Interpretation of transition metal sorption behavior by oxidized active carbons and other adsorbents

被引：31

作者：

Strelko, V ^{[1
]}

Malik, DJ ^{[1
]}

Streat, M ^{[1
]}

机构：

[1] Univ Loughborough, Dept Chem Engn, Loughborough LE11 3TU, Leics, England

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2004年 / 39卷 / 08期

关键词：

oxidized carbon; transition metal sorption; selectivity; The Irving-Williams series; surface oxygen complexes;

D O I：

10.1081/SS-120030791

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Several active carbons derived from different precursors and oxidized by different techniques have been characterized by N-2 porosimetry and various titration methods. The adsorption of Cu2+, Ni2+, CO2+' Zn2+ and Mn2+ from aqueous solutions was studied using these carbons and carboxylic resin Purolite C104. The affinity series Mn2+ < CO2+ < Ni2+ < Cu2+ > Zn2+ established in adsorption experiments coincides with the Irving-Williams order and is independent of the method and extent of adsorbent oxidation, carbon precursor, porous structure, and type of adsorbent. Enhanced selectivity of adsorbents towards Cu2+ is related to the electronic structure of this ion.

引用

页码：1885 / 1905

页数：21

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