Hybrid materials of SBA-15 functionalized by Tb3+ complexes of modified acetylacetone: Covalently bonded assembly and photoluminescence

被引：15

作者：

Kong, Li-Li ^{[1
]}

Yan, Bing ^{[1
]}

Li, Ying ^{[1
]}

机构：

[1] Tongji Univ, Dept Chem, Shanghai 200092, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 481卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Chemical synthesis; Sol-gel synthesis; Luminescence; LUMINESCENCE PROPERTIES; SILICA; ENCAPSULATION; POLYMERS;

D O I：

10.1016/j.jallcom.2009.03.039

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The synthesis and characterization of organic-inorganic mesoporous luminescent hybrid materials were presented. The hybrid materials were obtained by linking the binary and ternary Tb3+ complexes to the functionalized ordered mesoporous SBA-15 with modified acetylacetone (ACAC-Si), and the synthesis was achieved via co-condensation of tetraethoxysilane (TEOS) in the presence of Pluronic P123 surfactant as a template. The precursor for the preparation of mesoporous materials was synthesized by grafting acetylacetone (ACAC) to the coupling agent 3-(triethoxysilyl)-propyl isocyanate (TEPIC). The mesoporous material covalently bonded Tb3+ Complex (denoted as Tb(ACAC-SBA-15)(3)phen) exhibits the stronger characteristic emission of Tb3+ due to the triplet state energy of organic ligand ACAC-Si matches with the emissive energy level of Tb3+ very well. This material was obtained by introducing Tb(NO3)(3) and 1,10-phenanthroline (phen) complex into the hybrid material via a ligand exchange reaction. The luminescence properties of the resulting material (denoted as Tb(ACAC-SBA-15)(3) phen) were characterized in detail, and the results reveal that luminescent mesoporous materials have high surface area, uniformity in the mesopore structure and good crystallinity. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：549 / 554

页数：6

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