Fabrication and characteristics of reduced graphene oxide produced with different green reductants

• 作 者: XiaomeiShi;ChangyanXu;AnJi;LinaShi;YuqingZhao;ChenZhou;YunqiCui;
• 机 构: Packaging Engineering Department,Nanjing Forestry University,Nanjing,Jiangsu,China
• 出 处: 第六届全国生物质材料科学与技术学术研讨会
• 发表日期: 2015年期

　　There has been an upsurge of green reductants for the preparation of graphene materials taking consideration of the protection to the environment and human body in recent years.In this paper,reduced graphene oxides(RGOs)were prepared by chemical reduction of graphene oxide(GO)with three green reductants,L-ascorbic acid(L-AA),D-glucose(D-GLC)and tea polyphenol(TP),and compatively characterized by X-ray photoelectron spectroscopy(XPS),Fourier transform infrared(FTIR)spectra,Raman spectra and electrical conductivity analysis.Results showed that all the three reductants were effective to remove oxygen-containing functional groups in GO and restore the electrical conductivity of the obtained RGO.The RGO sample with L-ascorbic acid as a reductant had the highest electrical conductivity(9.8 S?cm-1)among all the obtained RGO samples.The possible mechanisms of GO reducing and RGO dispersing in water were also proposed.It is the good dispersibility of reduced graphene oxide in water that will facilitate the further use of the obtained reduced graphene oxide in composite materials and conductive ink.