Potential use of an anthocyanin-rich extract from berries of Vaccinium meridionale Swartz as sensitizer for TiO2 thin films
By Diaz-Uribe, C.; Vallejo, W.; Camargo, G.; Mu
Published in Journal of Photochemistry and Photobiology A: Chemistry
2019
Abstract
An anthocyanin-rich extract from Andean species Vaccinium meridionale Swartz (Ericaceae, common names: Andean blueberry, wild agraz) was chemically characterized and evaluated as natural dye for potential application as sensitizer for TiO2 thin films. The anthocyanin-rich extract (dye) was obtained from V. meridionale berries through percolation method using an ethanol:water mixture (1:3), in a 2:1 ratio of solvent:sample. Furthermore, the pH effect on stability of V. meridionale extract was studied. Chemical characterizations were carried out by high-performance liquid chromatography with diode array detection (HPLC-DAD), UV
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