Preparation of graphene–TiO2composites with enhanced photocatalytic activity

The photocatalytic activity of TiO2 is limited by the aggregation of nanoparticles and the fast electron–hole pair recombination

Kangfu Zhou; Yihua Zhu; Xiaoling Yang; Xin Jiang; Chunzhong Li

2010

Scholarcy highlights

  • The photocatalytic activity of TiO2 is limited by the aggregation of nanoparticles and the fast electron–hole pair recombination
  • TiO2 particles with anatase phase and a narrow size distribution were dispersed on the surface of graphene sheets uniformly
  • The fluorescence quenching confirmed that graphene acted as an electron-acceptor material to effectively hinder the electron–hole pair recombination of TiO2
  • The product prepared with 30 mg of graphite oxide and 8 h of reaction time exhibited excellent photocatalysis to methylene blue degradation under irradiation of simulated sunlight
  • Such intriguing photocatalyst may find significant applications in various fields

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