[21p-N302-1~10] 6.3 Oxide electronics

[21p-N302-1] Gas phase photocatalytic H₂ production over hematite nanotube arrays/Cu₂O composite under visible light irradiation

〇(D)Hikaru Masegi¹, Shivaji B. Sadale², Kei Noda¹ (1.Keio Univ., 2.Shivaji Univ.)

Keywords:semiconductor photocatalyst, pn heterojunction, nanostructure

Hydrogen has drawn attention as a next generation clean energy source. We focused on n-type hematite (a-Fe₂O₃) and p-type cuprous oxide (Cu₂O) as semiconductor photocatalyst which can absorb visible light, and cuprous oxide nanoparticles (CNP) were deposited on hematite nanotube arrays (FNT) by pulse electrodeposition. Owing to pn heterojunction, gas phase photocatalytic hydrogen generation over FNT/CNP under visible light was confirmed.