إزالة بعض الأصباغ بطريقة الامتزاز باستخدام سطح نانو بوليمر جديد

Removal of some dyes by adsorption method using a new nano-polymer surface

Summary

The grafted The processes were used to prepare the nano co-polymers is esterification process; where the method of preparing is described as shown below: The nano co-polymer was prepared from the reaction 3.0 mole of phthalic anhydride with 1.0 mole of glycerol

In this thessis, a developed graft of nano co-polymer by esterifying glycerol and phthalic anhydride. X-ray diffraction analysis, differential scanning calorimetry, and atomic force microscopy, and infrared spectroscopy were used to analyze the nano polymer (DSC). It was determined whether synthetic nano-propensity polymers could remove methyl orange.,Wrights Stain and Eosin yellow from aqueous solutions. The effects of three distinct concentrations (1, 3, 5 and 7 ppm) and temperatures (298, 308 and 318 k) on nano-polymers have been studied. The height of the nano-average polymer was 22.04 nm. The results of the experiment clearly showed that synthetic nano-polymers were very good at totally eliminating methyl orange ,Wrights Stain and Eosin yellow from aqueous solutions.
It is evident from the drawing that the general form of adsorption isotherms is of type (S1) according to the classification of Giles). This indicates that the surface of the adsorbent material is a heterogeneous surface Also, when the covered part of the adsorbent surface increases, the adsorption temperature will decrease The increased shape of the isotherm with increasing the concentration of equilibrium confirms that the arrangement of the particles on the surface in vertical rows .
In this work, I used the Freundlich, Langmuir and Temkin equations, and applied my work to the Freundlich equation
The results showed the percentage of removal of . decreased with increasing temperature, That is, by increasing the temperature, the amount of the adsorbate material on the surface of the graft co-polymer decreases, i.e. the occurrence of an desorption process on the adsorbent surface when the temperature increases, that is, the speed of the particles diffusion on the surface of the graft co-polymer decreases, and therefore the percentage of removal will decrease when the temperature is increased.

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