Journal
IONICS
Volume 16, Issue 8, Pages 733-739Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11581-010-0456-8
Keywords
Adsorption; Vermiculite; Heavy metals; Kinetic; Pure clay mineral
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The adsorption of CLOD and Cr(III) ions by pure clay mineral, vermiculite, was examined in aqueous solution with respect to the adsorbent dose, initial metal ion concentration, pH, and contact time. The studies showed that vermiculite can be used as an adsorbent material for the moderate removal of Cr(III) and Cu(II) from aqueous solutions. Lagergren first-order, pseudo-second-order, and intraparticle diffusion models were used to describe the kinetic data. The kinetics of adsorption indicates that the process fitted well the intraparticle diffusion model.
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