Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4765796 | Dyes and Pigments | 2017 | 39 Pages |
Abstract
Results indicated higher degradation rates, by a factor of 20 or higher, under illumination with wavelengths near to the main absorbance band of the red pigment. Two different degradation pathways are observed under the conditions studied. LC-QTOFMS and electrochemistry suggested that in the presence of oxygen the degradation mechanism is an oxidative process where the breakdown of the structure causes the total discoloration. Meanwhile under anoxic conditions, a debromination process takes place while the chromophore, and consequently the color of the molecule in solution, remains essentially intact.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Alba Alvarez-Martin, Stanislav Trashin, Matthias Cuykx, Adrian Covaci, Karolien De Wael, Koen Janssens,