Real‐Time Detection of Traces of Benzaldehyde in Benzyl Alcohol as a Solvent by a Flexible Lanthanide Microporous Metal–Organic Framework |
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| Authors: | Dr Huan Zhang Dr Diming Chen Huili Ma Prof Dr Peng Cheng |
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| Institution: | Department of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, 94 Weijin Road, Tianjin 300071 (P.R. China), Fax: (+86)?22‐23502458 |
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| Abstract: | Luminescent 3D lanthanide metal–organic framework (Ln‐MOF) {Tb2(TATAB)2] ? 4 H2O ? 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. |
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| Keywords: | lanthanides luminescence metal– organic frameworks phase transitions sensors |
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