一种多功能可回收的铽（III）配位聚合物：在水相介质中对 Fe 和 Cr 阴离子以及苦味酸显示出高选择性和高灵敏度的检测。

A multifunctional and recyclable terbium(iii) coordination polymer: displaying highly selective and sensitive detection of Fe and Cr anions, and picric acid in aqueous media.

机构信息

Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.

出版信息

Dalton Trans. 2018 Aug 14;47(32):11077-11083. doi: 10.1039/c8dt02430h.

DOI:10.1039/c8dt02430h

PMID:30035289

Abstract

A new two-dimensional (2D) terbium(iii) coordination polymer (1) was successfully fabricated by a solvothermal reaction. Luminescence spectra measurements show that 1 can selectively and sensitively detect Fe3+, CrVI (CrO42-/Cr2O72-), and picric acid (PA) in aqueous solution. The limits of detection (LODs) of 1 toward Fe3+, CrVI, and PA are calculated to be 50, 100, and 50 nM, which are significantly lower than the U.S. Environmental Protection Agency's (USEPA) proposed concentrations in drinking water. More significantly, 1 can be easily recycled at least 5 times in the detection process of CrVI (CrO42-/Cr2O72-) and PA through simple processing. For all we know, 1 is the first multifunctional and recyclable Tb-CP, which displays highly selective and sensitive detection of Fe3+, CrVI (CrO42-/Cr2O72-), and PA in aqueous media.

摘要

一种新的二维（2D）铽（III）配位聚合物（1）通过溶剂热反应成功制备。荧光光谱测量表明，1 可以在水溶液中选择性和灵敏地检测 Fe3+、CrVI（CrO42-/Cr2O72-）和苦味酸（PA）。1 对 Fe3+、CrVI 和 PA 的检测限（LOD）分别计算为 50、100 和 50 nM，明显低于美国环境保护署（USEPA）在饮用水中提出的浓度。更重要的是，1 可以在 CrVI（CrO42-/Cr2O72-）和 PA 的检测过程中通过简单的处理至少重复使用 5 次。据我们所知，1 是第一个多功能且可回收的 Tb-CP，它在水介质中对 Fe3+、CrVI（CrO42-/Cr2O72-）和 PA 具有高选择性和灵敏的检测。