Kinetics of Aqueous Cu(II) Biosorption onto <i>Thevetia peruviana</i> Leaf Powder
Himani Medhi, Priyadarshi Roy Chowdhury, Pulakananda D. Baruah, Krishna G. Bhattacharyya
Abstract
rather than Freundlich and Temkin isotherm models, which confirmed the chemical interaction between the sorbent and sorbate. FT-IR and SEM-EDAX analyses have also been used to confirm the adsorption of Cu(II) onto the TP surface. The present study revealed 99.7% Cu(II) desorption using 0.8 N HCl as the desorbent accompanied by a 69.71% regeneration efficiency of the TP biosorbent. After desorption of Cu(II), the regenerated TP could be disposed of in soil. The encouraging results revealed that TP could be used as an alternative and low-cost biosorbent for the removal of heavy metals from aqueous solutions.
Topics & Concepts
BiosorptionNuclear chemistryAqueous solutionChemistryAdsorptionKineticsCopperSpecific surface areaOrganic chemistryPhysicsSorptionQuantum mechanicsCatalysisAdsorption and biosorption for pollutant removalClay minerals and soil interactionsAdsorption, diffusion, and thermodynamic properties of materials