Effect of the photocatalytic activity of TiO2 on lignin depolymerization

Lignin is a good candidate for photocatalytic cracking due to the presence of hydroxyl groups. The photocatalytic cracking reaction involves TiO2 as heterogeneous catalyst. In the present work lignin obtained by two different pulping methods is treated under photocatalytic conditions to be depolimer...

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Detalles Bibliográficos
Autores: Prado García, Raquel, Erdocia Iriarte, Xabier, Labidi Bouchrika, Jalel
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/65133
Acceso en línea:http://hdl.handle.net/10810/65133
Access Level:acceso abierto
Palabra clave:lignin
ionic liquids
photocatalysis
depolymerization
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spelling Effect of the photocatalytic activity of TiO2 on lignin depolymerizationPrado García, RaquelErdocia Iriarte, XabierLabidi Bouchrika, Jalelligninionic liquidsphotocatalysisdepolymerizationLignin is a good candidate for photocatalytic cracking due to the presence of hydroxyl groups. The photocatalytic cracking reaction involves TiO2 as heterogeneous catalyst. In the present work lignin obtained by two different pulping methods is treated under photocatalytic conditions to be depolimerized. Different exposure times to UV radiation were carried out. The results of GS–MS revealed the degradation products of the hemicelluloses contained in the lignin samples. 1 h of exposure to UV radiation shows the best yield in the obtaining of lignin degradation derived compounds; the main products obtained are syringaldehyde, pyrocatechol and raspberryketone, the concentration of syringaldehyde increases 20% and vanillin 30%.Departments of Agriculture, Fishing and Food and Department of Education, Universities and Investigation of the Basque Government (scholarship of young researchers training) and the Saiotek programElsevier202420242013info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/65133reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoIngléshttps://www.sciencedirect.com/science/article/pii/S0045653513002774info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Copyright © 2013 Elsevier Ltd. under CC BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/)oai:addi.ehu.eus:10810/651332026-06-18T09:23:17Z
dc.title.none.fl_str_mv Effect of the photocatalytic activity of TiO2 on lignin depolymerization
title Effect of the photocatalytic activity of TiO2 on lignin depolymerization
spellingShingle Effect of the photocatalytic activity of TiO2 on lignin depolymerization
Prado García, Raquel
lignin
ionic liquids
photocatalysis
depolymerization
title_short Effect of the photocatalytic activity of TiO2 on lignin depolymerization
title_full Effect of the photocatalytic activity of TiO2 on lignin depolymerization
title_fullStr Effect of the photocatalytic activity of TiO2 on lignin depolymerization
title_full_unstemmed Effect of the photocatalytic activity of TiO2 on lignin depolymerization
title_sort Effect of the photocatalytic activity of TiO2 on lignin depolymerization
dc.creator.none.fl_str_mv Prado García, Raquel
Erdocia Iriarte, Xabier
Labidi Bouchrika, Jalel
author Prado García, Raquel
author_facet Prado García, Raquel
Erdocia Iriarte, Xabier
Labidi Bouchrika, Jalel
author_role author
author2 Erdocia Iriarte, Xabier
Labidi Bouchrika, Jalel
author2_role author
author
dc.subject.none.fl_str_mv lignin
ionic liquids
photocatalysis
depolymerization
topic lignin
ionic liquids
photocatalysis
depolymerization
description Lignin is a good candidate for photocatalytic cracking due to the presence of hydroxyl groups. The photocatalytic cracking reaction involves TiO2 as heterogeneous catalyst. In the present work lignin obtained by two different pulping methods is treated under photocatalytic conditions to be depolimerized. Different exposure times to UV radiation were carried out. The results of GS–MS revealed the degradation products of the hemicelluloses contained in the lignin samples. 1 h of exposure to UV radiation shows the best yield in the obtaining of lignin degradation derived compounds; the main products obtained are syringaldehyde, pyrocatechol and raspberryketone, the concentration of syringaldehyde increases 20% and vanillin 30%.
publishDate 2013
dc.date.none.fl_str_mv 2013
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/65133
url http://hdl.handle.net/10810/65133
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://www.sciencedirect.com/science/article/pii/S0045653513002774
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301629

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