Journal
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
Volume 187, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ecoenv.2019.109821
Keywords
Tetrabromobisphenol-A; Ammoniated MOF-74(Zn) derivatives; Fluorescent sensor
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Funding
- Beijing University of Technology [005000514119050, 005000546318514]
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In this study, a porous framework MOF-74(Zn) (Zn-2 (DFIBDC)(OMF)(H2O)(2), H(4)dondc = 1, 5-dioxido-2, 6-naphthalenedicarboxylic acid) with open metal sites was successful synthesized. MOF-74(Zn) as a template was grafted on the open metal sites with ethylenediamine (en) named MOF-74(Zn)-en to develop a highly selective and sensitive fluorescence detector for rapid determination of tetrabromobisphenol A (TBBPA). The obtained MOF-74(Zn)-en was well characterized by Fourier Transform Infrared (FT-IR), Scanning Electron Microscopy (SEM) and showed ideal properties of photoluminescence. The fluorescence enhancement showed a good linear relationship with the concentrations of TBBPA in the range of 50-400 mu g/L, and its limit of detection could reach to 0.75 mu g/L. Furthermore, the possible sensing mechanism of the fluorescence enhancement could be attributed to Forster resonance energy transfer (FRET). The results will provide a convenient and quick method for detection of TBBPA. To the best of my knowledge, this is the first case to detect TBBPA by fluorescence enhancement with MOF derivatives.
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