ADSORPTION OF GADOLINIUM ON ACTIVATED-CHARCOAL FROM ELECTROLYTIC AQUEOUS-SOLUTION

被引：16

作者：

QADEER, R ^{[1
]}

HANIF, J ^{[1
]}

SALEEM, M ^{[1
]}

AFZAL, M ^{[1
]}

机构：

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

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES | 1992年 / 159卷 / 01期

关键词：

D O I：

10.1007/BF02041028

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Adsoprtion of gadolinium on activated charcoal has been studied as a function of shaking time, pH, concentration of adsorbate and temperature. Gadolinium adsorption obeys the Langmuir isotherm. DELTA-H-degrees and DELTA-S-degrees were calculated from the slope and intercept of the In K(D) 1/T plot. The influence of different cations and anions on gadolinium adsorption has been examined. The adsorption of other metal ions on activated charcoal has been studied under optimum conditions to check the selectivity of gadolinium adsorption. Consequently, gadolinium was removed from Ni, V, Zn, Cu, Rb, Sr and Mn. More than 97% of the adsorbed gadolinium on activated charcoal can be recovered with 35 ml of 3M HNO3 solution.Wavelength dispersive X-ray fluorescence spectrometer was used for measuring gadolinium concentration.

引用

页码：155 / 165

页数：11

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