Research Article
Graphene Oxide/Polyvinyl Alcohol/Fe3O4 Nanocomposite: An Efficient Adsorbent for Co(II) Ion Removal
Figure 5
(a, b) SEM and (c, d) EDS spectra of the adsorbent before (a, c) and after (b, d) Co2+ ion adsorption process.
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| (b) |
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