Carbon-based materials prepared from pine gasification residues for acetaminophen adsorption

Detalhes bibliográficos
Autor(a) principal: Galhetas, M.
Data de Publicação: 2014
Outros Autores: Mestre, A. S., Pinto, Moisés L., Gulyurtlu, Ibrahim, Lopes, Helena, Carvalho, A. P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.9/2495
Resumo: Fly ash, a residue produced frompine gasification,was used as precursor of carbon-basedmaterials assayed in acetaminophen adsorption. Materials prepared by activation with K2CO3, presented high porosity development (ABET 1200m2 g1) and samples calcined at 900 C presented high volumes of large micropores and mesopores. Kinetic and equilibrium acetaminophen adsorption data showed that the process obeys to the pseudo-second order kinetic equation and Langmuir model, respectively. The rate of acetaminophen adsorption depends of the presence of larger micropores. For the lab-made samplesmonolayer adsorption capacities attained values similar to those of commercial carbons. The influence of themicropore size distribution of the carbons in the acetaminophen adsorption process justified the lower adsorption affinities of the lab-made carbons. The importance of pores of a specific dimension (0.7 nm) to enhance the affinity of the molecule towards the carbon surfacewas demonstrated. The increase of temperature lead to highermonolayer adsorption capacities, most likely due to the easier accessibility of the acetaminophen species to the narrowest micropores.
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spelling Carbon-based materials prepared from pine gasification residues for acetaminophen adsorptionPine gasificationAshesCarbon materialsMicropore size distributionAcetaminophen adsorptionFly ash, a residue produced frompine gasification,was used as precursor of carbon-basedmaterials assayed in acetaminophen adsorption. Materials prepared by activation with K2CO3, presented high porosity development (ABET 1200m2 g1) and samples calcined at 900 C presented high volumes of large micropores and mesopores. Kinetic and equilibrium acetaminophen adsorption data showed that the process obeys to the pseudo-second order kinetic equation and Langmuir model, respectively. The rate of acetaminophen adsorption depends of the presence of larger micropores. For the lab-made samplesmonolayer adsorption capacities attained values similar to those of commercial carbons. The influence of themicropore size distribution of the carbons in the acetaminophen adsorption process justified the lower adsorption affinities of the lab-made carbons. The importance of pores of a specific dimension (0.7 nm) to enhance the affinity of the molecule towards the carbon surfacewas demonstrated. The increase of temperature lead to highermonolayer adsorption capacities, most likely due to the easier accessibility of the acetaminophen species to the narrowest micropores.ElsevierRepositório do LNEGGalhetas, M.Mestre, A. S.Pinto, Moisés L.Gulyurtlu, IbrahimLopes, HelenaCarvalho, A. P.2014-07-01T16:42:29Z2014-01-01T00:00:00Z2014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/2495engGalhetas, M.; Mestre, A.S.; Pinto, M.L.; Gulyurtlu, I.; Lopes, H.; Carvalho, A.P. Carbon-based materials prepared from pine gasification residues for acetaminophen adsorption. In: Chemical Engineering Journal, 2014, Vol. 240, p. 344-3511385-8947info: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:RCAAP2022-09-06T12:27:33Zoai:repositorio.lneg.pt:10400.9/2495Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:35:23.123632Repositório 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 Carbon-based materials prepared from pine gasification residues for acetaminophen adsorption
title Carbon-based materials prepared from pine gasification residues for acetaminophen adsorption
spellingShingle Carbon-based materials prepared from pine gasification residues for acetaminophen adsorption
Galhetas, M.
Pine gasification
Ashes
Carbon materials
Micropore size distribution
Acetaminophen adsorption
title_short Carbon-based materials prepared from pine gasification residues for acetaminophen adsorption
title_full Carbon-based materials prepared from pine gasification residues for acetaminophen adsorption
title_fullStr Carbon-based materials prepared from pine gasification residues for acetaminophen adsorption
title_full_unstemmed Carbon-based materials prepared from pine gasification residues for acetaminophen adsorption
title_sort Carbon-based materials prepared from pine gasification residues for acetaminophen adsorption
author Galhetas, M.
author_facet Galhetas, M.
Mestre, A. S.
Pinto, Moisés L.
Gulyurtlu, Ibrahim
Lopes, Helena
Carvalho, A. P.
author_role author
author2 Mestre, A. S.
Pinto, Moisés L.
Gulyurtlu, Ibrahim
Lopes, Helena
Carvalho, A. P.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório do LNEG
dc.contributor.author.fl_str_mv Galhetas, M.
Mestre, A. S.
Pinto, Moisés L.
Gulyurtlu, Ibrahim
Lopes, Helena
Carvalho, A. P.
dc.subject.por.fl_str_mv Pine gasification
Ashes
Carbon materials
Micropore size distribution
Acetaminophen adsorption
topic Pine gasification
Ashes
Carbon materials
Micropore size distribution
Acetaminophen adsorption
description Fly ash, a residue produced frompine gasification,was used as precursor of carbon-basedmaterials assayed in acetaminophen adsorption. Materials prepared by activation with K2CO3, presented high porosity development (ABET 1200m2 g1) and samples calcined at 900 C presented high volumes of large micropores and mesopores. Kinetic and equilibrium acetaminophen adsorption data showed that the process obeys to the pseudo-second order kinetic equation and Langmuir model, respectively. The rate of acetaminophen adsorption depends of the presence of larger micropores. For the lab-made samplesmonolayer adsorption capacities attained values similar to those of commercial carbons. The influence of themicropore size distribution of the carbons in the acetaminophen adsorption process justified the lower adsorption affinities of the lab-made carbons. The importance of pores of a specific dimension (0.7 nm) to enhance the affinity of the molecule towards the carbon surfacewas demonstrated. The increase of temperature lead to highermonolayer adsorption capacities, most likely due to the easier accessibility of the acetaminophen species to the narrowest micropores.
publishDate 2014
dc.date.none.fl_str_mv 2014-07-01T16:42:29Z
2014-01-01T00:00:00Z
2014-01-01T00:00:00Z
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/10400.9/2495
url http://hdl.handle.net/10400.9/2495
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Galhetas, M.; Mestre, A.S.; Pinto, M.L.; Gulyurtlu, I.; Lopes, H.; Carvalho, A.P. Carbon-based materials prepared from pine gasification residues for acetaminophen adsorption. In: Chemical Engineering Journal, 2014, Vol. 240, p. 344-351
1385-8947
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 Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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