Aspartic Acid- and Glycine-Functionalized Mesoporous Silica as an Effective Adsorbent to Remove Methylene Blue from Contaminated Water

Figure 7

Effect of contact time and initial concentration (50 ppm (black), 100 ppm (green), and 200 ppm (red)) on adsorption behavior of MB by (a) Asp-MSNs and (b) Gly-MSNs ( =10 mL,  =298 K).

(a)

(b)