کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1488700 | 992294 | 2013 | 5 صفحه PDF | دانلود رایگان |

In this work, we report the uniformly microsized luminescent materials prepared by a solid state reaction of WO3 and Ln3+-exchanged zeolite L at 700 °C. The obtained materials were investigated by SEM, XRD and photoluminescence spectroscopy. The influence of tungstate-oxygen species on the morphology and luminescence of the materials were discussed in detail. Energy transfer from the tungstate-oxygen species to Eu3+ and Tb3+ ions have been demonstrated by the photoluminescence spectra, implying the loading of tungstate-oxygen species into the nanochannels of the crystals and the close proximity of which to Eu3+ ions.
We have reported the modification of Ln3+/ZL microcrystals by the tungstate-oxygen species via a solid state reaction of WO3 and Ln3+-exchanged zeolite L at 700 °C.Figure optionsDownload as PowerPoint slideHighlights
► Luminescent materials were obtained from zeolite L crystals.
► The materials show characteristic luminescence of Eu3+ and Tb3+ ions.
► The framework of zeolite L crystals has been kept during the annealing process.
► Energy transfer from tungstate-oxygen species to lanthanide was confirmed.
Journal: Materials Research Bulletin - Volume 48, Issue 6, June 2013, Pages 2149–2153