Parthenium hysterophorus Plant Extract as an Efficient Green Corrosion Inhibitor for Mild Steel in Acidic Environment
Gopal JiSchool of Materials Science and Technology, Institute of Technology, Banaras Hindu University, Varanasi 221 005, IndiaSudhish Kumar ShuklaDepartment of Chemistry, School of Mathematical and Physical Sciences, North West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South AfricaPriyanka DwivediCentre of Biotechnology, Allahabad University, Allahabad 211002, IndiaShanthi SundaramCentre of Biotechnology, Allahabad University, Allahabad 211002, IndiaEno E. EbensoDepartment of Chemistry, School of Mathematical and Physical Sciences, North West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South AfricaRajiv PrakashSchool of Materials Science and Technology, Institute of Technology, Banaras Hindu University, Varanasi 221 005, India
2012en
ABI
Annotatsiya
Asteraceae family - Parthenium hysterophorus plant leaves extract is reported as corrosion inhibitor of mild steel in HCl. Weight loss measurements, Tafel polarization and electrochemical impedance spectroscopy techniques are employed to analyze the effect on steel corrosion. A significant decrease in corrosion rate is observed using water extract of Parthenium hysterophorus plant as inhibitor. The maximum potential of the extract was obtained at 1100 mg L-1 with 84% efficiency. It was found that adsorption of Parthenium hysterophorus extract follows Langmuir isotherm model. Mechanism of corrosion inhibition is explored with the help of UV-vis spectra and SEM images.
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