Removal of Cr(VI) and Cu(II) Ions from Aqueous Solution by Carbon Prepared from Henna Leaves
Figure 2
(a) Effect of pH on copper adsorption by henna leaves at an initial concentration of 100 ppm, 90 min, and 1 g adsorbent dose. (b) Effect of pH on chromium adsorption by henna leaves at an initial concentration of 100 ppm, 90 min, and 1 g adsorbent dose.
