Single Stage Adsorption of Procion Red MX-5B On Fish Scale

Abstract

The main purpose of this study was to investigate the adsorption of Reactive Red 2 (RR2) on a fish scale in a batch system. The optimum adsorption conditions were determined as initial pH 2.0, temperature 25 ^oC and adsorbent concentration 1 g/L. It was observed that the adsorbed  RR 2 amounts on fish scale increased with increasing initial dye concentration from. The isotherm models were applied to adsorption data and the Langmuir isotherm model was the best suitable adsorption model. The monolayer coverage capacity of fish scale for RR2 was found as 1000 mg/g.  The adsorption kinetic of this acidic dye on fish scale was described by the pseudo-second-order kinetic model. The intraparticle diffusion model was applied to the experimental data in order to describe the removal mechanism of the studied dye by fish scale.