Research Article

Removal of Formaldehyde Using Highly Active Pt/TiO2 Catalysts without Irradiation

Figure 5

XPS spectra of the Pt/TiO2-H2 and Pt/TiO2-air catalyst.
350570.fig.005a
(a) O 1s
350570.fig.005b
(b) Ti 2p
350570.fig.005c
(c) Pt 4f