Abstract

Mehdi Vadi and Issa Hadipour

In this research by equilibrium adsorption isotherms of vitamin B2 (Ribo Flavin) on carbon nano-tubes having the multi wall through several discontinues method has been studied.with the help of spectro photometer (UV / VIS) adsorption chart based on the wavelength of vitamin B2 has been obtained, and the relevant graph is plotted .by considering factor of concentration, the concentration necessary for maximum adsorption of vitamin B2 on carbon nano-tubes and thus the maximum adsorption rate was determined. To attract the highest concentration of vitamin B2 is 10ppm which is fitted to experimental vitamin B2 absorption using several models performed. The results of experiments with models Freundlich, Langmuir, and Temkin were conducted and various parameters of this model for adsorbing carbon nano-tubes obtained. According to the error calculated for each model, Freundlich equation compared with other models have the best harmong experimental results.

Isotherm; Adsorption; Carbon nano-tubes; Vitamin B2

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