Herein, we report the preparation of zeolite NIR luminescence materials with a remarkable increase of lumi- nescence intensity by attaching stopper molecule （an imidazolium salt） to the channel entrances of zeolite ...Herein, we report the preparation of zeolite NIR luminescence materials with a remarkable increase of lumi- nescence intensity by attaching stopper molecule （an imidazolium salt） to the channel entrances of zeolite L loading with NIR lanthanide （Er3＋ or Nd3＋）β-diketonate complexes. This results from the formation of Ln3＋-β-diketonate complexes （Ln=Er or Nd） with high coordination numbers through the decreasing of the proton strength in the ze- olite channels. The obtained materials were characterized with SEM and photoluminescence spectroscopy. We be- lieve that this hybrid material will be an appealing candidate for the applications of optical fiber, telecommunica- tions and bio-imaging.展开更多
基金Financial support by the National Key Basic Re- search Program （No. 2012CB626804）, the National Natural Science Foundation of China （Nos. 20901022, 21171046, 21271060 and 21236001）, the Tianjin Natu- ral Science Foundation （No. 13JCYBJC18400）, the Natural Science Foundation of Hebei Province （No. B2013202243）, the Program for Changjiang Scholars and Innovative Research Team in University （PCSIRT, IRT1059） is gratefully acknowledged.
文摘Herein, we report the preparation of zeolite NIR luminescence materials with a remarkable increase of lumi- nescence intensity by attaching stopper molecule （an imidazolium salt） to the channel entrances of zeolite L loading with NIR lanthanide （Er3＋ or Nd3＋）β-diketonate complexes. This results from the formation of Ln3＋-β-diketonate complexes （Ln=Er or Nd） with high coordination numbers through the decreasing of the proton strength in the ze- olite channels. The obtained materials were characterized with SEM and photoluminescence spectroscopy. We be- lieve that this hybrid material will be an appealing candidate for the applications of optical fiber, telecommunica- tions and bio-imaging.
