한국산학기술학회논문지 (Journal of the Korea Academia-Industrial cooperation Society)

  • 제11권5호
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  • Pages.1760-1767
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  • 2010
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  • 1975-4701(pISSN)
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  • 2288-4688(eISSN)
한국산학기술학회 (The Korea Academia-Industrial cooperation Society)
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가시광선과 UV광선에 의한 Fe 처리된 AC/TiO2 복합체의 광분해활성

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

  • 맹칙달 (한서대학교 신소재공학과) ;
  • 장간 (한서대학교 신소재공학과) ;
  • 오원춘 (한서대학교 신소재공학과)
  • 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)
  • 투고 : 2009.12.17
  • 심사 : 2010.05.13
  • 발행 : 2010.05.31
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초록

FAT복합체는 TOS ($TiOSO_4{\cdot}xH_2O$)를 사용하여 솔-겔 방법으로 제조한다. 시료들은 SEM, 비표면적, XRD 및 EDX를 사용하여 분석하였다. SEM결과로서 Fe 와 $TiO_2$ 입자가 AC 표면에 분포하고 있다. XRD 결과에서 Fe-AC/$TiO_2$ 복합체는 다 anatase결정상을 하고 있다. 그리고 EDX 결과에서 C, O, Ti 및 Fe 원소가 Fe-AC/$TiO_2$ 복합체에 다 존재하고 있다. 복합체의 광촉매 활성은 가시광선과 UV광선을 사용하고 메틸렌불루(MB)의 분해 효과에 의해 측정한다. Fe-AC/$TiO_2$ 복합체는 강한 가시광선 조사에서 우수한 광촉매 효과가 나타난다. AC/$TiO_2$ 복합체에 있는 소량 존재하는 Fe 원소가 그들의 광촉매 활성을 강화할 수 있다.

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.

키워드

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