Quimissorção de cátions divalentes em sílica gel modificada com ácido tioglicólico: a influência do pH e força iônica Chemisorption of divalent cations on a silica gel surface modifield with thioglycolic acid: pH influence and ionic strength

<abstract language="eng">A novel type of heavy metal adsorbent was prepared by the covalent grafting of thioglycolic acid molecules on a silica gel surface previsiouly modified with 3-aminopropyltrimethoxysilane. The amount of thioglycolic acid immobilized was 1.03 mmol per gram of s...

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Bibliographic Details
Main Authors: Kaline S. de Sousa, Vera Lúcia S. Augusto Filha, Victor Hugo e A. Pinto, Maria G. da Fonseca, José G. P. Espínola, Luiza N. H. Arakaki
Format: Article
Language:English
Published: Sociedade Brasileira de Química 2007-06-01
Series:Química Nova
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000300005