Comparison of Acid Red 114 Dye Adsorption by Fe₃O₄ and Fe₃O₄ Impregnated Rice Husk Ash

Figure 9

Isotherm plots for the adsorption of AR114 with RHA-MNP (natural pH, = 20, 40, 60, 80, and 100 mg/L, and = 1 g/L).