A lanthanide MOF immobilized in PMMA transparent films as a selective fluorescence sensor for nitroaromatic explosive vapours

Abstract

A selective luminescent sensor was fabricated by simply mixing a Tb(iii)-based MOF with polymethylmetahacrylate enabling to detect sub-ppb range of nitroaromatic vapours.

Two luminescent film sensors constructed from new lanthanide coordination polymers for ratiometric detection of Zn2+ and NH3 in water and their white emission properties

“…24 Among those matrices reported, PMMA has been widely used for its high transparency and light transmission, low cost and facile processing features, and as a result some luminescent film sensors based on the quenching effect for detecting anions and metal ions as well as nitroaromatics were successfully developed. 25–27 However, PMMA film sensors based on LnCPs for Zn 2+ and NH 3 in a ratiometric way have rarely been reported.…”

Recent Advances in Developing Lanthanide Metal–Organic Frameworks for Ratiometric Fluorescent Sensing

“…In particular scenarios, changes in output emission color can be observed, allowing for fast visual screening of analytes. The modulation of antenna effect to quench the lanthanide luminescence is probably the most commonly employed sensing approach by LnMOFs (Cui et al, 2019;Moscoso et al, 2020;Yu et al, 2020). For example, Yu et al (2020) developed a trace water sensor based on Eu-MOF with the mixed ligand of dipicolinic acid (DPA) and 2-aminophthalic acid (PTA-NH 2 ).…”

Rational Design and Facile Synthesis of Dual‐State Emission Fluorophores: Expanding Functionality for the Sensitive Detection of Nitroaromatic Compounds

“…[77] Similarly, thinfilms of the 4 a (10 < M-> 3 M, DCM, 0.5 g/5 mL) were prepared and deposited in an affordable and easy manner onto a glass surface using polybutyleneadipate-coterephthalate (PBAT, a biodegradable plastic) as fixing material after drying. [79] Then, the 4 a-coated filter paper and 4 a@PBAT thinfilm were cut into suitable size for later use. As shown in Figure 9, both the 4 a-coated strips and 4 a@PBAT thinfilms show obviously green/blue fluorescence by UV irradiation, indicating that these test strips can be developed into portable and visible sensing tools.…”