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https://repositorio.ufms.br/handle/123456789/583
Tipo: | Artigo de Periódico |
Título: | Synthesis, characterization and determination of the metal ions adsorption capacity of cellulose modified with p-aminobenzoic groups |
Autor(es): | Castro, Gustavo Rocha de Alcântara, Ilton Luiz de Roldan, Paulo dos Santos Bozano, Dorotéia de Fátima Padilha, Pedro de Magalhães Florentino, Ariovaldo de Oliveira Rocha, Julio Cesar |
Abstract: | This paper describes the synthesis and characterization of p-aminobenzoic modified cellulose (Cell-PAB), as well as the separation and preconcentration of Cd(II), Cu(II), Ni(II), Pb(II) and Zn(II) ions from an aqueous medium using a Cell-PAB bath and the column technique. The quantity of p-aminobenzoic groups attached to the cellulose surface, i.e., 1.81±0.04 mmol/g, was determined by elemental analysis. The FT-IR spectra of Cell-PAB revealed characteristic bands of p-aminobenzoic groups, indicating the desired functionalization of the cellulose surface. The adsorptive capacities for the metals (Ns) Cd, Cu, Ni, Pb and Zn (Ns) were, respectively, 1.72 ± 0.02, 1.96 ± 0.02, 1.88 ± 0.04, 2.01 ± 0.03 and 1.93 ± 0.03 mmol/g. Metal separations performed in flow experiments using a column packed with 1 g of Cell-PAB and 5 mL of 1.5 mol/L HCl solution as eluent achieved an almost 100% metal ions recovery rate. |
Palavras-chave: | Celulose Metais Pesados Adsorção Cellulose Metals, Heavy Adsorption |
Editor: | Materials Research |
Citação: | CASTRO, Gustavo Rocha de et al . Synthesis, characterization and determination of the metal ions adsorption capacity of cellulose modified with p-aminobenzoic groups. Mat. Res., São Carlos, v. 7, n. 2, jun. 2004 . Disponível em <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000200018&lng=pt&nrm=iso>. acessos em 18 out. 2011. http://dx.doi.org/10.1590/S1516-14392004000200018. |
Tipo de acesso: | Acesso Aberto |
Identificador DOI: | http://dx.doi.org/10.1590/S1516-14392004000200018 |
URI: | https://repositorio.ufms.br/handle/123456789/583 |
Data do documento: | 2004 |
Aparece nas coleções: | FAENG - Artigos publicados em periódicos |
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Synthesis, characterization.pdf | 560,31 kB | Adobe PDF | ![]() Visualizar/Abrir |
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