Abstract
Titanium dioxide powders with photocatalytic properties were obtained by a simple hydrolysis method, using an inorganic precursor. The effect of the annealing temperature on the formation and subsequent photocatalytic activity has been studied. The powders were characterized by X-ray diffraction, Raman and UV-Vis spectrometry in order to emphasise the structural and optical properties. The photo-catalytic performance of the powders by degradation of Methylene Blue under low intensity UVA and visible radiation were also quantified. The amorphous powder exhibits higher photo-catalytic activity than the equivalent anatase phase. The degradation efficiency of the dye in presence of the amorphous catalyst was 43%.
| Original language | English |
|---|---|
| Pages (from-to) | 431-435 |
| Number of pages | 5 |
| Journal | Optoelectronics and Advanced Materials-Rapid Communications |
| Volume | 9 |
| Issue number | 3-4 |
| Publication status | Published - Apr 2015 |
Keywords
- Amorphous
- Nano-crystalline phases
- Photo-catalytic performance
- TiO2 catalyst
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials