超声辅助镍粉绿色还原制备石墨烯

Ultrasonication-assisted Green Synthesis of Graphene by Nickel Powder Reduction

提出一种室温下利用镍粉还原氧化石墨制备石墨烯的新方法。采用X射线衍射(XRD)、傅里叶红外光谱(FTIR)、拉曼光谱(Raman)、扫描电子显微镜(SEM)和透射电子显微镜(TEM)对氧化石墨还原后的产物进行表征。结果表明:氧化石墨中含氧基团基本被去除,生成的石墨烯的ID/IG达到了1.34,当镍与氧化石墨质量比值为2时,还原效果较为理想。这种方法为低成本、高效、环保、大规模地制备高品质石墨烯提供可能性。

A new method was presented to effectively reduce graphite oxide to graphene with nickel powder at room temperature.The reduced graphite oxide was characterized by X-ray diffraction analysis （XRD）,Fourier transform infrared spectroscopy （FT-IR）,Raman spectroscopy,scanning electron microscope （SEM） and transmission electron microscope （TEM）.The results show that the oxygen functionalities of the graphite oxide were mostly removed,and the intensity ratio （ID/IG） of D band to G band of reduced GO （rGO） is about 1.34.When the mass ratio of Ni and GO is 2,the effect of reduction is relative ideal.This method offers a feasibility for low-cost,effective,environmentally friendly and large-scale production of graphene.