Nano

SKKU Advanced Institute of Nano Technology (성균관대학교 성균나노과학기술원)
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Preparation and Characterization of Sulfated TiO2/zeolite Composite Catalysts with Enhanced Photocatalytic Activity

  • Zhao, Yuan (College of Material Science and Technology Nanjing University of Aeronautics and Astronautics) ;
  • Li, JingXiu (College of Material Science and Technology Nanjing University of Aeronautics and Astronautics) ;
  • Wang, Ling (College of Material Science and Technology Nanjing University of Aeronautics and Astronautics) ;
  • Hao, Yanan (College of Material Science and Technology Nanjing University of Aeronautics and Astronautics) ;
  • Yang, Lin (College of Material Science and Technology Nanjing University of Aeronautics and Astronautics) ;
  • He, Pingting (College of Material Science and Technology Nanjing University of Aeronautics and Astronautics) ;
  • Xue, JianJun (College of Material Science and Technology Nanjing University of Aeronautics and Astronautics)
  • Received : 2018.04.19
  • Accepted : 2018.09.06
  • Published : 2018.10.31
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Abstract

Sulfated $TiO_2$ nanoparticles were successfully immobilized on zeolite through improving hydrolysis-deposition method. Microstructure, crystallization, surface state and surface area of composite catalysts were characterized by SEM, XRD, FTIR spectra, XPS and BET and the photocatalytic activity was evaluated by degradation of methyl orange under UV irradiation. We optimized these factors ($SO^{2-}_4$ ions, calcination temperature and loading amount of sulfated $TiO_2$) on photocatalytic activity and crystallization of composite photocatalysts. The results indicated that the $SO^{2-}_4$ ions are successfully immobilized on the surface of $TiO_2$, and sulfated $TiO_2$/zeolite show the highest photocatalytic activity for methyl orange at the $[SO^{2-}_4 ]/[Ti^{4+}]$ molar rate of 1:1, calcination temperature of $600^{\circ}C$ for 2 h, and sulfated $TiO_2$ loading amount of 40%, respectively.

Keywords

Acknowledgement

Supported by : Central Universities

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