CdS nanorod arrays with TiO2 nano-coating for improved photostability and photocatalytic activity

Abstract

CdS nanorod arrays were grown on fluorine-doped tin oxide glass substrates via a hydrothermal process and subsequently coated with a TiO₂ nanolayer via a vacuum dip-coating process to fabricate a one-dimensional array structured photocatalyst. The TiO₂ nanolayer improved the photocatalytic efficiency of CdS nanorod arrays for the degradation of methylene blue due to the effective separation of the electron–hole pairs, and the photocorrosion of CdS nanorod arrays was successfully inhibited.