Ratiometric luminescence sensing based on a mixed Ce/Eu metal-organic framework

被引：59

作者：

Yue, Dan ^{[1
]}

Huang, Yike ^{[1
]}

Zhang, Ling ^{[1
]}

Jiang, Ke ^{[1
]}

Zhang, Xin ^{[1
]}

Cui, Yuanjing ^{[1
]}

Yu, Yang ^{[1
]}

Qian, Guodong ^{[1
]}

机构：

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

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2018年 / 6卷 / 08期

基金：

中国国家自然科学基金;

关键词：

ASCORBIC-ACID; TURN-ON; QUANTUM DOTS; FLUORESCENCE DETECTION; SENSITIVE DETECTION; SENSOR; NANOPARTICLES; PROBE; CHEMOSENSOR; EXPLOSIVES;

D O I：

10.1039/c7tc05309f

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ascorbic acid (AA), which is a well-known antioxidant, reacts with reactive oxygen species (ROS) inside the human body. It is crucial for the proper functioning of living organisms, however, the sensing of AA is still a huge challenge. Herein, a mixed Ce/Eu metal-organic framework [ZJU-136-Ce1-xEux (x = 0.24, 0.36)] is designed and synthesized. Due to the specific redox reaction between the enediol group of AA and Ce4+, the fluorescence intensity of the ligand increases significantly with a simultaneous fluorescence quenching of Eu ions, resulting in a ratiometric fluorescent probe for detecting AA. It is worth noting that the ZJU-136-Ce1-xEux (x = 0.24, 0.36) exhibited good luminescence properties and ratiometric fluorescence for AA determination. Furthermore, the regeneration cycle test shows that the mixed Ce/Eu metal-organic framework can be used as a potential ratiometric sensor for AA determination.

引用

页码：2054 / 2059

页数：6

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