Figure 1.
TEM image of Fe3O4 (a), Fe3O4@SiO2 (b), Fe3O4@SiO2-MWCNT (c-d), SEM image of Fe3O4@SiO2-MWCNT (e), and SEM-EDX of Fe3O4@SiO2-MWCNT (f).
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