One dimensional (1-D) nanofibers can play a vital role in the fields of filtration, opto-electronic, sensor, solar cell, catalysis etc. Here, we demonstrate a novel Gas Jet Fiber (GJF) spinning process for fabrication of polymeric and ceramic nanofibers with controlled morphologies and size. The current technique can produce fibers with higher production rate, at least 30 times higher for the same fiber diameter compared to single jet electrospinning. For example, titanium dioxide (TiO2) nanofibers of diameter ca. 50-300 nm are fabricated by calcining at 500-700 °C in air. The nanofibers are obtained from spinning solutions of polyvinylpyrrolidone (PVP) and titanium isopropoxide (TTIP). The morphology and chemical structure of the precursor polymer and calcined fibers are characterized by scanning electron microscopy (SEM), thermo gravimetric analysis (TGA), transmission electron microscopy (TEM), and X-ray diffraction (XRD). Furthermore, GJF-spun core-shell and side-by-side morphologies of polymer nanofibers such as polyvinyl acetate (PVAc)-polyethylene oxide (PEO) and PVP-PEO are also demonstrated.
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