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Real‐Time Detection of Traces of Benzaldehyde in Benzyl Alcohol as a Solvent by a Flexible Lanthanide Microporous Metal–Organic Framework
Author(s) -
Zhang Huan,
Chen Diming,
Ma Huili,
Cheng Peng
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201502033
Subject(s) - benzaldehyde , benzyl alcohol , luminescence , microporous material , chemistry , lanthanide , formaldehyde , metal organic framework , solvent , selectivity , organic chemistry , materials science , catalysis , adsorption , ion , optoelectronics
Luminescent 3D lanthanide metal–organic framework (Ln‐MOF) {[Tb 2 (TATAB) 2 ] ⋅ 4 H 2 O ⋅ 6 DMF} n ( 1 ) was synthesized under solvothermal conditions by using flexible ligand 4,4′,4′′‐ s ‐triazine‐1,3,5‐triyltri‐ p ‐aminobenzoate (TATAB). A phase transition was observed between low temperature and room temperature. The luminescence of 1 could be enhanced by formaldehyde and quenched efficiently by trace amounts of benzaldehyde in solvents such as benzyl alcohol (0.01–2.0 vol %) and ethanol (0.01–2.5 vol %). This is the first use of a Ln‐MOF as chemical sensor for both formaldehyde and benzaldehyde. The high sensitivity and selectivity of the luminescence response of 1 to benzaldehyde allows it to be used as an excellent sensor for identifying benzaldehyde and provides a simple and convenient method for detecting traces of benzaldehyde in benzyl alcohol based injections. This work establishes a new strategy for detection of benzaldehyde in benzyl alcohol by luminescent MOFs.