| 초록 |
The effect of copper content on MCM-41 mesoporous materials was investigated in order to NO removal. MCM-41 mesoporous materials were prepared by hydrothermal synthesis using a gel mixture of colloidal silica solution as silica source and cetyltrimethylammonium as template. Cu/MCM-41 were manufactured by different concentrations of copper (5, 10, 20, 40%) in Cu(II) acetylactetonate. The surface properties of Cu/MCM-41 were investigated using FT-IR analysis. N2/77K adsorption isotherm characteristics, including the specific surface areas and micropore volumes were studied by BET and t-plot methods. NO removal efficiency was confirmed by gas chromatographic technique. From the experimental results, the copper content supported on MCM-41 appeared to increase the NO removal efficiency in spite of decreasing the specific surface areas or micropore volumes. Consequently, the copper content in MCM-41 played an important role in improving the NO removal, which was mainly attributed to the catalytic reactions in this system. |
