Research Article

Adsorptive Removal of Iron Using SiO2 Nanoparticles Extracted from Rice Husk Ash

Figure 3

Experimental results of Fe2+ adsorption capacity and Fe2+ removal efficiency by the SiO2 nanoparticles extracted. (a) UV-Vis calibration curve for Fe2+ ion adsorption and effect of (b) pH, (c) contact time, and (d) SiO2 mass.
(a)
(b)
(c)
(d)