Critical Electrospinning Parameters for Synthesis Control of Stabilized Polyacrylonitrile Nanofibers.

Polyacrylonitrile (PAN) fibers are widely used as precursors in the manufacture of high-conducting and mechanically resistant carbon fibers. The modulation of such fibers is carried out through electrospinning. In this work, we show the production and control of the morphology of nanometric-range PAN fibers for their potential use as precursors for high-electrical-conductivity carbon fibers.

Enhanced Photocatalytic Activity of TiO Modified with GaI toward Environmental Application.

Gallium (Ga) ion-doped TiO (Ga-TiO) nanocomposite with small particle size (9-10 nm) and high surface area (104 m/g) has been easily synthesized via sol-gel method at low temperature by using low-valent GaI as a doping precursor. The structural and morphological characterization of Ga-TiO was carried out with standard analytical and spectroscopic techniques. Ga doping into the TiO matrix inhibited a phase transformation from anatase to rutile (photocatalytically inactive) form, even at a higher temperature of 750 °C.