Eu3+ doped ZnAl layered double hydroxides as calibrationless, fluorescent sensors for carbonate
Literature Information
Ivan G. N. Silva, Bruno J. Ferreira, Alexandre C. Teixeira, Huayna Terraschke, Fernando A. Garcia, Danilo Mustafa
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−.
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