Artículos de revistas
Preparação de membranas de acetato de celulose organomodificadas para adsorção dos íons Cu(II), Cd(II), Mn(II) e Ni(II)
Fecha
2010-01-01Registro en:
Química Nova. Sociedade Brasileira de Química, v. 33, n. 5, p. 1135-1140, 2010.
0100-4042
10.1590/S0100-40422010000500025
S0100-40422010000500025
WOS:000280479300025
S0100-40422010000500025.pdf
1509480515046572
0000-0002-2042-018X
Autor
Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
Institución
Resumen
Cellulose acetate polymeric membranes had been prepared by a procedure of two steps, combining the method of phase inversion and the technique of hydrolysis-deposition. The first step was the preparation of the membrane, and together was organomodified with tetraethylortosilicate and 3-aminopropyltrietoxysilane. Parameters that exert influence in the complexation of the metallic ion, as pH, time of complexation, metal concentration, had been studied in laboratory using tests of metal removal. The membranes had presented resistance mechanics and reactivity to cations, being able to be an alternative for the removal, daily pay-concentration or in the study of the lability of metals complexed.