Isostructural Tb3+/Eu3+ Co-Doped Metal Organic Framework Based on Pyridine-Containing Dicarboxylate Ligands for Ratiometric Luminescence Temperature Sensing

被引：127

作者：

Zhao, Dian ^{[1
,2
]}

Yue, Dan ^{[2
]}

Jiang, Ke ^{[2
]}

Zhang, Ling ^{[2
]}

Li, Chunxia ^{[1
]}

Qian, Guodong ^{[2
]}

机构：

[1] Zhejiang Normal Univ, Key Lab, Minist Educ Adv Catalysis Mat, Dept Chem, Jinhua 321004, Peoples R China

[2] Zhejiang Univ, State Key Lab Silicon Mat, Cyrus Tang Ctr Sensor Mat & Applicat, Sch Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China

来源：

INORGANIC CHEMISTRY | 2019年 / 58卷 / 04期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

SENSORS; MOFS;

D O I：

10.1021/acs.inorgchem.8b03225

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In this work, we prepared two types of isostructural Ln(3+)-based metal organic frameworks (LnMOFs) under solvothermal conditions, where two structurally similar pyridine-containing dicarboxylate ligands, 6-(4-carboxyphenyl)-nicotinic acid and [2,2'-bipyridine]-5,5'-dicarboxylic acid, were used as the organic linkers. The as-synthesized LnMOF compounds were characterized using single-crystal X-ray diffraction (XRD), powder XRD, and thermogravimetric analysis. With the lanthanide co-doping approach, two mixed LnMOFs, Tb(0.95)Eu(0.05)cpna and Tb(0.95)Eu(0.05)bpydc, were obtained and evaluated for application as potential ratiometric luminescence thermometers. The temperature-dependent luminescence of the two materials was investigated, and their emission intensities, luminescence lifetimes, and thermometric parameters were compared. They exhibit an excellent S-shaped response for temperatures in the range of 25-300 K, with favorable relative sensitivity and temperature uncertainty. Moreover, their color changes from green at 25 K to red at 300 K, so that they are also suitable as colorimetric luminescent probes.

引用

页码：2637 / 2644

页数：8

共 43 条

[1] Luminescent metal-organic frameworks [J].