期刊
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
卷 411, 期 18, 页码 4213-4220出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-019-01875-2
关键词
Metal-organic framework; Europium; Luminescent sensing; Uranyl ions
资金
- Collaboration Program of Institute of Materials, China Academy of Engineering Physics
- National Natural Science Foundation of China [21775008]
- Shanghai Sailing Program [19YF1448800]
A simple, cost-effective, and portable uranium sensory material with adequate selectivity is increasingly urgent and would be of great importance in environmental monitoring of radionuclides. Herein, we report a novel luminescent europium metal-organic framework (Eu-MOF) with plenty of Lewis basic sites for binding uranyl ions (UO2 (2+)), the most common form of uranium in solution, through a facile one-step solvothermal synthetic route. The mesoporous structure consists of europium nodes and flexible nitrogen-containing ligands with a 29.2 x 20.5 (2) channel along the c-axis. Furthermore, the obtained material displays characteristic fluorescence of trivalent Eu3+ and could be applied as a turn-off sensory probe targeting UO2 (2+) in solution. Differential fluorescent quenching occurred upon a series of potential interfering ions compared to UO2 (2+) and the detection limit as low as 0.9 mu M was achieved with a rapid response.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据