Hydroxy purified multi-walled carbon nanotubes are widely used in the field of materials science for enhancing the mechanical, thermal, and electrical properties of composites. They are incorporated into polymers to create lightweight yet strong materials for use in aerospace, automotive, and construction industries. In electronics, these nanotubes serve as conductive additives in batteries, supercapacitors, and sensors, improving performance and efficiency. Additionally, their functionalized surface makes them suitable for biomedical applications, such as drug delivery systems and tissue engineering scaffolds, due to their biocompatibility and ability to interact with biological molecules. Their high surface area and adsorption capacity also make them effective in environmental applications, including water purification and pollutant removal.