PHYS 427 |
| Fe3+ doped TiO2 Nanopowder was prepared by the microemulsion method, Sol-gel method, microwave hydrolysis method, respectively. The structure of Fe3+ doped TiO2 was analyzed by XRD. The photocatalytic activity was examined by the degradation of methyl orange solution. The experiment results showed that pH value of the solution, apparent concentration of Fe3+ doped TiO2 and degradation time were the main factors to affect the photocatalytic efficiency of Fe3+ doped TiO2. When the molar ratio of Fe3+ to Ti4+ was 0.0004, the final degradation efficiency of methyl orange can retch up to 98.33%. Meanwhile, when the Fe3+ doping concentration increased to a certain extent, the degradation efficiency actually fell, which indicated that there was optimum doping concentration. In addition, the initial concentration of the solution, preparation method, calcination temperature, and so on, could affect the photocatalytic properties of TiO2 at a certain degree. |
|
PHYS Poster Session - Nanostructured Materials and Nanophotonics
7:30 PM-10:00 PM, Wednesday, April 9, 2008 Morial Convention Center -- Hall A, Poster
Division of Physical Chemistry |