Abstract
A new chelating biosorbent with iminodiacetate functionality was prepared. This biosorbent showed a powerful uptake behavior towards Rh(III) from its dilute solutions. The kinetic and thermodynamic characteristics of the uptake process were evaluated using the batch method. The recovery percentage value obtained is comparable to that of a commercial one with the same functionality (Chelest IRY) but with faster kinetics. Fast and selective adsorption of Rh(III) from Pd (II) and Pt(IV) during column experiments makes the resin promising in the field of Rh(III) recovery from the spent catalytic convertors. The adsorbed rhodium was recovered simply by burning the spent resin.