| 초록 |
Activated carbons (ACs) were prepared from Mongolian anthracite using a chemical activation and assessed as adsorption media. The chemical activation was performed with KOH and NaOH as activating agents by two different methods, physical mixing and impregnation. The mass ratio of activating agent/anthracite, activation temperature and time and preheating temperature were main activation process variables. The characterization of the prepared ACs was conducted by BET, TEM, and XPS analyses to obtain physicochemical properties such as surface area, pore volume, pore distribution, surface morphology, and chemical composition. When the precursor was impregnated with agent solution prior to activation, the fraction of micropore volume was high, about 80 percent of its total pore volume. It was proven that the ACs could be promising adsorption media for applications that require a specific pore size distribution. |
