| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10407106 | Materials Science in Semiconductor Processing | 2016 | 4 Pages |
Abstract
The paper presents a three-layered tandem system of SnO2/CuxS/TiO2, and proves its activity under artificial solar radiation in the phenol photodegradation. The effect of pH (3-9) is comparatively analysed considering the electrostatic interactions substrate - pollutant (based on pzc and pKa), the speciation of the oxidative species (particularly the pH-dependent equilibria) and the photocatalyst stability, evaluated based on changes in surface morphology and optical transmittance. The results show the need to optimize the photocatalytic process design with a compromise between the electrostatic attraction and the photo-corrosion conditions and outlines the neutral pH as best meeting the efficiency and stability prerequisites.
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Authors
Anca Duta, Alexandru Enesca, Cristina Bogatu, Eniko Gyorgy,