The influence of the activated carbon post-treatment on the phenolic
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/3312 https://doi.org/10.1016/j.fuproc.2011.10.015 |
Resumo: | The aim of this research was to investigate how post treatment modification, such as those with sodium hydroxide or urea, can influence the capacity of activated carbon (AC) for phenolic compounds removal from liquid media. The ACs modification was performed using urea impregnation followed by pyrolysis at high temperature. With all ACs used, this treatment induced a pore volume increase, a mean pore size broadening, an increase in the point of zero charge and also in the basic character. The modification with sodium hydroxide brings to light the influence of the precursor nature as the achievements are really diverse. With the ACs obtained from PET, a pore volume and mean pore size reduction occurred, with the AC-cloth no textural effect was observed and with the AC obtained from cork, an enlargement of the mean pore size and an increase of the pore volume were confirmed. The difference in the acidic/basic character exhibited by the modified ACs was in agreement with the presence of acidic/basic superficial groups identified by FTIR. The textural and chemical properties of the ACs affect in a direct way the phenolic compounds removal capacity. Particularly, those modified with urea, which exhibited a superior removal capacity for both phenolic compounds. |
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The influence of the activated carbon post-treatment on the phenolicActivated carbonFunctionalisationNitrogen incorporationAdsorptionPhenolic compoundsThe aim of this research was to investigate how post treatment modification, such as those with sodium hydroxide or urea, can influence the capacity of activated carbon (AC) for phenolic compounds removal from liquid media. The ACs modification was performed using urea impregnation followed by pyrolysis at high temperature. With all ACs used, this treatment induced a pore volume increase, a mean pore size broadening, an increase in the point of zero charge and also in the basic character. The modification with sodium hydroxide brings to light the influence of the precursor nature as the achievements are really diverse. With the ACs obtained from PET, a pore volume and mean pore size reduction occurred, with the AC-cloth no textural effect was observed and with the AC obtained from cork, an enlargement of the mean pore size and an increase of the pore volume were confirmed. The difference in the acidic/basic character exhibited by the modified ACs was in agreement with the presence of acidic/basic superficial groups identified by FTIR. The textural and chemical properties of the ACs affect in a direct way the phenolic compounds removal capacity. Particularly, those modified with urea, which exhibited a superior removal capacity for both phenolic compounds.Elsevier2012-01-11T13:05:44Z2012-01-112012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/3312http://hdl.handle.net/10174/3312https://doi.org/10.1016/j.fuproc.2011.10.015engI.P.P. Cansado, et al., The influence of the activated carbon post-treatment on the phenolic compounds removal, Fuel Process. Technol. (2011), doi:10.1016/j.fuproc.2011.10.015Fuel Processing and TechnologyQuiippc@uevora.ptpamm@uevora.ptanaisafalcao@gmail.commanrc@uevora.ptpeter@uevora.pt305Cansado, Isabel P. P.Mourão, Paulo A. M.Falcão, Ana I.Ribeiro Carrott, M . Manuela L.Carrott, Peter J. M.info: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:RCAAP2024-01-03T18:40:22Zoai:dspace.uevora.pt:10174/3312Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:58:46.728142Repositório 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 |
The influence of the activated carbon post-treatment on the phenolic |
title |
The influence of the activated carbon post-treatment on the phenolic |
spellingShingle |
The influence of the activated carbon post-treatment on the phenolic Cansado, Isabel P. P. Activated carbon Functionalisation Nitrogen incorporation Adsorption Phenolic compounds |
title_short |
The influence of the activated carbon post-treatment on the phenolic |
title_full |
The influence of the activated carbon post-treatment on the phenolic |
title_fullStr |
The influence of the activated carbon post-treatment on the phenolic |
title_full_unstemmed |
The influence of the activated carbon post-treatment on the phenolic |
title_sort |
The influence of the activated carbon post-treatment on the phenolic |
author |
Cansado, Isabel P. P. |
author_facet |
Cansado, Isabel P. P. Mourão, Paulo A. M. Falcão, Ana I. Ribeiro Carrott, M . Manuela L. Carrott, Peter J. M. |
author_role |
author |
author2 |
Mourão, Paulo A. M. Falcão, Ana I. Ribeiro Carrott, M . Manuela L. Carrott, Peter J. M. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Cansado, Isabel P. P. Mourão, Paulo A. M. Falcão, Ana I. Ribeiro Carrott, M . Manuela L. Carrott, Peter J. M. |
dc.subject.por.fl_str_mv |
Activated carbon Functionalisation Nitrogen incorporation Adsorption Phenolic compounds |
topic |
Activated carbon Functionalisation Nitrogen incorporation Adsorption Phenolic compounds |
description |
The aim of this research was to investigate how post treatment modification, such as those with sodium hydroxide or urea, can influence the capacity of activated carbon (AC) for phenolic compounds removal from liquid media. The ACs modification was performed using urea impregnation followed by pyrolysis at high temperature. With all ACs used, this treatment induced a pore volume increase, a mean pore size broadening, an increase in the point of zero charge and also in the basic character. The modification with sodium hydroxide brings to light the influence of the precursor nature as the achievements are really diverse. With the ACs obtained from PET, a pore volume and mean pore size reduction occurred, with the AC-cloth no textural effect was observed and with the AC obtained from cork, an enlargement of the mean pore size and an increase of the pore volume were confirmed. The difference in the acidic/basic character exhibited by the modified ACs was in agreement with the presence of acidic/basic superficial groups identified by FTIR. The textural and chemical properties of the ACs affect in a direct way the phenolic compounds removal capacity. Particularly, those modified with urea, which exhibited a superior removal capacity for both phenolic compounds. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-01-11T13:05:44Z 2012-01-11 2012-01-01T00:00:00Z |
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/10174/3312 http://hdl.handle.net/10174/3312 https://doi.org/10.1016/j.fuproc.2011.10.015 |
url |
http://hdl.handle.net/10174/3312 https://doi.org/10.1016/j.fuproc.2011.10.015 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
I.P.P. Cansado, et al., The influence of the activated carbon post-treatment on the phenolic compounds removal, Fuel Process. Technol. (2011), doi:10.1016/j.fuproc.2011.10.015 Fuel Processing and Technology Qui ippc@uevora.pt pamm@uevora.pt anaisafalcao@gmail.com manrc@uevora.pt peter@uevora.pt 305 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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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1799136470950215680 |