Langmuir, Freundlich, Temkin and Dubinin–radushkevich Isotherms Studies of Equilibrium Sorption of Ampicilin unto Montmorillonite Nanoparticles
Journal Title: Journal of Pharmaceutical Research International - Year 2017, Vol 20, Issue 2
Abstract
Present study was accomplished to prospect the viability of using the montmorillonite (Mon) nanoparticles as an adsorbent to remove the Ampicillin under various experimental conditions. The Physico-chemical characteristics of the studied adsorbent were surveyed. Langmuir, Freundlich, Temkin and Dubinin–Radushkevich isotherms were applied to portray the data obtained from the adsorption studies. The findings showed that the highest R2 values were related to Langmuir and Dubinin–Radushkevich isotherm models. The greatest adsorption capacity (qe) for Langmuir and Dubinin–Radushkevich isotherm models were recognized to be 134.48 mg/g and 141.22 mg/g, respectively; and the separation factor was calculated to be 0.113 which is indicative of a favorable sorption. Temkin Isotherm model clarified that the heat of sorption process was 34.61 J/mol; and the mean free energy calculated by Dubinin–Radushkevich isotherm model was anticipated to be 2.56 Kj/mol which these undoubtedly demonstrate the physisorption process for Ampicillin adsorption experiments.
Authors and Affiliations
Davoud Balarak, Ferdos Kord Mostafapour, Hossein Azarpira, Ali Joghataei
Keywords
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- EP ID EP313150
- DOI 10.9734/JPRI/2017/38056
- Views 58
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