A water-stable europium-MOF as a multifunctional luminescent sensor for some trivalent metal ions (Fe, Cr, Al), PO ions, and nitroaromatic explosives.

Author(s) Zhan, Z.; Liang, X.; Zhang, X.; Jia, Y.; Hu, M.
Journal Dalton Trans
Date Published 2019 Feb 07
Abstract

A luminescent Eu-MOF, namely, [Eu(ppda)(npdc)(HO)]·HO (1) based on the mixed ligands 4-(pyridin-3-yloxy)-phthalic acid (Hppda) and naphthalene-1,4-dicarboxylic acid (Hnpdc) was synthesized under solvothermal conditions. Compound 1 was initially constructed from the 1D binuclear chains of [Ln(npdc)] and further connected by ppda ligands, forming a 2D layered structure. It is worth noting that compound 1 exhibited excellent fluorescence stability in the pH range of 2-13 in an aqueous solution. It was found that compound 1 could not only detect trivalent Fe, Cr and Al ions with high selectivity and recyclability but also serve as an excellent selective sensing material for PO ions among some anions. The detection of NACs demonstrated that compound 1 could also behave as a functional probe with high selectivity, sensitivity, and recyclability, and the detection limit of TNP was 2.97 × 10 M. Furthermore, the luminescent sensing mechanisms for different analytes were speculated.

DOI 10.1039/c8dt04653k
ISSN 1477-9234
Citation Zhan Z, Liang X, Zhang X, Jia Y, Hu M. A water-stable europium-MOF as a multifunctional luminescent sensor for some trivalent metal ions (Fe, Cr, Al), PO ions, and nitroaromatic explosives. Dalton Trans. 2019;48(5):1786-1794.

Related Applications, Forms & Industries