石墨烯纳米复合材料的制备及结构表征

Preparation and Structure Characterization of Graphene-Based Nano Composite Material

制备了含羟基的三亚苯衍生物,2,3,6,7,10,11-六(10′-羟基癸氧基)三亚苯(HHDTP)。利用核磁共振(1H-NMR)对其结构进行了表征。通过Hummers法制备了氧化石墨(GO)。通过三亚苯基团与石墨烯片层之间强烈的π-π相互作用,在GO还原为石墨烯的过程中将HHDTP与石墨烯复合,得到了一种新型纳米复合材料,通过这种方法大大提高了石墨烯在有机溶剂如四氢呋喃(THF)中的分散性。红外光谱(FT-IR)、紫外光谱(UV-vis)及荧光光谱表明,三亚苯基团与石墨烯发生了强相互作用。利用透射电镜(TEM)和扫描电镜(SEM)对复合材料的结构和外观形貌进行了研究。

A triphenylene derivative with hydroxyl,2,3,6,7,10,11-hexa（10′-hydroxy decanoxyl） triphenylene（HHDTP）,was prepared and characterized by 1H nuclear magnetic resonance spectrum（1H-NMR）.Graphite oxide（GO） was prepared by Hummers method.Based on the strong π-π strong interaction between the triphenylene core and graphene pieces,an advanced nano composite material was prepared by compounding graphene and HHDTP during the process of the reduction from GO to graphene.In this way,the stability of graphene diepersed in organic solvent such as tetrahydrofuran（THF）can be greatly improved.The strong interaction between the triphenylene group and graphene was comfirmed by Fourier transform infrared spectrum（FT-IR）,UV-vis and fluorescence spectra.The morphology and structure of the resulting composite material were verified by transmission electron microscope（TEM） and scanning electron microscope（SEM）.