Adsorption of R-OH molecules on TiO2 surfaces at the solid-liquid interface

Autores
Sanchez, Veronica Muriel; de la Llave, Ezequiel Pablo; Scherlis Perel, Damian Ariel
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The exploration of TiO2 surface reactivity from first-principles calculations has been almost always limited to the gas phase, even though most of the chemically relevant applications of this interface involve the solid-liquid boundary. The reason for this limitation is the complexity of the solid-liquid interface, which poses a serious challenge to standard ab initio methodologies as density functional theory (DFT). In this work we study the interaction of H2O, CH3OH, H2O2, and HCO2H with anatase (101) and rutile (110) surfaces in aqueous solution, employing a continuum solvation model in a DFT framework in periodic boundary conditions [J. Chem. Phys. 2009, 131, 174108 ]. Different adsorption configurations were analyzed, examining the effect of the first water monolayer explicitly included in the simulation. For water and methanol, molecular adsorption was found to be the most stable in the presence of the solvent, while for hydrogen peroxide the preferred configuration depended on the surface. The explicit inclusion of the first water monolayer turns out to be important since it may play a role in the stabilization of the adsorbates at the interface. In general, the slightly positive adsorption energy values obtained (with respect to water) suggest that CH3OH and H2O2 will poorly adsorb from an aqueous solution at the titania surface. Among the three species investigated other than water, the formic acid was the only one to exhibit a higher affinity for the surface than H2O. © 2011 American Chemical Society.
Fil: Sanchez, Veronica Muriel. 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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina
Fil: de la Llave, Ezequiel Pablo. 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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina
Fil: Scherlis Perel, Damian Ariel. 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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina
Materia
Ccontinuum Solvent Model
Dft
Rutile
Anatase
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:11336/72005

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spelling Adsorption of R-OH molecules on TiO2 surfaces at the solid-liquid interfaceSanchez, Veronica Murielde la Llave, Ezequiel PabloScherlis Perel, Damian ArielCcontinuum Solvent ModelDftRutileAnatasehttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The exploration of TiO2 surface reactivity from first-principles calculations has been almost always limited to the gas phase, even though most of the chemically relevant applications of this interface involve the solid-liquid boundary. The reason for this limitation is the complexity of the solid-liquid interface, which poses a serious challenge to standard ab initio methodologies as density functional theory (DFT). In this work we study the interaction of H2O, CH3OH, H2O2, and HCO2H with anatase (101) and rutile (110) surfaces in aqueous solution, employing a continuum solvation model in a DFT framework in periodic boundary conditions [J. Chem. Phys. 2009, 131, 174108 ]. Different adsorption configurations were analyzed, examining the effect of the first water monolayer explicitly included in the simulation. For water and methanol, molecular adsorption was found to be the most stable in the presence of the solvent, while for hydrogen peroxide the preferred configuration depended on the surface. The explicit inclusion of the first water monolayer turns out to be important since it may play a role in the stabilization of the adsorbates at the interface. In general, the slightly positive adsorption energy values obtained (with respect to water) suggest that CH3OH and H2O2 will poorly adsorb from an aqueous solution at the titania surface. Among the three species investigated other than water, the formic acid was the only one to exhibit a higher affinity for the surface than H2O. © 2011 American Chemical Society.Fil: Sanchez, Veronica Muriel. 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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; ArgentinaFil: de la Llave, Ezequiel Pablo. 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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; ArgentinaFil: Scherlis Perel, Damian Ariel. 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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; ArgentinaAmerican Chemical Society2011-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/72005Sanchez, Veronica Muriel; de la Llave, Ezequiel Pablo; Scherlis Perel, Damian Ariel; Adsorption of R-OH molecules on TiO2 surfaces at the solid-liquid interface; American Chemical Society; Langmuir; 27; 6; 3-2011; 2411-24190743-7463CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/la103511cinfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/la103511cinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:44:37Zoai:ri.conicet.gov.ar:11336/72005instacron: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 09:44:38.104CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Adsorption of R-OH molecules on TiO2 surfaces at the solid-liquid interface
title Adsorption of R-OH molecules on TiO2 surfaces at the solid-liquid interface
spellingShingle Adsorption of R-OH molecules on TiO2 surfaces at the solid-liquid interface
Sanchez, Veronica Muriel
Ccontinuum Solvent Model
Dft
Rutile
Anatase
title_short Adsorption of R-OH molecules on TiO2 surfaces at the solid-liquid interface
title_full Adsorption of R-OH molecules on TiO2 surfaces at the solid-liquid interface
title_fullStr Adsorption of R-OH molecules on TiO2 surfaces at the solid-liquid interface
title_full_unstemmed Adsorption of R-OH molecules on TiO2 surfaces at the solid-liquid interface
title_sort Adsorption of R-OH molecules on TiO2 surfaces at the solid-liquid interface
dc.creator.none.fl_str_mv Sanchez, Veronica Muriel
de la Llave, Ezequiel Pablo
Scherlis Perel, Damian Ariel
author Sanchez, Veronica Muriel
author_facet Sanchez, Veronica Muriel
de la Llave, Ezequiel Pablo
Scherlis Perel, Damian Ariel
author_role author
author2 de la Llave, Ezequiel Pablo
Scherlis Perel, Damian Ariel
author2_role author
author
dc.subject.none.fl_str_mv Ccontinuum Solvent Model
Dft
Rutile
Anatase
topic Ccontinuum Solvent Model
Dft
Rutile
Anatase
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The exploration of TiO2 surface reactivity from first-principles calculations has been almost always limited to the gas phase, even though most of the chemically relevant applications of this interface involve the solid-liquid boundary. The reason for this limitation is the complexity of the solid-liquid interface, which poses a serious challenge to standard ab initio methodologies as density functional theory (DFT). In this work we study the interaction of H2O, CH3OH, H2O2, and HCO2H with anatase (101) and rutile (110) surfaces in aqueous solution, employing a continuum solvation model in a DFT framework in periodic boundary conditions [J. Chem. Phys. 2009, 131, 174108 ]. Different adsorption configurations were analyzed, examining the effect of the first water monolayer explicitly included in the simulation. For water and methanol, molecular adsorption was found to be the most stable in the presence of the solvent, while for hydrogen peroxide the preferred configuration depended on the surface. The explicit inclusion of the first water monolayer turns out to be important since it may play a role in the stabilization of the adsorbates at the interface. In general, the slightly positive adsorption energy values obtained (with respect to water) suggest that CH3OH and H2O2 will poorly adsorb from an aqueous solution at the titania surface. Among the three species investigated other than water, the formic acid was the only one to exhibit a higher affinity for the surface than H2O. © 2011 American Chemical Society.
Fil: Sanchez, Veronica Muriel. 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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina
Fil: de la Llave, Ezequiel Pablo. 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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina
Fil: Scherlis Perel, Damian Ariel. 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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina
description The exploration of TiO2 surface reactivity from first-principles calculations has been almost always limited to the gas phase, even though most of the chemically relevant applications of this interface involve the solid-liquid boundary. The reason for this limitation is the complexity of the solid-liquid interface, which poses a serious challenge to standard ab initio methodologies as density functional theory (DFT). In this work we study the interaction of H2O, CH3OH, H2O2, and HCO2H with anatase (101) and rutile (110) surfaces in aqueous solution, employing a continuum solvation model in a DFT framework in periodic boundary conditions [J. Chem. Phys. 2009, 131, 174108 ]. Different adsorption configurations were analyzed, examining the effect of the first water monolayer explicitly included in the simulation. For water and methanol, molecular adsorption was found to be the most stable in the presence of the solvent, while for hydrogen peroxide the preferred configuration depended on the surface. The explicit inclusion of the first water monolayer turns out to be important since it may play a role in the stabilization of the adsorbates at the interface. In general, the slightly positive adsorption energy values obtained (with respect to water) suggest that CH3OH and H2O2 will poorly adsorb from an aqueous solution at the titania surface. Among the three species investigated other than water, the formic acid was the only one to exhibit a higher affinity for the surface than H2O. © 2011 American Chemical Society.
publishDate 2011
dc.date.none.fl_str_mv 2011-03
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/11336/72005
Sanchez, Veronica Muriel; de la Llave, Ezequiel Pablo; Scherlis Perel, Damian Ariel; Adsorption of R-OH molecules on TiO2 surfaces at the solid-liquid interface; American Chemical Society; Langmuir; 27; 6; 3-2011; 2411-2419
0743-7463
CONICET Digital
CONICET
url http://hdl.handle.net/11336/72005
identifier_str_mv Sanchez, Veronica Muriel; de la Llave, Ezequiel Pablo; Scherlis Perel, Damian Ariel; Adsorption of R-OH molecules on TiO2 surfaces at the solid-liquid interface; American Chemical Society; Langmuir; 27; 6; 3-2011; 2411-2419
0743-7463
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/la103511c
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/la103511c
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
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
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