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Journal of Zhejiang University SCIENCE B 2005 Vol.6 No.5 P.353~356

10.1631/jzus.2005.B0353


Adsorption of ruthenium ions on activated charcoal: influence of temperature on the kinetics of the adsorption process


Author(s):  QADEER Riaz

Affiliation(s):  Pakistan Atomic Energy Commission, Islamabad, Pakistan

Corresponding email(s):   drriazqadeer@yahoo.com

Key Words:  Ruthenium, Activated charcoal, Adsorption, Kinetics, Thermodynamic parameters, Nitric acid solution


QADEER Riaz. Adsorption of ruthenium ions on activated charcoal: influence of temperature on the kinetics of the adsorption process[J]. Journal of Zhejiang University Science B, 2005, 6(5): 353~356.

@article{title="Adsorption of ruthenium ions on activated charcoal: influence of temperature on the kinetics of the adsorption process",
author="QADEER Riaz",
journal="Journal of Zhejiang University Science B",
volume="6",
number="5",
pages="353~356",
year="2005",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2005.B0353"
}

%0 Journal Article
%T Adsorption of ruthenium ions on activated charcoal: influence of temperature on the kinetics of the adsorption process
%A QADEER Riaz
%J Journal of Zhejiang University SCIENCE B
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%P 353~356
%@ 1673-1581
%D 2005
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2005.B0353

TY - JOUR
T1 - Adsorption of ruthenium ions on activated charcoal: influence of temperature on the kinetics of the adsorption process
A1 - QADEER Riaz
J0 - Journal of Zhejiang University Science B
VL - 6
IS - 5
SP - 353
EP - 356
%@ 1673-1581
Y1 - 2005
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2005.B0353


Abstract: 
Influence of temperature on ruthenium adsorption on activated charcoal from 3 mol/L HNO3 solutions was investigated in the temperature range of 288 K to 308 K. It was observed that the rise in temperature increases the adsorption of ruthenium ions on activated charcoal and follows the kinetics of first order rate law with rate constant values 0.0564–0.0640 min−1 in the temperature range of 288 K to 308 K respectively. The activation energy for the adsorption process was found to be 1.3806 kJ/mol. Various thermodynamics quantities namely ∆H, ∆S and ∆G were computed from the equilibrium constant KC values. The results indicated a positive heat of adsorption, a positive ∆S and a negative ∆G.

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