Catalytic and Photocatalytic Degradation Activities of Nanoscale Mn-Doped ZnCr₂O₄

Figure 3

HR-TEM images of (a, b) pristine ZnCr₂O₄ and (c, d) Zn_0.97Mn_0.03Cr₂O₄.

(a)

(b)

(c)

(d)