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Effect of surfactant on the photocatalytic activity of BiWO nanoparticles

Journal of Materials Science: Materials in Electronics, ISSN: 1573-482X, Vol: 28, Issue: 13, Page: 9777-9781
2017
  • 18
    Citations
  • 0
    Usage
  • 14
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    18
    • Citation Indexes
      18
  • Captures
    14

Article Description

A series of BiWO photocatalysts were synthesized by a surfactant-assisted hydrothermal method. The products were characterized with X-ray diffraction (XRD), UV–vis-near-IR diffuse reflectance spectra (UV–Vis), scanning electron microscope (SEM) and Brunauer-Emmett-Teller (BET) surface area measurement. XRD results showed that the BiWO samples possessed pure monoclinic phase. The surfactant, especially SDBS addition would greatly affect the physical and chemical properties of BiWO. The average crystalline size of BWO-SBDS is rather smaller than that of BWO-None photocatalyst. The UV–Vis and BET results indicated that the BWO-SBDS has a narrower band gap energy and a larger surface area than BWO-CTAB and BWO-None products. The photocatalytic activities of as-prepared samples were evaluated by the degradation of methylene blue (MB) in an aqueous solution. The SDBS-assisted BiWO product had a much higher photocatalytic activity than the other two BiWO products in our photocatalytic system. The degradation percentage was about 97.0% with the reaction time at 120 min for BWO-SBDS sample. The improvement reason by SDBS adding was also discussed.

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