4.7 Article

Photocatalytic decarboxylation of lactic acid by Pt/TiO2

Journal

CHEMICAL COMMUNICATIONS
Volume 52, Issue 78, Pages 11634-11637

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cc06530a

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Funding

  1. European Union FP7 NMP project NOVACAM [FP7-NMP-2013-EU-Japan-604319]

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A photocatalytic route for the conversion of lactic acid to acetaldehyde in water is demonstrated. Direct UV photolysis of lactic acid yields CO2 and ethanol via a radical mechanism. Pt/TiO2 considerably increases the rate of lactic acid decarboxylation with acetaldehyde, H-2 and CO2 as the main products. A concerted photodecarboxylation/dehydrogenation mechanism is proposed.

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