International Journal of Photoenergy / 2012 / Article / Fig 4

Research Article

Hierarchical CuO/ZnO Membranes for Environmental Applications under the Irradiation of Visible Light

Figure 4

XPS spectra of the Cu 2p, Zn 2p, and O 1s state on the surface of the hierarchical CuO/ZnO nanomaterials.
804840.fig.004a
(a)
804840.fig.004b
(b)
804840.fig.004c
(c)