1-Dimensional WO3 structures as visible light photocatalysts
This project studies the morphological effects of tungsten trioxide (WO3) particles on their capacity for photodegrading ethylene and acetaldehyde in the gas phase. The effect of platinum deposits is also being considered
Major achievements
WO3 nanoparticles (nanorods, nanocubes) with differing crystal phases have been prepared using various hydrothermal conditions and additives.
We found that:
The nanocubes are superior for photodegrading both ethylene and acetaldehyde under visible light compared with a commercial brand of WO3 (Sigma).
Pt deposits further improve the photoactivity, depending on their photodeposition conditions.
Future plans and directions
A visit to Prof Ohtani’s laboratories at Hokkaido University, Japan, to undertake detailed physicochemical characterisation of nanocubes.
Modelling of hydrothermal growth of WO3 nanostructures will be performed for predictive purposes. Furthermore, various particle characterisation methods will be employed to understand the fundamental mechanism of the improved WO3 nanocubes performance.
Collaborations
Prof Bunsho Ohtani Hokkaido University, Japan
