Synthesis, characterization and photocatalytic activity of 1D TiO2 nanostructures

Autores
Cabrera, Julieta; Alarcón Cavero, Hugo Arturo; López, Alcides; Candal, Roberto Jorge; Acosta, Dwight; Rodríguez, Juan
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Nanowire/nanorod TiO2 structures of approximately 8 nm in diameter and around 1,000 nm long were synthesized by alkaline hydrothermal treatment of two different TiO2 nanopowders. The first precursor was TiO2 obtained by the sol-gel process (SG-TiO2); the second was the well-known commercial TiO2 P-25 (P25-TiO2). Anatase-like 1D TiO2 nanostructures were obtained in both cases. The one-dimensional (1D) nanostructures synthesized from SG-TiO2 powders turned into rod-like nanostructures after annealing at 400 °C for 2 h. Conversely, the nanostructures synthesized from P25-TiO2 preserved the tubular structure after annealing, displaying a higher Brunauer–Emmett–Teller surface area than the first system (279 and 97 m2/g, respectively). Despite the higher surface area shown by the 1D nanostructures, in both cases the photocatalytic activity was lower than for the P25-TiO2 powder. However, the rod-like nanostructures obtained from SG-TiO2 displayed slightly higher efficiency than the sol-gel prepared powders. The lower photocatalytic activity of the nanostructures with respect to P-25 can be associated with the lower crystallinity of 1D TiO2 in both materials.
Fil: Cabrera, Julieta. Universidad Nacional de Ingeniería; Perú
Fil: Alarcón Cavero, Hugo Arturo. Universidad Nacional de Ingeniería; Perú. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: López, Alcides. Universidad Nacional de Ingeniería; Perú. Instituto Peruano de Energía Nuclear; Perú
Fil: Candal, Roberto Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Acosta, Dwight. Universidad Nacional Autónoma de México; México
Fil: Rodríguez, Juan. Universidad Nacional de Ingeniería; Perú
Materia
1d Tio2 Nanostructures
Hydrothermal Treatment
Photocatalytic Activity
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/30829
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/30829
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Synthesis, characterization and photocatalytic activity of 1D TiO2 nanostructuresCabrera, JulietaAlarcón Cavero, Hugo ArturoLópez, AlcidesCandal, Roberto JorgeAcosta, DwightRodríguez, Juan1d Tio2 NanostructuresHydrothermal TreatmentPhotocatalytic Activityhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Nanowire/nanorod TiO2 structures of approximately 8 nm in diameter and around 1,000 nm long were synthesized by alkaline hydrothermal treatment of two different TiO2 nanopowders. The first precursor was TiO2 obtained by the sol-gel process (SG-TiO2); the second was the well-known commercial TiO2 P-25 (P25-TiO2). Anatase-like 1D TiO2 nanostructures were obtained in both cases. The one-dimensional (1D) nanostructures synthesized from SG-TiO2 powders turned into rod-like nanostructures after annealing at 400 °C for 2 h. Conversely, the nanostructures synthesized from P25-TiO2 preserved the tubular structure after annealing, displaying a higher Brunauer–Emmett–Teller surface area than the first system (279 and 97 m2/g, respectively). Despite the higher surface area shown by the 1D nanostructures, in both cases the photocatalytic activity was lower than for the P25-TiO2 powder. However, the rod-like nanostructures obtained from SG-TiO2 displayed slightly higher efficiency than the sol-gel prepared powders. The lower photocatalytic activity of the nanostructures with respect to P-25 can be associated with the lower crystallinity of 1D TiO2 in both materials.Fil: Cabrera, Julieta. Universidad Nacional de Ingeniería; PerúFil: Alarcón Cavero, Hugo Arturo. Universidad Nacional de Ingeniería; Perú. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: López, Alcides. Universidad Nacional de Ingeniería; Perú. Instituto Peruano de Energía Nuclear; PerúFil: Candal, Roberto Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaFil: Acosta, Dwight. Universidad Nacional Autónoma de México; MéxicoFil: Rodríguez, Juan. Universidad Nacional de Ingeniería; PerúIWA Publishing2014-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/30829Cabrera, Julieta; Alarcón Cavero, Hugo Arturo; López, Alcides; Candal, Roberto Jorge; Acosta, Dwight; et al.; Synthesis, characterization and photocatalytic activity of 1D TiO2 nanostructures; IWA Publishing; Water Science And Technology; 70; 6; 1-2014; 972-9790273-1223CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.2166/wst.2014.312info:eu-repo/semantics/altIdentifier/url/http://wst.iwaponline.com/content/70/6/972info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:18Zoai:ri.conicet.gov.ar:11336/30829instacron: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:34982025-09-03 09:46:19.274CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Synthesis, characterization and photocatalytic activity of 1D TiO2 nanostructures
title Synthesis, characterization and photocatalytic activity of 1D TiO2 nanostructures
spellingShingle Synthesis, characterization and photocatalytic activity of 1D TiO2 nanostructures
Cabrera, Julieta
1d Tio2 Nanostructures
Hydrothermal Treatment
Photocatalytic Activity
title_short Synthesis, characterization and photocatalytic activity of 1D TiO2 nanostructures
title_full Synthesis, characterization and photocatalytic activity of 1D TiO2 nanostructures
title_fullStr Synthesis, characterization and photocatalytic activity of 1D TiO2 nanostructures
title_full_unstemmed Synthesis, characterization and photocatalytic activity of 1D TiO2 nanostructures
title_sort Synthesis, characterization and photocatalytic activity of 1D TiO2 nanostructures
dc.creator.none.fl_str_mv Cabrera, Julieta
Alarcón Cavero, Hugo Arturo
López, Alcides
Candal, Roberto Jorge
Acosta, Dwight
Rodríguez, Juan
author Cabrera, Julieta
author_facet Cabrera, Julieta
Alarcón Cavero, Hugo Arturo
López, Alcides
Candal, Roberto Jorge
Acosta, Dwight
Rodríguez, Juan
author_role author
author2 Alarcón Cavero, Hugo Arturo
López, Alcides
Candal, Roberto Jorge
Acosta, Dwight
Rodríguez, Juan
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv 1d Tio2 Nanostructures
Hydrothermal Treatment
Photocatalytic Activity
topic 1d Tio2 Nanostructures
Hydrothermal Treatment
Photocatalytic Activity
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Nanowire/nanorod TiO2 structures of approximately 8 nm in diameter and around 1,000 nm long were synthesized by alkaline hydrothermal treatment of two different TiO2 nanopowders. The first precursor was TiO2 obtained by the sol-gel process (SG-TiO2); the second was the well-known commercial TiO2 P-25 (P25-TiO2). Anatase-like 1D TiO2 nanostructures were obtained in both cases. The one-dimensional (1D) nanostructures synthesized from SG-TiO2 powders turned into rod-like nanostructures after annealing at 400 °C for 2 h. Conversely, the nanostructures synthesized from P25-TiO2 preserved the tubular structure after annealing, displaying a higher Brunauer–Emmett–Teller surface area than the first system (279 and 97 m2/g, respectively). Despite the higher surface area shown by the 1D nanostructures, in both cases the photocatalytic activity was lower than for the P25-TiO2 powder. However, the rod-like nanostructures obtained from SG-TiO2 displayed slightly higher efficiency than the sol-gel prepared powders. The lower photocatalytic activity of the nanostructures with respect to P-25 can be associated with the lower crystallinity of 1D TiO2 in both materials.
Fil: Cabrera, Julieta. Universidad Nacional de Ingeniería; Perú
Fil: Alarcón Cavero, Hugo Arturo. Universidad Nacional de Ingeniería; Perú. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: López, Alcides. Universidad Nacional de Ingeniería; Perú. Instituto Peruano de Energía Nuclear; Perú
Fil: Candal, Roberto Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Acosta, Dwight. Universidad Nacional Autónoma de México; México
Fil: Rodríguez, Juan. Universidad Nacional de Ingeniería; Perú
description Nanowire/nanorod TiO2 structures of approximately 8 nm in diameter and around 1,000 nm long were synthesized by alkaline hydrothermal treatment of two different TiO2 nanopowders. The first precursor was TiO2 obtained by the sol-gel process (SG-TiO2); the second was the well-known commercial TiO2 P-25 (P25-TiO2). Anatase-like 1D TiO2 nanostructures were obtained in both cases. The one-dimensional (1D) nanostructures synthesized from SG-TiO2 powders turned into rod-like nanostructures after annealing at 400 °C for 2 h. Conversely, the nanostructures synthesized from P25-TiO2 preserved the tubular structure after annealing, displaying a higher Brunauer–Emmett–Teller surface area than the first system (279 and 97 m2/g, respectively). Despite the higher surface area shown by the 1D nanostructures, in both cases the photocatalytic activity was lower than for the P25-TiO2 powder. However, the rod-like nanostructures obtained from SG-TiO2 displayed slightly higher efficiency than the sol-gel prepared powders. The lower photocatalytic activity of the nanostructures with respect to P-25 can be associated with the lower crystallinity of 1D TiO2 in both materials.
publishDate 2014
dc.date.none.fl_str_mv 2014-01
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/11336/30829
Cabrera, Julieta; Alarcón Cavero, Hugo Arturo; López, Alcides; Candal, Roberto Jorge; Acosta, Dwight; et al.; Synthesis, characterization and photocatalytic activity of 1D TiO2 nanostructures; IWA Publishing; Water Science And Technology; 70; 6; 1-2014; 972-979
0273-1223
CONICET Digital
CONICET
url http://hdl.handle.net/11336/30829
identifier_str_mv Cabrera, Julieta; Alarcón Cavero, Hugo Arturo; López, Alcides; Candal, Roberto Jorge; Acosta, Dwight; et al.; Synthesis, characterization and photocatalytic activity of 1D TiO2 nanostructures; IWA Publishing; Water Science And Technology; 70; 6; 1-2014; 972-979
0273-1223
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.2166/wst.2014.312
info:eu-repo/semantics/altIdentifier/url/http://wst.iwaponline.com/content/70/6/972
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv IWA Publishing
publisher.none.fl_str_mv IWA Publishing
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
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score 13.13397

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