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Kinetics of Photocatalytic Oxidation Cyclohexane over Nano TiO 2 and Its Influence Factors

Li Jilian ① Li Xinyong ② Li Wenzhao ② (①Department of Chemistry,Dalian Education College,Dalian 116021;②Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023)  
Photocatalytic oxidation cyclohexane into cyclohexanol and cyclohexanone over nano TiO 2 particles under mild conditions by molecular oxygen have been investigated.It has been found that the kinetics of the above mentioned reaction accords with Langmuir Hinshelwood model.This shows that the kinetic control step is electron transfer process between excited nano TiO 2 and adsorbed H 2O.The influence of various parameters on photocatalytic reaction have been examined.It has been discovered that molecular oxygen and inorganic salts do have a significantly effect on photocatalytic efficiency.
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