Study of Pd(II) sorption from aqueous solutions on the natural and acid-modified transcarpathian clinoptilolite

被引：0
|
作者：
Korkuna, O. [1 ,2 ]
Vrublevska, T. [1 ]
Reschetilowski, W. [2 ]
机构：
[1] Ivan Franko Natl Univ, Dept Analyt Chem, UA-79005 Lvov, Ukraine
[2] Tech Univ Dresden, Inst Tech Chem, D-01062 Dresden, Germany
来源：
POLISH JOURNAL OF CHEMISTRY | 2008年 / 82卷 / 1-2期
关键词：
zeolite; palladium(II); sorption; ion-exchange; clinoptilolite;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The sorption of Pd(II) on the natural and acid-modified clinoptilolite under static conditions has been investigated. Optimal pH values for Pd(II) sorption are 4.5 from nitrate solutions and 10.0 from ammonia solutions for both sorbents respectively. The optimum grain size of both sorbents has been determined. It was found that the sorbent in the protonated form dried at 150-160 degrees C and the natural sorbent dried at 100-110 degrees C have highest sorption ability. The influence of inorganic salts of ammonium, alkali, heavy and platinum metal cations as well as some inorganic and organic anions on Pd(II) sorptive ability by the natural and H-clinoptilolite has been investigated. Pd(II) desorption from sorbents has been studied. The sorption capacity of natural and H-clinoptilolite towards Pd(II) from nitrate solutions (pH=4.2) is 977 and 3440 mu g/g respectively and for natural clinoptilolite from ammonia solutions (pH = 10.0) is 2404 mu g/g.
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页码：431 / 442
页数：12
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