Characterization of Fe-ACF/$TiO_2$ composite Photocatalysts Effect Via Degradation of MB Solution

Fe-ACF/$TiO_2$ 복합체의 특성과 MB용액의 분해에서 포토-펜톤 효과

  • Zhang, Kan (Department of Advanced Materials & Science Engineering, Hanseo University) ;
  • Meng, Ze-Da (Department of Advanced Materials & Science Engineering, Hanseo University) ;
  • Ko, Weon-Bae (Department of Chemistry, Sahmyook University) ;
  • Oh, Won-Chun (Department of Advanced Materials & Science Engineering, Hanseo University)
  • 장간 (한서대학교 신소재공학과) ;
  • 맹칙달 (한서대학교 신소재공학과) ;
  • 고원배 (삼육대학교 화학과) ;
  • 오원춘 (한서대학교 신소재공학과)
  • Published : 2009.09.30

Abstract

In this paper, the Fe-activated carbon fiber (ACF)/$TiO_2$ composite catalysts were prepared by a sol-gel method. The synthesized photocatalysts were used for the photo degradation of Methylene blue solution under UV light. From Brunauer-Emmett-Teller measurements (BET) data, it was shown the blocking of the micropores on the surface of ACF by treatment of Fe and Ti compound. As shown in SEM images, the ferric compounds and titanium dioxides were fixed onto the ACF surfaces. The result of X-ray powder diffraction showed that the crystal phase contained a mixing anatase and rutile structure and the 'FeO+$TiO_2$' from the composites. The EDX spectra for the elemental analysis showed the presence of C, O, and Ti with Fe peaks. Degradation activity of MB could be attributed to +OH radicals derived from electron/hole pair's reactions due to photolysis of $TiO_2$ and photo-Fenton effect of Fe.

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