Figure 1. Experiments reveal the strong visible-light absorption of Pb2Ti2O5.4F1.2
The inset shows an image of Pb2
, shown to be capable of absorbing visible light of a wavelength of around 500 nm. This ability is thought to be due to the bonding structure around the Pb cation within the pyrochlore lattice, shown on the right.
1Visible light-driven photocatalysis
: The process of converting solar to fuel energy using visible-light-absorbing semiconductor materials.
：One of crystal structures represented by a chemical formula of A2B2X6X'
, where A
show cations, X
show anions. The A
elements are generally rare-earth or transition metal elements. The presence of two short bonds between A
site ion (Pb) and X'
site (O) is the characteristic of this structure.
: Refers to the difference in energy of an electron in the valence band and the conduction band, which indicates the conductivity of a material.
: A property whereby electrons are held tightly to the nucleus. Fluorine has the highest electronegativity among all elements.
: The regions where electrons can be calculated to be present within atoms.
, Tom Ichibha3
, Kenta Hongo4,5,6,7
, Daling Lu8
, Ryo Maezono3,7
, Hiroshi Kageyama9
, Osamu Ishitani1
, Kengo Oka10
, and Kazuhiko Maeda*1
, A Stable, Narrow-Gap Oxyfluoride Photocatalyst for Visible-Light Hydrogen Evolution and Carbon Dioxide Reduction, Journal of the American Chemical Society
. DOI: 10.1021/jacs.8b02822
Department of Chemistry, School of Science, Tokyo Institute of Technology
Japan Society for the Promotion of Science
School of Information Science, JAIST
Research Center for Advanced Computing Infrastructure, JAIST
Center for Materials Research by Information Integration, Research and Services Division of Materials Data and Integrated System, National Institute for Materials Science
PRESTO, Japan Science and Technology Agency
Computational Engineering Applications Unit, RIKEN
Suzukakedai Materials Analysis Division, Technical Department, Tokyo Institute of Technology
Graduate School of Engineering, Kyoto University
Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University
*Corresponding author’s email: email@example.com
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