Plant Wastes as Green, Renewable and Sustainable Corrosion Inhibitors

Corrosion of metals and alloys is a significant issue in many industries, leading to significant economic losses and environmental concerns. Traditional corrosion inhibitors are generally expensive and involve toxic chemicals that pose a threat to human health and the environment. In recent years, there has been a growing interest in finding abundant, readily available, low-cost, eco-friendly, and sustainable alternatives to these inhibitors. Plant wastes, rich in bioactive compounds, can offer a sustainable and cost-effective solution for mitigating corrosion while minimizing environmental impact. This chapter discusses the potential of utilizing plant wastes as corrosion inhibitors to reduce waste in the environment and the harmful effects of corrosion and contribute to the circular economy. In the chapter, the importance of sustainable corrosion mitigation, the need for new green corrosion inhibitors, the potential of plant wastes as corrosion inhibitors, the types of plant wastes, their components, extraction methods, and their effectiveness as corrosion inhibitors were discussed. Recent developments; their environmental, health, and economic benefits; challenges and limitations; sustainability; and future prospects of utilizing plant wastes as potential corrosion inhibitors were also presented. Overall, by harnessing the potential of plant residues, we can contribute to a circular economy, reduce harmful waste released into the environment, and establish a sustainable, healthier and greener corrosion mitigation process.