Promotional Effect of Rare Earth (Er, Pr, Nd, Gd and Sm) Metals on the Photocatalytic H2O Splitting Activity of Ni-Al doped TiO2 Catalysts for H2 Production

Key Points

• The research aims to evaluate how rare earth metals improve the photocatalytic activity of Ni-Al doped TiO2 for hydrogen production.
• Synthesis of Ni-Al doped TiO2 catalysts with varying amounts of rare earth metals
• Characterization of photocatalytic activity under light irradiation
• Comparison of hydrogen evolution rates among different catalysts
• Rare earth metals significantly enhance H2 production compared to undoped TiO2
• Optimal ratios of Er, Pr, Nd, Gd, and Sm lead to maximum photocatalytic efficiency
• The study identifies key interactions between dopants and TiO2 influencing photocatalytic performance