Adsorption Study of O- amino acetophenone From Its Aqueous Solution On The Surface Of Carboxy Methyl Cellulose Graftting By Acrylamid

Abstract

This research studies  the ability of grafting carboxy methyl cellulose by acrylamide for adsorption of  organic compound from their aqueous solutions the compound in question o-aminoacetophenone. Adsorption isotherm of the studied compound was determined and was similar to s-type isotherms . the resulting adsorption was of physical type and obeyed the Freundlich equation, where the amount of adsorbed material increasing equilibrium. The research also includes a thermodynamic study of the adsorption process. The results showed that 250C is the optimal temperature in terms of the amount of adsorbed material, and that the adsorption process is spontaneous, exothermic, and tends towards uniformity. We also conducted a study of the effect of particle size on the adsoption process. The results showed that the effectiveness of the adsorbing surface in receiving the molecules of the adsorbed compounds increases with increasing surface area. An increase in the amount of adsorbed material was observed with decreasing particle size. The surface properties and crystal morphology of CMC polymer particles were studied before and after acrylamide doping using x-ray and infrared spectroscopy. The results showed that the CMC polymer is amorphous and has many cavities and irregularities before the doing process, while after. Acrylamide doping it has more homogeneous regular crystal morphology. In this research, we also studied the effect of the doping ratio on the amount of adsorbent. The results indicated that the amount of adsorbed quantity increases with increasing grafting percentage.