Photocatalytic Performance of TiO₂ Nanofibers as a Function of Fiber Diameter Using TiCl₂ as a Precursor

Figure 2

SEM images and the corresponding measured average fiber diameter of TiO₂ nanofibers synthesized at a fixed 5 cm distance and (a) 2.5 kV, (b) 5 kV, (c) 7.5 kV, and (d) 10 kV potential difference (the white scale bars in all SEM images are 1 μm).