期刊
APPLIED SURFACE SCIENCE
卷 319, 期 -, 页码 136-142出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2014.06.108
关键词
TiO2; Carbon fiber; Photocatalyst; Electrospinning
类别
资金
- National Natural Science Foundation of China [51173202, 51203182]
- Hunan Provincial Natural Science Foundation of China [13JJ4009]
- State Key Laboratory of Low-Dimensional Quantum Physics [KF201312]
- Aeronautical Science Foundation of China [2013ZF88007]
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University [20131304]
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology (Zhejiang Sci-Tech University), Ministry of Education [2013002]
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing (Wuhan University of Technology) [2014-KF-10]
- Aid program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province
- Aid Program for Innovative Group of National University of Defense Technology
Flexible N-doped TiO2/Cultrafine fiber (NTCf) mat has been produced via electrospinning and subsequent heat treatment, analyzed by a combination of characterizations. The nitrogen content can be modulated by the addition of urea. The composite fiber with mean diameter of around 500 nm exhibits outstanding mechanical flexibility. The TiO2 in the fiber obtained at 700 degrees C is anatase with a mass ratio of 23 wt%. In the photodegradation experiment under simulated sunlight, the as-prepared flexible mat demonstrates remarkable efficiency in the degradation of methylene blue (MB) due to the well-proportioned distribution of TiO2 nanoparticles and the improvement of charge transfer process. The nitrogen species in TiO2 lattice and the nitrogen functional groups on the surface of the fiber play crucial impacts on the photocatalytic activity. (C) 2014 Elsevier B. V. All rights reserved.
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