Determination of Gomphrena serrata Leaf Extract as Corrosion Inhibitor and Reductant for Synthesis of Copper Nanoparticles

Adapting eco-friendly methodologies is the need of the hour in every field of research. In the present work the potential investigation of Gomphrena serrata leaves was evaluated as a corrosion inhibitor for the mild steel in HCl medium and as a reductant. The corrosive inhibitive activity was found out by identifying the adsorbed layer on the metal surface through electrochemical measurements, SEM and FTIR. From the phytochemical analysis, we found out the G. serrata was enriched with polyphenols which have a very good antioxidant property and it may use as a reducing agent for the synthesis of metal nanoparticles. The G. serrata as an efficient inhibitor it obeys Langmuir adsorption isotherm and served as anodic type inhibitor. The impedance study confirms the formation of thin film on the metal surface through its Cdl and Rct values. The copper nanoparticles and their derivatives have been used as a medicine to prevent infection, leg ulcers etc. G. serrata leaves have good medicinal values, to enhance its medicinal properties it was mediated for the synthesis of copper nanoparticles. The CuNps formation was confirmed by SPR bands at 345 nm by microwave method and at 341 nm by thermostat method. The functional groups present in the G. serrata also present in the FTIR spectra of CuNps and it confirms the G. serrata was used as a reducing as well as a capping agent.