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Adsorption of Cr (VI) and Cu (II) Ions onto Kaolinite Clay

	International Journal of Recent Engineering Science (IJRES)
	© 2017 by IJRES Journal
	Volume-4 Issue-6
	Year of Publication : 2017
	Authors : S. C. Olu, P. E. Dim, A. S. Kovo, J. O. Okafor, C. I. Izuegbunam
	DOI : 10.14445/23497157/IJRES-V4I6P106

How to Cite?

S. C. Olu, P. E. Dim, A. S. Kovo, J. O. Okafor, C. I. Izuegbunam, " Adsorption of Cr (VI) and Cu (II) Ions onto Kaolinite Clay," International Journal of Recent Engineering Science, vol. 4, no. 6, pp. 28-32, 2017. Crossref, https://doi.org/10.14445/23497157/IJRES-V4I6P106

Abstract
The sorption of Cr (VI) and Cu (II) ions onto Kaolinite Clay was studied with the aim to compare the affinity of Cr (VI) and Cu (II) ions onto Ahoko Nigeria Kaolinite Clay. The potential of Ahoko Nigeria Kaolinite clay was studied with variation of initial concentration, adsorbent dosage and time. The percentage of removal of Cu (II) and Cr (VI) ions increases with increase temperature and adsorbent dosage. The Langmuir, Freundlich and Temkin isotherm model fitted to the data with Langmuir having the most appropriate fit. The kinetic study shows that it follows the pseudo-second-order model with the adsorbent having better affinity for Cu (II) ion to Cr (VI) ion.

Keywords
Adsorption, Ahoko Nigeria Kaolinite clay, Isotherms, Kinetics, Pseudo-second-order

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