Preparation and Photo-Catalysis Properties of Fe_3O_4/TiO_2 Nanocomposite

摘要

As a kind of most common used photo-catalyst, TiO_2 nanomaterials exist disadvantages on low light energy utilization in visible light range and difficulty on recycle. In our study, different proportions of Fe~(3+) and Fe~(2+) ion were doped with nano-TiO_2 particles in structure of rutile type through method of chemical precipitation. The result showed that the average size of the composite particles was nearly 20nm. The photo-catalyst performance of the composite have been improved and the relatively optimized preparation conditions were presented.