Patent ID: 7687433

Claim:
A method of fabricating a product of polyacrylonitrile activated carbon fiber supporting silver, comprising the steps of: a) impregnation process: impregnating polyacrylonitrile activated carbon fibers with silver wherein said polyacrylonitrile activated carbon fibers are immersed in a silver acetate solution under vacuum conditions for 1 minute to 720 minutes to deposit silver on surfaces of the polyacrylonitrile activated carbon fibers via a chemical reaction; b) drying process: drying said polyacrylonitrile activated carbon fibers supporting silver to remove water content therefrom; c) high temperature degradation process: heating the polyacrylonitrile activated carbon fibers free of water content in a stove filled with protective gas under 120° C. to 450° C. for 5 minutes to 120 minutes to break the silver on the polyacrylonitrile activated carbon fibers into very fine grains, and d) washing process: washing the polyacrylonitrile activated carbon fibers for 1 minute to 600 hours to remove redundant sliver from the surfaces of the polyacrylonitrile activated carbon fibers.