An approach on the comparative behavior of chloro / nitro substituted phenols photocatalytic degradation in water

This Accepted Manuscript will be available for reuse under a CC BY-NC-ND licence after 24 months of embargo period

Detalles Bibliográficos
Autores: Tolosana Moranchel, Álvaro, Ovejero, D., Barco, B., Bahamonde, A., Díaz Nieto, Elena, Faraldos, M.
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/689013
Acceso en línea:http://hdl.handle.net/10486/689013
https://dx.doi.org/10.1016/j.jece.2019.103051
Access Level:acceso abierto
Palabra clave:Chlorophenols
Hammett constant
Nitrophenols
Photocatalytic degradation
TiO 2
Química
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spelling An approach on the comparative behavior of chloro / nitro substituted phenols photocatalytic degradation in waterTolosana Moranchel, ÁlvaroOvejero, D.Barco, B.Bahamonde, A.Díaz Nieto, ElenaFaraldos, M.ChlorophenolsHammett constantNitrophenolsPhotocatalytic degradationTiO 2QuímicaThis Accepted Manuscript will be available for reuse under a CC BY-NC-ND licence after 24 months of embargo periodThe study of position and number of substituents on the photocatalytic removal of some mono-, di- and tri-, chloro- and nitrophenols, as well as more known initial TOC concentration effect, has revealed the noteworthy impact on the process efficiency. Despite the complex effect of multiple substituents directing the HO attack to their preferential positions, Hammett constant could be used to predict photocatalytic degradation performance. TiO2 P25 was able to mineralize initial TOC concentrations up to 25-50 mg·L-1. Higher TOC concentrations constitute a drawback and drive to residual parent pollutants and organic by-products, which become more important when raising the starting TOC loading. Increasing the number of chloro- or nitro- groups in the aromatic ring does not imply higher ecotoxiticy values; contrarily, the position of the substituent can lead to significant differences. TOC conversion values are hardly affected by the substituent position, but by the number of groups in the organic molecule, probably due to steric hindrance. The formation of chloride and nitrogen inorganic ions, inherent to photocatalytic degradation, fulfills the Cl and N mass balances. Finally, the effect of number, position and electronic nature of substituents on contaminant initial photocatalytic degradation rates was studied by corresponding Hammett constant correlationsThis work has been supported by the Spanish Plan Nacional de I+D+i through the project CTM2015-64895-R. Alvaro Tolosana-Moranchel thanks to Ministerio de Educación, Cultura y Deporte for his FPU grant (FPU14/01605). The authors are also grateful to Evonik Company for TiO2 sampleElsevier B.VDepartamento de Ingeniería QuímicaFacultad de CienciasUAM. Departamento de Ingeniería Química20192019-06-01research articlehttp://purl.org/coar/resource_type/c_2df8fbb1AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/689013https://dx.doi.org/10.1016/j.jece.2019.103051reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/6890132026-06-23T12:46:27Z
dc.title.none.fl_str_mv An approach on the comparative behavior of chloro / nitro substituted phenols photocatalytic degradation in water
title An approach on the comparative behavior of chloro / nitro substituted phenols photocatalytic degradation in water
spellingShingle An approach on the comparative behavior of chloro / nitro substituted phenols photocatalytic degradation in water
Tolosana Moranchel, Álvaro
Chlorophenols
Hammett constant
Nitrophenols
Photocatalytic degradation
TiO 2
Química
title_short An approach on the comparative behavior of chloro / nitro substituted phenols photocatalytic degradation in water
title_full An approach on the comparative behavior of chloro / nitro substituted phenols photocatalytic degradation in water
title_fullStr An approach on the comparative behavior of chloro / nitro substituted phenols photocatalytic degradation in water
title_full_unstemmed An approach on the comparative behavior of chloro / nitro substituted phenols photocatalytic degradation in water
title_sort An approach on the comparative behavior of chloro / nitro substituted phenols photocatalytic degradation in water
dc.creator.none.fl_str_mv Tolosana Moranchel, Álvaro
Ovejero, D.
Barco, B.
Bahamonde, A.
Díaz Nieto, Elena
Faraldos, M.
author Tolosana Moranchel, Álvaro
author_facet Tolosana Moranchel, Álvaro
Ovejero, D.
Barco, B.
Bahamonde, A.
Díaz Nieto, Elena
Faraldos, M.
author_role author
author2 Ovejero, D.
Barco, B.
Bahamonde, A.
Díaz Nieto, Elena
Faraldos, M.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Ingeniería Química
Facultad de Ciencias
UAM. Departamento de Ingeniería Química
dc.subject.none.fl_str_mv Chlorophenols
Hammett constant
Nitrophenols
Photocatalytic degradation
TiO 2
Química
topic Chlorophenols
Hammett constant
Nitrophenols
Photocatalytic degradation
TiO 2
Química
description This Accepted Manuscript will be available for reuse under a CC BY-NC-ND licence after 24 months of embargo period
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-06-01
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/689013
https://dx.doi.org/10.1016/j.jece.2019.103051
url http://hdl.handle.net/10486/689013
https://dx.doi.org/10.1016/j.jece.2019.103051
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V
publisher.none.fl_str_mv Elsevier B.V
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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