[22p-P07-1~15] 6.3 Oxide electronics

[22p-P07-8] Hematite with oxygen defect: enhancement of photocatalytic performance

〇(B)Ryoga Fujita¹, Masanori Sakamoto¹ (1.Niihama KOSEN)

Keywords:photocatalysis, hematite, defect

Hematite (α-Fe₂O₃) is a promising material as a photocatalyst. In order to increase its performance, oxygen vacancy defects (VO) were intentionally introduced by a simple hydrothermal synthesis, and their effects were evaluated on the dye degradation performance. The VO of hematite was investigated by X-ray photoelectron spectroscopy and Energy Dispersive X-ray Spectroscopy. The results showed a good correlation between the amount of VO introduced and the photocatalytic performance, with up to a 12-fold difference.