Photocatalytic Oxidation Kinetics of Thiophene with Nano-TiO2 as Photocatalyst

Author

Li, Fa-Tang ; Liu, Rui-Hong ; Sun, Zhi-min ; Zhao, Di-shun

Author_Institution

Coll. of Sci., Hebei Univ. of Sci. & Technol., Shijiazhuang

fYear

2008

Firstpage

3887

Lastpage

3890

Abstract

Photocatalytic oxidative kinetics of thiophene in n-octane/water extraction system was studied with nano-TiO₂ powders as photocatalyst and O₂ in air as oxidant. Influence of initial concentration of thiophene and addition of TiO₂ on reaction rate constant and half time were investigated. Kinetics equation was founded. The results showed that the approviate addition of TiO₂ was 0.1 g in 100 mL reaction system and the photooxidation kinetics of thiophene with TiO₂ was first-order with rate constant of 0.6405 h^-1 and half-time of 1.0822 h under the conditions with initial concentration of thiophene at 800 muLldrL^-1 and addition of TiO₂ at 0.1 g. The reaction rate constant increased with the decrease of initial concentration of thiophene.

Keywords

air pollution control; catalysis; catalysts; nanoparticles; nanotechnology; organic compounds; oxidation; petroleum; photochemistry; reaction rate constants; titanium compounds; TiO₂; emission control; fluid catalytic cracking gasoline; n-octane-water extraction system; nanopowder preparation; oxidant; photocatalyst; photocatalytic oxidation kinetics; reaction half time; reaction rate constant; thiophene concentration; Chemical technology; Crystallization; Educational institutions; Equations; Fuels; Kinetic theory; Oxidation; Petroleum; Powders; Titanium;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering, 2008. ICBBE 2008. The 2nd International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-1747-6

Electronic_ISBN

978-1-4244-1748-3

Type

conf

DOI

10.1109/ICBBE.2008.473

Filename

4535353