Journal of Emerging Trends in Engineering and Applied Sciences: Research Areas

Article Title: Jatropha Curcas Leaves Extract as Corrosion Inhibitor for Mild Steel in 1M Hydrochloric Acid
by Olusegun Sunday J., Adeiza Barnabas A, Ikeke Kingsley I. and Bodunrin M.O.

Abstract:
Corrosion is one of the greatest menace combating metallic materials. This research sought to find a way of minimizing it using a plant based inhibitor that is readily available and eco-friendly. The inhibitive effect of the acid extract of jatropha curcas leaves on the corrosion inhibition of mild steel using mass loss method was investigated. The study was carried out at different concentration of the extract and temperature. Inhibition efficiency of 93.69% was obtained and this show that jatropha curcas leaves extract could inhibit mild steel corrosion in acidic medium. The inhibition efficiency of the extract was found to increase as both the concentration of the extract and temperature increased. Langmuir isotherm was best fitted into the results. The activation energy values of the inhibited corrosion reaction of mild steel are lesser than the value obtained for the blank. The adsorption mechanism was found to be chemiosorption. Kinetic and thermodynamic parameters were also evaluated.

Keywords: jatropha curcas, mild steel, corrosion inhibition, activation energy, langmuir isotherm, mass loss.

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