氧化石墨烯的合成及组装

摘要

Graphene oxide was synthesized using modified Hummer’s method and assembled in solution and solid surface.The FT-IR、UV-Vis、TGA and SEM were employed to characterize the obtained Graphene oxide and its assemblies.FT-IR showed that the Graphene oxide has oxygen-containing functional groups such as hydroxy,carboxyl,epoxide and carbonyl group.UV-Vis spectra imply the influence of particle size and the pH values on the Graphene oxide dispersion.TGA measurements further confirmed the existence of these functional groups in Graphene oxide.SEM observation showed the micro morphology of the Graphene assembly from solution.%用改良的Hummer法制备了氧化石墨烯并对氧化石墨烯在溶液及玻璃表面进行了组装。采用傅里叶红外光谱（FT-IR）、热重分析（TGA）、电阻率仪、紫外可见分光光度计（UV-Vis）对氧化石墨烯及组装体系进行了表征,并用扫描电子显微镜对组装后物质的表面进行了观察。FT-IR测试表明氧化石墨烯含有羟基、羧基、环氧以及羰基等含氧官能团。UV-Vis测试表明粒径和溶剂的pH对氧化石墨烯在液相中分散性的影响。TGA测试进一步证明了氧化石墨烯含有大量含氧官能团。SEM观察揭示了石墨烯组装体的微观形貌。