Structural characterization and morphology of electrospun TiO2 nanofibers

Properties of Electrospun TiO2Nanofibers

“…However, the predominant phase is still anatase. With increasing temperature the rutile phase grows so that at 800 ∘ C it becomes the one that has a higher percentage in the samples, as expected [12,15,18]. With increasing temperature the grain size also increases; this increase in the grain size is due to the sudden increase of temperature.…”

“…Changes in morphology before and after calcination are related with drastic change in the crystal structure [15][16][17]. One can also see that after annealing there is a reduction in the size of nanofibers, due to the PVP polymer evaporation and the TiO 2 crystallization [15].…”

“…One can also see that after annealing there is a reduction in the size of nanofibers, due to the PVP polymer evaporation and the TiO 2 crystallization [15].…”

Morphology Control of Single Crystalline Rutile TiO2Nanowires

“…Titanium dioxide (TiO 2 ) nano-structures such as nanotubes, 1 nanowires, 2 nanowhiskers, 3 nanorods, 4 nanobelts, 5 and nanofibers 6 have been recently studied by many researchers because of its wide range of applications in gas sensors, 7 photocatalysis, 8,9 dye-sensitization for solar cells, 10,11 and solar water splitting for hydrogen production.…”

Photocatalyst Nanofibers Obtained by Calcination of Organic-Inorganic Hybrids

“…Furthermore, TTIP is very easily hydrolyzed, and thus a water-free condition is required for the use of TTIP on ES. Another groups also formed TiO 2 nanofibers by calcination of TiO 2 -PVP and TiO 2 -poly(vinyl acetate) precursors which were formed by ES using organic solvents such as ethanol and dimethylformamide (Kim et al, 2006, Nuansing et al, 2006, Kumar et al, 2007, Ding et al, 2008. Li and Xia reported the formation of TiO 2 hollow-nanofibers (nanotubes) by ES of two immiscible liquids (TTIP-PVP ethanol solution and heavy mineral oil) through a coaxial, two-capillary spinneret, followed by selective removal of the cores and calcination in air (Li & Xia, 2004).…”