A radiochemical study on the thermodynamics of cesium adsorption on potassium copper nickel hexacyanoferrate(II) from aqueous solutions

  • Malik Muhammad Ishfaq
  • H. M. A. Karim
  • M. Ali Khan
Article
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Abstract

This paper reports a radiochemical study on the themodynamics of cesium adsorption on potassium copper nickel hexacyanoferrate(II) (KCNF) using134Cs radionuclide as a radiotracer. The values of themodynamic parameters like ΔH o , ΔS o and ΔG o have been calculated using the temperature dependence of cesium adsorption on KCNF. These values indicate the endothermic nature of the adsorption process. Freundlich and Langmuir izotems have shown their applicability for the adsorption of cesium on KCNF at different temperatures and their corresponding constants have been calculated and interpreted. The Dubinin-Radushkevich (D-R) equation has also been applied to the adsorption data and the values of mean free energies of the adsorption process at different temperatures have been evaluated. These values indicate that the adsorption of cesium on KCNF is expected to follow an ion exchange process.

Keywords

Copper Nickel Aqueous Solution Free Energy Inorganic Chemistry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Akadémiai Kiadó 1997

Authors and Affiliations

  • Malik Muhammad Ishfaq
    • 1
  • H. M. A. Karim
    • 2
  • M. Ali Khan
    • 2
  1. 1.Nuclear Chemistry DivisionPakistan Institute of Nuclear Science and TechnologyIslamabadPakistan
  2. 2.Institute of ChemistryUniversity of the PunjabLahorePakistan

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