Polyoxometalate (POM)-aided modification of lignin from wheat straw biorefinery

Detalhes bibliográficos
Autor(a) principal: Dizhbite, Tatiana
Data de Publicação: 2013
Outros Autores: Jashina, Lilija, Dobele, Galina, Andersone, Anna, Evtuguin, Dmitry, Bikovens, Oskar, Telysheva, Galina
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/20561
Resumo: The oxidative modification of Biolignin (BL) has been investigated to make it more suitable as an adsorbent for transition/heavy metals. BL is a by-product of a wheat straw organosolv process for the production of pulp, ethanol, and pentoses (CIMV S.A. pilot plant, Levallois Perret, France). It was subjected to oxidation by a polyoxometalate (POM) H-3[PMo12O40], aiming at the increment of oxygen-containing adsorption-active sites. The POM oxidation of BL was performed under moderate conditions (1 bar, 60-90 degrees C, and 200 degrees C) with the co-oxidants O-2 or H2O2. The resulting lignin functionality and structure was evaluated by pyrolysis-gas chromatography/mass spectrometry, solid-state C-13 nuclear magnetic resonance, Fourier transform infrared, and chemical analysis. The condensation degree of BL and its COOH and aliphatic OH group contents increased significantly, whereas the polymer structure was maintained. Under optimal conditions with POM/H2O2, the sorption capacity of lignins toward Cd(II) and Pb(II) was increased threefold and twofold, respectively.
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spelling Polyoxometalate (POM)-aided modification of lignin from wheat straw biorefineryOXYGEN DELIGNIFICATIONKRAFT LIGNINASPEN WOODAQUEOUS-SOLUTIONSMODEL COMPOUNDSACIDPULPADSORPTIONWATERSORPTIONThe oxidative modification of Biolignin (BL) has been investigated to make it more suitable as an adsorbent for transition/heavy metals. BL is a by-product of a wheat straw organosolv process for the production of pulp, ethanol, and pentoses (CIMV S.A. pilot plant, Levallois Perret, France). It was subjected to oxidation by a polyoxometalate (POM) H-3[PMo12O40], aiming at the increment of oxygen-containing adsorption-active sites. The POM oxidation of BL was performed under moderate conditions (1 bar, 60-90 degrees C, and 200 degrees C) with the co-oxidants O-2 or H2O2. The resulting lignin functionality and structure was evaluated by pyrolysis-gas chromatography/mass spectrometry, solid-state C-13 nuclear magnetic resonance, Fourier transform infrared, and chemical analysis. The condensation degree of BL and its COOH and aliphatic OH group contents increased significantly, whereas the polymer structure was maintained. Under optimal conditions with POM/H2O2, the sorption capacity of lignins toward Cd(II) and Pb(II) was increased threefold and twofold, respectively.WALTER DE GRUYTER GMBH2017-12-07T19:51:29Z2013-01-01T00:00:00Z2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/20561eng0018-383010.1515/hf-2012-0193Dizhbite, TatianaJashina, LilijaDobele, GalinaAndersone, AnnaEvtuguin, DmitryBikovens, OskarTelysheva, Galinainfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:40:25Zoai:ria.ua.pt:10773/20561Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:55:14.470868Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Polyoxometalate (POM)-aided modification of lignin from wheat straw biorefinery
title Polyoxometalate (POM)-aided modification of lignin from wheat straw biorefinery
spellingShingle Polyoxometalate (POM)-aided modification of lignin from wheat straw biorefinery
Dizhbite, Tatiana
OXYGEN DELIGNIFICATION
KRAFT LIGNIN
ASPEN WOOD
AQUEOUS-SOLUTIONS
MODEL COMPOUNDS
ACID
PULP
ADSORPTION
WATER
SORPTION
title_short Polyoxometalate (POM)-aided modification of lignin from wheat straw biorefinery
title_full Polyoxometalate (POM)-aided modification of lignin from wheat straw biorefinery
title_fullStr Polyoxometalate (POM)-aided modification of lignin from wheat straw biorefinery
title_full_unstemmed Polyoxometalate (POM)-aided modification of lignin from wheat straw biorefinery
title_sort Polyoxometalate (POM)-aided modification of lignin from wheat straw biorefinery
author Dizhbite, Tatiana
author_facet Dizhbite, Tatiana
Jashina, Lilija
Dobele, Galina
Andersone, Anna
Evtuguin, Dmitry
Bikovens, Oskar
Telysheva, Galina
author_role author
author2 Jashina, Lilija
Dobele, Galina
Andersone, Anna
Evtuguin, Dmitry
Bikovens, Oskar
Telysheva, Galina
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Dizhbite, Tatiana
Jashina, Lilija
Dobele, Galina
Andersone, Anna
Evtuguin, Dmitry
Bikovens, Oskar
Telysheva, Galina
dc.subject.por.fl_str_mv OXYGEN DELIGNIFICATION
KRAFT LIGNIN
ASPEN WOOD
AQUEOUS-SOLUTIONS
MODEL COMPOUNDS
ACID
PULP
ADSORPTION
WATER
SORPTION
topic OXYGEN DELIGNIFICATION
KRAFT LIGNIN
ASPEN WOOD
AQUEOUS-SOLUTIONS
MODEL COMPOUNDS
ACID
PULP
ADSORPTION
WATER
SORPTION
description The oxidative modification of Biolignin (BL) has been investigated to make it more suitable as an adsorbent for transition/heavy metals. BL is a by-product of a wheat straw organosolv process for the production of pulp, ethanol, and pentoses (CIMV S.A. pilot plant, Levallois Perret, France). It was subjected to oxidation by a polyoxometalate (POM) H-3[PMo12O40], aiming at the increment of oxygen-containing adsorption-active sites. The POM oxidation of BL was performed under moderate conditions (1 bar, 60-90 degrees C, and 200 degrees C) with the co-oxidants O-2 or H2O2. The resulting lignin functionality and structure was evaluated by pyrolysis-gas chromatography/mass spectrometry, solid-state C-13 nuclear magnetic resonance, Fourier transform infrared, and chemical analysis. The condensation degree of BL and its COOH and aliphatic OH group contents increased significantly, whereas the polymer structure was maintained. Under optimal conditions with POM/H2O2, the sorption capacity of lignins toward Cd(II) and Pb(II) was increased threefold and twofold, respectively.
publishDate 2013
dc.date.none.fl_str_mv 2013-01-01T00:00:00Z
2013
2017-12-07T19:51:29Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10773/20561
url http://hdl.handle.net/10773/20561
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0018-3830
10.1515/hf-2012-0193
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv WALTER DE GRUYTER GMBH
publisher.none.fl_str_mv WALTER DE GRUYTER GMBH
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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