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

Author(s)

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

• Document type: Journal article
• Source: CHEMICAL COMMUNICATIONS; v. 59, n. 91, p. 5-pg., 2023-10-30.

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 CO32-. (AU)

• FAPESP's process: 22/01314-8 - Study of layered double hydroxide (LDH) as potential bifunctional photocatalyst
• Grantee: Danilo Mustafa
• Support Opportunities: Regular Research Grants
• FAPESP's process: 19/25665-1 - Charge and spin instabilities in unconventional superconductors
• Grantee: Fernando Assis Garcia
• Support Opportunities: Regular Research Grants
• FAPESP's process: 15/19210-0 - Nanostructured double layered hydroxides with up e down-conversion properties for applications as sensitizers in solar cells
• Grantee: Danilo Mustafa
• Support Opportunities: Research Grants - Young Investigators Grants
• FAPESP's process: 18/13837-0 - Rare earth spectroscopy as a tool for monitoring controlled release of food additives
• Grantee: Alysson Ferreira Morais
• Support Opportunities: Scholarships in Brazil - Post-Doctoral