Optimization of Preparation of Activated Carbon from Ricinus communis Leaves by Microwave-Assisted Zinc Chloride Chemical Activation: Competitive Adsorption of Ni2+ Ions from Aqueous Solution
Figure 6
Effect of contact time on the adsorption of Ni2+ ions (100 mg/L of nickel, pH 7, and 0.2 g/50 mL of ZLRC).
