Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 21, Issue 18, Pages 6649-6653Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1jm10166h
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Funding
- National Basic Research Program of China [2011CB706900]
- Huo Yingdong Fundamental Research Funding [121070]
- Ministry of Education [20100010110001]
- NSF of China [20736002]
- BUCT
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We present a rare example of Zeolitic Imidazolate Framework-8 (ZIF-8), Zn(MeIM)(2)center dot(DMF)center dot(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.
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