Journal
DYES AND PIGMENTS
Volume 140, Issue -, Pages 47-55Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2017.01.025
Keywords
Benzimidazole-naphthalene conjugate molecule; Fluorescent sensor; Fluoride detection; Colorimetric and ratiometric; Reversible and reusable sensing; Logic gate
Funding
- National Basic Research Program of China [2012CB720801]
- Guangzhou Science and Technology Project Scientific Special [201607010251]
- 3rd Talents Special Funds of Guangdong Higher Education [Guangdong Finance-Education [2011]431]
- National Key Research Development Program of China [2016YFA0602900]
- NSF of Guangdong Province [2014A030313429]
Ask authors/readers for more resources
A novel benzimidazole-naphthalene conjugate molecule has been successfully designed and applied as a colorimetric and ratiometric fluorescent sensor for direct Visual detection of F- with high selectivity over other anions. Addition of F- to the sensor resulted in an obvious color change from colorless to pale green under ambient light and blue to green under 365 nm UV light, respectively. H-1 NMR and DFT calculations studies confirm that the recognition towards F- is due to the formation of an N-H center dot center dot center dot F hydrogen bond and subsequent deprotonation. In addition, the sensor can be reversible and reusable for sensing fluoride ion in the presence of H+, thus it can be developed as an INHIBIT type logic gate at molecular level. Moreover, the sensor with high sensitivity and fast response has also been successfully applied to the detection of F- from inorganic origins and in the solid state. (C) 2017 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available