Photoluminescence spectra and dynamics of lanthanide-doped microporous materials
- A series of terbium- and europium-exchanged microporous-mesoporous zeolite Socony Mobil Five (MFI)-type materials such as Zeotile-1 and Zeogrid with varying Si/Al ratios was investigated using FTIR, PXRD, adsorption- desorption isotherms of N-2 at 77 K and time-resolved luminescence spectroscopy. Silylation of the lanthanides-exchanged Zeotile-1 and Zeogrid with hexadecyl trimethoxysilanes via post-synthesis grafting was also studied. The results showed that the lanthanide's photoluminescence spectra and decays were modified due to silylation. The different silylation effects in Zeotile-1 and Zeogrid were correlated with the textural properties of the investigated materials. (C) 2007 Elsevier B.V. All rights reserved.
| Author details: | Carmen Tiseanu, Andre Geßner, Michael Uwe KumkeORCiDGND, Bogdan Gagea, Vasile Ion Parvulescu, Johan Martens |
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| URL: | http://www.sciencedirect.com/science/article/pii/S0022231307003262 |
| DOI: | https://doi.org/10.1016/j.jlumin.2007.10.018 |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2008 |
| Publication year: | 2008 |
| Release date: | 2017/03/24 |
| Source: | Journal of Luminescence. - 128 (2008), 5-6, S. 751 - 753 |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
