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KMID : 1024520040130060599
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Journal of the Environmental Sciences
2004 Volume.13 No. 6 p.599 ~ p.603
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Photocatalytic Degradation of Brilliant Blue FCF with TiO₂ Suspension
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Jeong Kap-Seop
Choi Soo-Il
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Abstract
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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 TiO was more effective than in rutile type of 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 at initial pH 3.1, 5.2 and 7.1 of brilliant blue FCF solution, respectively.
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KEYWORD
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Photocatalytic degradation, UV/TiO₂, Brilliant blue FCF, Tar colorant, Dye
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