A hydrothermally grown CdS nanograin-sensitized 1D Zr:α-Fe2O3/FTO photoanode for efficient solar-light-driven photoelectrochemical performance

摘要: Well-defined CdS nanograin-sensitized one-dimensional (1D) Zr:α-Fe2O3 nanostructured arrays with enhanced photoelectrochemical performance are synthesized directly on F-doped SnO2 (FTO) using the hydrothermal method. Owing predominantly to appropriate photogenerated electron-hole separation and charge collection in 1D nanorods, hydrothermally deposited CdS/1D samples exhibit improved photocurrent density over CdS/Fe2O3 nanosheets prepared by other methods. In our work, compared Zr:α-Fe2O3, CdS-sensitized nanorod show 1.9 times performance. Unfortunately, suffer from instability problem. Nickel hydroxide loading, however, can boost of heterojunction also act as a protective layer that improves stability Ni(OH)2/CdS/1D electrode Zr:α-Fe2O3. This PEC activity may be ascribed strong heterojunctions between nanograins well effective separation. work will provide new insight into fabrication protection many photosensitive materials engineer photocatalytic devices near future.