Abstract
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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Abbreviations
- XPS:
-
X-ray photoelectron spectroscopy
- XRD:
-
X-ray diffraction
- TEM:
-
Transmission electron microscopy
- SEM:
-
Scanning electron microscopy
- N-Doped:
-
Nitrogen-Doped
- PVP:
-
Polyvinylpyrrolidone
- TBOT:
-
Tetrabutyl titanate
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Acknowledgements
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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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). https://doi.org/10.1007/s11696-020-01286-z
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DOI: https://doi.org/10.1007/s11696-020-01286-z
Keywords
- Chitosan fiber membrane
- N-doped TiO2
- Photocatalysis performance
- Waste water treatment