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Asian Journal of Research in Chemistry
Year : 2020, Volume : 13, Issue : 2
First page : ( 146) Last page : ( 150)
Print ISSN : 0974-4169. Online ISSN : 0974-4150.
Article DOI : 10.5958/0974-4150.2020.00029.2

Instrumental Investigations studies of green Inhibition Potential (Case Study: Zea mays cobs extracts on mild steel in Acidic Medium)

Fredrick Q. Obagboye*, Emmanuel F. Olasehinde, Mayowa Oyewumi, Busayo A. Tomilawo

Federal University of Technology, Akure

*Corresponding Author E-mail: obagboye.19@gmail.com

Online published on 7 April, 2020.


The inhibitive effects of acid extracts of Zea mays cobs on the corrosion of mild steel in 1M H2SO4 solution were investigated using spectrophotometric method for determination of phytochemicals, Infrared Measurement (FT-IR) to determine the compound contained, Atomic absorption spectrometry (AAS) to study dissolution rate and scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX) to study the surface morphology of mild steel before immersion in acid, after immersion without the presence of inhibitor and after immersion in the presence of inhibitor. Result of the research shows positive indication that Zea mays cobs contains phytochemical that can inhibits corrosion caused by the acid. The FT-IR studies revealed the presence of functional groups such as-NH2, ROR, -C=C-, -COOH, -C=O, and-CONH2 in the extract. The SEM-EDX and AAS result confirms that the extract reduced the corrosion rate of mild steel, hence, reduced the dissolution rate of the iron.



Instrumental, Characterization, AAS, SEM-EDX, FT-IR, Zea mays, Mild steel, Corrosion.


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