Fig. 3From: CdS Nanoparticle-Modified α-Fe2O3/TiO2 Nanorod Array Photoanode for Efficient Photoelectrochemical Water Oxidation a XPS spectra of CdS/Fe2O3/TiO2 NR sample, b XPS spectra of Ti 2p including Ti 2p1/2 and Ti 2p3/2, c XPS spectra of Fe 2p including Fe 2p1/2 and Fe 2p3/2, d XPS spectra of O 1s including Fe–O bond and Ti–O bond, e XPS spectra of Cd 3d5/2, and f XPS spectra of S 2p including S 2p1/2 and S 2p3/2 Back to article page