Luminescent mesoporous hybrid materials grafted with lanthanide complexes synthesized by Michael-like addition reaction

被引：5

作者：

Wang, Ting ^{[1
,2
]}

Hu, Bin ^{[1
]}

Huang, Jingbin ^{[1
,2
]}

Li, Qing-Feng ^{[1
]}

Wang, Zhenling ^{[1
]}

机构：

[1] Zhoukou Normal Univ, Key Lab Rare Earth Funct Mat & Applicat, Henan Key Lab Rare Earth Funct Mat, Zhoukou 466001, Peoples R China

[2] Zhengzhou Univ, Coll Chem & Mol Engn, Zhengzhou 450001, Henan, Peoples R China

来源：

JOURNAL OF POROUS MATERIALS | 2019年 / 26卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Lanthanide complexes; Michael-like addition reaction; Mesoporous; Hybrid; ORGANIC-INORGANIC HYBRIDS; HIGHLY LUMINESCENT; PHOTOPHYSICAL PROPERTIES; ENERGY-TRANSFER; SILICA; FLUORESCENT; NANOPARTICLES; SBA-15; EU3+; LIGANDS;

D O I：

10.1007/s10934-018-0656-6

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

New kind of luminescent mesoporous hybrid materials were prepared via Michael-like addition reaction. 4-Vinylpyridine-2,6-dicarboxylic acid was selected as a bifunctional chelating ligand, which contains (1) an electron deficient double bond that can react with the thiol group of mesoporous silica by Michael-like addition reaction, (2) a metal chelating unit. The luminescent hybrid materials [MCM-41-SH-Ln(DPA)(3), Ln=Tb, Eu] can be prepared through Michael-like addition reaction of thiol-functional MCM-41 and 4-vinylpyridine-2,6-dicarboxylic acid, and then assembling with lanthanide ions and pyridine-2,6-dicarboxylic acid (DPA). FT-IR, XRD, UV-Vis, TEM, N-2 adsorption/desorption and photoluminescence measurements were employed to characterize the mesostructure, composition and optical properties of these hybrids. The results reveal that the lanthanide complexes were successfully grafted onto the functional MCM-41, and the ordered mesoporous structure of MCM-41 were preserved after the grafting procedure. Under the excitation of UV light, the obtained MCM-41-SH-Tb(DPA)(3) and MCM-41-SH-Eu(DPA)(3) exhibit bright green and red emission, long luminescent lifetimes and high quantum efficiency.

引用

页码：567 / 574

页数：8

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