Modeling mono- and multi-component adsorption of cobalt(II), copper(II), and nickel(II) metal ions from aqueous solution onto a new carboxylated sugarcane bagasse. Part I: Batch adsorption study.

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorRamos, Stela Nhandeyara do Carmo-
Autor(es): dc.creatorXavier, Amália Luísa Pedrosa-
Autor(es): dc.creatorTeodoro, Filipe Simões-
Autor(es): dc.creatorElias, Megg Mandonyk-
Autor(es): dc.creatorGonçalves, Fernanda Jorge-
Autor(es): dc.creatorGil, Laurent Frédéric-
Autor(es): dc.creatorFreitas, Rossimiriam Pereira de-
Autor(es): dc.creatorGurgel, Leandro Vinícius Alves-
Data de aceite: dc.date.accessioned2019-11-06T13:35:45Z-
Data de disponibilização: dc.date.available2019-11-06T13:35:45Z-
Data de envio: dc.date.issued2015-12-15-
Data de envio: dc.date.issued2015-12-15-
Data de envio: dc.date.issued2015-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/5979-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/558970-
Descrição: dc.descriptionA new carboxylated-functionalized sugarcane bagasse (STA) was prepared through the esterification of sugarcane bagasse with trimellitic anhydride. The optimized synthesis conditions yield STA with a percent weight gain of 73.9% and the number of carboxylic acid groups accounted for 3.78 mmol/g. STA was characterized by FTIR, elemental analysis, TGA, PZC, and SEM. Adsorption kinetics followed a pseudosecond- order model. The adsorption rate constant showed the following order: k2,Ni 2+ > k2,Cu 2+ > k2,Co 2+. Four mono- and multi-component isotherm models were used to model the adsorption systems. Monocomponent experimental data were fitted to Langmuir and Sips models; whereas, multicomponent data were fitted to modified extended Langmuir and P-factor models. The maximum adsorption capacities (Qmax,mono) obtained from the Langmuir model were 1.140, 1.197, and 1.563 mmol/g for Co2+, Cu2+, and Ni2+, respectively. The competitive studies demonstrated that the multicomponent adsorption capacity (Qmax,multi) was smaller than Qmax,mono, as a result of the interaction between the metal ions. Desorption studies showed that all metal ions could be fully desorbed from STA.-
Idioma: dc.languagept_BR-
Direitos: dc.rightsO Periódico Industrial Crops and Products concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3734740462321-
Palavras-chave: dc.subjectSugarcane bagasse-
Palavras-chave: dc.subjectTrimellitic anhydride-
Título: dc.titleModeling mono- and multi-component adsorption of cobalt(II), copper(II), and nickel(II) metal ions from aqueous solution onto a new carboxylated sugarcane bagasse. Part I: Batch adsorption study.-
Aparece nas coleções:Repositório Institucional - UFOP

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