Synthesis of BiIO4/Ag3PO4 nanocomposite with enhanced photocatalytic activity for degradation of phenol
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A novel BiIO4/Ag3PO4 nanocomposite photocatalyst was synthesized through hydrothermal and chemical precipitation methods. The as-prepared samples were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), and ultraviolet visible diffuse reflectance spectroscopy. Moreover, the photocatalytic activity was evaluated by degradation of phenol under visible light irradiation. BiIO4/Ag3PO4 nanocomposite exhibited higher photocatalytic activity than BiIO4 and Ag3PO4, with 5% BiIO4/Ag3PO4 nanocomposite displaying the highest activity. The enhanced photocatalytic performance may be due to the formation of BiIO4/Ag3PO4 heterojunction interface, which is beneficial to the separation and migration of the photogenerated electrons and holes. In addition, the active species trapping experiment demonstrated that •O2− and •OH were the major active species during the photocatalytic process.
KeywordsBiIO4 Ag3PO4 Nanocomposite Photocatalytic Nanostructured catalysts
This study was funded by the National Nature Science Foundation of China (No. 21273034).
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Conflict of interest
The authors declare that they have no conflict of interest.