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.
Research on Chemical Intermediates – Springer Journals
Published: Oct 29, 2014
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