N‑Doped TiO2 Nanofibers Deposited by Electrospinning

N-doped TiO2 nanofibers were deposited by electrospinning onto silicon and then annealed in air. They have been analyzed by secondary electron microscopy, X-ray diffraction, and X-ray photoemission. After the thermal processes, the fibers, having a diameter between 300 and 400 nm, contain a small am...

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Bibliographic Details
Published in:Journal of physical chemistry. C 2012-08, Vol.116 (34), p.18427-18431
Main Authors: Di Camillo, Daniela, Ruggieri, Fabrizio, Santucci, S, Lozzi, Luca
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties
Materials science
Methods of nanofabrication
Nanocrystalline materials
Nanoscale materials and structures: fabrication and characterization
Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals
Physics
Structure of solids and liquids
crystallography
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
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Summary:N-doped TiO2 nanofibers were deposited by electrospinning onto silicon and then annealed in air. They have been analyzed by secondary electron microscopy, X-ray diffraction, and X-ray photoemission. After the thermal processes, the fibers, having a diameter between 300 and 400 nm, contain a small amount of nitrogen and still show the TiO2 anatase crystalline structure. Different solutions and annealing processes were used to vary the nitrogen concentration and the crystalline phase. These nanofibers were successfully tested as photocatalytic devices for methylene blue degradation under visible light irradiation.
ISSN:1932-7447
1932-7455
DOI:10.1021/jp302499n