International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

Effect of Watermelon Rind Inhibitor on the Corrosion Behaviour of Mild Steels in Alkaline and Acidic Environments

Abstract

Agro-waste disposal has become a major source of environmental pollution. It is imperative to find an alternate use for agricultural waste. This research used water rind which is an agro-waste to develop an inhibitor. The inhibitors developed were used in different percentages to study the corrosion behaviour of mild steel in 1M HCl, 0.5M H2SO4 and 0.5 M NaOH using weight loss and potentiodynamic methods. The extract was synthesized from the watermelon rind (Citrullus lanatus) using the maceration method. Characterization of the extract was done by Atomic Absorption Spectroscopy, Fourier Transform Infrared Spectroscopy, Phytochemical Screening and Gas Chromatography (mass spectroscopy). The Atomic Absorption Spectroscopy results showed that the plant extract is ecofriendly as it does not contain heavy metals. The Fourier Transform Infrared Spectroscopy showed the different functional groups present in the extracts. Phytochemical screening result showed the presence of the chemical constituents. Gas Chromatography was used to determine the different compositions of the extracts. The weight loss and potentiodynamic polarization results showed that the addition of extracts inhibited the mild steels in all the media. The corrosion rate reduces as the inhibition efficiency increases and the concentration increases.

Country : Nigeria

1 O.A Olaseinde

  1. Department of Metallurgical and Materials Engineering, Federal University of Technology, Akure, Ondo State, Nigeria

IRJIET, Volume 6, Issue 5, May 2022 pp. 112-123

doi.org/10.47001/IRJIET/2022.605014

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