Corrosion inhibition of copper in NaCl solution by water extract of mint leaves

Abstract

Metal corrosion is a significant issue for any nation's economy and population. The researchers have attempted to reduce corrosion damage losses with both synthetic and green inhibitors. Since green corrosion inhibitors (GCI) are innocuous, effective in corrosion prevention, environment-friendly, and reasonably priced, they have become a favorite solution to the corrosion problem. In this study, the mitigation of copper (Cu) corrosion in 0.5 M NaCl by the water extract of mint leaves (AEML) is investigated through electrochemical measurements and surface images. The functional activity of AEML is checked with the UV–visible (US) and Fourier transform infrared spectroscopy (FS) techniques. According to the findings of electrochemical measurements, AEML efficacy is found to increase with its concentration. The maximum inhibitory efficacy of 70 % (TC) is achieved with 300 mg/L of AEML. Also, the images captured by optical microscopy (OM) confirm that the extract efficiently prevents copper in 0.5 M NaCl. Based on the overall findings of this study, it can be concluded that AEML has good inhibitory efficiency and is suitable for inhibition applications.