Adsorption of some hazardous radionuclides on cerium(IV) antimonate

被引：11

作者：

Aly, HF ^{[1
]}

Zakaria, ES ^{[1
]}

Shady, SA ^{[1
]}

El-Naggar, IM ^{[1
]}

机构：

[1] Atom Energy Author, Hot Labs Ctr, Cairo, Egypt

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 1999年 / 241卷 / 02期

关键词：

Zinc; Cobalt; Radionuclide; Cerium; Strontium;

D O I：

10.1007/BF02347470

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Cerium(IV) antimonate was prepared by dropwise addition of 0.6M antimony pentachloride and 0.6M cerium ammonium nitrate solutions by a molar ratio of Ce/Sb 0.75. Exchange isotherms for H+/Co2+, H+/Cs+, H+/Zn2+, H+/Sr2+ and H+/Eu3+ were determined at 25, 40 and 60 degrees C. Besides, it was proved that europium is physically adsorped, while zinc, strontium, cobalt and cesium are chemically adsorbed. Moreover, the heat of adsorption of zinc, strontium, cobalt and cesium on cerium(IV) antimonate was calculated and indicated that cerium(IV) antimonate is of endothermic behavior towards these ions. Also the distribution coefficients of these ions were determined and it was found that the selectivity is in the order: Eu3+ > Sr2+ > Cs+ > Na+.

引用

页码：331 / 336

页数：6

共 12 条

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