有机胺改性膨润土对二氧化碳气体的吸附性能研究 |
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引用本文: | 陈 超,董宇翔. 有机胺改性膨润土对二氧化碳气体的吸附性能研究[J]. 信阳师范学院学报(自然科学版), 2014, 0(1): 80-83 |
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作者姓名: | 陈 超 董宇翔 |
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作者单位: | ;1.信阳师范学院化学化工学院 |
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摘 要: | 通过物理浸渍法利用有机胺(聚乙烯亚胺)对膨润土进行改性,然后利用X射线衍射、N2吸附脱附实验、元素分析等手段对膨润土改性前后材料的物理化学属性进行表征,最后考察了材料对CO2气体的吸附性能.结果表明,利用有机胺对膨润土进行改性后,材料对CO2气体的吸附量明显增加(从6 mg/g增至47 mg/g),且在循环使用中材料的稳定性良好.
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关 键 词: | 聚乙烯亚胺 膨润土 CO2吸附 |
Studies of Carbon Dioxide Capture by Organic Amine-Modified Bentonite |
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Affiliation: | ,College of Chemistry and Chemical Engineering,Xinyang Normal University |
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Abstract: | Bentonite was modified by an organic amine( polyethylenimine) through a physical impregnation method. Physical and chemical properties of samples were characterized by X-ray diffraction( XRD),N2adsorption-desorption measurement,and elemental analysis. CO2adsorption performances of samples were finally investigated. It was demonstrated that CO2adsorption capacity of bentonite was significantly improved after amine modification from 6 mg /g to 47 mg /g. Furthermore,the amine-modified bentonite was very stable in the cyclic CO2adsorption-desorption experiments. |
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Keywords: | Polyethylenimine bentonite CO2adsorption |
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