Effective strategy to coupling Zr-MOF/ZnO: Synthesis, morphology and photoelectrochemical properties evaluation
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.jssc.2020.121794 http://hdl.handle.net/11449/207886 |
Resumo: | Zr-MOF was coupled with ZnO particles by mechanical mixture followed by heat treatment at 400 °C. The Zr-MOF influence on the ZnO structure was investigated by means of X-ray diffraction (XRD), surface area analysis (BET), electron microscopy (SEM and TEM), spectroscopy (XPS) and photoelectrochemical experiment. The main phase of the synthesized samples well matched the hexagonal wurtzite structure of ZnO. The XPS analysis confirm the heterostructure formation between ZnO and Zr-MOF materials and shows that the sample with 25 wt% Zr-MOF (ZnO/MOF25) has the higher proportion of lattice oxygen compared to the pristine ZnO and the sample with 50 wt% Zr-MOF (ZnO/MOF50). The reduction in the oxygen vacancies in the ZnO/MOF25 sample supports the greater effectiveness of heterostructure formation in this sample. The results also indicated that the ZnO/MOF25 sample is a promising photoelectrode for solar cells. |
id |
UNSP_8a0672d131b107447f2b07eada0a3cd4 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/207886 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Effective strategy to coupling Zr-MOF/ZnO: Synthesis, morphology and photoelectrochemical properties evaluationMetal-organic frameworkPhotoanodeSolar cellZnOZr-MOFZr-MOF was coupled with ZnO particles by mechanical mixture followed by heat treatment at 400 °C. The Zr-MOF influence on the ZnO structure was investigated by means of X-ray diffraction (XRD), surface area analysis (BET), electron microscopy (SEM and TEM), spectroscopy (XPS) and photoelectrochemical experiment. The main phase of the synthesized samples well matched the hexagonal wurtzite structure of ZnO. The XPS analysis confirm the heterostructure formation between ZnO and Zr-MOF materials and shows that the sample with 25 wt% Zr-MOF (ZnO/MOF25) has the higher proportion of lattice oxygen compared to the pristine ZnO and the sample with 50 wt% Zr-MOF (ZnO/MOF50). The reduction in the oxygen vacancies in the ZnO/MOF25 sample supports the greater effectiveness of heterostructure formation in this sample. The results also indicated that the ZnO/MOF25 sample is a promising photoelectrode for solar cells.Department of Chemistry Universidade Estadual Paulista - Unesp, P.O. Box 473LRC - Institute of Chemistry Universidade Federal do Rio Grande do Sul - UFRGS, P.O. Box 15003LIEC – CDMF - Department of Chemistry Universidade Federal de São Carlos - UFSCar, P.O. Box 676Institute of Marine Sciences Universidade Federal de São Paulo - UNIFESPDepartment of Chemistry Universidade Estadual Paulista - Unesp, P.O. Box 473Universidade Estadual Paulista (Unesp)Universidade Federal do Rio Grande do Sul - UFRGSUniversidade Federal de São Carlos (UFSCar)Universidade Federal de São Paulo (UNIFESP)da Trindade, Letícia G. [UNESP]Borba, Katiúscia M.N.Trench, Aline B.Zanchet, LetíciaTeodoro, ViníciusPontes, Fenelon M.L. [UNESP]Longo, ElsonMazzo, Tatiana M.2021-06-25T11:02:43Z2021-06-25T11:02:43Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.jssc.2020.121794Journal of Solid State Chemistry, v. 293.1095-726X0022-4596http://hdl.handle.net/11449/20788610.1016/j.jssc.2020.1217942-s2.0-85093945391Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Solid State Chemistryinfo:eu-repo/semantics/openAccess2021-10-22T12:11:09Zoai:repositorio.unesp.br:11449/207886Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T12:11:09Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effective strategy to coupling Zr-MOF/ZnO: Synthesis, morphology and photoelectrochemical properties evaluation |
title |
Effective strategy to coupling Zr-MOF/ZnO: Synthesis, morphology and photoelectrochemical properties evaluation |
spellingShingle |
Effective strategy to coupling Zr-MOF/ZnO: Synthesis, morphology and photoelectrochemical properties evaluation da Trindade, Letícia G. [UNESP] Metal-organic framework Photoanode Solar cell ZnO Zr-MOF |
title_short |
Effective strategy to coupling Zr-MOF/ZnO: Synthesis, morphology and photoelectrochemical properties evaluation |
title_full |
Effective strategy to coupling Zr-MOF/ZnO: Synthesis, morphology and photoelectrochemical properties evaluation |
title_fullStr |
Effective strategy to coupling Zr-MOF/ZnO: Synthesis, morphology and photoelectrochemical properties evaluation |
title_full_unstemmed |
Effective strategy to coupling Zr-MOF/ZnO: Synthesis, morphology and photoelectrochemical properties evaluation |
title_sort |
Effective strategy to coupling Zr-MOF/ZnO: Synthesis, morphology and photoelectrochemical properties evaluation |
author |
da Trindade, Letícia G. [UNESP] |
author_facet |
da Trindade, Letícia G. [UNESP] Borba, Katiúscia M.N. Trench, Aline B. Zanchet, Letícia Teodoro, Vinícius Pontes, Fenelon M.L. [UNESP] Longo, Elson Mazzo, Tatiana M. |
author_role |
author |
author2 |
Borba, Katiúscia M.N. Trench, Aline B. Zanchet, Letícia Teodoro, Vinícius Pontes, Fenelon M.L. [UNESP] Longo, Elson Mazzo, Tatiana M. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal do Rio Grande do Sul - UFRGS Universidade Federal de São Carlos (UFSCar) Universidade Federal de São Paulo (UNIFESP) |
dc.contributor.author.fl_str_mv |
da Trindade, Letícia G. [UNESP] Borba, Katiúscia M.N. Trench, Aline B. Zanchet, Letícia Teodoro, Vinícius Pontes, Fenelon M.L. [UNESP] Longo, Elson Mazzo, Tatiana M. |
dc.subject.por.fl_str_mv |
Metal-organic framework Photoanode Solar cell ZnO Zr-MOF |
topic |
Metal-organic framework Photoanode Solar cell ZnO Zr-MOF |
description |
Zr-MOF was coupled with ZnO particles by mechanical mixture followed by heat treatment at 400 °C. The Zr-MOF influence on the ZnO structure was investigated by means of X-ray diffraction (XRD), surface area analysis (BET), electron microscopy (SEM and TEM), spectroscopy (XPS) and photoelectrochemical experiment. The main phase of the synthesized samples well matched the hexagonal wurtzite structure of ZnO. The XPS analysis confirm the heterostructure formation between ZnO and Zr-MOF materials and shows that the sample with 25 wt% Zr-MOF (ZnO/MOF25) has the higher proportion of lattice oxygen compared to the pristine ZnO and the sample with 50 wt% Zr-MOF (ZnO/MOF50). The reduction in the oxygen vacancies in the ZnO/MOF25 sample supports the greater effectiveness of heterostructure formation in this sample. The results also indicated that the ZnO/MOF25 sample is a promising photoelectrode for solar cells. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T11:02:43Z 2021-06-25T11:02:43Z 2021-01-01 |
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.jssc.2020.121794 Journal of Solid State Chemistry, v. 293. 1095-726X 0022-4596 http://hdl.handle.net/11449/207886 10.1016/j.jssc.2020.121794 2-s2.0-85093945391 |
url |
http://dx.doi.org/10.1016/j.jssc.2020.121794 http://hdl.handle.net/11449/207886 |
identifier_str_mv |
Journal of Solid State Chemistry, v. 293. 1095-726X 0022-4596 10.1016/j.jssc.2020.121794 2-s2.0-85093945391 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Solid State Chemistry |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus 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_ |
1797789532091842560 |