Figure 7

UV–Vis absorption spectra of (a) SnO2@ZnO nanocomposite (blue) and PANI-NPs (green) and (b–d) different volume ratios of SnO2@ZnO.PANI (2%, 4%, and 6%) nanocomposite.

UV–Vis absorption spectra of (a) SnO2@ZnO nanocomposite (blue) and PANI-NPs (green) and (b–d) different volume ratios of SnO2@ZnO.PANI (2%, 4%, and 6%) nanocomposite.