Preparation and Characterization of Novel Visible Light Sensitive Pt/BiVO4 Photocatalysts

doi:10.3724/SP.J.1077.2008.00449

Abstract

Abstract: Novel Pt/BiVO₄ photocatalysts were prepared by impregnation method using Bi(NO₃)₃, NH₄VO₃ and H₂ PtCl₆ as starting materials. The obtained samples were characterized by XRD, SEM, XPS and DRS. The XRD patterns indicate that the Pt/BiVO₄ photocatalysts consist of monoclinic phase. The DRS measurements show that the visible light absorption of the composite samples is greatly increased, and the absorption edge shifts to red light region. The photocatalytic activities were evaluated by degradation of methyl orange under visible light irradiation (λ>400nm). The photocatalytic activity of the Pt/BiVO₄ composite sample is significautly enhanced, which is probably due to the photo-sensitivity of PtCl₄ particles.

Key words: bismuth vanadate, photocatalyst, visible light, platinum tetrachloride

CLC Number:

O643

GE Lei. Preparation and Characterization of Novel Visible Light Sensitive Pt/BiVO₄Photocatalysts[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2008.00449.

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Preparation and Characterization of Novel Visible Light Sensitive Pt/BiVO₄Photocatalysts

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