Photocatalytic activity of La–N-codoped NaTaO 3 for H 2 evolution from water under visible-light irradiation

A La–N-codoped NaTaO 3 photocatalyst was synthesized by the solid-state reaction and thermal ammonolysis method. The photocatalytic reactions showed that La–N-codoped NaTaO 3 has high activity of H 2 evolution (7.0 µmol h −1 ) and long time stability under visible-light irradiation (λ > 420 nm)....

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2011-04, Vol.44 (16), p.165401
Main Authors: Zhao, Zongyan, Li, Ruipu, Li, Zhaosheng, Zou, Zhigang
Format: Article
Language:English
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Summary:A La–N-codoped NaTaO 3 photocatalyst was synthesized by the solid-state reaction and thermal ammonolysis method. The photocatalytic reactions showed that La–N-codoped NaTaO 3 has high activity of H 2 evolution (7.0 µmol h −1 ) and long time stability under visible-light irradiation (λ > 420 nm). DFT calculations suggested that the visible-light absorption of La–N-codoped NaTaO 3 originated from the transition of electrons from the impurity states to the bottom of the conduction band.
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/44/16/165401