Adsorption of Cu(II), Cd(II), and Pb(II) from aqueous single metal solutions by succinylated mercerized cellulose modified with triethylenetetramine.

dc.contributor.authorGurgel, Leandro Vinícius Alves
dc.contributor.authorGil, Laurent Frédéric
dc.date.accessioned2015-04-14T17:58:12Z
dc.date.available2015-04-14T17:58:12Z
dc.date.issued2009
dc.description.abstractThis study describes the preparation of two new chelating materials derived from succinylated mercerized cellulose (cell 1). Cell 1 was activated through two different methods by using diisopropylcarbodiimide and acetic anhydride (to form an internal anhydride) and reacted with triethylenetetramine in order to obtain cell 2 and 4. New modified celluloses were characterized by mass percent gain, concentration of amine functions, elemental analysis, and infrared spectroscopy. Cell 2 and 4 showed degrees of amination of 2.8 and 2.3 mmol/g and nitrogen content of 6.07% and 4.61%, respectively. The capacity of cell 2 and 4 to adsorb Cu2+, Cd2+, and Pb2+ ions from single aqueous solutions were examined. The effect of contact time, pH, and initial concentration of metal ions on the metal ions uptake was also investigated. Adsorption isotherms were well fitted by the Langmuir model. The maximum adsorption capacity of cell 2 and 4 were found to be 56.8 and 69.4 mg/g for Cu2+; 68.0 and 87.0 mg/g for Cd2+; and 147.1 and 192.3 mg/g for Pb2+, respectively.pt_BR
dc.identifier.citationGURGEL, L. V. A.; GIL, L. F. Adsorption of Cu(II), Cd(II), and Pb(II) from aqueous single metal solutions by succinylated mercerized cellulose modified with triethylenetetramine. Carbohydrate Polymers, v. 77, p. 142-149, 2009. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0144861708005730>. Acesso em: 02 fev. 2015.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.carbpol.2008.12.014
dc.identifier.issn0144-8617
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/5095
dc.language.isoen_USpt_BR
dc.rights.licenseO periódico Carbohydrate Polymers concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3581981115743.pt_BR
dc.subjectModified cellulosept_BR
dc.subjectInternal anhydridept_BR
dc.subjectTriethylenetetraminept_BR
dc.subjectAdsorptionpt_BR
dc.subjectHeavy metalspt_BR
dc.titleAdsorption of Cu(II), Cd(II), and Pb(II) from aqueous single metal solutions by succinylated mercerized cellulose modified with triethylenetetramine.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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