Thermally stimulated desorption optical fiber-based interrogation system

Detalhes bibliográficos
Autor(a) principal: Raposo, Maria
Data de Publicação: 2021
Outros Autores: Xavier, Carlota, Monteiro, Catarina, Silva, Susana, Frazão, Orlando, Zagalo, Paulo, Ribeiro, Paulo António
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/132048
Resumo: M-ERA-NET2/0002/2016.
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spelling Thermally stimulated desorption optical fiber-based interrogation systemAn analysis of graphene oxide layers’ stabilityAdsorption kineticsDesorption kineticsGraphene oxideIn situLayer-by-layer filmsOptical fiberSensorThermally stimulated desorptionAtomic and Molecular Physics, and OpticsInstrumentationRadiology Nuclear Medicine and imagingM-ERA-NET2/0002/2016.Thin graphene oxide (GO) film layers are being widely used as sensing layers in different types of electrical and optical sensor devices. GO layers are particularly popular because of their tuned interface reflectivity. The stability of GO layers is fundamental for sensor device reliability, particularly in complex aqueous environments such as wastewater. In this work, the stability of GO layers in layer-by-layer (LbL) films of polyethyleneimine (PEI) and GO was investigated. The results led to the following conclusions: PEI/GO films grow linearly with the number of bilayers as long as the adsorption time is kept constant; the adsorption kinetics of a GO layer follow the behavior of the adsorption of polyelectrolytes; and the interaction associated with the growth of these films is of the ionic type since the desorption activation energy has a value of 119 ± 17 kJ/mol. Therefore, it is possible to conclude that PEI/GO films are suitable for application in optical fiber sensor devices; most importantly, an optical fiber-based interrogation setup can easily be adapted to investigate in situ desorption via a thermally stimulated process. In addition, it is possible to draw inferences about film stability in solution in a fast, reliable way when compared with the traditional ones.DF – Departamento de FísicaCeFITec – Centro de Física e Investigação TecnológicaRUNRaposo, MariaXavier, CarlotaMonteiro, CatarinaSilva, SusanaFrazão, OrlandoZagalo, PauloRibeiro, Paulo António2022-02-02T05:27:50Z2021-03-042021-03-04T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article12application/pdfhttp://hdl.handle.net/10362/132048eng2304-6732PURE: 29550197https://doi.org/10.3390/photonics8030070info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:10:42Zoai:run.unl.pt:10362/132048Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:47:19.541618Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Thermally stimulated desorption optical fiber-based interrogation system
An analysis of graphene oxide layers’ stability
title Thermally stimulated desorption optical fiber-based interrogation system
spellingShingle Thermally stimulated desorption optical fiber-based interrogation system
Raposo, Maria
Adsorption kinetics
Desorption kinetics
Graphene oxide
In situ
Layer-by-layer films
Optical fiber
Sensor
Thermally stimulated desorption
Atomic and Molecular Physics, and Optics
Instrumentation
Radiology Nuclear Medicine and imaging
title_short Thermally stimulated desorption optical fiber-based interrogation system
title_full Thermally stimulated desorption optical fiber-based interrogation system
title_fullStr Thermally stimulated desorption optical fiber-based interrogation system
title_full_unstemmed Thermally stimulated desorption optical fiber-based interrogation system
title_sort Thermally stimulated desorption optical fiber-based interrogation system
author Raposo, Maria
author_facet Raposo, Maria
Xavier, Carlota
Monteiro, Catarina
Silva, Susana
Frazão, Orlando
Zagalo, Paulo
Ribeiro, Paulo António
author_role author
author2 Xavier, Carlota
Monteiro, Catarina
Silva, Susana
Frazão, Orlando
Zagalo, Paulo
Ribeiro, Paulo António
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv DF – Departamento de Física
CeFITec – Centro de Física e Investigação Tecnológica
RUN
dc.contributor.author.fl_str_mv Raposo, Maria
Xavier, Carlota
Monteiro, Catarina
Silva, Susana
Frazão, Orlando
Zagalo, Paulo
Ribeiro, Paulo António
dc.subject.por.fl_str_mv Adsorption kinetics
Desorption kinetics
Graphene oxide
In situ
Layer-by-layer films
Optical fiber
Sensor
Thermally stimulated desorption
Atomic and Molecular Physics, and Optics
Instrumentation
Radiology Nuclear Medicine and imaging
topic Adsorption kinetics
Desorption kinetics
Graphene oxide
In situ
Layer-by-layer films
Optical fiber
Sensor
Thermally stimulated desorption
Atomic and Molecular Physics, and Optics
Instrumentation
Radiology Nuclear Medicine and imaging
description M-ERA-NET2/0002/2016.
publishDate 2021
dc.date.none.fl_str_mv 2021-03-04
2021-03-04T00:00:00Z
2022-02-02T05:27:50Z
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://hdl.handle.net/10362/132048
url http://hdl.handle.net/10362/132048
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2304-6732
PURE: 29550197
https://doi.org/10.3390/photonics8030070
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 12
application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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