Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/handle/123456789/5032
Title: Adsorption of Cu(II), Cd(II) and Pb(II) from aqueous single metal solutions by succinylated twice-mercerized sugarcane bagasse functionalized with triethylenetetramine.
Authors: Gurgel, Leandro Vinícius Alves
Gil, Laurent Frédéric
Keywords: Mercerization
Sugarcane bagasse
Internal anhydride
Heavy metals
Adsorption
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 twice-mercerized sugarcane bagasse functionalized with triethylenetetramine. Water Research, Oxford, v. 43, p. 4479-4488, 2009. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0043135409004710>. Acesso em: 02 fev. 2015.
Abstract: This study describes the preparation of two new chelating materials, MMSCB 3 and 5, derived fromsuccinylated twice-mercerized sugarcane bagasse (MMSCB 1). MMSCB 3 and 5 were synthesized from MMSCB 1 using two different methods as described by Gurgel and Gil (2009). In the first method MMSCB 1 was activated with 1,3-diisopropylcarbodiimide and in the second with acetic anhydride (to form an internal anhydride) and later both were reacted with triethylenetetramine in order to obtain MMSCB 3 and 5. New obtained materials were characterized by mass percent gain, concentration of amine groups, FTIR, and elemental analysis. MMSCB 3 and 5 showed mass percent gain of 19.9 and 57.1%, concentration of amine groups of 2.0 and 2.1 mmol/g, and nitrogen content of 5.8 and 4.4%. The capacity of MMSCB 3 and 5 to adsorb Cu2þ, Cd2þ, and Pb2þ from aqueous single metal ion solutions was evaluated at different contact times, pHs, and initial metal ion concentrations. Adsorption isotherms were well fitted by Langmuir model. Maximum adsorption capacities of MMSCB 3 and 5 for Cu2þ, Cd2þ, and Pb2þ were found to be 59.5 and 69.4, 86.2 and 106.4, 158.7 and 222.2 mg/g, respectively.
URI: http://www.repositorio.ufop.br/handle/123456789/5032
metadata.dc.identifier.doi: https://doi.org/10.1016/j.watres.2009.07.017
ISSN: 0043-1354
metadata.dc.rights.license: O periódico Water Research concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3581981197511.
Appears in Collections:DEQUI - Artigos publicados em periódicos

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