CHARACTERIZATION THE CATION EXCHANGERS BASED ON MICROCRYSTALLIN CELLULOSE AND ITS APPLICATION
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Date
2013
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Publisher
Sebha University
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.