Figure 9
(a) FT-IR spectrum of (a) adsorbent before dye adsorption, (b) after MxB dye adsorption, and (c) after MxB and MG mixture dye adsorption. (b) Comparison the removal efficiency % for sole and mixture of cationic dyes with different percentages (pH 7, room temp., at equilibrium time, 0.1 g dose of Al2O3 and dye conc. = 50 mg/L).
