Solution-phase synthesis of CuO hierarchical nanosheets at near-neutral pH and near-room temperature

CuO hierarchical nanosheets have been successfully prepared by a facile solution-phase method. The experimental conditions are very mild: near-neutral pH (7.5) and near-room temperature (30 °C). SEM and TEM images show that the as-synthesized CuO nanosheets are composed of numerous tiny nanoparticle...

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Bibliographic Details
Published in:Materials letters 2007-05, Vol.61 (11), p.2222-2226
Main Authors: Zheng, Likun, Liu, Xinjian
Format: Article
Language:English
Subjects:
Chemical synthesis
Nanostructures
Semiconductors
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Summary:CuO hierarchical nanosheets have been successfully prepared by a facile solution-phase method. The experimental conditions are very mild: near-neutral pH (7.5) and near-room temperature (30 °C). SEM and TEM images show that the as-synthesized CuO nanosheets are composed of numerous tiny nanoparticles. The growth mechanism is discussed by monitoring the whole growth stages via time-dependent SEM examinations. UV–vis spectrum is used to estimate the band gap energy of the hierarchical structures, and the result shows that the calculated band gap energy is ∼ 1.94 eV.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2006.08.063