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Enhancing photocatalytic hydrogen evolution from water splitting over CaTaO2N via engineering the surface of a platinum cocatalyst.

Authors :
Liu, Xuecheng
Pei, Tingting
Yan, Linjie
Lei, Xiaoyi
Zheng, Tingting
Ha, Xia
Xu, Hui
Source :
New Journal of Chemistry. 8/28/2024, Vol. 48 Issue 32, p14298-14304. 7p.
Publication Year :
2024

Abstract

Cocatalyst loading is of critical importance in efficient photocatalytic water splitting over perovskite oxynitrides. Perovskite CaTaO2N was synthesized for enhancing photocatalytic hydrogen evolution via decoration of a Pt cocatalyst by impregnation–reduction and photodeposition methods. The Pt-loaded CaTaO2N photocatalyst evolves 6.4 μmol H2 per hour, with an apparent quantum yield as high as 0.67% at a wavelength of 420 nm. Decorating the cocatalyst with uniform dispersion and intimate contact onto the surface of narrow-bandgap perovskite oxynitrides is an efficient method to upgrade photocatalytic hydrogen evolution from water splitting. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
11440546
Volume :
48
Issue :
32
Database :
Academic Search Index
Journal :
New Journal of Chemistry
Publication Type :
Academic Journal
Accession number :
178977236
Full Text :
https://doi.org/10.1039/d4nj03029j