fig2
Figure 2. SEM images of (A) diatomite, (B) Fe0@Fe3O4, (C and D) 0.6-FNGD and (E) SEM-EDS elemental mapping of Si, C, N and Fe for 0.6-FNGD composite.
Figure 2. SEM images of (A) diatomite, (B) Fe0@Fe3O4, (C and D) 0.6-FNGD and (E) SEM-EDS elemental mapping of Si, C, N and Fe for 0.6-FNGD composite.
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