Research Article

New Porphyrin/Fe-Loaded TiO2 Composites as Heterogeneous Photo-Fenton Catalysts for the Efficient Degradation of 4-Nitrophenol

Figure 3

SEM micrographs of (a) BareTiO2, (b) Fe-TiO2, and (c) CuPp-Fe-TiO2.
376078.fig.003a
(a)
376078.fig.003b
(b)
376078.fig.003c
(c)