Synthesis of 3D coordination polymer[Cu1.5(opda)(tib)(Ac)]and its electrochemical sensing of Pyrimethanil
Metal-organic framework(MOFs)has attracted much attention as a sensor for electrochemical detection of pollutants.In order to achieve sensitive detection of Pyrimethanil,a coordination polymer[Cu1.5(opda)(tib)(Ac)](tib=homopentriimidazole,mpda=isophthallycollic acid,Ac=acetic acid)was synthesized by hydrothermal method.It was characterized by elemental analysis,infrared spectroscopy,thermogravimetric analysis and X-ray single crystal diffraction,and its electrochemical sensing response to Pyrimethanil was studied.The results show that the coordination polymer belongs to the triclinic system,Pī space group,and has a 3D network coordination structure.The specific surface area of the coordination polymer is 5 m2/g,belonging to mesoporous materials,with an average pore size of 15.8 nm.The polymer-modified electrode sensor has good response to Pyrimethanil electrochemical sens-ing,and has good selectivity,repeatability and stability.The detection limit(LOD)is 0.09 μmol/L.The coordina-tion polymer may have a good application prospect in the detection of Pyrimethanil by electrochemical sensing.
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