| 초록 |
Recently, due to Corona 19, there is an increasing interest in improving and maintaining indoor air quality. Measures against ultra-fine dust on a small scale such as personal masks and air purifiers have become common, but measures against ultra-fine dust in high-rise buildings and multi-use facilities are limited. To improve the performance of filter media suitable for multi-use facilities, the growth of CNTs(carbon nanotubes) through CVD(chemical vapor deposition) was controlled. To control the growth, the concentration of MgO as a support and the amount of Fe and Mo catalysts were adjusted, and differences were confirmed for CVD temperature. Controlled average diameter and growth, catalyst and growth uniformity of CNTs were confirmed through SEM, and the growth yield of CNTs was obtained by comparing the weights before and after chemical deposition. In addition, the change in air permeability before and after the growth of CNTs on the filter medium was also confirmed. |
