摘要
利用液相化学氧化法制备氧化石墨,通过水合肼还原氧化石墨制备石墨烯.采用X射线衍射分析、激光拉曼光谱和透射电子显微镜等测试方法,对石墨烯材料的结构和吸附性能进行分析表征.结果表明,通过氧化石墨还原法制得的石墨烯晶体结构完整性有所降低;石墨烯对极性较大的有机染料亚甲基蓝、甲基橙和罗丹明B的吸附率都在95%以上,对极性较小的有机污染物苯酚和氯苯酚的吸附能力较弱.
The graphite oxide（GO） was prepared by oxiding purified natural graphite via Hummer＇s method,and graphene was obtained by reduction of graphite oxide prepared.The structure of graphene was analyzed and characterized by X-ray diffraction analysis（XRD）,laser Raman spectroscopy（LRS） and transmission electron microscopy（TEM）.The most intense feature is the G peak at 1580 cm-1 in the Raman spectrum of graphene,corresponding to the first-order scattering of E2g mode.And there is also a D peak near 1350 cm-1 possibly due to the extensive oxidation.The adsorption experimental results showed the desirable adsorption ability of graphene on the methylene blue,methyl orange and rhodamineB,and adsorption rates were above 95%.The adsorption experiment indicated the absorption capacity of graphene on phenol and chlorophenol was weak.
出处
《深圳大学学报（理工版）》
EI
CAS
北大核心
2011年第5期436-439,共4页
Journal of Shenzhen University(Science and Engineering)
基金
国家自然科学基金资助项目(20925725)
中央高校基本科研业务费专项资金资助项目(2011QN138)~~
