Examination of Surface Adsorption Isotherms of the Complex of some Amino acids with Cr (III) ion by Carbon Nanotubes
Department of Chemistry, Firoozabad Branch, Islamic Azad University, Firoozabad, Fars (Iran).
Corresponding Author E-mail: mahdi_vadi@iaufasa.ac.ir
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The purpose of this research work, review Adsorption isotherms of complexes of some amino acids Glycine, Glutamine, Glutamic, Tryptophan and Tyrosine with chromium ion by Single–walled carbon Nanotubes (SWCNT) is a discontinuous method. By using on spectrophotometer (UV / VIS) adsorption of each complex were obtained and the relevant graph has been drawn. Review the results of experiments with models of Langmuir, Freundlich, Temkin and Dubinin-Radushkevich performed and various parameters of these models is obtained. Experimental results obtained in the temperature 295 K showed that experimental data well by these models provided and model acceptable was Freundlich model.
KEYWORDS:Adsorption; Isotherm; Amino acid; Complexe; Carbon nanotube; Chromium
