| 摘要 |
This invention is to implement functional group to the surface of active carbon throughout electroless plating method by using alkalic metals of Cu, Ni and Ag. According to the invention, there is provided an active carbon having selective adsorption capability to polar contaminants, the said active carbon being plated in a plating bath comprising a reducing agent and a salt of transitional metal selected from the group consisting of Cu, Ni and Ag. There is also provided a method of preparing active carbon having selective adsorption capability to polar contaminants comprising: a step of preparing a plating salt bath containing a reducing agent and a salt of the transitional metal selected from the group consisting of Cu, Ni and Ag; and a step of dipping active carbon having 1000 m<2>/g to 2500 m<2>/g of specific surface area in the plating bath for 5 to 60 minutes, the transitional metal being 1-10 wt.% of the plating bath. The plating assigns polarity to carbon surface with increased dissociation energy and degree of surface activation. Finally, this invention produces high performing active carbon having highly selective adsorption capability for the main contaminants of SOx and NOx in gas or liquid phase and polar organic and inorganic contaminants, as well. |
