Synthesis, characterization and photocatalytic activity of 1D TiO2 nanostructures

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-2...

Descripción completa

Detalles Bibliográficos
Autores: Cabrera, Julieta, Alarcón Cavero, Hugo Arturo, López, Alcides, Candal, Roberto Jorge, Acosta, Dwight, Rodríguez, Juan
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/30829
Acceso en línea:http://hdl.handle.net/11336/30829
Access Level:acceso abierto
Palabra clave:1d Tio2 Nanostructures
Hydrothermal Treatment
Photocatalytic Activity
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
id AR_7db365f834c5fe5f4e2c1b89aae06dff
oai_identifier_str oai:ri.conicet.gov.ar:11336/30829
network_acronym_str AR
network_name_str Argentina
repository_id_str
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 Técnicas2024-05-08T13:36:13Zoai: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:34982024-05-08 13:36:14.266CONICET 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
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
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
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
topic 1d Tio2 Nanostructures
Hydrothermal Treatment
Photocatalytic Activity
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
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
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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_ 1799194779366457344
score 15.81155

Similares en LA Referencia