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Covalent organic frameworks as a sensing platform for water in organic solvent over a broad concentration range
- Source :
- Analytica chimica acta. 1109
- Publication Year :
- 2019
-
Abstract
- A highly crystalline covalent organic frameworks (COFs) formed by condensation reaction between 1, 3, 5-tris (4-aminophenyl) benzene and 4, 4′-biphenyldicarboxaldehyde is utilized as a sensing platform for water in organic solvent over a broad concentration range. The resulting COFs exhibits brilliant fluorescence in various organic solvents such as methanol, DMF, acetonitrile and ethanol, moreover its fluorescence intensity has a significant and rapid response to the content of water in organic solvent over a broad concentration range. The broadest sensing range is achieved over 7%–70% (v/v) for water in DMF, and the lowest limit of detection is 0.042% (v/v) for water in methanol among the investigated organic solvents. The superior properties of the sensing platform expand the application ranges of COFs and endow the resulting COFs with a great prospect in practical applications for highly efficient detecting water in organic solvent.
- Subjects :
- Detection limit
Chemical substance
010401 analytical chemistry
Inorganic chemistry
02 engineering and technology
021001 nanoscience & nanotechnology
Condensation reaction
01 natural sciences
Biochemistry
0104 chemical sciences
Analytical Chemistry
chemistry.chemical_compound
chemistry
Covalent bond
Environmental Chemistry
Methanol
0210 nano-technology
Benzene
Acetonitrile
Science, technology and society
Spectroscopy
Subjects
Details
- ISSN :
- 18734324
- Volume :
- 1109
- Database :
- OpenAIRE
- Journal :
- Analytica chimica acta
- Accession number :
- edsair.doi.dedup.....1922f70f75ff90554fc5a733fe9f4836