Carbon nanotubes, particularly double-walled ones, are highly valued for their unique mechanical, electrical, and thermal properties. They are extensively used in electronics for creating conductive films, transistors, and sensors due to their excellent conductivity and strength. In materials science, they enhance the durability and performance of composites, making them ideal for aerospace, automotive, and sporting goods industries. Their high surface area and porosity also make them suitable for energy storage applications, such as in supercapacitors and batteries. Additionally, they are employed in biomedical fields for drug delivery systems and imaging contrast agents, leveraging their ability to penetrate cells and tissues efficiently. Environmental applications include water filtration and pollutant removal, where their adsorption capabilities are utilized to capture contaminants.