Silver vanadate nanowires: photocatalytic properties and theoretical calculations

Silver vanadate nanowires: photocatalytic properties and theoretical calculations Silver vanadate (β-AgVO3) nanowires were synthesized by a hydrothermal method, assisted with surfactant, and evaluated for degradation of 2-propanol under visible-light irradiation. Field-emission scanning electron microscopy (FE-SEM) revealed the β-AgVO3 nanowires were of uniform size—several micrometers long and ~20 nm in diameter. According to the diffuse reflectance spectrum of the β-AgVO3 nanowires their energy band gap was 2.2 eV, corresponding to a wide range of visible-light absorption up to 550 nm. The electronic structure of β-AgVO3 was calculated theoretically on the basis of density functional theory. The β-AgVO3 nanowires catalyst had greater photocatalytic activity than commercial N-TiO2 in the degradation of 2-propanol under visible-light irradiation. This was mainly ascribed to the narrow band gap, good crystallinity, and large surface-to-volume ratio of β-AgVO3 nanowires. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Silver vanadate nanowires: photocatalytic properties and theoretical calculations

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Publisher
Springer Netherlands
Copyright
Copyright © 2014 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-014-1856-6
Publisher site
See Article on Publisher Site

Abstract

Silver vanadate (β-AgVO3) nanowires were synthesized by a hydrothermal method, assisted with surfactant, and evaluated for degradation of 2-propanol under visible-light irradiation. Field-emission scanning electron microscopy (FE-SEM) revealed the β-AgVO3 nanowires were of uniform size—several micrometers long and ~20 nm in diameter. According to the diffuse reflectance spectrum of the β-AgVO3 nanowires their energy band gap was 2.2 eV, corresponding to a wide range of visible-light absorption up to 550 nm. The electronic structure of β-AgVO3 was calculated theoretically on the basis of density functional theory. The β-AgVO3 nanowires catalyst had greater photocatalytic activity than commercial N-TiO2 in the degradation of 2-propanol under visible-light irradiation. This was mainly ascribed to the narrow band gap, good crystallinity, and large surface-to-volume ratio of β-AgVO3 nanowires.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Oct 29, 2014

References

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