Figure 4

Percentage Cr(VI) removal (A) and qe (B) as a function of pH for different types of adsorbents (adsorbent dosage = 2 g/L, time = 90 min, initial Cr(VI) concentration = 10 ppm).

Percentage Cr(VI) removal (A) and qe (B) as a function of pH for different types of adsorbents (adsorbent dosage = 2 g/L, time = 90 min, initial Cr(VI) concentration = 10 ppm).