Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

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Original Articles: 2011 Vol: 3 Issue: 6

Novel Eco-Friendly Adsorbents for the Removal of Victoria Blue Dye

Abstract

Adsorption kinetics of removal of Victoria Blue (VB) on Commercial Activated Carbon CAC and Bentonite (clay) have been studied comparatively. This study investigated the potential use of bentonite (natural clay) as alternative adsorbent for the removal of Victoria blue (VB) from wastewater by batch adsorption technique at room temperature. The effect of adsorbent dosage, initial dye concentration, pH and contact time were experimentally studied to evaluate the adsorption capacity, kinetics and equilibrium. The dye uptake process obeyed the pseudo-first order kinetics the monolayer formation is confirmed by using Langmuir adsorption isotherm. Intra-particle diffusion studies showed that the adsorption mechanism was controlled by the diffusion process. These results indicate that bentonite could be employed as low-cost adsorbent for the alternatives for the removal of cationic dye from industrial wastewater.