Theoretical and experimental study of the photocatalytic activity of ZnO coated tubular reactor

ZnO thin films were deposited inside of fused silica tubing by aerosol assisted chemical vapor deposition technique. The films were transparent, uniform, highly adherent and non-light scattering. Photocatalytic activity of internally ZnO coated tubing was evaluated by discoloration of a methyl orang...

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Autores: EDNA IRIS RIOS VALDOVINOS, WILBER ANTUNEZ FLORES, JOSE FRANCISCO POLA ALBORES, PEDRO PIZA RUIZ, MARIO MIKI YOSHIDA
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2013
País:México
Institución:Centro de Investigación en Materiales Avanzados
Repositorio:Fuente de Objetos Científicos Open Access del CIMAV
Idioma:inglés
OAI Identifier:oai:cimav.repositorioinstitucional.mx:1004/1093
Acceso en línea:http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1093
Access Level:acceso abierto
Palabra clave:info:eu-repo/classification/ZnO/AACVD
info:eu-repo/classification/Photocatalytic properties/Coated tubing
info:eu-repo/classification/Photonic efficiency/Carrier distribution model
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/22
info:eu-repo/classification/cti/2299
info:eu-repo/classification/cti/229999
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spelling Theoretical and experimental study of the photocatalytic activity of ZnO coated tubular reactorEDNA IRIS RIOS VALDOVINOSWILBER ANTUNEZ FLORESJOSE FRANCISCO POLA ALBORESPEDRO PIZA RUIZMARIO MIKI YOSHIDAinfo:eu-repo/classification/ZnO/AACVDinfo:eu-repo/classification/Photocatalytic properties/Coated tubinginfo:eu-repo/classification/Photonic efficiency/Carrier distribution modelinfo:eu-repo/classification/cti/1info:eu-repo/classification/cti/22info:eu-repo/classification/cti/2299info:eu-repo/classification/cti/229999info:eu-repo/classification/cti/229999ZnO thin films were deposited inside of fused silica tubing by aerosol assisted chemical vapor deposition technique. The films were transparent, uniform, highly adherent and non-light scattering. Photocatalytic activity of internally ZnO coated tubing was evaluated by discoloration of a methyl orange aqueous solution in a batch reactor. Tubing was externally irradiated with UV-A at room temperature. A one dimensional model was proposed to calculate the spatial distribution of the carrier density and the films’ surface charge carrier concentration. This model can explain the influence of the films thickness on the photocatalytic activity. Results showed that the photocatalytic activity largely depends on the film thickness. For external irradiation of the films the optimum thickness was around 60–70 nm, for which the photocatalytic activity was maximum. The photonic efficiency of internally ZnO coated tubular reactors was evaluated as a function of initial colorant concentration, irradiation time and intensity. Furthermore, due to the high activity of the ZnO films, the films were repeatedly exposed to UV-A irradiation cycles, followed by activity measurement.2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionapplication/pdfhttp://cimav.repositorioinstitucional.mx/jspui/handle/1004/1093reponame:Fuente de Objetos Científicos Open Access del CIMAVinstname:Centro de Investigación en Materiales Avanzadosinstacron:CIMAVenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/about/cc0/oai:cimav.repositorioinstitucional.mx:1004/10932024-08-28T03:19:00Z
dc.title.none.fl_str_mv Theoretical and experimental study of the photocatalytic activity of ZnO coated tubular reactor
title Theoretical and experimental study of the photocatalytic activity of ZnO coated tubular reactor
spellingShingle Theoretical and experimental study of the photocatalytic activity of ZnO coated tubular reactor
EDNA IRIS RIOS VALDOVINOS
info:eu-repo/classification/ZnO/AACVD
info:eu-repo/classification/Photocatalytic properties/Coated tubing
info:eu-repo/classification/Photonic efficiency/Carrier distribution model
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/22
info:eu-repo/classification/cti/2299
info:eu-repo/classification/cti/229999
info:eu-repo/classification/cti/229999
title_short Theoretical and experimental study of the photocatalytic activity of ZnO coated tubular reactor
title_full Theoretical and experimental study of the photocatalytic activity of ZnO coated tubular reactor
title_fullStr Theoretical and experimental study of the photocatalytic activity of ZnO coated tubular reactor
title_full_unstemmed Theoretical and experimental study of the photocatalytic activity of ZnO coated tubular reactor
title_sort Theoretical and experimental study of the photocatalytic activity of ZnO coated tubular reactor
dc.creator.none.fl_str_mv EDNA IRIS RIOS VALDOVINOS
WILBER ANTUNEZ FLORES
JOSE FRANCISCO POLA ALBORES
PEDRO PIZA RUIZ
MARIO MIKI YOSHIDA
author EDNA IRIS RIOS VALDOVINOS
author_facet EDNA IRIS RIOS VALDOVINOS
WILBER ANTUNEZ FLORES
JOSE FRANCISCO POLA ALBORES
PEDRO PIZA RUIZ
MARIO MIKI YOSHIDA
author_role author
author2 WILBER ANTUNEZ FLORES
JOSE FRANCISCO POLA ALBORES
PEDRO PIZA RUIZ
MARIO MIKI YOSHIDA
author2_role author
author
author
author
dc.subject.none.fl_str_mv info:eu-repo/classification/ZnO/AACVD
info:eu-repo/classification/Photocatalytic properties/Coated tubing
info:eu-repo/classification/Photonic efficiency/Carrier distribution model
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/22
info:eu-repo/classification/cti/2299
info:eu-repo/classification/cti/229999
info:eu-repo/classification/cti/229999
topic info:eu-repo/classification/ZnO/AACVD
info:eu-repo/classification/Photocatalytic properties/Coated tubing
info:eu-repo/classification/Photonic efficiency/Carrier distribution model
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/22
info:eu-repo/classification/cti/2299
info:eu-repo/classification/cti/229999
info:eu-repo/classification/cti/229999
description ZnO thin films were deposited inside of fused silica tubing by aerosol assisted chemical vapor deposition technique. The films were transparent, uniform, highly adherent and non-light scattering. Photocatalytic activity of internally ZnO coated tubing was evaluated by discoloration of a methyl orange aqueous solution in a batch reactor. Tubing was externally irradiated with UV-A at room temperature. A one dimensional model was proposed to calculate the spatial distribution of the carrier density and the films’ surface charge carrier concentration. This model can explain the influence of the films thickness on the photocatalytic activity. Results showed that the photocatalytic activity largely depends on the film thickness. For external irradiation of the films the optimum thickness was around 60–70 nm, for which the photocatalytic activity was maximum. The photonic efficiency of internally ZnO coated tubular reactors was evaluated as a function of initial colorant concentration, irradiation time and intensity. Furthermore, due to the high activity of the ZnO films, the films were repeatedly exposed to UV-A irradiation cycles, followed by activity measurement.
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1093
url http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1093
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/about/cc0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/about/cc0/
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Fuente de Objetos Científicos Open Access del CIMAV
instname:Centro de Investigación en Materiales Avanzados
instacron:CIMAV
instname_str Centro de Investigación en Materiales Avanzados
instacron_str CIMAV
institution CIMAV
reponame_str Fuente de Objetos Científicos Open Access del CIMAV
collection Fuente de Objetos Científicos Open Access del CIMAV
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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