In situ evaluation of the NOx removal efficiency of photocatalytic pavements: statistical analysis of the relevance of exposure time and environmental variables

In the recent past, the NOx removal efficiency of photocatalytic materials has been subject of many studies with promising results. However, many of these studies involve laboratory tests carried out under standardized climatic exposure conditions, often not representative of the real-world environm...

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Autores: Jiménez-Relinque, Eva, Hingorani, Ramón, Rubiano, Francisco, Grande, María, Castillo Talavera, Ángel, Castellote, Marta
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/210774
Acceso en línea:http://hdl.handle.net/10261/210774
Access Level:acceso abierto
Palabra clave:NOx
Pavements
Photocatalysis
Efficiency
Pilot scale
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spelling In situ evaluation of the NOx removal efficiency of photocatalytic pavements: statistical analysis of the relevance of exposure time and environmental variablesJiménez-Relinque, EvaHingorani, RamónRubiano, FranciscoGrande, MaríaCastillo Talavera, ÁngelCastellote, MartaNOxPavementsPhotocatalysisEfficiencyPhotocatalysisPilot scaleIn the recent past, the NOx removal efficiency of photocatalytic materials has been subject of many studies with promising results. However, many of these studies involve laboratory tests carried out under standardized climatic exposure conditions, often not representative of the real-world environment. With the aim to bridge this gap, selected photocatalytic materials have been applied to different substrates in outdoor demonstrator platforms at pilot scale as part of the project LIFE-PHOTOSCALING. The paper presents the results of in situ measurements of NOx removal efficiency of the materials, performed during 17 months. Statistical models accounting for the influence of exposure time and relevant environmental variables are derived. They suggest that photocatalytic emulsions on the tested asphalt experience a significant loss of activity over time irrespective of climatic conditions. The efficiency of photocatalytic slurries on asphalt and of concrete tiles, with the photocatalyst applied on surface or in bulk, mainly depends on substrate humidity.This study was funded by the LIFE program (Project LIFE PHOTOSCALING, LIFE 13/ENV/ES/001221, http://www.life-photoscaling.eu/). The authors wish to thank the manufacters for supplying the photocatalytic products implemented on platforms: Sociedad Financiera y Minera, S.A., Active Walls S.L., Industrial Breinco S.A., Cristal France S.A.S.; Impresa Bacchi S.R.L., GranitiFiandre S.p.A, and Fundación Cartif.Peer reviewedSpringer NatureEuropean CommissionConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202020202019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/210774reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1007/s11356-019-04322-ySíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2107742026-05-22T06:33:51Z
dc.title.none.fl_str_mv In situ evaluation of the NOx removal efficiency of photocatalytic pavements: statistical analysis of the relevance of exposure time and environmental variables
title In situ evaluation of the NOx removal efficiency of photocatalytic pavements: statistical analysis of the relevance of exposure time and environmental variables
spellingShingle In situ evaluation of the NOx removal efficiency of photocatalytic pavements: statistical analysis of the relevance of exposure time and environmental variables
Jiménez-Relinque, Eva
NOx
Pavements
Photocatalysis
Efficiency
Photocatalysis
Pilot scale
title_short In situ evaluation of the NOx removal efficiency of photocatalytic pavements: statistical analysis of the relevance of exposure time and environmental variables
title_full In situ evaluation of the NOx removal efficiency of photocatalytic pavements: statistical analysis of the relevance of exposure time and environmental variables
title_fullStr In situ evaluation of the NOx removal efficiency of photocatalytic pavements: statistical analysis of the relevance of exposure time and environmental variables
title_full_unstemmed In situ evaluation of the NOx removal efficiency of photocatalytic pavements: statistical analysis of the relevance of exposure time and environmental variables
title_sort In situ evaluation of the NOx removal efficiency of photocatalytic pavements: statistical analysis of the relevance of exposure time and environmental variables
dc.creator.none.fl_str_mv Jiménez-Relinque, Eva
Hingorani, Ramón
Rubiano, Francisco
Grande, María
Castillo Talavera, Ángel
Castellote, Marta
author Jiménez-Relinque, Eva
author_facet Jiménez-Relinque, Eva
Hingorani, Ramón
Rubiano, Francisco
Grande, María
Castillo Talavera, Ángel
Castellote, Marta
author_role author
author2 Hingorani, Ramón
Rubiano, Francisco
Grande, María
Castillo Talavera, Ángel
Castellote, Marta
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv NOx
Pavements
Photocatalysis
Efficiency
Photocatalysis
Pilot scale
topic NOx
Pavements
Photocatalysis
Efficiency
Photocatalysis
Pilot scale
description In the recent past, the NOx removal efficiency of photocatalytic materials has been subject of many studies with promising results. However, many of these studies involve laboratory tests carried out under standardized climatic exposure conditions, often not representative of the real-world environment. With the aim to bridge this gap, selected photocatalytic materials have been applied to different substrates in outdoor demonstrator platforms at pilot scale as part of the project LIFE-PHOTOSCALING. The paper presents the results of in situ measurements of NOx removal efficiency of the materials, performed during 17 months. Statistical models accounting for the influence of exposure time and relevant environmental variables are derived. They suggest that photocatalytic emulsions on the tested asphalt experience a significant loss of activity over time irrespective of climatic conditions. The efficiency of photocatalytic slurries on asphalt and of concrete tiles, with the photocatalyst applied on surface or in bulk, mainly depends on substrate humidity.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/210774
url http://hdl.handle.net/10261/210774
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1007/s11356-019-04322-y
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
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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