Adsorption behaviors of high-valence metal ions on desferrioxamine B immobilization nylon 6,6 chelate fiber under highly acidic conditions.
Adsorption behaviors of high-valence metal ions on desferrioxamine B immobilization nylon 6,6 chelate fiber under highly acidic conditions.
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DOI：
10.1016/j.jcis.2007.02.079
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发表时间：
2007-09
影响因子：
9.9
通讯作者：
Y. Takagai;Atsushi Takahashi;H. Yamaguchi;T. Kubota;S. Igarashi
中科院分区：
文献类型：
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作者：
Y. Takagai;Atsushi Takahashi;H. Yamaguchi;T. Kubota;S. Igarashi
研究了强酸性条件下去铁胺B（DFB）固定化尼龙6，6螯合纤维对高价金属离子Zr（IV）、Hf（IV）、Ti（IV）、V（V）、Nb（V）、Ta（V）和Mo（IV）的吸附行为。溶剂萃取法对DFB与高价金属离子的络合物无选择性萃取，但在DFB固定化尼龙6，6螯合纤维上，只有锆离子的吸附率高于其他高价金属离子。通过化学固定化处理，使DFB的吸附性能受到限制。特别是具有相似化学性质的铪离子和锆离子在强酸性水溶液中表现出不同的吸附行为。锆离子的定量吸附量可达13.5 μmol/g。
Adsorption behaviors of the high-valence metal ions Zr(IV), Hf(IV), Ti(IV), V(V), Nb(V), Ta(V), and Mo(IV) on desferrioxamine B (DFB) immobilization nylon 6,6 chelate fiber was investigated under highly acidic conditions. Though the complexes of DFB and the high-valence metal ions were extracted without selectivity by solvent extraction, the only zirconium ions showed higher adsorption percentages than that of other high-valence metal ions on the DFB immobilization nylon 6,6 chelate fiber. Adsorption properties were caused that limited the freedom of DFB by chemical immobilization. Especially, hafnium ions and zirconium ions, which have similar chemical properties, showed different adsorption behavior in highly acidic aqueous solutions. Zirconium ions were quantitatively adsorbed up to 13.5 μmol/g.