Issue 18, 2011

Zeolitic imidazolate framework-8 as a luminescent material for the sensing of metal ions and small molecules

Abstract

We present a rare example of Zeolitic Imidazolate Framework-8 (ZIF-8), Zn(MeIM)2•(DMF)•(H2O)3, as luminescent probes with multi-function sensitivity to detect metal ions and small molecules. Our results show that the luminescence intensity of ZIF-8 is strongly sensitive to Cu2+ and Cd2+ ions and small molecules such as acetone. In particular, the luminescence intensity of desolvated ZIF-8 proportionally decreases to the concentration of Cu2+, while increases to the concentration of Cd2+ owing to the recognition of element-imidazole nitrogen sites. The luminescence intensity increases gradually with the increase of amounts of acetone in the standard desolvated ZIF-8-emulsions. These results reveal that the ZIFs might be a good luminescent sensor for metal ions and small molecules.

Graphical abstract: Zeolitic imidazolate framework-8 as a luminescent material for the sensing of metal ions and small molecules

Supplementary files

Article information

Article type
Paper
Submitted
12 Jan 2011
Accepted
03 Mar 2011
First published
25 Mar 2011

J. Mater. Chem., 2011,21, 6649-6653

Zeolitic imidazolate framework-8 as a luminescent material for the sensing of metal ions and small molecules

S. Liu, Z. Xiang, Z. Hu, X. Zheng and D. Cao, J. Mater. Chem., 2011, 21, 6649 DOI: 10.1039/C1JM10166H

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