石墨烯/银纳米线复合气凝胶的制备及其吸附性能研究  

Adsorption property and preparation of graphene/AgNWs composite aerogel material

作　　者：高亚辉 孙玉宇 许艳杰 王芳 孟巧静 鲁照帅 刘晓煊 Gao Yahui;Sun Yuyu;Xu Yanjie;Wang Fang;Meng Qiaojing;Lu Zhaoshuai;Liu Xiaoxuan(School of Environmental Engineering and Chemistry,Luoyang Institute of Science and Technology,Luoyang 471023)

机构地区：[1]洛阳理工学院环境工程与化学学院,洛阳471023

出　　处：《化工新型材料》2022年第10期257-261,共5页New Chemical Materials

基　　金：国家自然科学基金(21968031);河南省高等学校重点科研项目(22A150048,21A150035);河南省科技攻关项目(222102240012);河南省自然科学基金(212300410207);洛阳理工学院国家自然科学基金预研项目(2018YZ11)。

摘　　要：以氧化石墨烯为前驱体,银纳米线(AgNWs)为支撑单元,采用两步水热法制备了相互搭接、相互支撑的三维多孔石墨烯/AgNWs复合气凝胶,并考察了氧化石墨烯与AgNWs质量比对复合气凝胶吸附性能的影响。傅里叶变换红外光谱仪、扫描电子显微镜、透射电子显微镜和X射线衍射等表征结果表明:AgNWs的支撑作用可有效防止石墨烯片层的堆叠,形成多孔结构。当石墨烯与AgNWs质量比为2∶1时,复合气凝胶对四氯化碳的吸附量高达91.33g/g,复合材料表现出优异的吸附性能,具有潜在的应用价值。Graphene/silver nanowire(graphene/AgNWs) composite aerogels with 3 D porous structure were prepared by two-step hydrothermal method using graphene oxide(GO) as precursor and silver nanowire(AgNWs) as support unit.And, the effect of the mass ratio of GO to AgNWs on the adsorption properties of the aerogels were also investigated.The structure and morphology of the aerogels were characterized by FT-IR,SEM,TEM and XRD.The support of AgNWs can effectively prevent the stacking of graphene sheets and formed more pores.The adsorption capacity of the aerogels to carbon tetrachloride can reach 91.33 g/g when the mass ratio of graphene to AgNWs was 2∶1.Therefore, the aerogels shown excellent adsorption performance and had potential application value.

关 键 词：石墨烯 银纳米线 气凝胶 吸附 

分 类 号：TQ09[化学工程]