025
WOS:000393935000026
WOS000393935000026.pdf
url http://dx.doi.org/10.1016/j.jpcs.2016.12.025
http://hdl.handle.net/11449/165480
identifier_str_mv Journal Of Physics And Chemistry Of Solids. Oxford: Pergamon-elsevier Science Ltd, v. 103, p. 179-189, 2017.
0022-3697
10.1016/j.jpcs.2016.12.025
WOS:000393935000026
WOS000393935000026.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal Of Physics And Chemistry Of Solids
0,594
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 179-189
application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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