Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 21, Issue 25, Pages 9201-9207Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0jm04503a
Keywords
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Funding
- Natural Science Foundation of China [50672048, 21073107, 50990061]
- China Postdoctoral Science Foundation [20100481245]
- Foundation of Shandong Science & Technology Council [2008GG30003008]
- Postdoctoral Innovation Foundation of Shandong Province [201003077]
- Independent Innovation Foundation of Shandong University [11250070611039]
- Postdoctor Founation of Shandong University [10000080962080]
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Here, we present a facile solid phase method for preparing unique, 3D hexagonal boron nitride (hBN) nanoflowers, which are composed of vertically aligned BN nanoflakes. The growth process of BN nanoflowers is well-controlled by appropriately changing the reaction times and can be explained by a delayed-release mechanism. These BN nanoflowers present good thermal stability and high specific surface area. In addition, the nanoflakes composing the nanoflowers can be easily exfoliated into few-layered graphene-like BN, which is readily dispersible in strong polar organic solvents. By FTIR spectra and theoretical calculation, it is believed that the interaction of BN nanosheet and solvent predominately induces the exfoliation of graphene-like BN. Furthermore, the graphene-like BN film displays superhydrophobicity with a contact angle of 140 degrees.
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