Table 2: The effect of different solvents on morphologies, sizes and structures of TiO2 nanostructures.

SampleComposition, %Morphology Size, nm Band gap, eV FWHMs, °Titanate crystallite size, nm

W100Titanate (100)Nanotube 6-7 3.20 0.65112.3
A100Titanate (100)Nanowire, nanoparticle 50 (nanoparticle) 3.36 0.78410.2
AMEK200Titanate (100)Nanotube, nanowire, and nanoparticle6-7 (nanotube) 3.450.51515.6
MEK100Titanate (100)Nanotube6-73.210.8629.3
MEK200Titanate (100)3.220.78710.2
MEK300Titanate (100)3.200.76410.5
MEK400Titanate (100)3.220.74610.8
MEK500Titanate (63.9), anatase (19.1), and rutile (17)3.290.28128.6
TiO2 precursorAnatase (81), rutile (19)Nanoparticle253.25