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A Novel Visible‐Light‐Responsive Semiconductor ScTaO 4−x N x for Photocatalytic Oxygen and Hydrogen Evolution Reactions
Author(s) -
Pei Lang,
Cai Hong,
Jin Hao,
Li Taozhu,
Zhu Heng,
Yuan Yongjun,
Zhong Jiasong,
Yan Shicheng,
Zou Zhigang
Publication year - 2021
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202001341
Subject(s) - photocatalysis , visible spectrum , water splitting , photochemistry , materials science , semiconductor , photocatalytic water splitting , absorption (acoustics) , doping , oxide , oxygen , nitrogen , hydrogen , oxygen evolution , optoelectronics , chemistry , catalysis , electrochemistry , metallurgy , composite material , biochemistry , organic chemistry , electrode
Abstract Screening of visible‐light‐responsive semiconductor photocatalysts is a significant target for solar water splitting systems. Herein, a newly designed Ta‐based oxynitride, namely ScTaO 4−x N x , was successfully synthesized via nitrogen doping of ScTaO 4 oxide precursors at 1273 K under NH 3 flow. The ScTaO 4−x N x photocatalyst, with a strong band‐to‐band visible light absorption as far as 540 nm, can be employed for both water oxidation and reduction half‐reactions under visible light illumination, demonstrating great potential for photocatalytic water splitting.