Journal
MATERIALS LETTERS
Volume 165, Issue -, Pages 263-266Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2015.12.008
Keywords
Semiconductors; Composite materials; Electrospinning; Photocatalysis
Funding
- National Natural Science Foundation of China [51572189, 51372169]
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Novel hexagonal (h)-YFeO3/alpha-Fe2O3 heterojunction composite nanowires were firstly prepared via electrospinning technique assisted with anneal treatment. The results show that the composite nanowires with a diameter of 150 nm are composed by distributed small h-YFeO3 nanograins and continuous alpha-Fe2O3 nanograins. Compared with pure h-YFeO3 and pure alpha-Fe2O3, the prepared h-YFeO3/alpha-Fe2O3 composite nanowires possess relatively higher electron-hole separation efficiency as well as photocatalytic activity of RhB degradation due to the formed heterojunctions between the h-YFeO3 nanograins and the alpha-Fe2O3 nanograins. Furthermore, the h-YFeO3/alpha-Fe2O3 composite nanowires exhibit good photocatalytic stability. At last, mechanism of enhanced photocatalysis about the h-YFeO3/alpha-Fe2O3 heterojunction is also illustrated. (C) 2015 Elsevier B.V. All rights reserved.
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