title: Study on the Effect of Pt Intercalation into Layered Niobate Perovskite for Photocatalytic Behavior.
abstract: A novel photocatalyst consisting of an intercalated perovskite H(1-2x)Pt(x)LaNb2O7 was fabricated by ion exchange. Synchrotron X-ray diffraction and X-ray photoelectron spectroscopy results confirmed that Pt(2+) exists within the interlayer space of the layered perovskite. H(1-2x)Pt(x)LaNb2O7 composed of layered niobate perovskite and intercalated Pt(2+) completely degraded a 20 ppm phenol solution in 3 h under irradiation by Xe light, which exhibits photocatalytic activity superior to those of RbLaNb2O7, Pt-deposited RbLaNb2O7, and HLaNb2O7. From first-principles density functional theory simulation, high photocatalytic activity of H(1-2x)Pt(x)LaNb2O7 is attributed to the emergence of a new O 2p-Pt 5d hybridized band on top of the valence band.
authors.affiliation: †Center for Crystal Science and Technology, University of Yamanashi, 7-32 Miyamae, Kofu, Yamanashi 400-8511, Japan.
authors.forename: Nan
authors.initials: N
authors.lastname: Xu
authors.affiliation: †Center for Crystal Science and Technology, University of Yamanashi, 7-32 Miyamae, Kofu, Yamanashi 400-8511, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Takei
authors.affiliation: ‡Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Miura
authors.affiliation: †Center for Crystal Science and Technology, University of Yamanashi, 7-32 Miyamae, Kofu, Yamanashi 400-8511, Japan.
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Kumada
authors.affiliation: §Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama, Kanagawa 226-8503, Japan.
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Katsumata
authors.affiliation: §Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama, Kanagawa 226-8503, Japan.
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Matsushita
authors.affiliation: §Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama, Kanagawa 226-8503, Japan.
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Okada