Electrochemical And Photocatalytic Studies of Novel Azo Ligand and Their Metal Complexes; Synthesis, Characterization and Biological Evaluation
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Abstract
The Novel Azo Dye ligand, 4-[(2E)-3-(6-nitro-1,3-benzothiazol-2-yl)triaz-2-en-1-yl]benzoic acid (NBA) and its Co(II), Ni(II) and Cu(II) complexes have been synthesized. The newly synthesized compounds characterized using physiochemical techniques. XRD pattern indicate crystalline nature of metal complexes. A modified electrode [Co(NBA)2(H2O)2]/GCE was prepared by using the synthesized Co(II) complex to assess electrocatalytic properties by cyclic voltammetry (CV) studies. The [Co(NBA)2(H2O)2]/GCE found to have excellent electrocatalytic activity with 4.599 µM/L limit of detection (LOD) with a linear range of 10–60 µM/L and R2 = 0.9982 confirming the surface diffusion control of the electrochemical process. The [Co(NBA)2(H2O)2]/GCE found efficient in detection of ascorbic acid in different concentrations. Furthermore, the synthesized compounds evaluated for antidiabetic activities exhibiting promising results. The catalytic efficiency of the synthesized metal complexes was assessed through the photodegradation of Methyl Red dye under visible light. The Photocatalytic efficiency of Co(II) and Ni(II) complexes reported to degrade methyl red by 71.58 and 72.13% respectively.