Adsorption of chromium (VI) ion from aqueous solution by succinylated mercerized cellulose functionalized with quaternary ammonium groups.

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorGurgel, Leandro Vinícius Alves-
Autor(es): dc.creatorMelo, Júlio César Perin de-
Autor(es): dc.creatorLena, Jorge Carvalho de-
Autor(es): dc.creatorGil, Laurent Frédéric-
Data de aceite: dc.date.accessioned2019-11-06T13:31:10Z-
Data de disponibilização: dc.date.available2019-11-06T13:31:10Z-
Data de envio: dc.date.issued2014-11-17-
Data de envio: dc.date.issued2014-11-17-
Data de envio: dc.date.issued2009-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/3908-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/557064-
Descrição: dc.descriptionABSTRACT: Succinylated mercerized cellulose (cell 1) was used to synthesize an anion exchange resin. Cell 1, containing carboxylic acid groups was reacted with triethylenetetramine to introduce amine functionality to this material to obtain cell 2. Cell 2 was reacted with methyl-iodide to quaternize the amine groups from this material to obtain cell 3. Cells 2 and 3 were characterized by mass percent gain, degree of amination and quaternization, FTIR and CHN. Cells 2 and 3 showed degrees of amination and quaternization of 2.8 and 0.9 mmol/g and nitrogen content of 6.07% and 2.13%, respectively. Cell 3 was used for Cr (VI) adsorption studies. Adsorption equilibrium time and optimum pH for Cr (VI) adsorption were found to be 300 min and 3.1, respectively. The Langmuir isotherm was used to model adsorption equilibrium data. The adsorption capacity of cell 3 was found to be 0.829 mmol/g. Kinetic studies showed that the rate of adsorption of Cr (VI) on cell 3 obeyed a pseudo-second-order kinetic model.-
Idioma: dc.languageen-
Direitos: dc.rightsO Periódico Bioresource Technology concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3480320490026-
Palavras-chave: dc.subjectModified cellulose-
Palavras-chave: dc.subjectTriethylenetetramine-
Palavras-chave: dc.subjectAnion exchange-
Palavras-chave: dc.subjectChromium-
Palavras-chave: dc.subjectKinetics-
Título: dc.titleAdsorption of chromium (VI) ion from aqueous solution by succinylated mercerized cellulose functionalized with quaternary ammonium groups.-
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