Fig. 2From: Comparative study of photocatalytic activities of hydrothermally grown ZnO nanorod on Si(001) wafer and FTO glass substratesXRD patterns of ZnO nanorods: (b ) and (d) grown for 1 h on Si(001) wafer and FTO glass substrates and (a) and (c) grown for 4 h on Si(001) wafer and FTO glass substratesBack to article page