A facile environmentally benign strategy to synthesize Bi3+ self-doped NaBiO3·2H2O with enhanced visible light photocatalytic performance

A facile environmentally benign strategy to synthesize Bi3+ self-doped NaBiO3·2H2O with enhanced... A facile environmentally benign strategy was developed to prepare Bi3+ self-doped NaBiO3·2H2O by acidic hydrolysis of NaBiO3·2H2O in citric acid aqueous solution. The investigation of methyl orange degradation performance revealed that Bi3+ self-doped NaBiO3·2H2O exhibited remarkably enhanced visible light photocatalytic activity than pristine NaBiO3·2H2O, and the optimal Bi3+ self-doped NaBiO3·2H2O (CBO-0.25) achieved the maxima (92.5%) degradation efficiency within 30 min. Due to the formation of new energy level derived from Bi3+ in the forbidden gap, Bi3+ self-doped NaBiO3·2H2O samples presented extended visible light response range and improved photogenerated charges separation efficiency than pristine NaBiO3·2H2O, which is responsible for the enhancement of photocatalytic performance. Radical capture experimental results confirmed that hole was the dominant reactive species. Our synthesis method for Bi3+ self-doped NaBiO3·2H2O may pave a new way for designing self-doped materials. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science: Materials in Electronics Springer Journals

A facile environmentally benign strategy to synthesize Bi3+ self-doped NaBiO3·2H2O with enhanced visible light photocatalytic performance

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Publisher
Springer US
Copyright
Copyright © 2017 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Materials Science; Optical and Electronic Materials; Characterization and Evaluation of Materials
ISSN
0957-4522
eISSN
1573-482X
D.O.I.
10.1007/s10854-017-8433-x
Publisher site
See Article on Publisher Site

Abstract

A facile environmentally benign strategy was developed to prepare Bi3+ self-doped NaBiO3·2H2O by acidic hydrolysis of NaBiO3·2H2O in citric acid aqueous solution. The investigation of methyl orange degradation performance revealed that Bi3+ self-doped NaBiO3·2H2O exhibited remarkably enhanced visible light photocatalytic activity than pristine NaBiO3·2H2O, and the optimal Bi3+ self-doped NaBiO3·2H2O (CBO-0.25) achieved the maxima (92.5%) degradation efficiency within 30 min. Due to the formation of new energy level derived from Bi3+ in the forbidden gap, Bi3+ self-doped NaBiO3·2H2O samples presented extended visible light response range and improved photogenerated charges separation efficiency than pristine NaBiO3·2H2O, which is responsible for the enhancement of photocatalytic performance. Radical capture experimental results confirmed that hole was the dominant reactive species. Our synthesis method for Bi3+ self-doped NaBiO3·2H2O may pave a new way for designing self-doped materials.

Journal

Journal of Materials Science: Materials in ElectronicsSpringer Journals

Published: Dec 20, 2017

References

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