石墨烯迷你马达的自组装制备及其乙醇驱动运动和油品吸附性能  

Self-assembly of Graphene Mini-motor and Its Ethanol-Driven Motion and Oil Adsorption Properties

作　　者：赵佳欣 谢亚桥 李杰兰[1] 徐子迪 高峰[1,2] 曲江英 ZHAO Jiaxin;XIE Yaqiao;LI Jielan;XU Zidi;GAO Feng;QU Jiangying(Faculty of Chemistry and Chemical Engineering,Liaoning Normal University,Dalian,Liaoning 116029 China;School of Environment and Civil Engineering,Dongguan University of Technology,Dongguan,Guangdong 523808,China)

机构地区：[1]辽宁师范大学化学化工学院,辽宁大连116029 [2]东莞理工学院生态环境与建筑工程学院,广东东莞523808

出　　处：《应用化学》2019年第10期1202-1210,共9页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金联合基金(U1610114,51972059);东莞理工学院科研启动专项经费(GB200902-31,GC300501-072)资助~~

摘　　要：石墨烯三维(3D)宏观体多集中在厘米尺度并为实心对称结构,且存在“小尺寸”和“低密度”难以协调的矛盾。本文以氧化石墨烯为前驱体、苯胺为交联剂,在电动搅拌下通过剪切力驱动聚集和毛细管力干燥协同自组装制备球状氧化石墨烯水凝胶,经过高温还原得到石墨烯迷你马达。所得石墨烯迷你马达具有尺寸小(直径2~5 mm)、密度低(0.2~0.7 g/cm^3)、内部空心结构以及疏水亲油的性能。上述结构特征赋予其乙醇驱动运动和油品吸附性能。研究表明,充分浸泡乙醇的石墨烯迷你马达在水中可以展现出自转速度3 r/s的无规则快速运动;对水中植物油的饱和吸附量约为794.9 mg/g。The preparation of three dimensional(3D)graphene hydrogels is mostly concentrated on the centimeter scale and solid symmetrical structures while the contradiction between small size and low density exists.The graphene mini-motor constructed by the combination of shear-driven aggregation and capillary force induced drying followed by high temperature reduction using graphene oxide suspension as the precursor and aniline as the crosslinking agent.The graphene mini-motor shows ethanol-driven motion and oil adsorption performance because of its small size(about 2~5 mm in diameter),low density(about 0.2~0.7 g/cm^3),hollow structure and hydrophobic oleophilicity.It is found that the fastest speed of ethanol-driven rotation can reach 3 r/s,and the saturated adsorption capacity is 794.9 mg/g.

关 键 词：石墨烯 迷你马达 自组装 运动 油品吸附 

分 类 号：O611.4[理学—无机化学]