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Study on the Photocatalytic Efficiencies of <TEX>$TiO_2$</TEX>
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2001, v.14 no.1, pp.15-20
Lee,
J., Oh,
H., Jang,
J., &
Chi,
C.
(2001). Study on the Photocatalytic Efficiencies of <TEX>$TiO_2$</TEX>. Analytical Science and Technology, 14(1), 15-20.
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Abstract
Photocatalytic <TEX>$TiO_2$</TEX> films were prepared by anodic oxidation at 180 V and their structural difference caused by oxidation conditions was studies. The microstructure of <TEX>$TiO_2$</TEX> films in <TEX>$H_2SO_4$</TEX> and <TEX>$H_2SO_4/H_2O_2$</TEX> solution was mixed type of rutile and anatase. However, the <TEX>$TiO_2$</TEX> layer formed in <TEX>$H_2SO_4/H_3PO_4$</TEX> and <TEX>$H_2SO_4/H_3PO_4/H_2O_2$</TEX> mixture was mostly anatase type. All <TEX>$TiO_2$</TEX> films prepared by anodic oxidation exhibited photocatalytic properties. The photocatalytic degradation of aniline blue was first order reaction with similar rate constants at all oxidative conditions examined in this work.
- keywords
- <TEX>$TiO_2$</TEX>, photocatalyst, anatase, aniline blue, order of reaction
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