Journal
MATERIALS LETTERS
Volume 67, Issue 1, Pages 303-307Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2011.09.073
Keywords
Nanocomposites; Functional; Semiconductors; Nanocrystalline materials
Funding
- National Natural Science Funds for Distinguished Young Scholars [51025211]
- Shandong Natural Science Fund for Distinguished Young Scholars [JQ200915]
- Foundation of Outstanding Young Scientists in Shandong Province [2006BS04030]
- Tai Shan Scholar Foundation of Shandong Province
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ZnO and ZnO-CuO composite hollow spheres were fabricated by using colloidal carbon spheres as templates. The morphology, structure and chemical composition of the as-prepared samples were investigated using field emission scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The photocatalytic activity of the hollow spherical products was evaluated by photocatalytic degradation of methylene blue (MB) aqueous solution at ambient temperature. The results indicated that the ZnO-CuO composite hollow spheres display higher photocatalytic efficiency than pure hollow ZnO products. The related photocatalytic mechanism was discussed based on the microstructure and properties of the ZnO and ZnO-CuO composite hollow spheres. The facile strategy for the preparation of ZnO-CuO hollow nanostructures can be applicable to the synthesis of other composite hollow spheres. (C) 2011 Elsevier B.V. All rights reserved.
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