Highly selective one-dimensional TiO2-based nanostructures for air treatment applications

The aim of the present research is to determine the optimum hydrothermal synthesis procedure for using TiO2-based one-dimensional materials as photocatalysts for air treatment applications, in order to enhance their mineralization capacity. The prepared samples were thoroughly characterized by means...

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Detalhes bibliográficos
Autores: Hernández-Alonso, María D., García Rodríguez, Sergio, Suárez Gil, Silvia, Portela, Raquel, Sánchez, Benigno, Coronado, Juan M.
Formato: artículo
Fecha de publicación:2011
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/162700
Acesso em linha:http://hdl.handle.net/10261/162700
Access Level:acceso abierto
Palavra-chave:Photocatalysis
Air treatment
Trichloroethylene
Titanate
Nanotubes
TiO2
Hydrothermal synthesis
Photo-oxidation
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spelling Highly selective one-dimensional TiO2-based nanostructures for air treatment applicationsHernández-Alonso, María D.García Rodríguez, SergioSuárez Gil, SilviaPortela, RaquelSánchez, BenignoCoronado, Juan M.PhotocatalysisAir treatmentTrichloroethyleneTitanateNanotubesTiO2Hydrothermal synthesisPhoto-oxidationThe aim of the present research is to determine the optimum hydrothermal synthesis procedure for using TiO2-based one-dimensional materials as photocatalysts for air treatment applications, in order to enhance their mineralization capacity. The prepared samples were thoroughly characterized by means of TEM, N2 adsorption–desorption isotherms, XRD and Raman spectroscopy. Trichloroethylene (TCE) was selected as a convenient model volatile organic compound (VOC) due to its elevated reactivity. In this study, it is described how the selection of the synthesis parameters (TiO2 precursor, hydrothermal treatment conditions, washing procedure or calcination temperature) allows modulating the nanotubes physicochemical characteristics and, thus, photoactivity. The optimization process led to nanotubes with remarkable photocatalytic performance, with high TCE conversion and selectivity to CO2, which can be favourably compared to that of the benchmark photocatalyst Degussa P25.Financial support from the Spanish Ministry of Science and Innovation (MICINN, MAT2008-01094/MAT) is greatly appreciated. M.D.H. and S.S. also thank MICINN for the award of their postdoctoral contracts.Peer reviewedElsevierMinisterio de Ciencia e Innovación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201820182011info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/162700reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.apcatb.2011.09.009Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1627002026-05-22T06:33:51Z
dc.title.none.fl_str_mv Highly selective one-dimensional TiO2-based nanostructures for air treatment applications
title Highly selective one-dimensional TiO2-based nanostructures for air treatment applications
spellingShingle Highly selective one-dimensional TiO2-based nanostructures for air treatment applications
Hernández-Alonso, María D.
Photocatalysis
Air treatment
Trichloroethylene
Titanate
Nanotubes
TiO2
Hydrothermal synthesis
Photo-oxidation
title_short Highly selective one-dimensional TiO2-based nanostructures for air treatment applications
title_full Highly selective one-dimensional TiO2-based nanostructures for air treatment applications
title_fullStr Highly selective one-dimensional TiO2-based nanostructures for air treatment applications
title_full_unstemmed Highly selective one-dimensional TiO2-based nanostructures for air treatment applications
title_sort Highly selective one-dimensional TiO2-based nanostructures for air treatment applications
dc.creator.none.fl_str_mv Hernández-Alonso, María D.
García Rodríguez, Sergio
Suárez Gil, Silvia
Portela, Raquel
Sánchez, Benigno
Coronado, Juan M.
author Hernández-Alonso, María D.
author_facet Hernández-Alonso, María D.
García Rodríguez, Sergio
Suárez Gil, Silvia
Portela, Raquel
Sánchez, Benigno
Coronado, Juan M.
author_role author
author2 García Rodríguez, Sergio
Suárez Gil, Silvia
Portela, Raquel
Sánchez, Benigno
Coronado, Juan M.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Photocatalysis
Air treatment
Trichloroethylene
Titanate
Nanotubes
TiO2
Hydrothermal synthesis
Photo-oxidation
topic Photocatalysis
Air treatment
Trichloroethylene
Titanate
Nanotubes
TiO2
Hydrothermal synthesis
Photo-oxidation
description The aim of the present research is to determine the optimum hydrothermal synthesis procedure for using TiO2-based one-dimensional materials as photocatalysts for air treatment applications, in order to enhance their mineralization capacity. The prepared samples were thoroughly characterized by means of TEM, N2 adsorption–desorption isotherms, XRD and Raman spectroscopy. Trichloroethylene (TCE) was selected as a convenient model volatile organic compound (VOC) due to its elevated reactivity. In this study, it is described how the selection of the synthesis parameters (TiO2 precursor, hydrothermal treatment conditions, washing procedure or calcination temperature) allows modulating the nanotubes physicochemical characteristics and, thus, photoactivity. The optimization process led to nanotubes with remarkable photocatalytic performance, with high TCE conversion and selectivity to CO2, which can be favourably compared to that of the benchmark photocatalyst Degussa P25.
publishDate 2011
dc.date.none.fl_str_mv 2011
2018
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/162700
url http://hdl.handle.net/10261/162700
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.apcatb.2011.09.009
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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