Biosorption Studies of Cd<sup>2+</sup> and Cr<sup>6+</sup> from Aqueous Solution Using Cola-Nut Leaves as Low-Cost Biosorbent

<div>% removal of Cr (VI) ions versus contact time (mins).</div>

Journal of Chemistry

Figure 7: Biosorption Studies of Cd<sup>2+</sup> and Cr<sup>6+</sup> from Aqueous Solution Using Cola-Nut Leaves as Low-Cost Biosorbent 