Sorption of molybdenum(VI) ions on natural mineral sorbents

被引：2
作者：
Sanzhanova, S. S. [1 ]
Zonkhoeva, E. L. [1 ]
机构：
[1] Russian Acad Sci, Inst Geol, Siberian Branch, Ulan Ude 670047, Russia
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2017年 / 91卷 / 11期
关键词：
natural sorbents; zeolite tuffs; molybdenum(VI);
D O I：
10.1134/S0036024417110206
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The sorption of Mo(VI) ions on natural sorbents (zeolite tuffs and clinker) is investigated. It is estimated that zeolite tuffs sorb polymer forms of Mo(VI) ions in acidic media, while the monomer form of molybdate ion is sorbed in basic media. It is concluded that the rate of sorption of molybdenum(VI) ions on zeolite tuffs is regulated by an intradiffusional mechanism. Values of the activation energy indicate that the adsorption of molybdenum(VI) ions on zeolite tuffs is governed by a physical mechanism. The excretion of crystalline phase (probably calcium molybdate) on surfaces of zeolite tuff is estimated via scanning electron microscopy.
引用
收藏
页码：2219 / 2224
页数：6
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