2010•Bayero Journal of Pure and Applied SciencesOpen access

Adsorption studies for the removal of Cr(VI) ion from aqueous solution

MB Ibrahim, WLO Jimoh

Abstract

The adsorption characteristics of Cr(VI) in the form of Cr2O7(-2) ion from aqueous solution onto synthetic exchanger Amberlite IRA 400(Cl) resin was studied from UV – visible spectrphotometric measurement using DPC at 580nm. The efficiency of the adsorbent was judged from the variation of the % adsorption with (i) contact time, (ii) adsorbent dose and (iii) initial metal ion concentration. For the optimum adsorbent dose, the highest % adsorption was found to be 99.92% at 30ppm metal ion concentration. Keywords: adsorption, adsorbent, metal ion

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Key concepts: Amberlite, Adsorption, Aqueous solution, Ion exchange, Metal, Metal ions in aqueous solution, Chemistry, Ion