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化工新型材料  2019, Vol. 47 Issue (6): 184-188    
  科学研究 本期目录 | 过刊浏览 | 高级检索 |
环糊精基石墨烯气凝胶的制备及其气体吸附性能研究
刘康恺1, 孟彩云2, 郑鑫垚3, 孟龙月1,4*, 孟万4*
1.延边大学理学院化学系,延吉133002;
2.山东师范大学化学化工与材料科学学院,济南250000;
3.吉林市特种设备检验中心,吉林132021;
4.延边大学工学院高分子材料与工程,延吉133002
Study on preparation and gas adsorption of C-GAs
Liu Kangkai1, Meng Caiyun2, Zheng Xinyao3, Meng Longyue1,4, Meng Wan4
1.Department of Chemistry,College of Science,Yanbian University,Yanji 133002;
2.School of Chemistry,Chemical Engineering and Materials Science,Shandong Normal University,Jinan 250000;
3.Jilin Special Equipment Inspection Center,Jilin 132021;
4.Department of Polymers Materials and Engineering,College of Engineering,Yanbian University,Yanji 133002
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摘要 以氧化石墨烯(GO)为骨架,β-环糊精(β-CD)为交联剂,采用一步水热法成功制备了结构均匀的环糊精基石墨烯气凝胶(C-GAs)。采用比表面及孔径分析仪对样品的孔隙结构进行了表征,并进一步研究了其孔隙结构对二氧化碳(CO2)、氢气(H2)和甲烷(CH4)气体的吸附性能的影响。结果显示,在β-CD∶GO的质量配合比为0.5∶1条件下,C-GAs拥有较高的比表面积537m2/g和总孔容0.750m3/g,显示了其极好的结构特性,在298℃,1.0Pa条件下,C-GAs对CO2的吸附量达到44.73mg/g,对CH4的吸附量达到6.82mg/g;在77℃,1.0Pa条件下,C-GAs对H2的吸附量达到1.17mg/g,制备的C-GAs对CO2具有较强的吸附能力以及良好的吸附选择性,且制备过程简单、绿色、安全。
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刘康恺
孟彩云
郑鑫垚
孟龙月
孟万
关键词:  石墨烯气凝胶  水热法  环糊精  气体吸附    
Abstract: β-cyclodextrin-based graphene aerogels (C-GAs) were prepared with graphene oxide (GO) as framework and β-cyclodextrin (β-CD) as carbon sourceby using the hydrothermal method.Specific surface analysis instrument revealed the pore structure and gas adsorption of C-GAs.The results indicated that C-GAs had higher specific surface areas of 537m2/g and total pore volumes of 0.750cm3/g.The prepared C-GAs with the mass ratio of 0.5(β-CD/GO) exhibited the highest adsorption capacity of 44.73mg/g for CO2,6.82mg/g for CH4 and 1.17mg/g for H2,respectively.C-GAs showed the stronger adsorption capacity and excellent adsorptive selectivity.The craft process was convenient,green and safe,which will be utilized in methane treatment,beverage processing,agricultural product protection and supercritical extraction.
Key words:  graphene aerogel    hydrothermal method    cyclodextrin    gas adsorption
收稿日期:  2018-01-10                出版日期:  2019-06-20      发布日期:  2019-07-05      期的出版日期:  2019-06-20
基金资助: 国家自然科学基金(51703192)
通讯作者:  孟龙月(1983-),女,博士,副教授,主要从事碳纳米材料的制备与研究。
孟万(1968-),男,博士,教授,主要从事高分子纳米材料的制备与研究。   
作者简介:  刘康恺(1995-),男,硕士,主要从事碳纳米材料的制备与研究。
引用本文:    
刘康恺, 孟彩云, 郑鑫垚, 孟龙月, 孟万. 环糊精基石墨烯气凝胶的制备及其气体吸附性能研究[J]. 化工新型材料, 2019, 47(6): 184-188.
Liu Kangkai, Meng Caiyun, Zheng Xinyao, Meng Longyue, Meng Wan. Study on preparation and gas adsorption of C-GAs. New Chemical Materials, 2019, 47(6): 184-188.
链接本文:  
http://www.hgxx.org/CN/  或          http://www.hgxx.org/CN/Y2019/V47/I6/184
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