Nanomaterials and System Lab, Department of Mechanical System Engineering, Jeju National University, Jeju 690-756, Republic of Korea.
Ultrason Sonochem. 2013 Mar;20(2):644-9. doi: 10.1016/j.ultsonch.2012.09.007. Epub 2012 Sep 27.
A facile sonochemical route for the synthesis of graphene nanosheets via reduction of graphene oxide (GO) has been reported. The synthesized graphene sheets are characterized using UV-vis spectra, Fourier transform infra-red (FT-IR) spectra, transmission electron microscope, X-ray photoelectron spectra (XPS) and Raman spectroscopic techniques. The UV-vis spectroscopy results showed that the absorption peak was red shifted due to the reduction of GO into graphene. FT-IR and XPS spectra revealed the removal of oxygenated functional groups in graphene after the reduction process. Raman spectra confirmed the restoration of new sp(2) carbon domains in graphene sheets after the reduction. The sonochemical approach for the synthesis of graphene nanosheets is relatively fast, cost-effective and efficient as compared to other methods.
通过氧化石墨烯（GO）的还原，报道了一种用于合成石墨烯纳米片的简便声化学方法。使用紫外可见光谱、傅里叶变换红外（FT-IR）光谱、透射电子显微镜、X 射线光电子能谱（XPS）和拉曼光谱技术对合成的石墨烯片进行了表征。紫外可见光谱结果表明，由于 GO 还原为石墨烯，吸收峰发生红移。FT-IR 和 XPS 谱表明还原过程中去除了石墨烯中的含氧官能团。拉曼光谱证实了还原后石墨烯片中新的 sp(2) 碳畴的恢复。与其他方法相比，超声化学法合成石墨烯纳米片具有相对较快、经济高效的特点。
