P215
Photocatalytic Decomposition of Water on Layered Perovskite Type Oxides
Tsuyosi Takata,
Michikazu Hara,
Junko N. Kondo,
Kazunari Domen
Research Laboratory of Resources Utilization, Tokyo Institute of Technology
Tsuyosi Takata, Michikazu Hara, Junko N. Kondo, Kazunari Domen
abstract: We have studied the application of some ion-exchangeable layered materials to photocatalytic decomposition of water. Among them, it was found that a series of ion-exchangeable layered perovskite type oxides, A2-xLa2Ti3-xNbxO10 (A = K, Rb, Cs; x = 0, 0.5, 1.0), are highly efficient photocatalysts for overall water splitting when a proper amount of nickel was loaded. These materials show spontaneous hydration of interlayer space and decomposed intercalated H2O molecules into H2 and O2 under the band gap irradiation.
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