Photocatalytic activity of TiO2 thin films deposited by cathodic arc

Autores
Kleiman, Ariel Javier; Marquez, Adriana Beatriz; Vera, Maria Laura; Meichtry, Jorge Martin; Litter, Marta Irene
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work, the photocatalytic activity and the kinetic behavior of anatase TiO2 films deposited by cathodic arc (CA films) on glass substrates is reported and compared with TiO2 Degussa P-25 films obtained by dip-coating immersion. The mass density of films, determined by X-ray reflectometry, allowed the assessment of the porosity of samples. The activity was evaluated from the efficiency to reduce Cr(VI) in the presence of EDTA. Although the response of CA films resulted lower compared with that of P-25 films (a fact associated to a lower porosity), adhesion properties of the new materials were much better. CA film photoactivity improved by increasing the coating thickness. These photocatalysts, whose preparation is simple and affordable, are very promising to be used as immobilized materials in photoreactors for the treatment of pollutants not only in the gas phase but also in aqueous systems.
Fil: Kleiman, Ariel Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; Argentina
Fil: Marquez, Adriana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; Argentina
Fil: Vera, Maria Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales; Argentina
Fil: Meichtry, Jorge Martin. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Litter, Marta Irene. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina. Universidad Nacional de San Martín; Argentina
Materia
Titanium Dioxide
Thin Films
Cathodic Arc
Photocatalysis
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/67924
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Photocatalytic activity of TiO2 thin films deposited by cathodic arcKleiman, Ariel JavierMarquez, Adriana BeatrizVera, Maria LauraMeichtry, Jorge MartinLitter, Marta IreneTitanium DioxideThin FilmsCathodic ArcPhotocatalysishttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In this work, the photocatalytic activity and the kinetic behavior of anatase TiO2 films deposited by cathodic arc (CA films) on glass substrates is reported and compared with TiO2 Degussa P-25 films obtained by dip-coating immersion. The mass density of films, determined by X-ray reflectometry, allowed the assessment of the porosity of samples. The activity was evaluated from the efficiency to reduce Cr(VI) in the presence of EDTA. Although the response of CA films resulted lower compared with that of P-25 films (a fact associated to a lower porosity), adhesion properties of the new materials were much better. CA film photoactivity improved by increasing the coating thickness. These photocatalysts, whose preparation is simple and affordable, are very promising to be used as immobilized materials in photoreactors for the treatment of pollutants not only in the gas phase but also in aqueous systems.Fil: Kleiman, Ariel Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; ArgentinaFil: Marquez, Adriana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; ArgentinaFil: Vera, Maria Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales; ArgentinaFil: Meichtry, Jorge Martin. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; ArgentinaFil: Litter, Marta Irene. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina. Universidad Nacional de San Martín; ArgentinaElsevier Science2011-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/67924Kleiman, Ariel Javier; Marquez, Adriana Beatriz; Vera, Maria Laura; Meichtry, Jorge Martin; Litter, Marta Irene; Photocatalytic activity of TiO2 thin films deposited by cathodic arc; Elsevier Science; Applied Catalysis B: Environmental; 101; 1-2011; 676-6810926-3373CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0926337310004972info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcatb.2010.11.009info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:01:09Zoai:ri.conicet.gov.ar:11336/67924instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:01:10.25CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Photocatalytic activity of TiO2 thin films deposited by cathodic arc
title Photocatalytic activity of TiO2 thin films deposited by cathodic arc
spellingShingle Photocatalytic activity of TiO2 thin films deposited by cathodic arc
Kleiman, Ariel Javier
Titanium Dioxide
Thin Films
Cathodic Arc
Photocatalysis
title_short Photocatalytic activity of TiO2 thin films deposited by cathodic arc
title_full Photocatalytic activity of TiO2 thin films deposited by cathodic arc
title_fullStr Photocatalytic activity of TiO2 thin films deposited by cathodic arc
title_full_unstemmed Photocatalytic activity of TiO2 thin films deposited by cathodic arc
title_sort Photocatalytic activity of TiO2 thin films deposited by cathodic arc
dc.creator.none.fl_str_mv Kleiman, Ariel Javier
Marquez, Adriana Beatriz
Vera, Maria Laura
Meichtry, Jorge Martin
Litter, Marta Irene
author Kleiman, Ariel Javier
author_facet Kleiman, Ariel Javier
Marquez, Adriana Beatriz
Vera, Maria Laura
Meichtry, Jorge Martin
Litter, Marta Irene
author_role author
author2 Marquez, Adriana Beatriz
Vera, Maria Laura
Meichtry, Jorge Martin
Litter, Marta Irene
author2_role author
author
author
author
dc.subject.none.fl_str_mv Titanium Dioxide
Thin Films
Cathodic Arc
Photocatalysis
topic Titanium Dioxide
Thin Films
Cathodic Arc
Photocatalysis
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this work, the photocatalytic activity and the kinetic behavior of anatase TiO2 films deposited by cathodic arc (CA films) on glass substrates is reported and compared with TiO2 Degussa P-25 films obtained by dip-coating immersion. The mass density of films, determined by X-ray reflectometry, allowed the assessment of the porosity of samples. The activity was evaluated from the efficiency to reduce Cr(VI) in the presence of EDTA. Although the response of CA films resulted lower compared with that of P-25 films (a fact associated to a lower porosity), adhesion properties of the new materials were much better. CA film photoactivity improved by increasing the coating thickness. These photocatalysts, whose preparation is simple and affordable, are very promising to be used as immobilized materials in photoreactors for the treatment of pollutants not only in the gas phase but also in aqueous systems.
Fil: Kleiman, Ariel Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; Argentina
Fil: Marquez, Adriana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; Argentina
Fil: Vera, Maria Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales; Argentina
Fil: Meichtry, Jorge Martin. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Litter, Marta Irene. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina. Universidad Nacional de San Martín; Argentina
description In this work, the photocatalytic activity and the kinetic behavior of anatase TiO2 films deposited by cathodic arc (CA films) on glass substrates is reported and compared with TiO2 Degussa P-25 films obtained by dip-coating immersion. The mass density of films, determined by X-ray reflectometry, allowed the assessment of the porosity of samples. The activity was evaluated from the efficiency to reduce Cr(VI) in the presence of EDTA. Although the response of CA films resulted lower compared with that of P-25 films (a fact associated to a lower porosity), adhesion properties of the new materials were much better. CA film photoactivity improved by increasing the coating thickness. These photocatalysts, whose preparation is simple and affordable, are very promising to be used as immobilized materials in photoreactors for the treatment of pollutants not only in the gas phase but also in aqueous systems.
publishDate 2011
dc.date.none.fl_str_mv 2011-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/67924
Kleiman, Ariel Javier; Marquez, Adriana Beatriz; Vera, Maria Laura; Meichtry, Jorge Martin; Litter, Marta Irene; Photocatalytic activity of TiO2 thin films deposited by cathodic arc; Elsevier Science; Applied Catalysis B: Environmental; 101; 1-2011; 676-681
0926-3373
CONICET Digital
CONICET
url http://hdl.handle.net/11336/67924
identifier_str_mv Kleiman, Ariel Javier; Marquez, Adriana Beatriz; Vera, Maria Laura; Meichtry, Jorge Martin; Litter, Marta Irene; Photocatalytic activity of TiO2 thin films deposited by cathodic arc; Elsevier Science; Applied Catalysis B: Environmental; 101; 1-2011; 676-681
0926-3373
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0926337310004972
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcatb.2010.11.009
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846083151637512192
score 13.22299

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