کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1490496 | 992325 | 2011 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis of Sn-doped ZnO nanorods and their photocatalytic properties Synthesis of Sn-doped ZnO nanorods and their photocatalytic properties](/preview/png/1490496.png)
Sn-doped ZnO nanorods were fabricated by a hydrothermal route, and characterized by X-ray diffraction, field emission scanning electron microscope, UV–vis spectroscopy, Raman spectra, solid-state nuclear magnetic resonance (NMR) spectra, and room temperature photoluminescence spectroscopy. Solid-state NMR result confirms that Sn4+ was successfully incorporated into the crystal lattice of ZnO. Room temperature photoluminescence showed that all the as-synthesized products exhibited a weak UV emission (380 nm) and a strong visible emission (540 nm), but the intensities of the latter emission increased with increase in Sn concentration. The improvement of visible emission at 540 nm in the Sn-doped ZnO samples was suggested to be a result of the lattice defects increased by doping of Sn in zinc oxide. In addition, the photocatalytic studies indicated that Sn-doped ZnO nanorods are a kind of promising photocatalyst in remediation of water polluted by some chemically stable azo dyes.
Sn-doped ZnO nanorods have been fabricated by a hydrothermal route. Photocatalytic activity of the Sn-doped ZnO samples increases gradually with an increase of the Sn content.Figure optionsDownload as PowerPoint slideHighlights
► Sn-doped ZnO nanorods were fabricated by a hydrothermal route.
► Solid-state NMR result confirms Sn4+ was incorporated into the lattice of ZnO.
► The visible luminescence intensity increased with increase in Sn concentration.
► Photocatalytic activity of Sn-doped ZnO increases with increasing Sn content.
Journal: Materials Research Bulletin - Volume 46, Issue 7, July 2011, Pages 1107–1112