Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/handle/123456789/5034
Title: Adsorption of Cu(II), Cd(II), and Pb(II) from aqueous single metal solutions by sugarcane bagasse and mercerized sugarcane bagasse chemically modified with succinic anhydride.
Authors: Gurgel, Leandro Vinícius Alves
Freitas, Rossimiriam Pereira de
Gil, Laurent Frédéric
Keywords: Mercerization
Modified sugarcane bagasse
Succinylation
Adsorption
Heavy metals
Issue Date: 2008
Citation: GURGEL, L. V. A.; FREITAS, R. P. de; GIL, L. F. Adsorption of Cu(II), Cd(II), and Pb(II) from aqueous single metal solutions by sugarcane bagasse and mercerized sugarcane bagasse chemically modified with succinic anhydride. Carbohydrate Polymers, v. 74, p. 922-929, 2008. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0144861708002555>. Acesso em: 02 fev. 2015.
Abstract: This work describes the preparation of new chelating material from mercerized sugarcane bagasse. The first part treats the chemical modification of non-mercerized sugarcane bagasse (SCB) and twice-mercerized sugarcane bagasse (MMSCB) with succinic anhydride. Mass percent gains (mpg) and degrees of succinylation (DS) of succinylated non- and twice-mercerized sugarcane bagasse 1 (SCB 1 and MMSCB 1) were calculated. MMSCB 1 exhibited an increase in mpg and DS of 49.2% and 0.9 mmol/g in relation to SCB 1. SCB 2 and MMSCB 2 were obtained by treatment of MMSCB 1 and SCB 1 with bicarbonate solution to release the carboxylate functions and characterized by FTIR. The second part evaluates and compares the adsorption capacity of SCB 2 and MMSCB 2 for Cu2+, Cd2+ and Pb2+ ions in an aqueous single metal solution. Adsorption isotherms were developed using Langmuir model. MMSCB 2 exhibited an increase in Qmax for Cd2+ (43.6 mg/g) and Pb2+ (83.3 mg/g) in relation to SCB 2.
URI: http://www.repositorio.ufop.br/handle/123456789/5034
metadata.dc.identifier.doi: https://doi.org/10.1016/j.carbpol.2008.05.023
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: 3581981240772.
Appears in Collections:DEQUI - Artigos publicados em periódicos

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