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Synthesis of novel ZnO/ZnAl2O4 multi co-centric nanotubes and their long-term stability in photocatalytic application
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nasr, Maryline Viter, Roman Eid, Cynthia Warmont, Fabienne Habchi, R. Miele, Philippe Bechelany, Mikhael |
| Copyright Year | 2016 |
| Abstract | Based on the Kirkendall effect, novel double, triple and quadruple co-centric nanotubes of ZnO/ZnAl2O4 have been successfully fabricated by combining the two techniques of electrospinning and atomic layer deposition. The as-prepared samples were annealed at 900 °C under air. Their morphological, structural and optical properties were studied by Scanning Electron Microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Energy-Dispersive X-ray spectroscopy (EDX), UV-visible spectrophotometry, Raman spectroscopy, photoluminescence (PL) and reflectance emission. The performances and long-term stability of these multi co-centric nanotubes for photocatalytic applications have been evaluated under the same conditions. As result, in the photodegradation of methyl orange (MO) under UV irradiation, the triple and quadruple co-centric nanotubes of ZnO/ZnAl2O4 exhibit a higher photodegradation efficiency (94% and 99%, respectively) in repeated and long-term applications compared to the pure ZnO which has very low long-term photocatalytic stability. Thus, the fact of coupling these two semiconductors ensured a high photocatalytic activity and long term stability. |
| Starting Page | 103692 |
| Ending Page | 103699 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C6RA22623J |
| Volume Number | 6 |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/c6/ra/c6ra22623j/c6ra22623j1.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/C6RA22623J |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
