Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, PR China.
Key Laboratory of Beijing on Regional Air Pollution Control, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, PR China.
Ecotoxicol Environ Saf. 2020 Jan 15;187:109821. doi: 10.1016/j.ecoenv.2019.109821. Epub 2019 Oct 31.
In this study, a porous framework MOF-74(Zn) (Zn (DHBDC)(DMF)(HO), Hdondc = 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 μg/L, and its limit of detection could reach to 0.75 μg/L. Furthermore, the possible sensing mechanism of the fluorescence enhancement could be attributed to Förster 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.
在这项研究中，成功合成了具有开放金属位点的多孔骨架 MOF-74(Zn)（Zn(DHBDC)(DMF)(H2O)，Hdondc=1,5-二氧代-2,6-萘二甲酸）。MOF-74(Zn) 作为模板，通过乙二胺（en）接枝到开放金属位点上，命名为 MOF-74(Zn)-en，开发了一种用于快速测定四溴双酚 A（TBBPA）的高选择性和高灵敏度荧光探测器。所得到的 MOF-74(Zn)-en 通过傅里叶变换红外（FT-IR）、扫描电子显微镜（SEM）进行了很好的表征，表现出理想的光致发光性能。荧光增强与 TBBPA 的浓度在 50-400μg/L 范围内呈现出良好的线性关系，其检测限可以达到 0.75μg/L。此外，荧光增强的可能传感机制可以归因于Förster 共振能量转移（FRET）。该结果将为 TBBPA 的检测提供一种方便、快捷的方法。据我所知，这是首例使用 MOF 衍生物通过荧光增强来检测 TBBPA 的案例。
