Structure directing influence of precursor compositions on the formation of macroscopic inorganic oxide nanocomposite fibers

Abstract

A series of highly disperse hollow and solid SiO₂ containing nanocomposite fibers with lengths on the centimetre scale was successfully constructed through a templating technique combined with a solvothermal process. The hydrated metal salt not only acted as the precursor of the secondary functional component but also resulted in an intriguing influence on the morphology of the final composite fibers. We can obtain hollow or solid composite fibers by altering the precursor compositions, without changing the template. The as-synthesized nanocomposite fibers possessed a large amount of mesopores, facilitating molecular transport through the interior space. In addition, the macroscopic products are in the form of textile with certain strength and flexibility, allowing easy handling in applications. The selected property characterization demonstrated the potential applications of these functional composites.