Carbon-based materials prepared from pine gasification residues for acetaminophen adsorption
Autor(a) principal: | |
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Data de Publicação: | 2014 |
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/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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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) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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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 |
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1799130218790649856 |