Recovery of Palladium from Acidic Solution Using Polyethylenimine-Crosslinked Calcium Silicate Hydrate Derived from Oyster Shell Waste: Adsorption and Mechanisms

<div>(a) Adsorption of Pd(II) onto different samples (OSP, CSH, and PEI-CSH) (experimental conditions: pH 2; volume of solution, 30 mL; mass of adsorbent, 60 mg; and initial Pd(II) concentration, 200 mg/L). (b) Pd(II)-pH equilibrium diagram for system hydrochloric acid (condition).</div>

Adsorption Science & Technology

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Figure 5

Figure 5: Recovery of Palladium from Acidic Solution Using Polyethylenimine-Crosslinked Calcium Silicate Hydrate Derived from Oyster Shell Waste: Adsorption and Mechanisms 

Figure 5 | Recovery of Palladium from Acidic Solution Using Polyethylenimine-Crosslinked Calcium Silicate Hydrate Derived from Oyster Shell Waste: Adsorption and Mechanisms 