Controllable preparation and fluorescence properties of Y3+ and Eu3+ co-doped mesoporous silica
Controllable preparation and fluorescence properties of Y3+ and Eu3+ co-doped mesoporous silica
复制标题
Y3和Eu3共掺杂介孔二氧化硅的可控制备及其荧光性能
DOI：
10.1016/j.jssc.2010.04.013
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发表时间：
2010-06
影响因子：
3.3
通讯作者：
Xu, Hongyao
中科院分区：
文献类型：
--
作者：
Zhang, Chao;Guang, Shanyi;Xu, Hongyao
研究了稀土Y{sup 3+}和Eu{sup 3+}化学共掺杂荧光介孔氧化硅的可控制备及形成机理。通过小角X射线散射、氮吸附/脱附测量、高分辨透射电子显微镜、电感耦合等离子体原子发射光谱、X射线光电子能谱和荧光光谱对它们的结构、形貌、化学组成和发射性能进行了表征和评价。结果表明，溶液酸度对合成的介孔材料的化学组成有显著影响，在合适的溶液酸度条件下，通过改变原料投料比可以有效地调节合成的介孔材料的化学组成。这些材料具有有序的二维六方介孔结构和高的比表面积，其荧光发射带在526 ~ 682 nm范围内明显展宽，并研究了材料的荧光发射机理和结构对光学性能的影响。- 图形摘要关键词：稀土共掺杂;井然有序：通过将稀土离子直接掺入介孔材料的壁中，Y{sup 3+}和Eu{sup 3+}共掺杂的有序介孔二氧化硅显示出加宽的发射带。
The controllable preparation and forming mechanism of rare-earth Y{sup 3+} and Eu{sup 3+} chemically co-doped fluorescent mesoporous silica were studied in detail. Their structures, morphologies, chemical compositions and emission properties were characterized and evaluated by small angle X-ray scattering, nitrogen adsorption/desorption measurements, high resolution transmission electron microscopy, inductive coupled plasma-atomic emission, X-ray photoelectron spectra and fluorescent spectroscopy. The results show that chemical composition of the resultant mesoporous materials were significantly affected by solution acidity condition, and can be effectively adjusted by varying the feed ratio of raw materials at a suitable solution acidity condition. These materials with a well-ordered two-dimensional hexagonal mesoporous structure and high specific surface area exhibit significantly broadened emission band from 526 to 682 nm and the fluorescent emission mechanism and influence of materials structure on optical properties were investigated. - Graphical abstract Keywords: RE co-doped; Well-ordered: The Y{sup 3+} and Eu{sup 3+} co-doped well-ordered mesoporous silica through direct incorporation of rare-earth ions into wall of mesoporous materials show a widened emission band.
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影响因子：
6
作者：
Carino, Ida Stefania;Pasqua, Luigi;Picci, Nevio
通讯作者：
Picci, Nevio
影响因子：
3.2
作者：
M. Yin;C. Duan;Wei-ping Zhang;L. Lou;S. Xia;J. Krupa
通讯作者：
M. Yin;C. Duan;Wei-ping Zhang;L. Lou;S. Xia;J. Krupa
DOI：
10.1007/s10856-008-3468-4
发表时间：
2008-10-01
影响因子：
3.7
作者：
Cauda, V.;Fiorilli, S.;Garrone, E.
通讯作者：
Garrone, E.
影响因子：
3.5
作者：
Fagundes, L. B.;Sousa, T. G. F.;Sousa, E. M. B.
通讯作者：
Sousa, E. M. B.
DOI：
10.1021/jp063957i
发表时间：
2006-10
期刊：
The journal of physical chemistry. B
影响因子：
--
作者：
M. Selvaraj;T. G. Lee
通讯作者：
M. Selvaraj;T. G. Lee