Carbon nanotubes, particularly multi-walled ones, are widely used in various industries due to their exceptional strength, conductivity, and thermal properties. In electronics, they are employed to create conductive films, transistors, and sensors, enhancing device performance and miniaturization. Their high mechanical strength makes them ideal for reinforcing composites in aerospace, automotive, and construction materials, improving durability and reducing weight. In energy storage, they are utilized in batteries and supercapacitors to increase energy density and charge-discharge efficiency. Additionally, their large surface area and chemical stability make them suitable for use in filtration systems, catalysis, and environmental remediation, where they can effectively capture pollutants or facilitate chemical reactions. In biomedical applications, they are explored for drug delivery systems, tissue engineering, and biosensors due to their unique interaction with biological molecules.