| Autor: |
Mahmoudi Chenari, Hossein, Zamiri, Reza, Maria Tobaldi, David, Shabani, Mehdi, Rebelo, Avito, Kumar, J., Salehizadeh, S., Graça, M., Soares, M., António Labrincha, João, Ferreira, José |
| Zdroj: |
Journal of Sol-Gel Science & Technology; Nov2017, Vol. 84 Issue 2, p274-282, 9p |
| Abstrakt: |
In this study, nanocrystalline ZnO-SnO mixed metal oxide powder was prepared by co-precipitation using Zn(CHCOO)∙2HO and SnCl∙5HO as precursor materials. The powder was characterized by X-ray diffraction, scanning electron microscopy, and Fourier transform infrared spectroscopy. Williamson-Hall method was used to evaluate the micro structural parameters of ZnO-SnO such as crystallite sizes and lattice strain. The photoluminescence property of the sample was studied at different temperatures (10-300 K). Results showed that the emission intensity decreases with temperature increasing. The photocatalytic activity at the gas-solid interface was assessed by monitoring the degradation of nitrogen oxides, a major atmospheric pollutant. The results show that the nanocrystalline ZnO-SnO mixed metal oxide powder exhibits higher and more stable photocatalytic activity against photocorrosion than ZnO alone. Graphical abstract: [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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