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Citation: ZHANG Ai-Ping, ZHANG Jin-Zhi. Syntheses and Activities of Visible-Light-Driven Cu/BiVO₄ Composite Photocatalysts[J]. Acta Physico-Chimica Sinica, ;2010, 26(05): 1337-1342. doi: 10.3866/PKU.WHXB20100533 shu

Syntheses and Activities of Visible-Light-Driven Cu/BiVO₄ Composite Photocatalysts

1.
College of Sciences, North China University of Technology, Beijing 100144, P. R. China

Received Date: 9 October 2009
Available Online: 8 April 2010

Cu-doped BiVO4 photocatalysts were hydrothermally synthesized and characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), UV-Vis diffuse reflectance spectroscopy (DRS), and scanning electron microscopy (SEM). XRD showed that all the photocatalysts have the same single monoclinic sheelite structure. XPS results show that Cu exists on the surface of the BiVO4 catalysts as their stable oxide cation species. An absorption edge red-shift was obtained by DRS studies. The photocatalytic activity was investigated using methyl orange (MO) as a photocatalytic degradation model reactant. Results showed that the Cu-doped catalysts enhanced photocatalytic activities under visible-light irradiation. An enhanced photocatalytic mechanismwas also discussed.
- Photocatalysis,
- BiVO4,
- Composite photocatalyst,
- Visible-light,
- Hydrothermal method
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沈阳化工大学材料科学与工程学院沈阳 110142

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Syntheses and Activities of Visible-Light-Driven Cu/BiVO4 Composite Photocatalysts

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通讯作者: 陈斌, bchen63@163.com

Syntheses and Activities of Visible-Light-Driven Cu/BiVO₄ Composite Photocatalysts