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Electrospinning synthesis of N-doped TiO2 fiber membranes and its enhanced photocatalysis performance


N-doped TiO2 fiber membranes were prepared by electrospinning method and adsorptive chitosan was added as a nitrogen source. The obtained TiO2 fiber membranes were analyzed by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). The results show that the film has adsorption properties; furthermore, the morphology of the TiO2 fiber with a chitosan content of 0.5 g after calcination provides the best catalytic performance; An anatase–rutile titania was found in the oxidized fiber film found in the Raman spectrum TiO2; XPS demonstrated that the introduction of chitosan could replace N atom with partial lattice oxygen in TiO2. Moreover, the degradation rate of methylene blue of the material was about 60–80% after 4-h reaction, and the maximum degradation rate was achieved by nanofiber film with chitosan concentration of 0.5 g.

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X-ray photoelectron spectroscopy


X-ray diffraction


Transmission electron microscopy


Scanning electron microscopy






Tetrabutyl titanate


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This work was supported by National Natural Science Foundation of China (21407050); The Natural Science Foundation of the Jiangsu province (BK20180103); Qing Lan Project of Jiangsu Province; Jiangsu Collaborative Innovation Center of Technology and Material for Water Treatment.

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Correspondence to Feng Chen or Wenqing Zhang.

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On behalf of all authors, we state that there is no conflict of interest to this work. We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work. There is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the position presented in, or the review of, the manuscript entitled.

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Gao, J., Zhang, L., Qian, J. et al. Electrospinning synthesis of N-doped TiO2 fiber membranes and its enhanced photocatalysis performance. Chem. Pap. 75, 115–122 (2021).

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  • Chitosan fiber membrane
  • N-doped TiO2
  • Photocatalysis performance
  • Waste water treatment