• design and controllable synthesis of α-/γ-bi2o3 homojunction with synergetic effect on photocatalytic activity

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 543
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a α-/γ-bi2o3 composite has been successfully prepared via a hydrothermal method. the as-prepared nanocrystals are characterized by the x-ray diffraction, fourier transformation infrared spectrum, scanning electron microscopy, transmission electron microscopy, and high-resolution transmission electron microscopy examination. the homojunction between the α-bi2o3 and γ-bi2o3 is confirmed by the diffuse reflectance spectra and impedance spectrum. the photocatalytic activities of the samples were evaluated by the degradation of rhodamine b as a model pollutant. the composite exhibited higher photocatalytic activity than bare α-bi2o3 or γ-bi2o3 in the degradation of rhb. the enhanced photocatalytic activity is attributed to the synergetic effect of the homojunction.

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