Copper removal using carnauba straw powder: Equilibrium, kinetics, and thermodynamic studies

dc.contributor.authorSilva, Alfredo José Ferreira da
dc.contributor.authorMoura, Maria Carlenise Paiva de Alencar
dc.contributor.authorSantos, Erinéia da Silva
dc.contributor.authorPereira, Jéssyca Emanuella Saraiva
dc.contributor.authorBarros Neto, Eduardo Lins de
dc.date.accessioned2021-11-22T18:58:43Z
dc.date.available2021-11-22T18:58:43Z
dc.date.issued2018-10-19
dc.description.resumoAdsorption of Cu (II) ions using carnauba straw powder (CSP) as biosorbent was studied in batch experiments. The adsorption process was evaluated considering copper solution concentration and pH, biosorbent size and dosage, adsorption time, and temperature. The best results were obtained at pH 6 and 10 g/L of biosorbent. A decrease in cupric ion uptake was observed with the increase of Cu (II) concentration. The Cu (II) removal capacity was improved with the reduction of the biosorbent granule size. Adsorption data were well fitted by the Langmuir isotherm and pseudo-second order kinetic model. The process was both spontaneous and exothermic. Best adsorption results were obtained at 50 °C, reaching 9.5 mg Cu (II)/g biosorbentpt_BR
dc.identifier.citationSILVA, ALFREDO JOSÉ FERREIRA DA; MOURA, MARIA CARLENISE PAIVA DE ALENCAR; SANTOS, ERINÉIA DA SILVA; PEREIRA, JÉSSYCA EMANUELLA SARAIVA ; BARROS NETO, EDUARDO LINS DE. Copper removal using carnauba straw powder: equilibrium, kinetics, and thermodynamic studies. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, v. 6, p. 6828-6835, 2018. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S2213343718306365?via%3Dihub. Acesso em: 24 jun. 2021. https://doi.org/10.1016/j.jece.2018.10.028.pt_BR
dc.identifier.doi10.1016/j.jece.2018.10.028
dc.identifier.issn2213-3437
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/44968
dc.languageenpt_BR
dc.publisherElsevierpt_BR
dc.rightsAttribution 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/br/*
dc.subjectAdsorptionpt_BR
dc.subjectCopperpt_BR
dc.subjectIsothermpt_BR
dc.subjectCarnauba straw powderpt_BR
dc.subjectKineticspt_BR
dc.subjectThermodynamicpt_BR
dc.titleCopper removal using carnauba straw powder: Equilibrium, kinetics, and thermodynamic studiespt_BR
dc.typearticlept_BR

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