Study of the Sorption of Cesium Cations by a Sorbent Based on Titanium Phosphate

被引：2
|
作者：
Maslova, M., V [1 ]
Ivanenko, V. I. [1 ]
Gerasimova, L. G. [1 ]
Vilkova, N. L. [1 ]
机构：
[1] Russian Acad Sci, Kolsk Sci Ctr, Fed Res Ctr, Tananaev Inst Chem & Technol Rare Elements & Mine, Apatity, Murmansk Oblast, Russia
来源：
PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES | 2019年 / 55卷 / 05期
基金：
俄罗斯科学基金会;
关键词：
sorbents; titanium phosphate; cesium; adsorption equilibria; sorption kinetics;
D O I：
10.1134/S2070205119050174
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The effect of temperature and the cesium concentration in the external solution on the sorption capacity of titanium phosphate obtained upon the heterogeneous interaction of the (NH4)(2)TiO(SO4)(2) . H2O crystalline salt with phosphoric acid is studied. Sorption on titanium phosphate is shown to be best described by the Langmuir isotherm. When describing the sorption kinetics of solutions, it is necessary to consider both the possibility of diffusion and adsorption limiting the process rate. The use of the chemical kinetic models shows that the stage of chemical interaction of metal ions with functional groups of the sorbent also contributes to the overall rate of the process.
引用
收藏
页码：833 / 840
页数：8
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