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Citation: LI Jing-Yin, GUO Yu-Feng, ZHANG Ya-Tong, WANG Ji-Zhi. Photocatalytic Degradation of 2,4-Dichlorophenol by TiO₂/glass Film[J]. Chinese Journal of Applied Chemistry, ;2002, 19(5): 494-496. shu

Photocatalytic Degradation of 2,4-Dichlorophenol by TiO₂/glass Film

1.
a College of Science, Hebei University of Science and Technology, Shijiazhuang 050018;
2.
b College of Environment Science, Hebei University of Science and Technology, Shijiazhuang

Corresponding author: LI Jing-Yin,
Received Date: 10 September 2001
Available Online: 6 November 2001
Fund Project: 河北省教育厅科研计划资助项目(2000220) (2000220)

TiO₂/glass film photocatalysts have been prepared by a sol-gel method with titanium tetrabutoxide as precursor, and used in photocatalytic degradation of 2,4-dichlorophenol(DCP) in aqueous solution. The experiments indicated that the TiO₂/glass film coated with five layers of TiO₂ sol in the case of higher pH value(≥10) or lower pH value(≤2) showed a higher catalytic activity, and the relationship between initial DCP concentration(c₀) and reaction rate(r₀) follows Langmuir Hinshelwood equation. The photocatalytic degradation kinetics of DCP(c₀≤0.5 mmol/L) is of first order kinetics.
- TiO₂/glass film,
- photocatalytic degradation,
- dichlorophenol
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Photocatalytic Degradation of 2,4-Dichlorophenol by TiO₂/glass Film