Effects Of Iron Complex On The Photocatalytic Properties Of Titanium Dioxide For Degradation Of Phenol

TiO₂ has been paid more attentions due to its excellent chemical and physical properties in the field of photocatalysis research. However, its practical application is limited greatly by its lower visible light utilization and easier recombination of photogenerate electron and hole. In this paper, two novel composite photocatalysts had been prepared by using TiO₂ and two different complexes consisting iron and organic dye. Their photocatalytic activities for the degradation of phenol under visible light are stronger than that of pure TiO₂. The specific work is as follow:1. Two complexes Fe?PAR?₂ and Fe?HQC?₃ were synthesized by simple dissolving, mixing and stirring at room temperature. Composite photocatalysts Fe?PAR?₂/TiO₂ and Fe?HQC?₃/TiO₂ were obtained through hydrothermal process.2. The experimental conditions had been optimized, including amount of complex, temperature and time.3. By using XPS, XRD, HRTEM, DRS, composite catalysts have been characterized and analyzed.4. The reaction mechanism of degradation of phenol by these two composite photocatalysts under visible light was investigated.