Removal of Oleandrin from aqueous solutions using activated charcoal from pomegranate peel and date pits surfaces

Abstract

In this search, pomegranate peel and date pits were used to prepare activated charcoal for the adsorption of oleandrin from an aqueous solution. KOH was used as the activated agent, and the charcoal was activated at 700°C for an hour, with a particle size of 600µm. The results were analyzed using UV-Visible technique. The effects of several parameters, such as temperature, PH, adsorbent quantity, and contact time, on the extraction of oleandrin were investigated. Langmuir, Freundlich, Temkin, Elovich, Harkins-Jura, and Dubinin-Radushkevich all examined the isotherm data.computation of several thermodynamic parameters, including Gibb's free energy altered (∆G), entropy (∆S), and enthalpy (∆H),. For both surfaces, the endothermic nature of the process can be seen by the positive values of (∆H) and the negative values of (∆G), which suggest that the oleandrin adsorption process is spontaneous in nature. Pseudo first order and pseudo second order rate equations were fitted using adsorption kinetics, and pseudo second order performed better than pseudo first order.