Evaluation of Morinda citrifolia extract as sustainable inhibitor for mild steel in saline environment

IF 0.9 4区 工程技术 Q3 ENGINEERING, MULTIDISCIPLINARY
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Abstract

In this study, the Morinda citrifolia extract was evaluated as a sustainable inhibitor of mild steel in saline environments. The work aimed to determine the inhibition efficiency of new active material for metal corrosion inhibition. The powdered simplicia of M. citrifolia was extracted in the macerator for three days using a solvent daily. The functional group bonds of this extract were analyzed by Fourier Transform Infrared (FT-IR). The performance of M. citrifolia extracts was evaluated with potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) techniques using a three-electrode cell system. The surface morphology of mild steel was pictured by Field effect scanning electron microscopy (FE-SEM) coupled with energy dispersive X-ray spectroscopy (EDX). Potentiodynamic polarization results show decreasing corrosion current (Icorr) with the presence of an extract of M. citrifolia. Furthermore, resistance capacity transfer (Rct) increases with the addition of M. citrifolia extract. The optimum inhibition efficiency (%IE) was achieved at 300 mg L−1 concentrations with 85.10% efficiency by using the PDP technique. The mild steel morphology in the addition of M. citrifolia extracts is smoother than the surface without adding extracts. The increase in corrosion inhibition was associated with the molecule adsorption from the active compounds into the steel surface. The study results confirmed that M. citrifolia is a potential biomaterial engineering for corrosion inhibitors on mild steel in a saline environment.
评估海巴戟提取物作为盐碱环境中低碳钢可持续抑制剂的作用
本研究评估了海巴戟提取物作为低碳钢在盐碱环境中的可持续缓蚀剂的效果。这项工作旨在确定新的金属缓蚀活性材料的缓蚀效率。每天使用一种溶剂在浸渍器中浸渍 M. citrifolia 的粉末萃取物三天。傅里叶变换红外光谱(FT-IR)分析了提取物的官能团键。使用三电极电池系统,通过电位极化(PDP)和电化学阻抗光谱(EIS)技术对柠檬叶提取物的性能进行了评估。场效应扫描电子显微镜(FE-SEM)结合能量色散 X 射线光谱(EDX)对低碳钢的表面形态进行了描绘。电位极化结果显示,随着柠檬叶提取物的存在,腐蚀电流(Icorr)不断减小。此外,电阻容量转移(Rct)随着离心叶提取物的添加而增加。通过使用 PDP 技术,当浓度为 300 mg L-1 时,最佳抑制效率(%IE)为 85.10%。添加了柠檬叶提取物的低碳钢表面形态比未添加提取物的表面更光滑。缓蚀效果的提高与活性化合物分子吸附到钢表面有关。研究结果证实,枸橼叶是一种潜在的生物材料工程,可用于盐碱环境中低碳钢的缓蚀剂。
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来源期刊
Journal of Engineering Research
Journal of Engineering Research ENGINEERING, MULTIDISCIPLINARY-
CiteScore
1.60
自引率
10.00%
发文量
181
审稿时长
20 weeks
期刊介绍: Journal of Engineering Research (JER) is a international, peer reviewed journal which publishes full length original research papers, reviews, case studies related to all areas of Engineering such as: Civil, Mechanical, Industrial, Electrical, Computer, Chemical, Petroleum, Aerospace, Architectural, Biomedical, Coastal, Environmental, Marine & Ocean, Metallurgical & Materials, software, Surveying, Systems and Manufacturing Engineering. In particular, JER focuses on innovative approaches and methods that contribute to solving the environmental and manufacturing problems, which exist primarily in the Arabian Gulf region and the Middle East countries. Kuwait University used to publish the Journal "Kuwait Journal of Science and Engineering" (ISSN: 1024-8684), which included Science and Engineering articles since 1974. In 2011 the decision was taken to split KJSE into two independent Journals - "Journal of Engineering Research "(JER) and "Kuwait Journal of Science" (KJS).
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