Figure 1

FE-SEM images of (a) TiO2, (b) TZ-5, (c) TZ-10, and (d) TZ-20 fibrous membranes. The insets are the optical images and magnified images of the corresponding fibrous membranes.

FE-SEM images of (a) TiO2, (b) TZ-5, (c) TZ-10, and (d) TZ-20 fibrous membranes. The insets are the optical images and magnified images of the corresponding fibrous membranes.