Abstract
Metal nano-particle supported on titania (MNP/TiO2) photocatalysts are effective to generate hydrogen from an ethanol water mixture. Several chemical and physical methods have been reported for the fabrication of platinum nano-particles (PtNP/TiO2) and gold nano-particles (AuNP/TiO2) supported on titania. In general chemical techniques are more employed for the fabrication of these nanoparticles, but from the cost production point of view physical techniques based on plasma/laser are expected to be more advantageous. Furthermore, in the case of plasma generation in a liquid, for example, where the nanoparticles are fabricated directly into a liquid medium, there is the advantage that nanoparticle aggregation is avoided. Here we report on the development of a photocatalyst based on titania-supported platinum nanoparticles fabricated by cavitation bubble plasma technique and on its application for hydrogen generation.
