Research Article

Synthesis and Characterization of Uniform Spherical Nanoporous TiO2 Aerogel Templated by Cellulose Alcohol-Gel with Enhanced Photocatalytic Activity

Figure 2

SEM images of TiO2 aerogel: (a) internal structure of aspherical TiO2 aerogel-0.1 mL of TBOT, (b) internal structure of aspherical TiO2 aerogel-0.5 mL of TBOT, (c) internal structure of spherical TiO2 aerogel-5.0 mL of TBOT, and (d) external surface structure of spherical TiO2 aerogel.