title: A Long-Lived Mononuclear Cyclopentadienyl Ruthenium Complex Grafted onto Anatase TiO2 for Efficient CO2 Photoreduction.
abstract: This work shows a novel artificial donor-catalyst-acceptor triad photosystem based on a mononuclear C5 H5 -RuH complex oxo-bridged TiO2 hybrid for efficient CO2 photoreduction. An impressive quantum efficiency of 0.56 % for CH4 under visible-light irradiation was achieved over the triad photocatalyst, in which TiO2 and C5 H5 -RuH serve as the electron collector and CO2 -reduction site and the photon-harvester and water-oxidation site, respectively. The fast electron injection from the excited Ru(2+) cation to TiO2 in ca. 0.5 ps and the slow backward charge recombination in half-life of ca. 9.8 μs result in a long-lived D(+) -C-A(-) charge-separated state responsible for the solar-fuel production.
authors.affiliation: State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, P.R. China.
authors.forename: Haowei
authors.initials: H
authors.lastname: Huang
authors.affiliation: State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, P.R. China.
authors.forename: Jinjin
authors.initials: J
authors.lastname: Lin
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics and CAS Key Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Science, No. 8, 3rd South Street, Zhongguancun, Haidian District, Beijing, 100190, P.R. China.
authors.forename: Gangbei
authors.initials: G
authors.lastname: Zhu
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics and CAS Key Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Science, No. 8, 3rd South Street, Zhongguancun, Haidian District, Beijing, 100190, P.R. China.
authors.forename: Yuxiang
authors.initials: Y
authors.lastname: Weng
authors.affiliation: State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, P.R. China.
authors.forename: Xuxu
authors.initials: X
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, P.R. China.
authors.forename: Xianzhi
authors.initials: X
authors.lastname: Fu
authors.affiliation: State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, P.R. China. jllong@fzu.edu.cn.
authors.forename: Jinlin
authors.identifier: 0000-0002-3675-0941
authors.initials: J
authors.lastname: Long
keywords: CO2 reduction; anatase; charge-separated state; photocatalysis; ruthenium complexes