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Korean Carbon Society (한국탄소학회)
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Photo Catalytic Activity of CNT-TiO2 Nano Composite in Degrading Anionic and Cationic Dyes

  • Kim, Sang-Jin (Department of Fine Chemical Engineering and Applied Chemistry, Chungnam National University) ;
  • Im, Ji-Sun (Department of Fine Chemical Engineering and Applied Chemistry, Chungnam National University) ;
  • Kang, Phil-Hyun (Radiation Application Research Division, Korea Atomic Energy Research Institute) ;
  • Kim, Tae-Jin (Core Technology Research Center for Fuel Cell) ;
  • Lee, Young-Seak (Department of Fine Chemical Engineering and Applied Chemistry, Chungnam National University)
  • Received : 2008.11.03
  • Accepted : 2008.12.10
  • Published : 2008.12.30
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Abstract

A CNT-$TiO_2$ nano composite was prepared from titanium chloride ($TiCl_4$) via sol-gel process using multi walled carbon nano tube (MWCNT) followed by calcination at $450^{\circ}C$. Spectral analysis revealed that the formed $TiO_2$ resided on the carbon in anatase form. The effect of adsorption was investigated using aqueous solution of methylene blue and procion blue dye. The photochemical reaction of CNT-$TiO_2$ composite in aqueous suspensions was studied under UV illumination in batch process. The reaction was investigated by monitoring the discoloration of the dyes employing UV-Visible spectro-photometeric technique as a function of irradiation time. The catalyst composites were found to be efficient for the photodegradation of the dye.

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References

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