| 多孔胺基化氧化石墨烯基材料对CO2的吸附性能研究 |
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| 引用本文： | 刘亚敏,彭蕾,苏凤英,王湘湘,黄艺真,林在春,喻晓静,裴义山.多孔胺基化氧化石墨烯基材料对CO2的吸附性能研究[J].化工学报,2019,70(5):2016-2024. |
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| 作者姓名： | 刘亚敏 彭蕾 苏凤英 王湘湘 黄艺真 林在春 喻晓静 裴义山 |
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| 作者单位： | 福建工程学院生态环境与城市建设学院,福建福州350118;福建省室内环境工程技术研究中心,福建福州350118;福建工程学院生态环境与城市建设学院,福建福州,350118 |
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| 基金项目： | 福建省自然科学基金项目(2017J01472，2019J01061133);福建工程学院科研启动基金项目(GY-Z0872) |
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| 摘 要： | 以乙二胺(EDA)、二乙烯三胺(DETA)、四乙烯五胺(TEPA)、聚乙烯亚胺(PEI)等多胺基化合物为表面改性剂，氧化石墨烯(GO)材料为载体，采用嫁接法辅以超声处理制备了表面胺基功能化多孔吸附材料，用于CO2气体的吸附捕集。所制备的多孔吸附材料孔径约为1.35~4.34 nm，比表面积约为98.032~210.465 m2/g。制备的四种吸附材料中，以PEI功能化吸附材料对CO2的吸附容量最大，70℃下达到了1.5 mmol/g，且经过20次循环吸附/脱附实验后，其CO2吸附量基本不变。吸附过程的吸附等温线线型为Ⅰ型优惠型，另外吸附实验数据与Avrami模型模拟结果符合性较好。
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| 关 键 词： | 石墨烯 胺基功能化 吸附 二氧化碳捕集 制备 |
| 收稿时间： | 2019-01-07 |
| 修稿时间： | 2019-03-01 |
Study of CO2 adsorption on amine functionalized graphene oxide porous materials |
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| Yamin LIU,Lei PENG,Fengying SU,Xiangxiang WANG,Yizhen HUANG,Zaichun LIN,Xiaojing YU,Yishan PEI.Study of CO2 adsorption on amine functionalized graphene oxide porous materials[J].Journal of Chemical Industry and Engineering(China),2019,70(5):2016-2024. |
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| Authors: | Yamin LIU Lei PENG Fengying SU Xiangxiang WANG Yizhen HUANG Zaichun LIN Xiaojing YU Yishan PEI |
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| Affiliation: | 1. School of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou 350118, Fujian, China2. Fujian Indoor Environment Engineering Technology Research Center, Fuzhou 350118, Fujian, China |
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| Abstract: | CO2 adsorbents were prepared by chemical grafting ethylenediamine(EDA), diethylenetriamine(DETA), tetraethylenepentamime(TEPA), and polyethyleneimine(PEI) onto surface of graphene oxide combined with the ultrasound treatment. The pore diameter of amine functionalized GO is 1.35—4.34 nm, and the surface area is 98.032—210.465 m2/g. Among the four amine functionalized GO, the PEI functionalized GO has the largest CO2 adsorption capacity, reaching 1.5 mmol/g at 70°C. Besides, the adsorbent also exhibited stable cyclic adsorption-regeneration performance with almost unchanged adsorption capacity after 20 cycles. The type of isothermal adsorption line is type Ⅰ, and the Avrami simulation results agree well with the adsorption experimental data. |
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| Keywords: | graphene oxide amine functionalization adsorption CO2 capture preparation |
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