Journal
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Volume 110, Issue 1, Pages 47-53Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00339-012-7441-1
Keywords
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Funding
- National Basic Research Program of China [51172204, 51072181, 21003105, 51202217, 51172203]
- Ministry of Education of China [20110101110028]
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In this paper, 3D flower-like Au-ZnO microstructures with controlled morphology and dimensions were synthesized by a facile one-step aqueous solution route at room temperature, and the photocatalytic properties of these structures were investigated. The as-prepared flower-like Au-ZnO structures with a diameter of about 3 mu m consisted of many ZnO nanosheets which interacted with each other. These nanosheets, which were successfully decorated by Au NPs, showed an average thickness of 10 nm and a single-crystalline structure with {2-1-10} planar surfaces. The growth process of Au-ZnO structures and the effects of trisodium citrate on the nucleation and growth of ZnO were investigated. The formation of Au NPs in this experiment was discussed too. The Au-ZnO structures showed higher photocatalytic activity than that of pure ZnO.
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