Optimization of Preparation of Activated Carbon from <i>Ricinus communis</i> Leaves by Microwave-Assisted Zinc Chloride Chemical Activation: Competitive Adsorption of Ni<sup>2+</sup> Ions from Aqueous Solution

<table>Effect of adsorbent dose on the removal of Ni<sup>2+</sup> ions onto ZLRC (Ni<sup>2+</sup> concentration 100 mg/L, contact time 2 h, solution pH 7).</table>

Journal of Chemistry

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Figure 7

Figure 7: Optimization of Preparation of Activated Carbon from <i>Ricinus communis</i> Leaves by Microwave-Assisted Zinc Chloride Chemical Activation: Competitive Adsorption of Ni<sup>2+</sup> Ions from Aqueous Solution 

Figure 7 | 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 