• Dang Nguyen Nha Khanh
  • Nguyen Thi Mai Tho
  • Nguyen Quoc Thang
  • Nguyen Thanh Tien
  • Chau Tan Phong
  • Mai Quynh Cang
  • Nguyen Thi Kim Phuong HoChiMinh city Institute of Resources Geography



ZnBi2O4/rGO hybrid, Indigo Carmine, visible-light photodegradation


A novel ZnBi2O4/rGO hybrid catalysts had been synthesized by a simple precipitation method. The crystallinity, structural, and morphological features were studied by XRD, FE-SEM and UV-Vis diffused reflectance  techniques. The photocatalytic activity of ZnBi2O4/rGO catalysts were evaluated by degradation of Indigo Carmine dye under visible-light irradiation. The enhancement of photocatalytic properties of ZnBi2O4/rGO attributed to the synergistic effect between ZnBi2O4 and rGO, which effectively separation of the photogenerated electron-hole pairs in ZnBi2O4. Moreover, the obtained ZnBi2O4/rGO displayed high chemical stability after four consecutive experiments under visible light.


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