Abstract
The influence of Cephapirin drug on the corrosion of carbon steel (CS) in 2 M HCl solutions has been examined by mass loss (ML), and electrochemical methods. The results demonstrated that Cephapirin drug acts as good inhibitor for CS corrosion. The inhibition efficiency increased as the concentration of the drug increases. Potentiodynamic polarization (PDP) studies showed that Cephapirin is mixed-type inhibitor. The electrochemical impedance spectra (EIS) studies reveal that the process of inhibition is through charge transfer. The adsorption of the drug on metal surface obeyed Temkin adsorption isotherm. The surface analysis of the CS was investigated using Attenuated total reflectance spectroscopy (ATR-FTIR) and UV–visible reflectance spectroscopy. Surface analysis of CS confirmed the existence of a protective adsorbed film of the drug on the metal surface. The quantum chemical calculations of the drug molecule in aqueous phase were done using density functional theory (DFT) method and discussed to correlate the theoretical and experimental data. The inhibition efficiency of Cephapirin drug obtained by chemical and electrochemical methods was in good correlation with each other.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
