氧化石墨烯的制备与改性研究  

Preparation and Modification of Graphene Oxide

作　　者：魏珊珊[1] 杨军明[1] 谢翔[1] 许向阳[2] 汪涛[1] 黄春华[3] 

机构地区：[1]湖南工业大学包装与材料工程学院,湖南株洲412007 [2]长沙矿冶研究院有限责任公司,湖南长沙410012 [3]湖南工业大学土木工程学院,湖南株洲412007

出　　处：《矿冶工程》2012年第3期107-110,共4页Mining and Metallurgical Engineering

基　　金：国家科技支撑计划(2011BAJ03B07);湖南省自然科学基金(10JJ5047);湖南省科技计划项(2011FJ3211);湖南工业大学创新基金(CX1107)资助

摘　　要：用改进的Hummers法制备了氧化石墨,经超声和离心处理,将氧化石墨转化为氧化石墨烯胶体(Graphene Oxide,GO),用十六烷基三甲基溴化铵(CTAB)对GO进行改性制备了改性氧化石墨烯(Modified GO,MGO),采用FT-IR、AFM、TEM、SEM、TGA等手段对材料结构和性能进行了表征,结果表明:所制得的GO胶体具有很好的悬浮稳定性,其厚度小于1.16 nm,表面含丰富的含氧官能团,GO片层呈现出很多皱褶;CTAB与GO之间存在化学键键合作用,改性后GO的热稳定得到一定程度的提高。Graphite oxides were prepared by improved Hummers method. After ultrasonic and centrifugal treatments, the graphite oxides were transferred to graphene oxides （GO）, which was then modified further with cetyltrimethyl ammonium bromide （CTAB） to obtain the product named as modified GO （MGO）. The structures and properties of the raw material, GO and MGO were characterized by FF-IR, AFM, TEM, SEM and TGA. The results showed that the GO sol possessed a good suspension stability, with a thickness less than 1. 16 nm and many oxygen-containing groups on the surface. Some wrinkles could be observed on the GO sheets. There occured chemical bonding between CTAB and GO. The thermal stability of MGO was improved to some extent.

关 键 词：石墨 氧化石墨烯 十六烷基三甲基溴化铵 有机改性 热稳定性 

分 类 号：TM242[一般工业技术—材料科学与工程]