Europium activated yttrium hybrid microporous system for luminescent sensing toxic anion of Cr(VI) species

被引：59
作者：
Duan, Tian-Wei [1 ]
Yan, Bing [1 ]
Weng, Han [1 ]
机构：
[1] Tongji Univ, Dept Chem, Shanghai 200092, Peoples R China
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2015年 / 217卷
基金：
中国国家自然科学基金;
关键词：
Sensing Cr(VI) anion; Luminescence; Rare earth ion functionalized hybrid system; Microporous materials; METAL-ORGANIC FRAMEWORK; IONS; PROBE; MOLECULES; FLUORIDE; BEHAVIOR; SENSOR; OXIDE; EU3+; MOF;
D O I：
10.1016/j.micromeso.2015.06.016
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A new method was put forward to synthesize nanoscale rare earth hybrid systems via incorporating europium ions into yttrium centered metal-organic framework in H2O-DMF solvent Obtained Ln-MOF (Y(BTC)(DMF):0.1Eu, 1) is isostructural with reported metal organic framework Y(BTC)(H2O)(3)(DMF)(1.1) (H3BTC = 1,3,5-benzenetricarboxylate, DMF = N,N-dimethylformamide), which were characterized by XRD, SEM, TEM, TGA and BET. Besides, a structural transformation of I appeared when it was immersed in aqueous solution, consequently forming 1D coordination polymers ([Y(BTC)(H2O)(6)](n):0.1Eu, la). 1 possesses excellent luminescent performance. Besides, la was developed for detection of CrO42- and Cr2O72- in aqueous solution. Good fluorescence stability in aqueous solution, low detection limit and broad linear range of la suggest it has the potential for sensing of Cr(VI) anion species in environment and biological system. (C) 2015 Elsevier Inc. All rights reserved.
引用
收藏
页码：196 / 202
页数：7
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