The inhibition of mild steel corrosion by papaya and neem extracts

This study examined earlier research on using papaya and neem extracts as inhibitors to minimize the corrosion of mild steel in a variety of corrosive situations. The potential inhibitory characteristics of plant extracts to potentially replace the hitherto used, well-known inhibitors that are harmf...

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Main Authors: Paulinus Chukwudi Agu, Kooffreh Okon
Format: Article
Language:English
Published: Engineering Society for Corrosion, Belgrade 2023-09-01
Series:Zaštita Materijala
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Online Access:https://www.zastita-materijala.org/index.php/home/article/view/87
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author Paulinus Chukwudi Agu
Kooffreh Okon
author_facet Paulinus Chukwudi Agu
Kooffreh Okon
author_sort Paulinus Chukwudi Agu
collection DOAJ
description This study examined earlier research on using papaya and neem extracts as inhibitors to minimize the corrosion of mild steel in a variety of corrosive situations. The potential inhibitory characteristics of plant extracts to potentially replace the hitherto used, well-known inhibitors that are harmful to the people handling them as well as the environment, inspired several scholars to conduct corrosion inhibition tests on metals using plant extracts. The findings of earlier research demonstrated that the maximal inhibitory efficiency provided by neem leaf extract to prevent the degradation of carbon steel in a hydrochloric acid (1 M) medium was 97%, while 86% was observed for the protection in H2SO4 (1 M) solution. The extract from Carica papaya leaves was shown to have up to 83% maximum inhibitory efficacy for preventing mild steel corrosion in HCl (1 M). It has been revealed that when extract concentration increased, the rate of steel corrosion reduced. Additionally, papaya leaves' corrosion-inhibiting mechanism was said to occur mostly in the cathodic area. Both plant-leaf extracts (Papaya and Neem) have been reported to have adsorption qualities that, for the most part, agreed with the Langmuir adsorption isotherm model.
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spelling doaj-art-42822e40c57f47cbb26a2212412da27e2025-08-20T02:37:57ZengEngineering Society for Corrosion, BelgradeZaštita Materijala0351-94652466-25852023-09-0164327428210.5937/zasmat2303274N86The inhibition of mild steel corrosion by papaya and neem extractsPaulinus Chukwudi Agu0Kooffreh Okon1Federal University of Technology, Department of Materials and Metallurgical Engineering, Owerri, Imo State, NigeriaFederal University of Technology, Department of Materials and Metallurgical Engineering, Owerri, Imo State, Nigeria + Federal University of Technology, African Centre of Excellence in Future Energies and Electrochemical Systems, Owerri (ACE-FUELS, FUTO), Imo State, NigeriaThis study examined earlier research on using papaya and neem extracts as inhibitors to minimize the corrosion of mild steel in a variety of corrosive situations. The potential inhibitory characteristics of plant extracts to potentially replace the hitherto used, well-known inhibitors that are harmful to the people handling them as well as the environment, inspired several scholars to conduct corrosion inhibition tests on metals using plant extracts. The findings of earlier research demonstrated that the maximal inhibitory efficiency provided by neem leaf extract to prevent the degradation of carbon steel in a hydrochloric acid (1 M) medium was 97%, while 86% was observed for the protection in H2SO4 (1 M) solution. The extract from Carica papaya leaves was shown to have up to 83% maximum inhibitory efficacy for preventing mild steel corrosion in HCl (1 M). It has been revealed that when extract concentration increased, the rate of steel corrosion reduced. Additionally, papaya leaves' corrosion-inhibiting mechanism was said to occur mostly in the cathodic area. Both plant-leaf extracts (Papaya and Neem) have been reported to have adsorption qualities that, for the most part, agreed with the Langmuir adsorption isotherm model.https://www.zastita-materijala.org/index.php/home/article/view/87corrosion inhibitionpapayaneemplant extractsmild steel
spellingShingle Paulinus Chukwudi Agu
Kooffreh Okon
The inhibition of mild steel corrosion by papaya and neem extracts
Zaštita Materijala
corrosion inhibition
papaya
neem
plant extracts
mild steel
title The inhibition of mild steel corrosion by papaya and neem extracts
title_full The inhibition of mild steel corrosion by papaya and neem extracts
title_fullStr The inhibition of mild steel corrosion by papaya and neem extracts
title_full_unstemmed The inhibition of mild steel corrosion by papaya and neem extracts
title_short The inhibition of mild steel corrosion by papaya and neem extracts
title_sort inhibition of mild steel corrosion by papaya and neem extracts
topic corrosion inhibition
papaya
neem
plant extracts
mild steel
url https://www.zastita-materijala.org/index.php/home/article/view/87
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