Research Article

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

Figure 4

Characterization of SiO2 extracted. (a) FT-IR spectrum of the RHA and extracted SiO2. (b) TEM image of SiO2 nanoparticles. (c) EDS elemental composition analysis of SiO2 nanoparticles. (d) SiO2 nanoparticles extracted from RHA.
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