Catalytic and Photocatalytic Degradation Activities of Nanoscale Mn-Doped ZnCr₂O₄

Figure 2

HR-SEM images of (a) pristine ZnCr₂O₄, (b) Zn_0.99Mn_0.01Cr₂O₄, (c) Zn_0.98Mn_0.02Cr₂O₄, and (d) Zn_0.97Mn_0.03Cr₂O₄.

(a)

(b)

(c)

(d)