Eu3+ doped ZnAl layered double hydroxides as calibrationless, fluorescent sensors for carbonate

Alysson F Morais; Ivan G N Silva; Bruno J Ferreira; Alexandre C Teixeira; Sreeprasanth P Sree; Huayna Terraschke; Fernando A Garcia; Eric Breynaert; Danilo Mustafa

doi:10.1039/d3cc03066k

Eu³⁺ doped ZnAl layered double hydroxides as calibrationless, fluorescent sensors for carbonate

Chem Commun (Camb). 2023 Nov 14;59(91):13571-13574. doi: 10.1039/d3cc03066k.

Authors

Alysson F Morais^{1

2

3}, Ivan G N Silva¹, Bruno J Ferreira¹, Alexandre C Teixeira¹, Sreeprasanth P Sree^{2

4}, Huayna Terraschke⁵, Fernando A Garcia¹, Eric Breynaert^{2

3}, Danilo Mustafa¹

Affiliations

¹ Instituto de Física da Universidade de São Paulo, 05508-090 - São Paulo, SP, Brazil. dmustafa@if.usp.br.
² Center for Surface Chemistry and Catalysis, KU Leuven, B-3001, Leuven, Belgium. alysson.morais@kuleuven.be.
³ NMR/X-Ray platform for Convergence Research (NMRCoRe), KU Leuven, 3001, Leuven, Belgium.
⁴ Department of Materials Engineering, KU Leuven, 3001, Leuven, Belgium.
⁵ Institut für Anorganische Chemie, CAU Kiel, 24118, Kiel, Germany.

Abstract

The photoluminescence properties (PL) of Eu³⁺ hosted in the hydroxide layers of layered double hydroxides (LDHs) enables calibrationless quantification of anions in the interlayers. The concept is demonstrated during the nitrate-to-carbonate ion exchange in Zn²⁺/Al³⁺/Eu³⁺ LDHs and can be implemented as a remote optical sensor to detect intrusion of anions such as Cl^- or CO₃^2-.