Abstract
One-dimensional (1D) nanofibers have recently attracted a great interest for a wide range of advanced applications due to their unique structural characteristics such as high length/diameter ratio and high surface area. In the present work, a convenient method has been applied to prepare 1D silicon carbide (SiC) nanofibers by using a natural biopolymer, silk cocoon, as an economical precursor. By applying a post heat treatment including the combination of pre-oxidization, cyclization, and single step carbothermal reduction treatment, the coated silk cocoon fibers (fibroins) by tetraethyl orthosilicate (TEOS) sol, can be transformed into 1D SiC nanofibers of 193-295 nm diameter composed of SiC nanoparticles of 20 nm.
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