Evaluation of the Adsorptive Capacity of Plantain (Musa paradisiaca) Parts in the Removal of Lead (Pb) ions from Aqueous Medium
Abstract
Heavy metal pollution, particularly lead, poses a significant threat to the environment and human health. This study investigated the use of plantain plant parts (leaves, trunk, and roots) as a low-cost and effective adsorbent for removing lead(II) ions from aqueous solutions. The results demonstrated that plantain leaves exhibited the highest lead removal efficiency (80%), followed by roots (53.33%) and trunks (26.67%). The Langmuir adsorption isotherm model provided the best fit for the experimental data, suggesting monolayer adsorption. The kinetic data were best described by the pseudo-second-order model, indicating chemisorption as the rate-limiting step.
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