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|Type:||Artigo de periódico|
|Title:||Adsorption Of Cu(ii), Zn(ii), Cd(ii), Hg(ii) And Pb(ii) From Aqueous Solutions On A 2-mercaptobenzimidazole-modified Silica Gel|
|Abstract:||The chemically modified silica, obtained by reacting 2-mercaptobenz-imidazole with 3-chloropropyl silica gel, was used to adsorb Cu(II), Zn(II), Cd(II) and Pb(II) from aqueous solutions at various pH. Between pH 3-5, the order of selectivity was Hg(II) > Cd(II) ≫ Cu(II) ∼ Zn(II) ∼ Pb(II). Under batch conditions retentions of 100% were achieved for all metals except for Pb(II) where 93% was attained. Under column conditions recoveries of 100% were obtained for all metals. © 1990 Springer-Verlag.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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