Removal of cobalt (II), copper (II), and nickel (II) ions from aqueoussolutions using phthalate - functionalized sugarcane bagasse : mono - and multicomponent adsorption in batch mode.

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorRamos, Stela Nhandeyara do Carmo-
Autor(es): dc.creatorXavier, Pedrosa-
Autor(es): dc.creatorTeodoro, Filipe Simões-
Autor(es): dc.creatorGil, Laurent Frédéric-
Autor(es): dc.creatorGurgel, Leandro Vinícius Alves-
Data de aceite: dc.date.accessioned2025-08-21T15:05:37Z-
Data de disponibilização: dc.date.available2025-08-21T15:05:37Z-
Data de envio: dc.date.issued2016-07-29-
Data de envio: dc.date.issued2016-07-29-
Data de envio: dc.date.issued2016-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/6700-
Fonte completa do material: dc.identifierhttps://doi.org/10.1016/j.indcrop.2015.10.035-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1002292-
Descrição: dc.descriptionThis study describes, in detail, the chemical modification of sugarcane bagasse with phthalic anhydrideto produce a carboxylate-functionalized sugarcane bagasse (SPA). The optimized modification condi-tions yielded SPA with a percent weight gain of 77.08% and an amount of carboxylic acid groups of 4.76mmol/g. The SPA was characterized by PZC, FTIR, elemental analysis, TGA, and SEM-EDX. An SPA adsor-bent was used to remove Co2+, Cu2+, and Ni2+from aqueous solution in mono- and multicomponentsystems in batch mode. The adsorption kinetics followed a pseudo-second-order model. The adsorptionrate constants assumed the following order: k2,Co2+> k2,Ni2+> k2,Cu2+. Four mono- and multicomponentisotherm models were used to model the adsorption data. Monocomponent data were well described bythe Langmuir model, whereas bicomponent data were well described by the modified extended Lang-muir and P-Factor models. The maximum adsorption capacities (Qmax,mono) for the Langmuir model were0.561, 0.935, and 0.932 mmol/g for Co2+, Cu2+, and Ni2+, respectively. Adsorption in bicomponent systemsrevealed that Cu2+suppressed the adsorption of Co2+and Ni2+, whereas Ni2+suppressed the adsorptionof Co2+. Desorption studies revealed that the SPA adsorbent could be fully desorbed with a 1 mol/L HNO3solution.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsaberto-
Direitos: dc.rightsO periódico Industrial Crops and Products concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3898811060759.-
Palavras-chave: dc.subjectSugarcane bagasse-
Palavras-chave: dc.subjectAdsorption-
Palavras-chave: dc.subjectDesorption-
Palavras-chave: dc.subjectMetal ion-
Palavras-chave: dc.subjectPhthalic anhydride-
Título: dc.titleRemoval of cobalt (II), copper (II), and nickel (II) ions from aqueoussolutions using phthalate - functionalized sugarcane bagasse : mono - and multicomponent adsorption in batch mode.-
Aparece nas coleções:Repositório Institucional - UFOP

Não existem arquivos associados a este item.