含甲氧基官能团的石墨烯量子点的制备与研究  

Preparation and Study of Graphene Quantum Dot with a Functional Methoxyl Group

作　　者：魏婕[1] 崔博[1] 王宏志[1] 张青红[2] 李耀刚[1] 

机构地区：[1]东华大学材料科学与工程学院,纤维材料改性国家重点实验室,上海201620 [2]东华大学先进玻璃制造技术教育部工程研究中心,上海201620

出　　处：《硅酸盐通报》2016年第5期1558-1562,共5页Bulletin of the Chinese Ceramic Society

摘　　要：采用溶剂热的方法,在200℃的温度下反应10 h制备了石墨烯量子点;并利用透射电子显微镜、荧光光谱、红外光谱等方法分析表征样品。测试结果表明材料具有以下特点：该石墨烯量子点颗粒尺寸在1.5～4 nm;能够均匀的分散在水溶液中;表面含有甲氧基官能团;发射光谱随着激发光的红移而红移;并且具有上转换的发光性能。Graphene quantum dots were prepared by hydrothermal method on the condition of 200 ℃ for10 h. The samples are characterized by TEM,fluorescence spectra,infrared spectra, et al. The experimental results show that the particle size of graphene quantum dot is 1. 5-4 nm. Graphene quantum dots can be uniformly dispersed in aqueous solution. It can be uniformly dispersed in aqueous solution.With the red shift of extraction spectrum,emission spectrum of the graphene quantum dot is red shift too.The material has upconversion luminescence property.

关 键 词：石墨烯量子点 水热法 甲氧基 

分 类 号：TQ127[化学工程—无机化工]