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作者:

Yang, Tao (Yang, Tao.) | Xia, Dingguo (Xia, Dingguo.) (学者:夏定国) | Chen, Ge (Chen, Ge.) (学者:陈戈) | Chen, Yu (Chen, Yu.)

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摘要:

BiVO4 was synthesized from a mixture of aqueous Bi(NO3)3 and NH4VO3 solutions over a wide range of temperature via an easy hydrothermal method. The BiVO4 samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), UV-vis and Raman spectroscopy. Spherical and decahedral BiVO4 with better crystallinity can be obtained by changing the reaction temperature and adding the surfactant sodium dodecyl sulfate (SDS) to the mixed solutions. In addition, we have tested the photocatalytic activity of BiVO4 with the different morphologies. The highest initial rate of O2 evolution was 355 μmol h-1 under visible light radiation. This result indicates that BiVO4 prepared in our experiment is a promising photocatalyst in the visible light region. © 2008 Elsevier B.V. All rights reserved.

关键词:

Bismuth compounds Composite materials Crystallinity Crystal structure Enamels Field emission microscopes High resolution transmission electron microscopy Light Morphology Photocatalytic activity Scanning electron microscopy Sodium dodecyl sulfate Sulfur compounds Synthesis (chemical)

作者机构:

  • [ 1 ] [Yang, Tao]College of Environmental and Energy Engineering, Beijing University of Technology, BUT-CEEE, Chaoyang District, Beijing 100022, China
  • [ 2 ] [Xia, Dingguo]College of Environmental and Energy Engineering, Beijing University of Technology, BUT-CEEE, Chaoyang District, Beijing 100022, China
  • [ 3 ] [Chen, Ge]College of Environmental and Energy Engineering, Beijing University of Technology, BUT-CEEE, Chaoyang District, Beijing 100022, China
  • [ 4 ] [Chen, Yu]College of Environmental and Energy Engineering, Beijing University of Technology, BUT-CEEE, Chaoyang District, Beijing 100022, China

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来源 :

Materials Chemistry and Physics

ISSN: 0254-0584

年份: 2009

期: 1

卷: 114

页码: 69-72

4 . 6 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

JCR分区:1

中科院分区:1

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SCOPUS被引频次: 56

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