Journal
MATERIALS LETTERS
Volume 77, Issue -, Pages 21-24Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2012.02.116
Keywords
Nanomaterials; Bi2WO6; Butterfly wing; Hierarchical structures; Light harvesting
Funding
- NSFC [51072117, 51171110]
- National Basic Research Program of China (973 Program) [2012CB619600]
- Shanghai Science and Technology Committee [0JC1407600]
- KBSI [T31903]
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Biomimetic Bi2WO6 with hierarchical structures inherited from butterfly wings (morph-Bi2WO6) were fabricated by a simple soaking and calcinating method. The hierarchical structures down to nanometer level were retained in the resultant morph-Bi2WO6 with pure orthorhombic phase, indicating that our biomimetic approach is effective in controlling the composition and structure of Bi2WO6. The reflectance spectra showed an improved absorption property of morph-Bi2WO6 under visible light over the Bi2WO6 powder synthesized under the same condition without butterfly wings, owing to the hierarchical structures. The strategy is expected to extend to other ternary compound materials for potential applications in water splitting and photocatalyst. (C) 2012 Elsevier B.V. All rights reserved.
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