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TiO₂ 현탁액에 의한 Brilliant Blue FCF의 광촉매 분해
정갑섭,최수일 한국환경과학회 2004 한국환경과학회지 Vol.13 No.6
In a batch reactor, the characteristics of photocatalytic degradation of brilliant blue FCF in titanium dioxide suspension was studied under the irradiation of ultra-violet ray. Photocatalytic degradation in anatase type of TiO₂ was more effective than in rutile type of TiO₂ below the dosage of 5g. The degradation rate was slightly increased with decreasing initial pH of brilliant blue FCF aqueous solution, but rapidly increased with the addition of oxidant. Potassium bromate acted as more effective oxidant than ammonium persulfate. The photocatalytic degradation rate of brilliant blue FCF was pseudo-first order with rate constants of 0.012, 0.006 and 0.003min^(-1) at initial pH 3.1, 5.2 and 7.1 of brilliant blue FCF solution, respectively.
UV/TiO_2에 의한 수용성 염료의 분해에 관한 연구
정갑섭 한국환경과학회 2003 한국환경과학회지 Vol.12 No.3
The characteristics of photocatalytic decomposition of dye waste water by titanium dioxide was studied in a batch reactor under constant strength of ultra-violet ray. The decomposition rate of methyl orange by TiO_2 was pseudo-first order, anatase type TiO_2 was more effective than rutile type below the dosage of 5g. The decomposition rate was increased with decreasing initial pH, increasing reaction temperature B>eosin Y>methyl orange.