Aminopropyl Functionalised MCM-41: Synthesis and Application for Adsorption of Pb(II) and Cd(II)

Figure 8

Plots of isotherm equations in a linear form for Pb(II) and Cd(II) adsorption on aminopropyl-MCM-41: (a, b) Freundlich; (c) Langmuir 2; (d) Redlich–Peterson; (e, f) Sips’s model (adsorption condition:  = 50 mL,  = 0.05 g, room temperature).

(a)

(b)

(c)

(d)

(e)

(f)