title: A Z-scheme photocatalyst constructed with an yttrium-tantalum oxynitride and a binuclear Ru(ii) complex for visible-light CO2 reduction.
abstract: An yttrium-tantalum oxynitride having a band gap of 2.1 eV (absorbing visible light at <580 nm) was applicable as a semiconductor component of a Z-scheme CO2 reduction system operable under visible light, in combination with a binuclear Ru(ii) complex that has strong absorption in the visible region (<600 nm). Excitation of this system with visible light under a CO2 atmosphere induced photocatalytic formation of formic acid with very high selectivity (>99%).
authors.affiliation: Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-NE-2 Ookayama, Meguro-ku, Tokyo 152-8550, Japan. ishitani@chem.titech.ac.jp maedak@chem.titech.ac.jp.
authors.forename: Kanemichi
authors.initials: K
authors.lastname: Muraoka
authors.affiliation: Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-NE-2 Ookayama, Meguro-ku, Tokyo 152-8550, Japan. ishitani@chem.titech.ac.jp maedak@chem.titech.ac.jp.
authors.forename: Hiromu
authors.initials: H
authors.lastname: Kumagai
authors.affiliation: Electronic Functional Materials Group, Polymer Materials Unit, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
authors.forename: Miharu
authors.initials: M
authors.lastname: Eguchi
authors.affiliation: Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-NE-2 Ookayama, Meguro-ku, Tokyo 152-8550, Japan. ishitani@chem.titech.ac.jp maedak@chem.titech.ac.jp.
authors.forename: Osamu
authors.initials: O
authors.lastname: Ishitani
authors.affiliation: Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-NE-2 Ookayama, Meguro-ku, Tokyo 152-8550, Japan. ishitani@chem.titech.ac.jp maedak@chem.titech.ac.jp.
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Maeda