化工新型材料

化工新型材料 ›› 2019, Vol. 47 ›› Issue (6) : 184-188.

科学研究

环糊精基石墨烯气凝胶的制备及其气体吸附性能研究

^1,4*

^4*

作者信息 +

Study on preparation and gas adsorption of C-GAs

Liu Kangkai¹, Meng Caiyun², Zheng Xinyao³, Meng Longyue^1,4, Meng Wan⁴

Author information +

文章历史 +

Received		Published
2018-01-10		2019-06-20
Issue Date	Revised Date
2019-07-05	2018-01-10

PDF (2013K)

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。

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.

关键词

石墨烯气凝胶 / 水热法 / 环糊精 / 气体吸附

Key words

graphene aerogel / hydrothermal method / cyclodextrin / gas adsorption

引用本文

引用格式 ▾

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 DOI:

登录浏览全文

4963

注册一个新账户忘记密码

参考文献

原文顺序 | 出版日期 | 本文引用

[1] Sun Z X,Fischer J M T A,Li Q,et al.Enhanced CO₂ photocatalytic reduction on alkali-decorated graphiticcarbonnitride[J].Applied Catalysis B-Environmental,2017,216:146-155.
[2] Meng L Y,Park S J.One-pot synthetic method to prepare high N-doped nanoporous carbons for CO₂ adsorption[J].Materials Chemistry and Physics,2014,143:1158-1163.
[3] 张研,孟龙月,孟万.SBA-15介孔硅片胺基修饰及其CO₂吸附[J].化工新型材料,2017,45(3):131-133.
[4] 曹静,刘博宇,张轩,等.有机胺固载三维蠕虫型介孔SiO₂对CO₂的吸附性能研究[J].化工新型材料,2017,45(9):108-110.
[5] Meng L Y,Park S J.Effect of ZnCl₂ activation on CO₂ adsorption of N-doped nanoporous carbons from polypyrrole[J].Journal of Solid State Chemistry,2014,218:90-94.
[6] Ampomah W,Balch R S,Grigg R B,et al.Co-optimization of CO₂-EOR and storage processes in mature oil reservoirs[J].Greenhouse Gases-Science and Technology,2017,7(1):128-142.
[7] 唐志红,韩卓,杨光智,等.CO₂捕集用具有多级孔结构纳米孔炭的制备[J].新型炭材料,2013,28(1):55-60.
[8] 吕生华,朱琳琳,李莹,等.氧化石墨烯复合材料的研究现状及进展[J].材料工程,2016,44(12):107-117.
[9] Moon I K,Yoon S,Chun K Y,et al.Highly elastic and conductive N-doped monolithic graphene aerogels for multifunctional applications[J].Advanced Functional Materials,2015,25(45):6976-6984.
[10] 刘康恺,曹永慧,沃涛,等.石墨烯及其复合材料的研究进展[J].广州化工,2014,42(23):15-17.
[11] 李娜,马兆昆,陈铭,等.石墨烯/聚酰亚胺复合石墨纤维的结构与性能[J].材料工程,2017,45(9):31-37.
[12] Zhao B,Wang Z X,Gao Y,et al.Hydrothermalsynthesis of layer-controlled MoS₂/graphenecompositeaerogelsfor lithium-ion battery anode materials[J].Applied Surface Science,2016,390:209-215.
[13] Lamberti A,Gigot A,Bianco S,et al.Self-assembly of graphene aerogel on copper wire for wearable fiber-shaped supercapacitors[J].Carbon,2016,105:649-654.
[14] Gholipour-Ranjbar H,Ganjali M R,Norouzi P,et al.Synthesis of cross-linked graphene aerogel/Fe₂O₃ nanocomposite with enhanced supercapacitive performance[J].Ceramics International,2016,42(10):12097-12104.
[15] Sun Y Q,Wu Q,Shi G Q.Supercapacitors based on self-assembled graphene organogel[J].Physical Chemistry Chemical Physics,2011,13(38):17249-17254.
[16] Tang G,Jiang Z G,Li X,et al.Three dimensional graphene aerogels and their electrically conductive composites[J].Carbon,2014,77(10):592-599.
[17] 韩俊儒,孟万,孟龙月.PEI改性氧化石墨烯的制备及其CO₂的吸附[J].广州化工,2016,44(19):114-116.
[18] 张浩,黄新杰,宗志芳,等.基于吸附性能的生物质基多孔活性炭制备方案的响应面法优化[J].材料工程,2017,45(6):67-72.
[19] He K,Qiu F X,Qiu J,et al.Selective adsorption of L-TA/D-TA by beta-cyclodextrin derivative modified with L-tryptophan:isotherm,kinetic and thermodynamics studies[J].Journal of Industrial and Engineering Chemistry,2014,20(4):1293-1300.
[20] Zhu G Y,Xiao Z B,Zhou R J,et al.Study of production and pyrolysis characteristics of sweet orange flavor-beta-cyclodextrin inclusion complex[J].Carbohydrate Polymers,2014,105:75-80.
[21] 徐婷,李云珂,彭少贤,等.石墨烯制备方法及研究进展[J].化工新型材料,2017,45(8):24-25.
[22] 魏建文,林志峰,何泽瑜,等.微孔-介孔材料吸附CO₂的研究进展[J].化工新型材料,2017,45(7):4-6.
[23] 宋涛,廖景明,肖军,等.生物质活性炭微孔和中孔结构对CO₂吸附性能的影响[J].新型炭材料,2015,30(2):156-166.
[24] 张向倩,李文翠,陆安慧.多孔炭材料的设计合成及CO₂吸附分离研究进展[J].新型炭材料,2015,30(6):481-501.