Elimination of crystal violet from synthetic medium by adsorption using unmodified and acid-modified eucalyptus leaves with MPR and GA application

The aim of this investigation concerns the elimination by batch adsorption method of a primary (cationic) textile dye (Crystal Violet) from the synthetic medium, using raw and acid-modified eucalyptus leaves. Parametric studies, such as pH (2-10), unmodified and acid-modified eucalyptus leaves dose (1-10 g L-1), time (5-300 min), and initial strength of CV (10-300 mg L-1) are performed on the elimination of Crystal Violet from the Synthetic Medium. The R-P model gives the maximum coefficient of correlation (R-2 = 0.99), which denotes the best fitting isotherms with the investigational data from the other isotherms. The maximal capacity of adsorption is 141 mg g(-1) for Crystal Violet (CV) on PEUL at 25 degrees C and pH7. The kinetics study of the CV elimination signifies the pseudo 2nd order kinetics model gives the acceptable fitting rate equation (R-2 = 0.99) with the investigational data. Intraparticle diffusion model, IPD implies it's not only the rate-limiting step. The overall outcome recommends eucalyptus leaves probably utilized as a low-cost environment-friendly adsorbent for the de-pollution of effluents laden with basic (cationic) textile dye (CV). MPR and GA application on experimental data correctly predicted the removal percentage.