International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 01 | Jan 2024
p-ISSN: 2395-0072
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Eco-Friendly Approaches to Corrosion Inhibition: A Comprehensive Review of Recent Developments in Plant-Based Inhibitors Keshava Kishora K1, B.M. Praveen1,*, Bharath K. Devendra2 1 Department of Chemistry, Srinivas University, Institute of Engineering & Technology, Mukka,
Srinivas Nagar, Mangaluru, Karnataka, India.
2 Department of Chemistry, M.S. Ramaiah College of Arts, Science and Commerce, MSR Nagar, MSRIT Post,
Bengaluru, Karnataka, India ------------------------------------------------------------------------***------------------------------------------------------------------------Abstract: Corrosion of metals and alloys poses significant challenges in industrial applications, leading to the deterioration of infrastructure and equipment. Conventional methods to mitigate this process have primarily relied on synthetic corrosion inhibitors, which, while effective, often introduce environmental and health hazards. Recent shifts in global priorities towards sustainability and environmental conservation have catalyzed the exploration of eco-friendly alternatives. This comprehensive review synthesizes findings from three pivotal studies, presenting an in-depth analysis of the advancements in plant-based corrosion inhibitors as viable and sustainable alternatives to their synthetic counterparts. This review emphasizes the importance of interdisciplinary approaches, combining insights from chemistry, materials science, and environmental science, to develop effective, sustainable, and eco-friendly corrosion inhibitors. By providing a comprehensive overview of recent advancements and highlighting areas for future research, this review aims to serve as a catalyst for further innovation in the field of corrosion inhibition. Here we have provided different type of corrosion inhibitors, Measurement techniques, research gap, and objectives, future techniques were discussed. Keywords: Corrosion inhibition, Mild steel, Synthetic inhibitors, Environmental impact, Green chemistry.
1. Introduction: Corrosion, a naturally occurring phenomenon, results in the gradual destruction of materials, particularly metals and alloys, through chemical or electrochemical reactions with the environment [1-5]. It presents a significant challenge across various industries, leading to substantial economic losses, safety hazards, and environmental issues [6-11]. Traditionally, corrosion inhibition has been achieved through the use of various synthetic chemicals. However, the environmental and health hazards associated with these synthetic inhibitors have led to an increasing demand for green and sustainable alternatives [12-15]. This review paper synthesizes insights from three recent studies to provide a comprehensive understanding of the advancements in plant-based corrosion inhibitors as eco-friendly alternatives to traditional methods [16-20]. The detrimental impact of synthetic corrosion inhibitors on the environment and human health cannot be overstated [2124]. These compounds, while effective in mitigating corrosion, often contain toxic heavy metals and organic compounds that pose significant risks upon release into the environment [25-28]. The adverse effects range from soil and water contamination to detrimental impacts on aquatic life and human health [29-33]. Consequently, there's a growing imperative within the scientific community and industry to develop corrosion inhibitors that are not only effective but also environmentally benign and sustainable [34. The shift toward green corrosion inhibitors is not merely a response to environmental concerns but also aligns with the broader paradigm of green chemistry and sustainability. Plant-based inhibitors, in particular, have garnered significant attention due to their wide availability, low cost, and minimal environmental footprint [35-37]. These natural inhibitors often contain a variety of organic compounds, including tannins, alkaloids, and flavonoids, which have shown promising inhibitory effects against corrosion. The first study under review offers a detailed exploration of the types and mechanisms of both synthetic and natural organic corrosion inhibitors, providing a foundational understanding of how these substances interact with metal surfaces to prevent corrosion [38-40]. This review paper builds upon the insights from these studies to present a cohesive understanding of the current landscape of green corrosion inhibitors. It aims to highlight the potential of plant-based inhibitors in replacing traditional synthetic chemicals, address the challenges and limitations in their application, and identify future directions for research
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