Anti-corrosive and anti-microbial activity of MTMI on CRCA metal

Abstract

The present study was intended to demonstrate the synthesis, and characterization of 1-(3-methoxyphenyl)-N-(4H-1,2,4-triazol-4-yl)methan-imine(MTMI) as an inhibitor for the corrosion on CRCA in 1 M HCl. In addition to this, molecular docking, and biological activity was carried out. MTMI formation was confirmed by FTIR and NMR spectroscopic studies. The corrosion inhibition effect was studied by weight loss, potentiodynamic polarization (PDP) measurements, and electrochemical impedance spectroscopy (EIS) techniques. The conditions for optimum inhibition efficiency were established by varying the concentration of the inhibitor and temperature by weight loss method. Kinetic and thermodynamic parameters were calculated and discussed. Results were fitted into various adsorption isotherm models. The adsorption of MTMI on CRCA was confirmed by scanning electron microscopy (SEM). Adsorption obeyed the Langmuir isotherm model and followed physical adsorption. Increasing inhibitor concentration led to a significant reduction in the corrosion rate of mild steel, with an inhibitor efficiency value above 93%. A molecular docking study showed the binding capacity of the protein endo-polygalacturonase (1HG8) and the activity of polygalacturonase enzyme on MTMI was measured.