Ultra-porous photocatalytic material, method for the manufacture and the uses thereof

摘要

The present invention relates to a method for manufacturing ultra-porous photocatalytic materials, to the ultra-porous photocatalytic materials obtained by such a method, as well as to the uses thereof for producing hydrogen, treating wastewater and polluted water, treating polluted air, or furthermore to the use of same as catalytic membranes in fuel cells. Finally, a last aim of the invention relates to articles chosen among hydrogen production devices, self-cleaning glass panes and antipollution walls.

主权项

1. A process for the manufacture of an ultraporous photocatalytic material comprising:
a stage of deposition on a substrate, at a temperature of between 50 and 250° C., of a composite material composed of at least one refractory metal and of at least one nonrefractory filler metal, a subsequent stage of removal of the nonrefractory filler metal, said process also comprising a final stage of thermal annealing at a temperature greater than or equal to 600° C., and also an oxidation stage which can be carried out either before or after the stage of removal of the nonrefractory filler metal or simultaneously with the final stage of thermal annealing.