| 氨基修饰的介孔分子筛对CO_2的吸附性能 |
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| 引用本文： | 付新,李军平,赵宁,肖福魁,魏伟,孙予罕.氨基修饰的介孔分子筛对CO_2的吸附性能[J].石油化工,2008,37(10):1021. |
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| 作者姓名： | 付新 李军平 赵宁 肖福魁 魏伟 孙予罕 |
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| 作者单位： | 1. 中国科学院,山西煤炭化学研究所煤转化国家重点实验室,山西,太原,030001;中国科学院,研究生院,北京,100049
2. 中国科学院,山西煤炭化学研究所煤转化国家重点实验室,山西,太原,030001 |
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| 基金项目： | 中国科学院知识创新工程青年人才领域前沿项目资助(2007YQNRC07) |
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| 摘 要： | 以氨丙基三乙氧基硅烷(APTS)为修饰剂,利用嫁接方法对 MCM-41和 SBA-15分子筛进行氨基修饰,采用 X 射线衍射、傅里叶变换红外光谱、热重和 CO_2程序升温脱附等于段表征了材料的结构和对 CO_2的吸附、脱附性能。实验结果表明,APTS嫁接到了两种分子筛的孔道内;氨基修饰的分子筛的孔道仍高度有序,对CO_2的吸附能力有明显的改善,MCM-41和 SBA-15分子筛修饰后的吸附量分别为47.5,40.5 mg/g。氨基修饰的分子筛对CO_2的吸附形态主要为双齿碳酸氢盐、双齿碳酸盐、单齿碳酸氧盐和单齿碳酸盐。
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| 关 键 词： | 二氧化碳吸附 吸附剂 MCM-41分子筛 SBA-15分子筛 介孔材料 修饰剂 |
CO2 Adsorption on Mesoporous Molecular Sieves Modified by Aminosiliane |
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| Fu Xin,Li Junping,Zhao Ning,Xiao Fukui,Wei Wei,Sun Yuhan.CO2 Adsorption on Mesoporous Molecular Sieves Modified by Aminosiliane[J].Petrochemical Technology,2008,37(10):1021. |
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| Authors: | Fu Xin Li Junping Zhao Ning Xiao Fukui Wei Wei Sun Yuhan |
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| Abstract: | Novel CO_2 adsorbents were prepared by grafting aminosilanes on mesoporous MCM-41 and SBA-15 molecular sieves.The NH_2-functional group in aminopropyltriethoxysilane could provide CO_2 adsorption sites.The prepared adsorbents were characterized by means of XRD,FTIR,TG and CO_2-TPD.The characterization confirmed that aminosilianes were grafted on surface of the channels in mesoporous molecular sieves.CO_2 adsorption capacity of amine-grafted MCM-41 and SBA-15 increased to 47.5 and 40.5 mg/g at room temperatu... |
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| Keywords: | carbon dioxide adsorption adsorbent MCM-41 molecular sieve SBA-15 molecular sieve mesoporous material modifying agent |
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