Facile Synthesis of rGO/Mn₃O₄ Composite for Efficient Photodegradation of Phenol under Visible Light

Figure 3

HR-SEM images of (a) pristine Mn₃O₄, (b) bare rGO, (c) MnsR1, (d) MnsR0.75, (e) MnsR0.50, and (f) MnsR0.25.

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