Industrial carboxyl single-walled carbon nanotubes are widely used in various advanced applications due to their unique properties. They are often employed in the development of high-performance composites, enhancing the mechanical strength, electrical conductivity, and thermal stability of materials. These nanotubes are also utilized in energy storage devices, such as supercapacitors and batteries, where they improve charge transfer and storage capacity. In the field of electronics, they serve as key components in transistors, sensors, and flexible displays due to their excellent electrical properties. Additionally, their functionalized carboxyl groups make them suitable for biomedical applications, including drug delivery systems and biosensors, where they can be tailored for targeted interactions. Environmental applications include their use in water purification systems, where they effectively adsorb pollutants and heavy metals. Overall, their versatility and enhanced functionality make them a valuable material in cutting-edge technologies.