Photocatalytic Isomerization of Caffeic Acid and its Cyclization to Esculetin
- Authors: Parrino, F; Di Paola, A; Pibiri, I; Loddo, V; Bellardita, M; Palmisano, L
- Publication year: 2015
- Type: eedings
- OA Link: http://hdl.handle.net/10447/177192
Abstract
tThe photoisomerization of trans-caffeic acid to cis-caffeic acid has been studied in the presence of N2in homogeneous aqueous solutions and in suspensions of various TiO2catalysts. The results supportedthe hypothesis of an energy transfer process from TiO2 to the substrate due to the recombination of the photogenerated electron–hole pairs.