Effect of different synthesis methods on the morphology, optical behavior, and superior photocatalytic performances of Ag3PO4 sub-microcrystals using white-light-emitting diodes

Detalhes bibliográficos
Autor(a) principal: Cruz-Filho, J. F.
Data de Publicação: 2019
Outros Autores: Costa, T. M. S., Lima, M. S., Silva, L. J., Santos, R. S., Cavalcante, L. S., Longo, E. [UNESP], Luz Jr, G. E.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.jphotochem.2019.03.031
http://hdl.handle.net/11449/185733
Resumo: In this paper, we report on the superior photocatalytic properties of silver orthophosphate (Ag3PO4) sub-microcrystals prepared using different synthesis methods: precipitation (PM), precipitation-calcination (PM-C), and precipitation-hydrothermal (PM-H), on the degradation of Rhodamine B (RhB) cationic dye and methyl orange (MO) anionic dye using white-light-emitting diodes (WLEDs). The structure of the Ag3PO4 sub-microcrystals obtained was investigated by X-ray diffraction (XRD), Rietveld refinement, micro-Raman (M-Raman), and Fourier transform infrared (FT-IR) spectroscopy. The X-ray photoelectron spectroscopy (XPS) was used to investigate the surface chemical composition and states. The shape, average crystal size, and morphological changes were observed using field emission scanning electron microscopy (FE-SEM). The results indicated that all samples have cubic body-centered, P 43 n (218) space group, with the following crytallite size: PM (103.4 nm), PM-C (56.7 nm) and PM-H (123.8 nm). Also, it was observed the optical band gap values of 2.23, 2.15 and 2.16 eV of the samples PM, PM-C and PM-H, respectively. For both dyes, the PM-C sample has higher photodegradation efficiency (98%) and apparent quantum efficiency (phi(x) = 0.081) in relation to PM and PM-H samples. In addition, especially to RhB, the apparent quantum efficiency of samples practically remains unchanged by three photocatalytic cycles due to use of white light emitting diode (WLEDs) illumination.
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spelling Effect of different synthesis methods on the morphology, optical behavior, and superior photocatalytic performances of Ag3PO4 sub-microcrystals using white-light-emitting diodesAgPO4 microcrystalsRietveld refinementSuperior photocatalysisWLEDsIn this paper, we report on the superior photocatalytic properties of silver orthophosphate (Ag3PO4) sub-microcrystals prepared using different synthesis methods: precipitation (PM), precipitation-calcination (PM-C), and precipitation-hydrothermal (PM-H), on the degradation of Rhodamine B (RhB) cationic dye and methyl orange (MO) anionic dye using white-light-emitting diodes (WLEDs). The structure of the Ag3PO4 sub-microcrystals obtained was investigated by X-ray diffraction (XRD), Rietveld refinement, micro-Raman (M-Raman), and Fourier transform infrared (FT-IR) spectroscopy. The X-ray photoelectron spectroscopy (XPS) was used to investigate the surface chemical composition and states. The shape, average crystal size, and morphological changes were observed using field emission scanning electron microscopy (FE-SEM). The results indicated that all samples have cubic body-centered, P 43 n (218) space group, with the following crytallite size: PM (103.4 nm), PM-C (56.7 nm) and PM-H (123.8 nm). Also, it was observed the optical band gap values of 2.23, 2.15 and 2.16 eV of the samples PM, PM-C and PM-H, respectively. For both dyes, the PM-C sample has higher photodegradation efficiency (98%) and apparent quantum efficiency (phi(x) = 0.081) in relation to PM and PM-H samples. In addition, especially to RhB, the apparent quantum efficiency of samples practically remains unchanged by three photocatalytic cycles due to use of white light emitting diode (WLEDs) illumination.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)LIMAVFISMAT/UFPIUniv Estadual Piaui, PPGQ GERATEC, Rua Joao Cabral 2231,POB 381, BR-64002150 Teresina, PI, BrazilUniv Fed Piaui UFPI, Dept Quim DQ PPGQ, BR-64049550 Teresina, PI, BrazilUniv Estadual Paulista, Dept Fis Quim, BR-14800060 Araraquara, SP, BrazilUniv Estadual Paulista, Dept Fis Quim, BR-14800060 Araraquara, SP, BrazilCNPq: 307559/2015-7CNPq: 455864/2014-4Elsevier B.V.Univ Estadual PiauiUniv Fed Piaui UFPIUniversidade Estadual Paulista (Unesp)Cruz-Filho, J. F.Costa, T. M. S.Lima, M. S.Silva, L. J.Santos, R. S.Cavalcante, L. S.Longo, E. [UNESP]Luz Jr, G. E.2019-10-04T12:38:10Z2019-10-04T12:38:10Z2019-05-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article14-25http://dx.doi.org/10.1016/j.jphotochem.2019.03.031Journal Of Photochemistry And Photobiology A-chemistry. Lausanne: Elsevier Science Sa, v. 377, p. 14-25, 2019.1010-6030http://hdl.handle.net/11449/18573310.1016/j.jphotochem.2019.03.031WOS:000468714500003Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal Of Photochemistry And Photobiology A-chemistryinfo:eu-repo/semantics/openAccess2021-10-22T18:13:15Zoai:repositorio.unesp.br:11449/185733Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T18:13:15Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Effect of different synthesis methods on the morphology, optical behavior, and superior photocatalytic performances of Ag3PO4 sub-microcrystals using white-light-emitting diodes
title Effect of different synthesis methods on the morphology, optical behavior, and superior photocatalytic performances of Ag3PO4 sub-microcrystals using white-light-emitting diodes
spellingShingle Effect of different synthesis methods on the morphology, optical behavior, and superior photocatalytic performances of Ag3PO4 sub-microcrystals using white-light-emitting diodes
Cruz-Filho, J. F.
AgPO4 microcrystals
Rietveld refinement
Superior photocatalysis
WLEDs
title_short Effect of different synthesis methods on the morphology, optical behavior, and superior photocatalytic performances of Ag3PO4 sub-microcrystals using white-light-emitting diodes
title_full Effect of different synthesis methods on the morphology, optical behavior, and superior photocatalytic performances of Ag3PO4 sub-microcrystals using white-light-emitting diodes
title_fullStr Effect of different synthesis methods on the morphology, optical behavior, and superior photocatalytic performances of Ag3PO4 sub-microcrystals using white-light-emitting diodes
title_full_unstemmed Effect of different synthesis methods on the morphology, optical behavior, and superior photocatalytic performances of Ag3PO4 sub-microcrystals using white-light-emitting diodes
title_sort Effect of different synthesis methods on the morphology, optical behavior, and superior photocatalytic performances of Ag3PO4 sub-microcrystals using white-light-emitting diodes
author Cruz-Filho, J. F.
author_facet Cruz-Filho, J. F.
Costa, T. M. S.
Lima, M. S.
Silva, L. J.
Santos, R. S.
Cavalcante, L. S.
Longo, E. [UNESP]
Luz Jr, G. E.
author_role author
author2 Costa, T. M. S.
Lima, M. S.
Silva, L. J.
Santos, R. S.
Cavalcante, L. S.
Longo, E. [UNESP]
Luz Jr, G. E.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Univ Estadual Piaui
Univ Fed Piaui UFPI
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Cruz-Filho, J. F.
Costa, T. M. S.
Lima, M. S.
Silva, L. J.
Santos, R. S.
Cavalcante, L. S.
Longo, E. [UNESP]
Luz Jr, G. E.
dc.subject.por.fl_str_mv AgPO4 microcrystals
Rietveld refinement
Superior photocatalysis
WLEDs
topic AgPO4 microcrystals
Rietveld refinement
Superior photocatalysis
WLEDs
description In this paper, we report on the superior photocatalytic properties of silver orthophosphate (Ag3PO4) sub-microcrystals prepared using different synthesis methods: precipitation (PM), precipitation-calcination (PM-C), and precipitation-hydrothermal (PM-H), on the degradation of Rhodamine B (RhB) cationic dye and methyl orange (MO) anionic dye using white-light-emitting diodes (WLEDs). The structure of the Ag3PO4 sub-microcrystals obtained was investigated by X-ray diffraction (XRD), Rietveld refinement, micro-Raman (M-Raman), and Fourier transform infrared (FT-IR) spectroscopy. The X-ray photoelectron spectroscopy (XPS) was used to investigate the surface chemical composition and states. The shape, average crystal size, and morphological changes were observed using field emission scanning electron microscopy (FE-SEM). The results indicated that all samples have cubic body-centered, P 43 n (218) space group, with the following crytallite size: PM (103.4 nm), PM-C (56.7 nm) and PM-H (123.8 nm). Also, it was observed the optical band gap values of 2.23, 2.15 and 2.16 eV of the samples PM, PM-C and PM-H, respectively. For both dyes, the PM-C sample has higher photodegradation efficiency (98%) and apparent quantum efficiency (phi(x) = 0.081) in relation to PM and PM-H samples. In addition, especially to RhB, the apparent quantum efficiency of samples practically remains unchanged by three photocatalytic cycles due to use of white light emitting diode (WLEDs) illumination.
publishDate 2019
dc.date.none.fl_str_mv 2019-10-04T12:38:10Z
2019-10-04T12:38:10Z
2019-05-15
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.jphotochem.2019.03.031
Journal Of Photochemistry And Photobiology A-chemistry. Lausanne: Elsevier Science Sa, v. 377, p. 14-25, 2019.
1010-6030
http://hdl.handle.net/11449/185733
10.1016/j.jphotochem.2019.03.031
WOS:000468714500003
url http://dx.doi.org/10.1016/j.jphotochem.2019.03.031
http://hdl.handle.net/11449/185733
identifier_str_mv Journal Of Photochemistry And Photobiology A-chemistry. Lausanne: Elsevier Science Sa, v. 377, p. 14-25, 2019.
1010-6030
10.1016/j.jphotochem.2019.03.031
WOS:000468714500003
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal Of Photochemistry And Photobiology A-chemistry
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 14-25
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
_version_ 1797789810702680064

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