N,S-modified ZnO and Bi2O3 thin films supported on titanium mesh as photoanodes

Abstract

The effect of S doping on the physicochemical and photoelectrochemical properties of ZnO and Bi2O3 films has been studied. Two procedures were used for the synthesis of S-ZnO and S-Bi2O3 thin films on Ti mesh, obtaining lamellar shape nanocrystals for S-ZnO film. The presence of TiO2 anatase phase and wurtzite (ZnO and S-ZnO film) and TiO2 anatase and α-Bi2O3 (Bi2O3 and S- Bi2O3) was observed. The inclusion of sulfur and nitrogen atoms as part of the lattice of the films was evidenced by XPS analysis.