Preparation and Characterization of Functionalized Cellulose Nanomaterials (CNMs) for Pb(II) Ions Removal from Wastewater

Figure 7

Langmuir (a), Freundlich (b), and Temkin (c) adsorption isotherm for the removal of Pb(II) ions, respectively, at Ci = 30 mg/L, pH = 6, adsorbent dose = 1 (g), contact time = 120 min, and agitation speed = 250 rpm.

(a)

(b)

(c)