TiO2-Photocatalyzed Epoxidation of 1-Decene by H2O2 under Visible Light

doi:10.1006/jcat.2001.3384

Journal of Catalysis

Volume 204, Issue 1, 15 November 2001, Pages 163-168

https://doi.org/10.1006/jcat.2001.3384 Get rights and content

Abstract

1-Decene was converted to 1,2-epoxydecane on UV-irradiated TiO₂ powder using molecular oxygen as the oxygen source. Other main products were nonanal and 2-decanone. For anatase-form TiO₂ powders, the reaction rate was hardly affected by addition of hydrogen peroxide to the solution. In contrast, for rutile-form TiO₂ powders, the rate of epoxide generation was significantly increased by addition of hydrogen peroxide. In this case, the reaction occurred under visible light as well as UV light. The selectivity of the production of 1,2-epoxydecane was higher under visible light than under UV light. The conversion efficiency of an incident photon to 1,2-epoxydecane was about 2% when irradiated with visible light in the range 440–480 nm. UV–visible diffuse reflection spectroscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy suggested the generation of a Ti–η²-peroxide on rutile TiO₂ surface after treatment with hydrogen peroxide. The initial step of the reaction under visible light was attributed to a photochemical reaction of this peroxide with 1-decene.

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Regular ArticleTiO2-Photocatalyzed Epoxidation of 1-Decene by H2O2 under Visible Light

Abstract

Electrochim. Acta

J. Catal.

Tetrahedron Lett.

J. Photochem. Photobiol. A

Thin Solid Film

Surf. Sci.

Adv. Catal.

J. Phys. Chem. B

J. Phys. Chem.

Chem. Rev.

Chem. Commun.

Chem. Lett.

Chem. Lett.

Chem. Lett.

J. Chem. Soc., Faraday Trans. 1

Regular Article
TiO₂-Photocatalyzed Epoxidation of 1-Decene by H₂O₂ under Visible Light