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Photocatalytic Destruction of a Mordant Yellow-12 Using Rutile-<TEX>$TiO_2$</TEX>
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2000, v.13 no.5, pp.646-651
Kim,
C. S., &
Choi,
I.
W.
(2000). Photocatalytic Destruction of a Mordant Yellow-12 Using Rutile-<TEX>$TiO_2$</TEX>. Analytical Science and Technology, 13(5), 646-651.
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Abstract
The photocatalytic degradation of Mordant Yellow-12 (MY-12) was investigated using a UV-Visible Spectrophotometer and pH meter. The UV-Visible absorbance spectra of the MY-12 contaminated water before and after treatment were presented in figure. The decrease of absorbance occurs at the range of 250 and 450 nm, this result suggests that photocatalytic degradation involves destruction of the aromatic rings in this experiment. More than 32% of the MY-12 was decomposed after one hour in 26-W fluorescent lamp, whereas it was 17% and 24% respectively in 15-W and 21-W lamps. MY-12 was decomposed completely after three hours in 26-W fluorescent lamp. The destruction rate constants were calculated from the change of absorbance and pH.
- keywords
- photocatalytic degradation, fluorescent, absorbance, Mordant Yellow-12, <TEX>$TiO_2$</TEX>
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