Preparation of FeS2 nanotube arrays based on layer-by-layer assembly and their photoelectrochemical properties

- Amorphous Fe2O3 nanotube arrays are prepared via layer-by-layer assembly.
- Pyrite FeS2 nanotube arrays are obtained by sulfurizing Fe2O3 nanotube arrays.
- Various electrochemical properties are characterized.
- A comparison between FeS2 nanotube and nanoparticle films is conducted.
- Nanotube arrays show enhanced corrosion resistance and photoresponse.