Photocatalytic Oxidation of Alcohols on TiO2
- 1 October 1988
- journal article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 61 (10) , 3429-3434
- https://doi.org/10.1246/bcsj.61.3429
Abstract
The reaction mechanisms of the photocatalytic oxidation of several different alcohols on TiO2 were investigated by three experimental techniques: spin trapping, photocurrent measurement, and product analysis. The results are interpreted according to the band model of a semiconductor and current doubling. It was found that alcohols with α-hydrogens gave low concentrations of spin adducts since their photoproduced radicals have short lifetimes on TiO2 due to a current-doubling process. Also, it was found that oxygen participated in a radical chain mechanism in the photocatalytic oxidation of ethanol to acetaldehyde.This publication has 18 references indexed in Scilit:
- Photoreactivity of tungsten trioxide dispersions: spin trapping and electron spin resonance detection of radical intermediatesThe Journal of Physical Chemistry, 1986
- A novel photocatalytic process of amine N-alkylation by platinized semiconductor particles suspended in alcoholsJournal of the American Chemical Society, 1986
- Room Temperature Oxidations, Isotopic Exchanges, and Dehydrogenations over Illuminated Neat or Metal-Supporting Semiconductor CatalystsPublished by American Chemical Society (ACS) ,1985
- Controlled Organic Redox Reactivity on Irradiated Semiconductor SurfacesPublished by American Chemical Society (ACS) ,1985
- Semiconductor-Catalyzed Photoreactions of Organic CompoundsPublished by American Chemical Society (ACS) ,1985
- Photoelectrochemical Oxidation of Alcohols on Polycrystalline Zinc OxideBulletin of the Chemical Society of Japan, 1984
- Heterogeneous photocatalytic oxidation of aromatic compounds on TiO2Nature, 1981
- Spin trapping of the •CO2− radical in aqueous mediumCanadian Journal of Chemistry, 1979
- Direct observation of radical intermediates in the photo-Kolbe reaction - heterogeneous photocatalytic radical formation by electron spin resonanceJournal of the American Chemical Society, 1978
- Chemical Reactions Involving Holes at the Zinc Oxide Single Crystal AnodeJournal of the Electrochemical Society, 1968