A highly stable terbium metal-organic framework for efficient detection of picric acid in water

A highly stable fluorescent terbium MOF (Tb4(paip)6.1.2H2O, paip = 5-(1H-pyrazole-4-yl)isophthalate) showing a sharp green emission (545 nm) and a quantum yield of 21.0% was successfully synthesized. This compound is shown to be a recyclable sensor for detecting picric acid in aqueous solution with both high sensitivity and selectivity, attributed to the electron transfer quenching mechanism. (c) 2021 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.

Automated summary

The study successfully synthesized a highly stable fluorescent terbium MOF with bright green emission and a quantum yield of up to 21.0%. This compound was proven to be a recyclable sensor with high sensitivity and selectivity for detecting picric acid in aqueous solution.