Well-Dispersed Nanoscale Zero-Valent Iron Supported in Macroporous Silica Foams: Synthesis, Characterization, and Performance in Cr(VI) Removal

Figure 8

XPS spectra of the Cr(VI)-adsorbed Mc-NZVI. (a) is the survey, (b) is Fe 2p, and (c) is Cr 2p spectra of Cr(VI)-adsorbed Mc-NZVI.

(a)

(b)

(c)