Equilibrium and Kinetic Studies of Cu(Ii) Removal from Aqueous Solutions Using a Kenyan Micaceous Mineral.


  • John Namakwa Wabomba University of Nairobi, Kenya
  • Paul Mwanza Shiundu University of Nairobi, Kenya
  • John Mmari Onyari University of Nairobi, Kenya
  • Ernest Yanful University of Western Ontario, Canada




Copper, Mica-K, adsorption, equilibrium and kinetics, isotherm


Copper (II) sorption on a Kenyan micaceous mineral (Mica-K) was studied in the batch mode. The effects of different experimental parameters such as; initial concentration, contact time, sorbent dose, pH, particle size, agitation speed, competition and temperature on the kinetics of copper removal were studied. The sorption pattern of copper onto Mica-K followed Langmuir and Freundlich isotherms. Thermodynamic parameters for copper sorption on Mica-K were also determined. X-ray photoelectron spectroscopic (XPS) analysis of metal ion-equilibrated Mica-K, demonstrated that copper, cadmium and Zinc containing nodules existed on the surface of Mica-K.


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Author Biographies

John Namakwa Wabomba, University of Nairobi, Kenya

Lecturer, Department of Chemistry

Paul Mwanza Shiundu, University of Nairobi, Kenya

Professor, Deputy Vice - Chancellor (Academics, Research And Students)

Technical University of Kenya

John Mmari Onyari, University of Nairobi, Kenya

Professor and Chairman, Department of Chemistry

Ernest Yanful, University of Western Ontario, Canada

Professor and Chair, Civil and Environmental Engineering


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How to Cite

Wabomba, J. N., P. M. Shiundu, J. M. Onyari, and E. Yanful. “Equilibrium and Kinetic Studies of Cu(Ii) Removal from Aqueous Solutions Using a Kenyan Micaceous Mineral”. International Journal for Innovation Education and Research, vol. 5, no. 4, Apr. 2017, pp. 181-98, doi:10.31686/ijier.vol5.iss4.654.