Carbon nanotubes, particularly multi-walled variants, are extensively used in various industries due to their exceptional mechanical, electrical, and thermal properties. In electronics, they are employed to create conductive films, transistors, and sensors, enhancing device performance and miniaturization. Their high strength and lightweight nature make them ideal for reinforcing composite materials in aerospace, automotive, and construction sectors, improving durability and reducing weight. In energy storage, multi-walled carbon nanotubes are utilized in batteries and supercapacitors to increase energy density and charge-discharge efficiency. They also play a significant role in environmental applications, such as water filtration and gas adsorption, due to their high surface area and adsorption capacity. Additionally, they are used in biomedical fields for drug delivery systems, tissue engineering, and imaging, leveraging their biocompatibility and unique structural properties.