Journal
CHEMICAL PHYSICS LETTERS
Volume 673, Issue -, Pages 1-6Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2017.01.052
Keywords
Fe2O3 nanobelt arrays; Photocatalytic activity; Heterojunction; Low-dimensional nanostructure; SnO2 nanorods
Funding
- National Natural Science Foundation of China [51171133, 51471122, 51601136]
- Natural Science Foundation of Hubei Province of China [2015CFA128]
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Tin(IV) oxide has been intensively employed in optoelectronic devices due to its excellent electrical and optical properties. But the high recombination rates of the photogenerated electron-hole pairs of SnO2 nanomaterials often results in low photocatalytic efficiency. Herein, we proposed a facile route to prepare a novel Fe2O3/SnO2 heterojunction structure. The nanobelt arrays grown on iron foil naturally form a Schottky-type contact and provide a direct pathway for the photogenerated excitons. Hence, the Fe2O3/SnO2 nanobelt arrays exhibit much improved photocatalytic performance with the degradation rate constant on the Fe2O3/SnO2 film of approximately 12 times to that of alpha-Fe2O3 nanobelt arrays. (C) 2017 Elsevier B.V. All rights reserved.
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