Photocatalytic removal of nitric oxide by Bi2Mo3O12 prepared by co-precipitation method

Authors: E. Luévano-Hipólito, A. Martínez-de la Cruz, Q.L. Yu, H.J.H. Brouwers

Abstract:
Bi₂Mo₃O₁₂ oxide was prepared by co-precipitation method at 250^◦C. The successful formation of the oxide was determined by X-ray powder diffraction (XRD) and its physical properties were studied using scanning electron microscopy (SEM), diffuse reflectance spectroscopy (DRS) and adsorption–desorption N2 isotherms (BET). Bi₂Mo₃O₁₂ sample was composed of agglomerates of primary particles with faces and edges well defined. The oxide exhibited excellent performance for the removal of nitric oxide (NO) from air, reaching a percentage remove of 88.9% in steady state under UVA light irradiation. The synergetic effect between Bi₂Mo₃O₁₂ and Bi₂MoO₆ phases was also investigated for this reaction. The results indicated that Bi₂MoO₆ is less active than Bi₂Mo₃O₁₂ for the photocatalytic removal of NO under same experimental conditions.

Keywords:
Heterogeneous photocatalysis
Bismuth molybdates
Bi₂Mo₃O₁₂
NO_x

Published in: Applied catalysis A: General   (Volume 468, Pages 1-474, 5 November 2013)

Publisher: Elsevier  

ISSN Information: 0926-860X

Photocatalytic removal of nitric oxide by Bi2Mo3O12 prepared by co-precipitation method

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