Journal
JOURNAL OF POWER SOURCES
Volume 285, Issue -, Pages 178-184Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2015.03.096
Keywords
Perovskite; Orthoferrites; Nanotube; Visible-light photocatalyst
Funding
- National Natural Science Foundation of China [51273134]
- Jiangsu Provincial Natural Science Foundation of China [BK2012635]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Alfred Deakin Postdoctoral Fellowship
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Perovskite praseodymium ferrite (PrFeO3) porous nanotubes are prepared by electrospinning of the precursor solution into nanofibers, subsequently by annealing the precursor fibers at a low temperature (e.g. 40 degrees C) and finally by calcination at a high temperature. The low temperature annealing treatment is found to play a key role in the formation of porous nanotube. The porous tubes show a perovskite-type PrFeO3 crystal characteristic with high optical absorption in the UV-visible region and an energy band gap of 1.97 eV. When compared with PrFeO3 porous nanofibers and PrFeO3 particles, the PrFeO3 porous nanotubes show better visible-light photo-catalytic ability to degrade Rhodamine B in aqueous phase because of the increased surface area and more active catalytic sites on the inner walls and outer surfaces. (C) 2015 Elsevier B.V. All rights reserved.
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