Adsorption of metallic cations on silica gel-immobilized 8-hydroxyquinoline

被引：30

作者：

Bernal, JP ^{[1
]}

De San Miguel, ER ^{[1
]}

Aguilar, JC ^{[1
]}

Salazar, G ^{[1
]}

De Gyves, J ^{[1
]}

机构：

[1] Univ Nacl Autonoma Mexico, Fac Quim, Dept Quim Analit, Mexico City 04510, DF, Mexico

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2000年 / 35卷 / 10期

关键词：

D O I：

10.1081/SS-100100247

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

TLC-grade silica gel was functionalized with 8-hydroxyquinoline via a catalyzed Mannich amminomethylation reaction. The resulting solid was characterized by FT-IR and used as a sorbent for 0.05-5 mmol.L-1 Cu(II), Cd(II), Zn(II), Pb(II), and Fe(III) from aqueous solutions in the batch mode. Experiments were carried our in both single and multiple cation solutions. The influence of the aqueous media composition on the adsorption process, the possible adsorbed species, and the adsorption kinetics are discussed. Overall equilibrium constants for these processes are reported.

引用

页码：1661 / 1679

页数：19

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