A highly efficient and recyclable Pt/TiO2 thin film photocatalytic system for sustainable hydrogen production

Powder samples (P) of TiO2 and Pt/TiO2 were prepared using conventional methods. Then, thin films (TF) incorporating these powders onto SiO2 films were prepared via dip coating. The powder and thin film samples were characterized by Raman spectroscopy, FESEM, elemental mapping, ICP-OES, HRTEM, UV-vis DRS, and XPS. The samples were then tested in a water-splitting reaction to generate hydrogen, using a water/methanol mixture with a 1:1 volume ratio, and two purple lamps as the radiation sources. The results suggest that incorporating the powder photocatalyst into the thin film resulted in a significant improvement in photocatalytic performance. Furthermore, the thin film samples were more stable during three consecutive runs.

Automated summary

Powder samples of TiO2 and Pt/TiO2 were prepared using conventional methods, and then thin films incorporating these powders were prepared via dip coating. The samples were characterized using various techniques. The results showed that incorporating the powder photocatalyst into the thin film improved the photocatalytic performance significantly. Furthermore, the thin film samples were more stable during three consecutive runs.