나노크기 TiO2 제조 및 광촉매에 의한 페놀 광분해

초록

The nano-sized TiO2 particles by the difusion flame reactor were prepared and the effects of several process vari-ables on the properties of TiO2 particles were investigated. The photo-degradation of phenol was also analyzed with the pre-pared TiO2 particles in the slurry type photocatalytic reactor. As the fuel/O2 input ratio or inlet TiCl4 concentration increases oras the total gas flow rate decreases, the TiO2 particles size increases. The specific surface area of TiO2 particles decreases as theinlet TiCl4 concentration increases. As the TiO2 particle size decreases or as the O2 flow rate increases, the photo-degradationefficiency of phenol increases by the faster photo-degradation rate. The larger the amount of anatase phase in TiO2 particles, thehigher the photo-degradation efficiency of phenol is.

키워드