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CHARACTERIZATION THE CATION EXCHANGERS BASED ON MICROCRYSTALLIN CELLULOSE AND ITS APPLICATION

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Date
2013
Author
H. Y. ALFAGHI, H. A. Maauof , A. H . MOHAMED
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Abstract
Cation exchanger was prepared via reaction of microcrystalline cellulose with butane tetra carboxylic acid at elevated temperature. Factors affecting reaction were studied. These factors were acid concentration, reaction time and temperature. The cation exchanger sample were characterized by FT-IR spectroscopy and by estimating the carboxyl content expressed as meq.- COOH/100 g sample as well as estimation of solubility percent in distilled water. The soobtained cation exchanger sample were utilized for the removal of Pb (II) from aqueous solutions. Adsorption studies have been carried out to determine the effect of agitation time, pH, adsorbent concentration and adsorbate concentration on the adsorption capacity of Pb (II) ions. Langmuir and Freundlich models were applied in the adsorption studies. The study showed that the cation exchanger sample were effectively used in adsorption of Pb (II) from aqueous solutions. Kinetic parameters were also evaluated .The adsorption data follows second order kinetics and obeyed the Langmuir and Freundlich isotherms. The promising results obtained in this paper encourage us to use modified this materials in waste water treatment as low cost adsorbent instead of high expensive activated carbon.
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http://dspace.idpsebhau.edu.ly//handle/1/142
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