910761.fig.004
Figure 4: X-ray diffraction patterns of precipitates extracted from the colloidal solution. 1: Z n + H2O; 2: Z n + 0.001 M SDS; 3: Z n + 0.05 M SDS; 4: Z n + 0.037 M AOT; 5: Z n + 0.01 M SDS; a: Zn, b: ZnO, c: hydrozincite, d: Zn(OH)2.