Journal
MATERIALS LETTERS
Volume 96, Issue -, Pages 12-15Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2013.01.001
Keywords
Hematite; Nanoparticles; Nonspherical hollow structures; Electron microscopy; Photocatalyst; Visible light
Funding
- State Key Development Program for Basic Research of China [2007CB935603]
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Hollow structures are attracting increasing attention due to their unique properties and potential applications in many fields. Despite the great successes achieved in the synthesis of hollow spheres, the preparation of nonspherical hollow structures still remains a great challenge. In this paper, we developed a facile method to prepare hematite hollow structures with cocoon-like shape. The as-prepared hematite nanococoons were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and high-resolution TEM (HRTEM). Such cocoon-like structures are with a uniform diameter of 18 nm, length of 90 nm, and shell thickness of 5 nm. Furthermore, the as-prepared sample exhibited high visible-light photocatalytic activity for the degradation of methyl orange due to their special hollow structure. (C) 2013 Elsevier B.V. All rights reserved.
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