Figure 7
High-resolution XPS spectra of NZO-PS. a) Cu 2P spectra of Cu(II) loaded PS samples; b) Cu 2P spectra of Cu(II) loaded purified ZrO2 samples; c) Cu 2P spectra of Cu(II) loaded NZO- PS samples; d) Cu 2P spectra of Cu(II) loaded NZO- PS samples in presence of high level of Ca(II) ions competition.
