Michikazu Hara, Takeshi Kondo, Mutsuko Komoda, Sigeru Ikeda, Junko N. Kondo, Kazunari Domen, Michikazu Hara, Kiyoaki Shinohara and Akira Tanaka
Photocatalytic decomposition of water into H2 and O2 on Cu2O under visible light irradiation is investigated; the photocatalytic water splitting on Cu2O powder proceeds without any noticeable decrease in the activity for more than 1900 h.