Modified Multiwalled Carbon Nanotubes for Treatment of Some Organic Dyes in Wastewater

Figure 9

(a) Effect of pH on basic orange dye adsorbed % (contact time = 30 min, CNTs dosage = 100 mg/L). (b) Effect of pH on methyl violet dye adsorbed % (contact time = 40 min, CNTs dosage = 50 mg/L).

(a)

(b)