Figure 1.
FT-IR spectra of (a) Fe3O4@SiO2, (b) Fe3O4@SiO2–NH2, (c) Fe3O4@SiO2–TCT, (d) Fe3O4@SiO2–TCT–NH2, (e) Fe3O4@SiO2–EDTA, and (f) Fe3O4@SiO2–EDTA–Ni(II) NPs.
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