Preparation, Characterization, and Biotoxicity of Nanosized Doped ZnO Photocatalyst

Figure 4

SEM images and microanalysis by an energy dispersive spectrometer of accumulated nZnO in the intestines of D. magna after 2 d exposure. (A, a) Nondoped nZnO, (B, b) Fe-nZnO, (C, c) Co-nZnO, (D, d) Ni-nZnO, and (E, e) Mn-nZnO.