Nano particle/microsphere TiO2/BiOBr Z-scheme heterojunction with high visible-light photocatalytic activity in tetracycline hydrochloride degradation

作者：Zhang, Sufang; Liu, Yulin; Liao, Guosheng; He, Jinyun^*; Long, Fei

来源：Journal of Materials Science: Materials in Electronics , 2022, 33(34): 25878-25890.

DOI：10.1007/s10854-022-09278-3

• HYDROTHERMAL SYNTHESIS
• BIOBR
• LEVOFLOXACIN
• CONSTRUCTION
• NANOCOMPOSITES
• PERFORMANCE
• POLLUTANTS

Nano particle/microsphere TiO2/BiOBr Z-scheme heterojunction is synthesized through an ionic-liquid-hydrothermal method. Flower-like BiOBr are firstly synthesized by an ionic liquid method. Then TiO2 nanoparticles are constructed on BiOBr microspheres through hydrothermal method. The photocatalytic performance of TiO2/BiOBr heterojunction was much better than that of BiOBr or TiO2. 79.33% of tetracycline hydrochloride (TC) is degraded which is 2.23 times and 1.15 times that of the pure BiOBr and TiO2, respectively. Physical and chemical property of the TiO2/BiOBr heterojunctions with varied amount of TiO2 are analyzed by XRD, XPS, FE-SEM, TEM, HRTEM, BET and DRS et. al. The photocatalytic mechanism is also proposed.

• 单位
  桂林理工大学