Preparation And Photocatalytic Reactivity Of Iron-doped TiO₂ Nanoparticles

Nanosize Fe³⁺-doped TiO₂ particles were prepared by sol-gel method. The influences of various sol-gel conditions including Fe³⁺ % and pH were investigated. The photocatalytic activity of the catalysts was tested with Rhodamine B as the objective decomposition substance.The results show that the Fe -doped TiO₂ has a higher photocatalytic activity than TiO₂. The best catalytic activity was observed in TiO₂ with 0.05% doped Fe³⁺ when pH is 5.0.In this paper UV-Vis and LC-MS observation and techniques were used to investigate the photocatalytic degradation of Rhodamine B on Fe³⁺-doped TiO₂ particles. Experiment results show that there are different mechanisms of the photocatalytic degradation of Rhodamine B with different pH in witch the Fe³⁺-doped TiO₂ particles were prepared by a sol-gel method.