Graphene Oxide/Polyvinyl Alcohol/Fe₃O₄ Nanocomposite: An Efficient Adsorbent for Co(II) Ion Removal

Figure 1

(a) XRD patterns of GO (A) and GO/PVA/Fe₃O₄ (B) sample; (b) FT-IR of GO (A), PVA (B), and GO/PVA/Fe₃O₄ (C); (c–f) SEM images with different magnifications of (c, e) GO and (d, f) GO/PVA/Fe₃O₄, respectively; nitrogen (N₂) adsorption-desorption isotherm (g) and BJH pore size distribution (h) of the as-synthesized GO/PVA/Fe₃O₄ sample.

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