Photocatalytic Properties of α-Bi2O3 Nanoneedle Array Synthesized by Hydrothermal Method

Abstract:

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Pure α-Bi2O3 with nanoneedle array structure was synthesized directly by hydrothermal method. The optic absorption of the α-Bi2O3 paricles was cut off at ~483 nm and the band gap of the α-Bi2O3 was estimated to be 2.57 eV. The photocatalytic activity of the α-Bi2O3 samples was higher than TiO2 under a visible light irradiation. As a conclusion, relative narrow band gap of α-Bi2O3 nanoneedle array compared to anatase and the special morphology of nanoneedle array structures may improve the photocatalytic activity in visible light irradiation.

Info:

Periodical:

Solid State Phenomena (Volumes 181-182)

Edited by:

Yuan Ming Huang

Pages:

332-335

DOI:

10.4028/www.scientific.net/SSP.181-182.332

Citation:

H.Y. Wang et al., "Photocatalytic Properties of α-Bi2O3 Nanoneedle Array Synthesized by Hydrothermal Method", Solid State Phenomena, Vols. 181-182, pp. 332-335, 2012

Online since:

November 2011

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Price:

$35.00

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