Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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Color Removal of Rhodamine B by Photoelectrocatalytic Process Using Immobilized TiO2

고정화 광촉매를 이용한 광전기촉매 공정에서 Rhodamine B의 색도 제거

  • 김동석 (대구가톨릭대학교 환경과학과) ;
  • 박영식 (대구대학교 보건과학부)
  • Published : 2008.06.30
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Abstract

A feasibility study for the application of the photoelectrocatalytic decolorization of Rhodamine B (RhB) was performed in a photoelectrochemical reactor with immobilized $TiO_2$ particle. The effects of operating conditions, such as current, electrolyte and pH were evaluated. The experimental results showed that optimum $TiO_2$ dosage and current in the photoelectrocatalytic process were 83.3 g/l and 0.5 A, respectively. It was found that the RhB could be degraded more efficiently by this photoelectrocatalytic process than the sum of the two individual oxidation processes (photocatalytic and electrolytic process). The addition of NaCl increased the initial decolorization rate and reduced reaction time. The optimum dosage of NaCl was 0.15 g/l. The decolorization rate of the photoelectrocatalytic process increased sharply with a decrease in pH value. However when the NaCl was added, the pH effect was not high.

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References

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