Fig. 4From: Comparative study of photocatalytic activities of hydrothermally grown ZnO nanorod on Si(001) wafer and FTO glass substratesSTXM images of the ZnO nanorods and their corresponding XAS spectra. The STXM images were obtained at 1021.3 eV (Zn L-edge) and 537.2 eV (O K-edge). XAS spectra: a Zn L 3 -edge and c O K-edge for ZnO-4/FTO and b Zn L 3-edge and d O K-edge for ZnO-4/Si(001). We obtained these spectra of the nanorods after separating them from their respective substrates by using an ultrasonicatorBack to article page