石墨烯-纳米SiO2气凝胶对巴豆醛的吸附性研究  

Adsorption of Crotonaldehyde by Graphene-Nano-SiO2 Aerogel

作　　者：黄江锋[1] 刘鸿[1] 刘启斌[1] 韦康[1] 白家峰[1] 王弘 黄宇亮[1] 韦祎[1] 兰柳妮 冯守爱[1] HUANG Jiangfeng;LIU Hong;LIU Qibin;WEI Kang;BAI Jiafeng;WANG Hong;HUANG Yuliang;WEI Yi;LAN Liuni;FENG Shouai(Technical Center of China Tobacco Guangxi Industry Co.,Ltd.,Nanning 530001,China)

机构地区：[1]广西中烟工业有限责任公司技术中心,南宁530001

出　　处：《材料导报》2020年第S01期82-85,共4页Materials Reports

基　　金：广西重点研发计划受理项目(2018AB31009)。

摘　　要：为探索新型吸附材料,通过修正Hummers氧化法制备氧化石墨烯,利用葡萄糖作还原剂还原氧化石墨烯,同时作交联剂连接石墨烯纳米片层,再加入SiO2纳米粉体以构筑具有三维多孔结构的石墨烯-纳米SiO2气凝胶。通过扫描电子显微镜和全自动比表面分析仪,对石墨烯-纳米SiO2气凝胶的表面形貌及微观结构进行观察和表征,采用自制吸附测试装置研究其对巴豆醛挥发性有机化合物吸附特征。结果表明,石墨烯-纳米SiO2气凝胶呈三维多孔结构,为吸附提供较大的比表面,复合气凝胶中SiO2纳米粉体最佳的添加量为58.8%,其对巴豆醛最大吸附值为127.1 mg/g。In order to explore new adsorbent materials,graphene oxide was prepared by modified Hummers oxidation method.Furthermore,graphene oxide was reduced by using glucose as the reducing agent and the cross-linking agent to connect graphene nanosheets,and SiO2 nano-powder was added to construct graphene-nano-SiO2 aerogels with the three-dimensional porous structure.The surface morphology and microstructure of graphene-nano-SiO2 aerogels were observed and characterized by scanning electron microscopy and fully automatic surface analyzer.The adsorption characteristics of graphene-nano-SiO2 aerogels on the volatile organic compound crotonaldehyde were studied.The results show that the three-dimensional porous structure of graphene-nano-SiO2 aerogel provides a larger specific surface.The optimum addition amount of SiO2 nano-powder in composite aerogel is 58.8%,and its adsorption value for crotonaldehyde was 127.1 mg/g.

关 键 词：石墨烯 石墨烯-纳米SiO2气凝胶 巴豆醛 吸附特征 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ424[化学工程]