Photocatalytic degradation of rhodamine B by Eu-doped BiOI nanobelts induced by visible radiation

  • Prakasit Intaphong
  • Anukorn PhuruangratEmail author
  • Titipun Thongtem
  • Somchai ThongtemEmail author


Pure bismuth oxyiodide (BiOI) and Eu-doped BiOI samples with different contents of Eu dopant as visible-light-driven photocatalysts were prepared by a sonochemical method. The as-synthesized samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and X-ray photoelectron spectroscopy (XPS). In this research, tetragonal BiOI nanobelts were obtained for 1 wt% Eu dopant and an additional phase of orthorhombic Bi5IO7 was detected for doping with 5 wt% and 10 wt% Eu. Thus, the limited content of Eu in BiOI lattice is 1 wt%. The activity of the as-prepared samples was evaluated through the photodegradation of rhodamine B (RhB) under visible radiation, and 1 wt% Eu-doped BiOI nanobelts exhibited the best photocatalytic activity of 98.4% within 240 min. The photodegradation mechanism of RhB by Eu-doped BiOI was also discussed.


Eu-doped BiOI Sonochemical method Photocatalysis 


Funding information

This research was financially supported by the Human Resource Development Project in the Science Achievement Scholarship of Thailand (SAST), Thailand.


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Copyright information

© Australian Ceramic Society 2019

Authors and Affiliations

  1. 1.Department of Materials Science and Technology, Faculty of SciencePrince of Songkla UniversityHat YaiThailand
  2. 2.Materials Science Research Center, Faculty of ScienceChiang Mai UniversityChiang MaiThailand
  3. 3.Department of Chemistry, Faculty of ScienceChiang Mai UniversityChiang MaiThailand
  4. 4.Department of Physics and Materials Science, Faculty of ScienceChiang Mai UniversityChiang MaiThailand

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