Characterization on the Exfoliation Degree of Graphite Oxide into Graphene Oxide by UV-visible Spectroscopy
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2016年第3期
论文作者：艾凡荣 ZHONG Yu HU Xiaowu YAN Xiluan
文章页码：515 - 518
摘 要：The exfoliation degree of graphite oxide into graphene oxide plays an important role in the massive production method of reduced graphene oxide. It is significant to find a simple and feasible method to analyze the exfoliation degree of graphite oxide. In the present work, graphite oxide was synthesized by a modified Hummers method, and then graphene oxide colloids were obtained by exfoliation of graphite oxide dispersed in de-ionized water. UV-visible spectroscopy was used to characterize the absorption of the graphene oxide colloids, and the concentration of graphene oxide colloids indicated by absorption area of UV-visible spectra was studied. Results show that there is a relatively stable relationship between them, indicating that UVvisible spectroscopy is a potential method for analyzing the exfoliation degree of graphite oxide into graphene oxide.
艾凡荣1，ZHONG Yu1，HU Xiaowu1，YAN Xiluan2
1. School of Mechatronics Engineering, Nanchang University2. School of Environment & Chemical Engineering, Nanchang University
摘 要：The exfoliation degree of graphite oxide into graphene oxide plays an important role in the massive production method of reduced graphene oxide. It is significant to find a simple and feasible method to analyze the exfoliation degree of graphite oxide. In the present work, graphite oxide was synthesized by a modified Hummers method, and then graphene oxide colloids were obtained by exfoliation of graphite oxide dispersed in de-ionized water. UV-visible spectroscopy was used to characterize the absorption of the graphene oxide colloids, and the concentration of graphene oxide colloids indicated by absorption area of UV-visible spectra was studied. Results show that there is a relatively stable relationship between them, indicating that UVvisible spectroscopy is a potential method for analyzing the exfoliation degree of graphite oxide into graphene oxide.
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