Figure 6

(a) XPS survey spectra of (i) Fe2O3-1 and (ii) Fe2O3-2. Deconvoluted XPS spectra of (b) Fe 2p and (c) O 1s of (i) Fe2O3-1 and (ii) Fe2O3-2.

(a) XPS survey spectra of (i) Fe2O3-1 and (ii) Fe2O3-2. Deconvoluted XPS spectra of (b) Fe 2p and (c) O 1s of (i) Fe2O3-1 and (ii) Fe2O3-2.