• Fabrication of MOF-177 for electrochemical detection of toxic Pb$^{2+}$ and Cd$^{2+} ions

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    • Keywords


      MOF-177; electrochemical sensor; heavy metal ions; chronoamperometry.

    • Abstract


      We have studied the electrochemical behaviour of room-temperature synthesized MOF-177. The MOF-177sample was characterized by various techniques like Fourier transform infrared spectroscopy, scanning electron microscopy,energy dispersive X-ray, powder X-ray diffraction, nuclear magnetic resonance and CHNS elemental analysis. The MOF-177 electrode was prepared and electrochemical performance was carried out to explore the electrical activity of MOF-177.Cyclic voltammetry studies were performed in 0.05 M K$_4$Fe(CN)$_6$ solution and electrochemical sensing experiments were performed in 0.05MH$_2$SO$_4$ and pH 7 buffer solution. A significantly increased electron transfer property has been observed and it has been explored for the electrochemical detection of heavy metal ions. The MOF-177/cp electrode has shown excellent sensitivity towards toxic heavy metal ions such as Pb$^{2+}$ and Cd$^{2+}$ at the limit of detection of 0.004 and 0.03 $\mu$M, respectively.

    • Author Affiliations



      1. Department of Studies in Chemistry, Bangalore University, Jnanabharathi Campus, Bangalore 560056, India
    • Dates

  • Bulletin of Materials Science | News

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