Size-Controlled Synthesis of Fe₃O₄ Magnetic Nanoparticles in the Layers of Montmorillonite

Figure 2

Photograph of montmorillonite suspension (a) and Fe²⁺/Fe³⁺/MMT suspension at different Fe²⁺/Fe³⁺/concentrations; (b) 1.0%, (c) 7.0%, (d) 12.0% and Fe₃O₄/MMT NCs, (e) 1.0%, (f) 7.0%, and (g) 12.0%.

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