alexa Abstract | Removal study of imidacloprid from aqueous solution by adsorption onto polyacrylamide cross-linked

Journal of Chemical and Pharmaceutical Research
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The polymeric hydrogel was used as an adsorbent for removing Imidacloprid from aqueous solution. The adsorption experiments were carried out by using Visible- spectrophotometer. The effect of pH, existing salt, initial pesticide concentration and temperature were studies. The data was found that Freundlich isotherm model fits and the adsorption isotherms are of S-curve type according to Giles classification. The adsorption phenomenon was examined as a function of temperature (10, 15, 20, 25 and 30oC). The extent of adsorption of Imidacloprid on hydrogel was found to decrease with increasing temperature (exothermic process). The basic thermodynamic functions have also been calculated. The amount of dye adsorbed on the hydrogel surface at different pH values showed an increase in the following order: 10 < 8 < 6 < 5 < 4 < 2, the adsorption process is affected by the electrolyte concentration. The results indicated an increase in adsorption of Imidacloprid in the presence of sodium chloride.

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Author(s): L S Jasim AlHayder and M H Jasim ALJuboory


Imidacloprid, polyacrylamide, adsorption, hydrogel

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