A Study on Astrazon Black AFDL Dye Adsorption onto Vietnamese Diatomite

Figure 4

Plots of Langmuir (a) and Freundlich (b) adsorption isotherms for AB/diatomite system: adsorption condition: mass of adsorbent = 50; 100; 150; 200; 250; and 300 mg, volume of solution = 100 mL, equilibrium time = 24 h, temperature = °C, and pH of dyes solution = 7.0.

(a)

(b)