Carnauba straw powder treated with bentonite for copper adsorption in aqueous solution: isothermal, kinetic and thermodynamic study

Página do item simplificado Estatísticas
dc.contributor.authorPereira, Jéssyca Emanuella Saraiva
dc.contributor.authorSilva, Alfredo José Ferreira da
dc.contributor.authorNascimento, Paula F. P.
dc.contributor.authorFerreira, Landolfo da Silva
dc.contributor.authorBarros Neto, Eduardo Lins de
dc.date.accessioned2021-09-09T14:14:25Z
dc.date.available2021-09-09T14:14:25Z
dc.date.issued2020-10-08
dc.description.resumoIn this work, the natural and modified carnauba powder from the addition of bentonite was evaluated for the adsorption of Cu(II) ions in synthetic solution. The results showed that the carnauba powder treated with bentonite (CPTB) showed a better percentage of removal of Cu(II) ions when compared to natural carnauba powder (NCP). The best results for both adsorbents were obtained with pH 5. The adsorption kinetics was governed by the pseudo-second-order model for both bioadsorbents studied. While the isothermal behavior was governed by the Langmuir model and showed that the adsorption capacity of the CPTB for Cu(II) was 21.98 mg·g 1. The interaction of the metal and CPTB was also investigated by means of thermodynamic parameters showing that the adsorption process is not spontaneous, although the values of ΔG decrease with the increase in temperature from 20 to 40 C and endothermic causing an increase in the degree of disorder at the solid/liquid interface. The results showed that the CPTB is a material with potential adsorbent for the removal of copper ionspt_BR
dc.identifier.citationPEREIRA, Jéssyca E. S.; SILVA, Alfredo J. F.; NASCIMENTO, Paula F. P.; FERREIRA, Ruan L. S.; BARROS NETO, Eduardo L.. Carnauba straw powder treated with bentonite for copper adsorption in aqueous solution: isothermal, kinetic and thermodynamic study. Water Science And Technology, [S.L.], v. 82, n. 10, p. 2178-2192, 8 out. 2020. Disponível em: https://iwaponline.com/wst/article/82/10/2178/77553/Carnauba-straw-powder-treated-with-bentonite-for. Acesso em: 09 set. 2021. https://doi.org/10.2166/wst.2020.491pt_BR
dc.identifier.doi10.2166/wst.2020.491
dc.identifier.issn0273-1223
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/33312
dc.languageenpt_BR
dc.publisherIWA Publishingpt_BR
dc.rightsAttribution 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/br/*
dc.subjectAdsorption-ecofriendlypt_BR
dc.subjectBentonitept_BR
dc.subjectCarnauba powderpt_BR
dc.subjectHeavy metalspt_BR
dc.titleCarnauba straw powder treated with bentonite for copper adsorption in aqueous solution: isothermal, kinetic and thermodynamic studypt_BR
dc.typearticlept_BR

Arquivos

Pacote Original

Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
CarnaubaStrawPowderTreated_BARROSNETO_2020.pdf
Tamanho:
548.64 KB
Formato:
Adobe Portable Document Format
Descrição:
Artigo
Nenhuma Miniatura disponível
Baixar

Licença do Pacote

Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.45 KB
Formato:
Item-specific license agreed upon to submission
Nenhuma Miniatura disponível
Baixar

Coleções

CT - DEQ - Artigos publicados em periódicos
Repositório Institucional - UFRN Campus Universitário Lagoa NovaCEP 59078-970 Caixa postal 1524 Natal/RN - BrasilUniversidade Federal do Rio Grande do Norte© Copyright 2025. Todos os direitos reservados.
Contato+55 (84) 3342-2260 - R232Setor de Repositórios Digitaisrepositorio@bczm.ufrn.br
DSpaceIBICT
OasisBR
LAReferencia
Customizado pela CAT - BCZM