Metal/activated carbon fibers were electrochemically prepared with various metals such as Ag, Cu and Ni. The changes of the physicochemical properties of the activated carbon fiber felts with metallic ions were investigated depending on the treatment times. The activated carbon fiber felts were evaluated for the physicochemical properties of adsorption isotherms and surface area. The quantitative properties in the metal ion solutions were also analyzed from measurements of pH concentration and elemental analysis after the electrochemical treatment. The amount of Ag ions was abruptly decreased at the beginning of the electrochemical reaction, while the amount of Ni ions was nearly constant after the time becomes longer than 20 minute. Subsequently, the surface morphologies were studied to interpret the changes of the adsorption properties.

Keywords: Metal/activated carbon fiber, Physicochemical properties, Adsorption isotherm, Surface morphology