Pesticides abatement using activated carbon produced from a mixture of synthetic polymers by chemical activation with KOH and K2CO3

Detalhes bibliográficos
Autor(a) principal: Cansado, Isabel Pestana da Paixão
Data de Publicação: 2019
Outros Autores: Belo, Cristóvão Ramiro, Mourão, Paulo Alexandre Mira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10174/26528
https://doi.org/10.1016/j.enmm.2019.100261
Resumo: Highly efficient low cost carbon adsorbents were prepared from synthetic polymers mixture, such as polyethyleneterephthalate (PET) and polyacrylonitrile (PAN), by chemical activation, with potassium hydroxide or potassium carbonate, at 1073 K. Mixtures polymers carbon activation is more effective with KOH than with K2CO3, since the apparent surface area and the micropore volume were always higher on those prepared with KOH. The activated carbons (ACs) obtained presented a high thermal stability, a basic character and a very high apparent surface area (between 1206 and 2828 m2 g−1), micropore volume (between 0.35 and 1.38 cm3 g−1), with mean pore sizes ranging the supermicropores region. These ACs were successfully tested on 2,4-dichlorophenoxyacetic acid (2,4-D) and 4-chloro-2-methylphenoxyacetic acid (MCPA) removals from the liquid phase. The results achieved are very promising, as the adsorption capacity of these AC is higher than that obtained with commercial AC used for this end.
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spelling Pesticides abatement using activated carbon produced from a mixture of synthetic polymers by chemical activation with KOH and K2CO3Synthetic polymersChemical activationPesticides2,4-DMCPAHighly efficient low cost carbon adsorbents were prepared from synthetic polymers mixture, such as polyethyleneterephthalate (PET) and polyacrylonitrile (PAN), by chemical activation, with potassium hydroxide or potassium carbonate, at 1073 K. Mixtures polymers carbon activation is more effective with KOH than with K2CO3, since the apparent surface area and the micropore volume were always higher on those prepared with KOH. The activated carbons (ACs) obtained presented a high thermal stability, a basic character and a very high apparent surface area (between 1206 and 2828 m2 g−1), micropore volume (between 0.35 and 1.38 cm3 g−1), with mean pore sizes ranging the supermicropores region. These ACs were successfully tested on 2,4-dichlorophenoxyacetic acid (2,4-D) and 4-chloro-2-methylphenoxyacetic acid (MCPA) removals from the liquid phase. The results achieved are very promising, as the adsorption capacity of these AC is higher than that obtained with commercial AC used for this end.Elsevier2020-01-22T10:20:18Z2020-01-222019-12-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/26528http://hdl.handle.net/10174/26528https://doi.org/10.1016/j.enmm.2019.100261engDquiippc@uevora.ptil cristovaoramiro64@gmail.compamm@uevora.pt306Cansado, Isabel Pestana da PaixãoBelo, Cristóvão RamiroMourão, Paulo Alexandre Mirainfo: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:RCAAP2024-01-03T19:21:18Zoai:dspace.uevora.pt:10174/26528Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:16:48.034337Repositório 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 Pesticides abatement using activated carbon produced from a mixture of synthetic polymers by chemical activation with KOH and K2CO3
title Pesticides abatement using activated carbon produced from a mixture of synthetic polymers by chemical activation with KOH and K2CO3
spellingShingle Pesticides abatement using activated carbon produced from a mixture of synthetic polymers by chemical activation with KOH and K2CO3
Cansado, Isabel Pestana da Paixão
Synthetic polymers
Chemical activation
Pesticides
2,4-D
MCPA
title_short Pesticides abatement using activated carbon produced from a mixture of synthetic polymers by chemical activation with KOH and K2CO3
title_full Pesticides abatement using activated carbon produced from a mixture of synthetic polymers by chemical activation with KOH and K2CO3
title_fullStr Pesticides abatement using activated carbon produced from a mixture of synthetic polymers by chemical activation with KOH and K2CO3
title_full_unstemmed Pesticides abatement using activated carbon produced from a mixture of synthetic polymers by chemical activation with KOH and K2CO3
title_sort Pesticides abatement using activated carbon produced from a mixture of synthetic polymers by chemical activation with KOH and K2CO3
author Cansado, Isabel Pestana da Paixão
author_facet Cansado, Isabel Pestana da Paixão
Belo, Cristóvão Ramiro
Mourão, Paulo Alexandre Mira
author_role author
author2 Belo, Cristóvão Ramiro
Mourão, Paulo Alexandre Mira
author2_role author
author
dc.contributor.author.fl_str_mv Cansado, Isabel Pestana da Paixão
Belo, Cristóvão Ramiro
Mourão, Paulo Alexandre Mira
dc.subject.por.fl_str_mv Synthetic polymers
Chemical activation
Pesticides
2,4-D
MCPA
topic Synthetic polymers
Chemical activation
Pesticides
2,4-D
MCPA
description Highly efficient low cost carbon adsorbents were prepared from synthetic polymers mixture, such as polyethyleneterephthalate (PET) and polyacrylonitrile (PAN), by chemical activation, with potassium hydroxide or potassium carbonate, at 1073 K. Mixtures polymers carbon activation is more effective with KOH than with K2CO3, since the apparent surface area and the micropore volume were always higher on those prepared with KOH. The activated carbons (ACs) obtained presented a high thermal stability, a basic character and a very high apparent surface area (between 1206 and 2828 m2 g−1), micropore volume (between 0.35 and 1.38 cm3 g−1), with mean pore sizes ranging the supermicropores region. These ACs were successfully tested on 2,4-dichlorophenoxyacetic acid (2,4-D) and 4-chloro-2-methylphenoxyacetic acid (MCPA) removals from the liquid phase. The results achieved are very promising, as the adsorption capacity of these AC is higher than that obtained with commercial AC used for this end.
publishDate 2019
dc.date.none.fl_str_mv 2019-12-01T00:00:00Z
2020-01-22T10:20:18Z
2020-01-22
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/10174/26528
http://hdl.handle.net/10174/26528
https://doi.org/10.1016/j.enmm.2019.100261
url http://hdl.handle.net/10174/26528
https://doi.org/10.1016/j.enmm.2019.100261
dc.language.iso.fl_str_mv eng
language eng
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ippc@uevora.pt
il cristovaoramiro64@gmail.com
pamm@uevora.pt
306
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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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