Product for removing pollutants from a fluid, and method for producing same

A method for obtaining a product for removing bacteria from a fluid, comprising:

• treating a porous body comprising a carbonaceous component and having an outer and inner specific surface in an inert gas plasma deposition reactor with radiofrequency discharge, by immersing the porous body into the inert gas plasma with a source of metal;
• and
• injecting said metal into the inert gas plasma, on at least part of the outer and inner specific surface of the porous body by bombarding ions of plasma's inert gas on the source of metal, so as to form a metallized layer, a thickness of which never exceeds a few nanometers, covering at least part of the outer and inner specific surface of the porous body,
• wherein the step of treating the porous body also comprises immersing the porous body into the inert gas plasma with a source of silicon and injecting said silicon, in the inert gas plasma with the metal, on said at least part of the outer and inner specific surface of the porous body by bombarding ions of plasma's inert gas on the source of silicon, so that the metallized layer comprises, in interaction with the porous body, components that are carbides of metal silicides with chemical bonds between their carbon, metal and silicon atoms that result from the action of intramolecular forces, wherein the metal silicides are silver silicides or silicides of a metal whose atomic mass is greater than or equal to that of copper.

A product for removing E. coli from a fluid, comprising:

• a porous body comprising a carbonaceous component and having an outer and inner specific surface;
• and
• a metallized layer a thickness of which never exceeds a few nanometers, covering at least part of the outer and inner specific surface of the porous body, the metallized layer including at least a metal bonded to the porous body by chemical bonds resulting from the action of intramolecular forces,
• wherein the metallized layer further includes silicon also bonded to the porous body by chemical bonds resulting from the action of intramolecular forces, and
• the metallized layer comprises, in interaction with the porous body, components that are carbides of metal silicides with chemical bonds between their carbon, metal and silicon atoms that result from the action of intramolecular forces, wherein the metal silicides are silver silicides or silicides of a metal whose atomic mass is greater than or equal to that of copper obtained by immersing the porous body into the plasma of an inert gas plasma deposition reactor with radiofrequency discharge and injecting metal and silicon into the plasma.