Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/handle/123456789/5038
Title: Adsorption of Cu(II), Cd(II), and Pb(II) from aqueous single metal solutions by cellulose and mercerized cellulose chemically modified with succinic anhydride.
Authors: Gurgel, Leandro Vinícius Alves
Karnitz Júnior, Osvaldo
Gil, Rossimiriam Pereira de Freitas
Gil, Laurent Frédéric
Keywords: Mercerization
Modified cellulose
Succinylation
Adsorption
Heavy metals
Issue Date: 2008
Citation: GURGEL, L. V. A. et al. Adsorption of Cu(II), Cd(II), and Pb(II) from aqueous single metal solutions by cellulose and mercerized cellulose chemically modified with succinic anhydride. Bioresource Technology, v. 99, p. 3077-3083, 2008. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0960852407005056>. Acesso em: 02 fev. 2015.
Abstract: This work describes the preparation of new chelating material from mercerized cellulose. The first part treats the chemical modification of non-mercerized cellulose (cell 1) and mercerized cellulose (cell 2) with succinic anhydride. Mass percent gains (mpg) and degree of succinylation (DS) of cell 3 (from cell 1) and cell 4 (from cell 2) were calculated. Cell 4 in relation to cell 3 exhibited an increase in mpg and in the concentration of carboxylic functions of 68.9% and 2.8 mmol/g, respectively. Cells 5 and 6 were obtained by treatment of cells 3 and 4 with bicarbonate solution to release the carboxylate functions and characterized by FTIR. The second part compares the adsorption capacity of cells 5 and 6 for Cu2+, Cd2+, and Pb2+ ions in an aqueous single metal solution. Adsorption isotherms were developed using Langmuir model. Cell 6 in relation to cell 5 exhibited an increase in Qmax for Cu2+ (30.4 mg/g), Cd2+ (86.0 mg/g) and Pb2+ (205.9 mg/g).
URI: http://www.repositorio.ufop.br/handle/123456789/5038
metadata.dc.identifier.doi: https://doi.org/10.1016/j.biortech.2007.05.072
ISSN: 0960-8524
metadata.dc.rights.license: O periódico Bioresource Technology concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3581981302997.
Appears in Collections:DEQUI - Artigos publicados em periódicos

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