Abstract
In this study, low-cost and eco-friendly hydroxyapatite (FS-HAp) particles were obtained from the raw fish scales of European Seabass (Dicentrarchus labrax), and used as adsorbent material to remove Pb(II) ions from solutions. For this purpose, experiments were carried out in the aqueous solutions prepared at different Pb(II) concentrations to determine optimum pH, adsorbent concentration, reaction time and initial Pb(II) concentration. Optimum removal conditions for Pb(II) adsorption onto FS-HAp were determined as pH 4.0, adsorbent concentration of 7.5 g/L, reaction time of 60 min, and initial Pb(II) concentration of 50 mg/L. Under these experimental conditions, the maximum Pb(II) removal was obtained as 97%. According to results of the study, hydroxyapatite obtained from fish scales was found to be highly efficient material to remove Pb(II) ions from water by adsorption method in order to reach high efficiency values when compared with many adsorbent materials.
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