Al-Tamimi Basma H, Jabbar Iman I, Al-Tamimi Haitham M
Department of Materials Engineering, University of Technology, Baghdad, Iraq.
Department of Applied Science, University of Technology, Baghdad, Iraq.
Heliyon. 2019 May 11;5(5):e01682. doi: 10.1016/j.heliyon.2019.e01682. eCollection 2019 May.
Herein, we describe the multi-step synthesis and characterization of monodisperse cubic-structured nanocrystalline diamond particles, showing that they can be easily prepared from graphite flakes under ambient conditions. The above synthesis features the conversion of graphite flakes into graphene oxide (via a modified Hummer's method) and its subsequent transformation into nanodiamond under the action of ultrasonication-induced cavitation, with the nucleation and growth of nanodiamond particles being strongly influenced by the incorporation of a specific metal oxide spacer material. Overall, the developed method is demonstrated to be superior to conventionally used ones, exhibiting the advantages of simplicity, high yield, and upscaling potential.
在此，我们描述了单分散立方结构纳米晶金刚石颗粒的多步合成与表征，表明在环境条件下它们可轻松由石墨薄片制备而成。上述合成过程的特点是将石墨薄片转化为氧化石墨烯（通过改进的Hummer法），并在超声空化作用下将其随后转化为纳米金刚石，纳米金刚石颗粒的成核和生长受到特定金属氧化物间隔材料掺入的强烈影响。总体而言，所开发的方法被证明优于传统使用的方法，具有简单、高产率和放大潜力等优点。
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