| 초록 |
The attractive point of the hybrid mesoporous material as a separating medium is that on top of the large surface area, narrow pore size distribution of the M41S type mesoporous material, it has a large fraction of organic component, which can prove useful in controlling hydrophobicity needed for the adsorption of organic molecules. In this work, hybrid mesoporous material was synthesized using microwave heating to produce smaller and uniform particles with spherical morphology to apply as a reverse phase HPLC column. Particle size of these hybrid materials could be controlled between 1.5 μm and 2.2 μm by adjusting the synthesis parameters. The synthesis time was largely reduced by microwave heating method. The materials synthesized by microwave heating showed high separation ability compared to commercial silica. This improvement in HPLC performance of the hybrid material is believed to be a consequence of smaller uniform particles with enlarged pores in spherical morphology induced by the rapid and uniform heating. Separation ability could be further improved by controlling the particle size of column material closely by using different heating rate. |
