Photocatalayst and Decomposition Properties of TiO<sub>2</sub> and TiO<sub>2</sub>-CdS Powders Prepared by Supercritical Fluid Method

,; ,; ,; ,; ,; ,; ,; ,; ,; ,; ,; ,; ,; ,

doi:2004.41.6.481

J. Korean Ceram. Soc. > Volume 41(6); 2004 > Article

Journal of the Korean Ceramic Society 2004;41(6): 481.
doi: https://doi.org/10.4191/kcers.2004.41.6.481

초임계 유체법으로 제조한 TiO₂ 및 TiO₂-CdS계 광촉매의 분해물성 연구

전일수, 황수현¹, 박상준¹, 길현식¹, 조승범², 전명석³, 임대영⁴

한국에너지기술연구소
¹배재대학교 재료공학
²LG 화학기술연구원 신소재연구
³한국에너지기술연구
⁴배재대학교 재료공학과

Photocatalayst and Decomposition Properties of TiO₂ and TiO₂-CdS Powders Prepared by Supercritical Fluid Method

ABSTRACT

TiO$_2$ and TiO$_2$-CdS powders which were expected to be highly activated photocatalysts were prepared using supercritical fluid method (SCF). The prepared photocatalyst TiO$_2$ powders were crystalline of anatase and ultrafine spherical powders with large specific surface area. When photodecompositoion reaction was done with TiO$_2$ powders prepared by SCF as a photocatalyst in DCA (Dichloroactic Acid) solution, a hazardous organic compound, the photocatlyst, properties of TiO$_2$ powders prepared by SCF were better than that of commercial TiO$_2$ powders.

Key words: Superclitical fluid method, $TiO_2$, $TiO_2$-CdS photocatalst, Decomposition property