Water splitting and CO2 reduction over an AgSr2Ta5O15 photocatalyst developed by a valence band control strategy

Ag+ substitution was applied to a tungsten-bronze-type metal oxide. An AgSr2Ta5O15 photocatalyst has emerged for water splitting and CO2 reduction. DFT calculation and diffuse reflection spectra revealed that the Ag d-orbital formed a new valence band, leading to a narrow band gap (3.91 eV) compared...

Full description

Saved in:
Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2023-06, Vol.59 (51), p.7911-7914
Main Authors: Takayama, Tomoaki, Iwase, Akihide, Kudo, Akihiko
Format: Article
Language:English
Subjects:
Carbon dioxide
Metal oxides
Photocatalysts
Tungsten bronze
Valence band
Water splitting
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Ag+ substitution was applied to a tungsten-bronze-type metal oxide. An AgSr2Ta5O15 photocatalyst has emerged for water splitting and CO2 reduction. DFT calculation and diffuse reflection spectra revealed that the Ag d-orbital formed a new valence band, leading to a narrow band gap (3.91 eV) compared to that of NaSr2Ta5O15 (4.11 eV).
ISSN:1359-7345
1364-548X
DOI:10.1039/d3cc01481a