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Photocatalytic activity of Fe treated AC/TiO2 composites between visible light and UV light irradiation

가시광선과 UV광선에 의한 Fe 처리된 AC/TiO2 복합체의 광분해활성

  • Meng, Ze-Da (Department of Advanced Materials & Science Engineering, Hanseo University) ;
  • Zhang, Kan (Department of Advanced Materials & Science Engineering, Hanseo University) ;
  • Oh, Won-Chun (Department of Advanced Materials & Science Engineering, Hanseo University)
  • 맹칙달 (한서대학교 신소재공학과) ;
  • 장간 (한서대학교 신소재공학과) ;
  • 오원춘 (한서대학교 신소재공학과)
  • Received : 2009.12.17
  • Accepted : 2010.05.13
  • Published : 2010.05.31

Abstract

FAT compounds photocatalysts were prepared with $TiOSO_4{\cdot}xH_2O$ (TOS) by a sol-gel method. The samples were characterized by scanning electron microscopy (SEM), BET specific surface area, X-ray diffraction analysis (XRD) and energy dispersive X-ray spectroscopy (EDX). The SEM results showed that ferric compounds and titanium dioxide were fixed onto the AC surfaces. The XRD results showed that Fe-AC/$TiO_2$ composites mostly contained anatase phase. EDX showed the presence of C, O, and Ti with Fe peaks in all samples. The photocatalytic activities were evaluated by the photocatalytic oxidation of methylene blue (MB) solution, via compare photodegradation of MB solution under visible light and UV light separately. Fe-AC/$TiO_2$ composites had an excellent photocatalytic under strong visible light irradiation. A small amount of Fe ions in AC/$TiO_2$ particles could obviously enhance their photocatalytic activity.

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