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SIIA Público
SISTEMA INTEGRAL DE INFORMACIÓN ACADÉMICA - PÚBLICO
Título del libro: Ccus Capacity Building And Technology Adoption In Mexico Título del capítulo: Fabrication and characterization of TiO2/ZnO nanofibers from PVAc electrospun microfiber for renewable energy application
Autores UNAM: RICARDO VERA GRAZIANO;
Autores externos: Idioma: InglésAño de publicación: 2017Palabras clave:
Calcination; Electrospinning; Fourier transform infrared spectroscopy; Oxides; Scanning electron microscopy; Spinning (fibers); Titanium; Titanium dioxide; Titanium oxides; X ray diffraction; Zinc; Zinc oxide; Crystalline structure; Electrically conductive; Electrospinning techniques; Fabrication and characterizations; Porous membranes; Renewable energy applications; Structure and morphology; Titanium Isopropoxide; Nanofibers
Resumen:
We report the study of titanium dioxide/zinc oxide nanofibers obtained from the calcination of precursor poly (vinyl acetate) fibers with titanium isopropoxide and zinc nanopowder, which were prepared by the electrospinning technique. The structure and morphology of nanofibers and precursor fibers were studied by Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD) and FESEM-EDS. The FTIR and XRD analyzes confirmed the formation of crystalline structures of titanium (anatase) and zinc oxides (hexagonal wurzite), after the calcination of the nanofibers at 500 °C. SEM micrographs show that both precursor fibers and nanofibers form random porous membranes, that TiCVZnO nanofibers and precursor microfibers have average diameters in the range of 200 to 225 nm. The TiCVZnO nanofibers are electrically conductive. These characteristics suggest that titanium dioxide/zinc oxide nanofibers would have potential application for the manufacture of solar cells.
