Selective photocatalytic oxidation of cyclohexanol to cyclohexanone: A spectroscopic and kinetic study

被引：0

作者：

Karimi Estahbanati, M.R. ^{[1
]}

Feilizadeh, Mehrzad ^{[2
]}

Babin, Alexandre ^{[1
]}

Mei, Bastian ^{[3
]}

Mul, Guido ^{[3
]}

Iliuta, Maria C. ^{[1
]}

机构：

[1] Department of Chemical Engineering, 1065 Av. De la Médecine, Université Laval, Québec,Québec,G1V 0A6, Canada

[2] School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran

[3] PhotoCatalytic Synthesis Group, Faculty of Science & Technology of the University of Twente, PO Box 217, Enschede, Netherlands

来源：

Chemical Engineering Journal | 2021年 / 382卷

关键词：

In this work; spectroscopic and kinetic studies were performed on photocatalytic oxidation of cyclohexanol to cyclohexanone. The photocatalytic experiments were performed according to a three-level full factorial design and the rate of cyclohexanone production was determined by HPLC analysis. In situ ATR-FTIR analysis of the photocatalytic reaction revealed that cyclohexanol can be selectively converted to cyclohexanone; without the formation of significant amounts of carbonates and carboxylates. A reaction mechanism based on different steps from charge separation to cyclohexanone molecule formation is proposed. The results were utilized to determine the kinetic parameters (with the help of genetic algorithm) and validate the model. The developed kinetic model illustrates that the rate of cyclohexanone production increases as a power function with respect to the light intensity and decreases as an exponential function with respect to time. An excellent selectivity of cyclohexanone was confirmed by spectroscopic and chromatographic studies. This study demonstrates that photocatalysis can be a promising technology for formation of cyclohexanone from cyclohexanol. © 2019 Elsevier B.V;

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Journal article (JA)

引用

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