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

Figure 8

(a) Pseudo-first-order kinetics, (b) pseudo-second-order kinetics, and (c) intraparticle diffusion kinetics for adsorption of MB on Asp-MSNs. (d) Pseudo-first-order kinetics, (e) pseudo-second-order kinetics, and (f) intraparticle diffusion kinetics for adsorption of MB on Gly-MSNs ( =10 mg,  =10 mL, pH =7, and  =298 K).

(a)

(b)

(c)

(d)

(e)

(f)