Synthesis, Optical, and Magnetic Properties of Graphene Quantum Dots and Iron Oxide Nanocomposites

<div>(a) Room temperature UV-visible absorption spectra of GQDs (black) and GQDs-Fe<sub>3</sub>O<sub>4</sub> (red). Inset in (a) shows optical images of the emitting GQDs and GQDs-Fe<sub>3</sub>O<sub>4</sub> aqueous solution (DI water) when excited at 365 nm. (b) Room temperature PL spectra of GQDs (upper panel) and GQDs-Fe<sub>3</sub>O<sub>4</sub> NC (lower panel) excited at 450 nm.</div>

Advances in Materials Science and Engineering

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Figure 3

Figure 3: Synthesis, Optical, and Magnetic Properties of Graphene Quantum Dots and Iron Oxide Nanocomposites 