Hydrothermal synthesis and enhanced photocatalytic activity of hierarchical flower-like Fe-doped BiVO4

Fe-doped BiVO4 with hierarchical flower-like structure was prepared via a hydrothermal method using sodium dodecyl benzene sulfonate (SDBS) as structure directing agent. X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), high resolution transmission...

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Published inTransactions of Nonferrous Metals Society of China Vol. 27; no. 4; pp. 868 - 875
Main Authors LI, Hai-bin, ZHANG, Jian, HUANG, Guo-you, FU, Sheng-hao, MA, Chao, WANG, Bai-yu, HUANG, Qian-ru, LIAO, Hong-wei
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.04.2017
Subjects
BiVO4
Fe doping
hydrothermal method
photocatalysis
photocatalysis
BiVO4
Fe doping
hydrothermal method
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Summary:Fe-doped BiVO4 with hierarchical flower-like structure was prepared via a hydrothermal method using sodium dodecyl benzene sulfonate (SDBS) as structure directing agent. X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), high resolution transmission electron microscope (HRTEM), X-ray photoelectron spectroscopy (XPS) and UV-Vis were applied for characterization of the as-prepared samples. The formation mechanism of flower-like structure was proposed based on the evolution of morphology as a function of hydrothermal time. Fe-doped into substitutional sites of BiVO4 effectively improved the migration and separation of photogenerated carrier and enhanced the utilization of visible light. Flower-like Fe-doped BiVO4 showed much higher visible-light-driven photocatalytic efficiency for degradation of methyl blue compared with the pristine BiVO4. And the sample with a Fe/Bi mole ratio of 2.5% showed the highest photocatalytic efficiency.
ISSN:1003-6326
DOI:10.1016/S1003-6326(17)60102-X