X-Ray Photoelectron Spectroscopy Characterization of Fe Doped TiO2 Photocatalyst

X-ray photoelectron spectroscopy a technique was used in order to characterize, ionic state of Fe and chemical composition of Fe doped TiO 2 .XPS detected Iron in form of Fe 2+ and Fe 3+ .Surface atomic concentrations were measured.Light exposed and reference samples were compared.Light irradiation affected charge transfer on the surface of Iron doped TiO 2 .After light exposing XPS measurements showed that Ti 4+ peak intensity decreased and shifted positively, O1s spectrum showed presence of increased amount of OH radicals, valence band spectra intensity increased.

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