Method of surface treatment of porous material.

摘要

There is disclosed a method of the surface treatment of a porous material. The porous material is electrolysed in an aqueous solution of at least one metal salt of thio-acid to impregnate the porous material with the metallic sulfide. Optionally, the porous material may be immersed alternately in an aqueous solution of at least one metal salt of thio-acid and an acid aqueous solution after the electrolysis to further impregnate the porous material with the metallic sulfide.