Department of Pure and Applied Chemistry, University of Nigeria, Nsukka 410001, Nigeria.
Department of Chemistry, Akwa Ibom State University, Ikot Akpaden 520221, Nigeria.
Molecules. 2022 May 6;27(9):2991. doi: 10.3390/molecules27092991.
The corrosion of metals, i.e., the initiation and acceleration of the surface deterioration of metals through an electrochemical reaction with the surrounding intrusive environment, is a global concern because of the economic and environmental impacts. Corrosion inhibitors are considered the most practical choice among the available corrosion protection techniques due to their effectiveness in terms of functionality and cost. The use of traditional and toxic corrosion inhibitors has led to environmental issues, arousing the need for green counterparts that are environmentally friendly, easily accessible, biodegradable, and cost-effective. In this review, the utilization of green corrosion inhibitors purely acquired from renewable sources is explored, with an in-depth focus on the recent advancements in the use of fruit and vegetable extracts as green corrosion inhibitors. In particular, fruits and vegetables are natural sources of various phytochemicals that exhibit key potential in corrosion inhibition. To shed light on the true potential of such extracts in the protection of steel in acidic environments, the experimental techniques involved in corrosion inhibition and the mechanism of corrosion inhibition are discussed in detail. The study highlights the potential of fruit and vegetable extracts as non-toxic, economical, and effective corrosion inhibitors in the pursuit of green chemistry. In addition to discussing and outlining the current status and opportunities for employing fruit and vegetable extracts as corrosion inhibitors, the current review outlines the challenges involved in the utilization of such extracts in corrosion inhibition.
金属的腐蚀，即金属通过与周围侵入性环境的电化学反应而引发和加速表面恶化，是一个全球性的关注问题，因为它会对经济和环境造成影响。由于在功能和成本方面的有效性，腐蚀抑制剂被认为是可用的腐蚀防护技术中最实用的选择。传统和有毒腐蚀抑制剂的使用导致了环境问题，因此需要绿色替代品，这些替代品应具有环保、易于获取、可生物降解和具有成本效益的特点。在这篇综述中，探索了纯粹从可再生资源中获得的绿色腐蚀抑制剂的利用，深入关注了水果和蔬菜提取物作为绿色腐蚀抑制剂的最新进展。具体来说，水果和蔬菜是各种植物化学物质的天然来源，这些物质在腐蚀抑制方面具有关键潜力。为了阐明此类提取物在保护钢在酸性环境中的真正潜力，详细讨论了腐蚀抑制中涉及的实验技术和腐蚀抑制机制。该研究强调了水果和蔬菜提取物作为无毒、经济且有效的腐蚀抑制剂在追求绿色化学方面的潜力。除了讨论和概述将水果和蔬菜提取物作为腐蚀抑制剂的现状和机会外，本综述还概述了在腐蚀抑制中利用此类提取物所涉及的挑战。
