Journal
RSC ADVANCES
Volume 4, Issue 67, Pages 35614-35619Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra04688a
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Funding
- National Natural Science Foundation of China [21001064]
- Natural Science Foundation of Jiangsu Province [BK2010487]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20103219120045]
- NUST [2011ZDJH27]
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Hierarchically structured nickel oxide microspheres were acquired through calcination of the hydroxide precursor at 400 degrees C for 4 h. The phase and morphology of the products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and field emission scanning electronic microscopy (FE-SEM). The synthesized products are pure phase with high crystallinity. And the hierarchical structures assembled from the nanoflakes with a thickness of 50 nm have a considerably large specific surface area (165.3 m(2) g(-1)). The adsorption capacity and photocatalytic activity of the hierarchically structured NiO were evaluated using direct fast bordeaux as target pollutant, indicating a high decolorization rate. The effect of pH on the decolorization rate was also analyzed. The electrochemical behavior of NiO as anode material for lithium ion batteries was investigated. The excellent photocatalytic and electrochemical performances of NiO microspheres can be attributed to the unique hierarchical structures.
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