UPTAKE OF URANIUM IONS BY MOLECULAR-SIEVE

被引：0

作者：

QADEER, R ^{[1
]}

HANIF, J ^{[1
]}

KHAN, M ^{[1
]}

SALEEM, M ^{[1
]}

机构：

[1] QUAID I AZAM UNIV,DEPT CHEM,ISLAMABAD,PAKISTAN

来源：

RADIOCHIMICA ACTA | 1995年 / 68卷 / 03期

关键词：

URANIUM; MOLECULAR SIEVE; ADSORPTION; AQUEOUS SOLUTION; XRF;

D O I：

暂无

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Adsorption of uranium on molecular sieve ((13)X-type) has been studied as a function of shaking time, amount of adsorbent, pH, concentration of adsorbate and temperature. Uranium adsorption obeys the Langmuir and Dibinin-Rudushkevich isotherms equations. The values of Delta H degrees and Delta S degrees were calculated from the slopes and intercepts of plots between 1n K-D versus 1/T. The results show endothermic heat of adsorption but negative free energy value indicating that the process of uranium adsorption on molecular sieve is favoured at high temperature. The influence of various cations and anions on uranium adsorption were also studied.

引用

页码：197 / 201

页数：5

共 50 条

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