Adsorption of diclofenac sodium from aqueous solutions on activated carbon


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Abstract

The kinetics and thermodynamics of the adsorption of diclofenac sodium from aqueous solutions of different concentrations at different temperatures on activated carbon obtained from coconut shell were studied. It was found that the adsorption of diclofenac sodium is described by a pseudo-first-order equation and the adsorption isotherm at its concentration to 750 mg/L in the initial solution is adequately described by the Langmuir equation. It was found that the adsorption of diclofenac sodium is an endothermic process.

About the authors

M. D. Vedenyapina

Zelinsky Institute of Organic Chemistry; Moscow Technological Institute WTU

Author for correspondence.
Email: mvedenyapina@yandex.ru
Russian Federation, Leninskii pr. 47, Moscow, 119991; Moscow

P. Stopp

Gottfried Wilhelm Leibniz Universität Hannover

Email: mvedenyapina@yandex.ru
Germany, Hannover, D-30060

D. Weichgrebe

Gottfried Wilhelm Leibniz Universität Hannover

Email: mvedenyapina@yandex.ru
Germany, Hannover, D-30060

A. A. Vedenyapin

Zelinsky Institute of Organic Chemistry; Moscow Technological Institute WTU

Email: mvedenyapina@yandex.ru
Russian Federation, Leninskii pr. 47, Moscow, 119991; Moscow

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