Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/handle/123456789/5095
Title: Adsorption of Cu(II), Cd(II), and Pb(II) from aqueous single metal solutions by succinylated mercerized cellulose modified with triethylenetetramine.
Authors: Gurgel, Leandro Vinícius Alves
Gil, Laurent Frédéric
Keywords: Modified cellulose
Internal anhydride
Triethylenetetramine
Adsorption
Heavy metals
Issue Date: 2009
Citation: GURGEL, 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.
Abstract: This 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.
URI: http://www.repositorio.ufop.br/handle/123456789/5095
metadata.dc.identifier.doi: https://doi.org/10.1016/j.carbpol.2008.12.014
ISSN: 0144-8617
metadata.dc.rights.license: O periódico Carbohydrate Polymers concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3581981115743.
Appears in Collections:DEQUI - Artigos publicados em periódicos

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