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<p>Bismuth titanate shows great potential in the treatment of pollutants due to its good photocatalytic activity and stability. However, the non-selective degradation ability limits its application in pollutant treatment. Here, flake inorganic imprinted bismuth titanate (FII-BTO) with nanosheet structure was prepared by combining the inorganic imprinting technique with hydrothermal method. The formation of specific imprinting cavities on the surface of FII-BTO catalyst could specifically recognize and adsorb ciprofloxacin (CIP), and effectively improved the photoresponse and charge separation efficiency. The photodegradation rate of CIP by FII-BTO is 55.76%, and the reaction kinetic rate was increased by twice. Furthermore, compared with non-imprinted materials, FII-BTO selectively adsorbed CIP with <i>K</i><sub>selectivity</sub> value of 1.81, showing good selective photocatalytic degradation performance. This work provides valuable insights into the development of inorganic imprinting technology for selective degradation of pollutants, and provides promising directions for future catalyst applications.</p>

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Hydrothermal Synthesis of Inorganic Imprinted Bi4Ti3O12 Nanosheets for Efficient Selective Photocatalytic Degradation of Ciprofloxacin

  • 期刊论文

  • 发表日期：

    2025年4月12日

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  • Yufan Wang,
  • Guosheng Zhou,
  • Yangrui Xu,
  • Yu Cheng,
  • Minshan Song,
  • Jie Jin,
  • Xinlin Liu,
  • Ziyang Lu

摘要

Bismuth titanate shows great potential in the treatment of pollutants due to its good photocatalytic activity and stability. However, the non-selective degradation ability limits its application in pollutant treatment. Here, flake inorganic imprinted bismuth titanate (FII-BTO) with nanosheet structure was prepared by combining the inorganic imprinting technique with hydrothermal method. The formation of specific imprinting cavities on the surface of FII-BTO catalyst could specifically recognize and adsorb ciprofloxacin (CIP), and effectively improved the photoresponse and charge separation efficiency. The photodegradation rate of CIP by FII-BTO is 55.76%, and the reaction kinetic rate was increased by twice. Furthermore, compared with non-imprinted materials, FII-BTO selectively adsorbed CIP with Kselectivity value of 1.81, showing good selective photocatalytic degradation performance. This work provides valuable insights into the development of inorganic imprinting technology for selective degradation of pollutants, and provides promising directions for future catalyst applications.