Presentation Information

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[22p-A501-5]Analysis of Surface Electronic State of α-Fe₂O₃Particles in Reactants-dissolved Aqueous Solution using Photoemission Yield Spectroscopy in Air.

〇Mariko Kinoshita¹, Sayaka Yanagida¹, Shoichi Somekawa¹, Syouhan Yanagi¹, Satoshi Kuwahara¹ (1.TIRI)

Keywords:

photoemission spectroscopy,Fe2O3,photocatalyst

Surface electronic state of semiconductor photocatalysts, in particular, the valence band maximum (VBM) is an important factor for photocatalytic oxidation. For the semiconductor photocatalysts in aqueous solution, electric charge of functional groups and adsorbates on the surface of the photocatalysts often affects the VBM of the photocatalysts at the interface with water. However, evaluation of the VBM in solution is not easy. In this study, the surface VBM of α-Fe₂O₃ dispersed in water was measured using a photoemission yield spectroscopy in air (PYSA). The effects of pH and phenols as photocatalytic decomposition reactants on the VBM of α-Fe₂O₃ were investigated.

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Presentation Information

[22p-A501-5]Analysis of Surface Electronic State of α-Fe2O3 Particles in Reactants-dissolved Aqueous Solution using Photoemission Yield Spectroscopy in Air.

Keywords:

[22p-A501-5]Analysis of Surface Electronic State of α-Fe₂O₃Particles in Reactants-dissolved Aqueous Solution using Photoemission Yield Spectroscopy in Air.