816474.fig.001a
(a)
816474.fig.001b
(b)
816474.fig.001c
(c)
Figure 1: SEM images of the obtained catalysts after the calcinations process. Images of the pristine TiO2 nanofibers (a), images of the TiO2 nanofibers containing Ni NPs (b), and TiO2 microparticles containing Ni NPs (c).