Journal
MATERIALS LETTERS
Volume 118, Issue -, Pages 107-110Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2013.12.051
Keywords
alpha-Fe2O3/gamma-Fe2O3; Heterophase junction; Nanocomposites; Magnetic materials; Photocatalysis; Visible light
Funding
- National Natural Science Foundation of China [11179038, 10974073]
- Specialized Research Fund for the Doctoral Program of Higher Education [20120211130005]
- Fundamental Research Funds for the Central Universities [2022012zr0036]
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Magnetic heterophase photocatalyst of alpha-Fe2O3/gamma-Fe2O3 nanorods was prepared by a facile thermal decomposition and redox method. The nanorods were about 100 nm in length and 20 nm in diameter, and well-structured heterophase junctions were formed between alpha-Fe2O3 and gamma-Fe2O3. Visible-light induced photodegradation of model dye rhodamine B was investigated by using the as-prepared alpha Fe2O3/gamma-Fe2O3 nanorods. The material exhibits a remarkably enhanced visible-light photocatalytic activity than the single-phase alpha-Fe2O3 or gamma-Fe2O3 owing to its well-structured interfaces and suitable band configuration. The existence of magnetic gamma-Fe2O3 facilitates the practical application of photocatalysts. (C) 2013 Elsevier B.V. All rights reserved.
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