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聚乙烯亚胺改性笼型介孔分子筛的制备、表征及其对二氧化碳的吸附行为 被引量：5

Polyethylenimine-impregnated cage-like mesoporous silica: synthesis, characterization and carbon dioxide adsorption behavior
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摘要 利用物理浸渍方法制备了聚乙烯亚胺(PEI)修饰的FDU-12笼型介孔二氧化硅分子筛,并利用傅里叶变换红外光谱(FTIR)、小角X-射线散射(SAXS)、热失重分析(TGA)、元素分析、扫描电子显微镜(SEM)、透射电子显微镜(TEM)和氮气吸附等温实验等方法对其结构进行表征。研究了PEI的引入对二氧化碳吸附性能的影响,发现由于PEI发生聚集堵塞孔口,实际上引起了二氧化碳吸附活性位点的减少,所以其在常温常压下对二氧化碳的吸附能力没有提高,反而明显降低。 Polyethylenimine-rnodified cage-like mesoporous silica of FDU-12 has been synthesized by impregnation and characterized by Fourier transform infrared （FTIR） spectra, small angle X-ray scatter （SAXS）, thermogravimetric analyzer （TGA）, element analysis, field emission scanning electron microscopy （FE-SEM）, transmission electron microscopy （TEM） and nitrogen sorption isotherm. A comparison of CO2 uptake between modified and unmodified FDU 12 showed that the presence of PEI did not improve the CO2 adsorption efficiency due to the increased diffusion resistance.
作者 吉亚丽 梁凯 龚静华
机构地区 东华大学材料科学与工程学院 东华大学化学化工与生物工程学院
出处 《中国科技论文》 CAS 北大核心 2013年第3期192-195,共4页 China Sciencepaper
基金 高等学校博士学科点专项科研基金资助项目(20090075120013)
关键词 材料物理与化学 介孔 二氧化硅 二氧化碳 吸附 material physics and chemistry mesoporous silica carbon dioxide adsorption
分类号 TQ424.25 [化学工程] X511 [环境科学与工程—环境工程]
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参考文献13

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同被引文献44

  • 1史娜,王雷,仇祝峰,田恒记.油气管道腐蚀机理分析及防腐措施综述[J].中国石油和化工标准与质量,2012,32(1):230-230. 被引量：7
  • 2费维扬,艾宁,陈健.温室气体CO_2的捕集和分离——分离技术面临的挑战与机遇[J].化工进展,2005,24(1):1-4. 被引量：174
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中国科技论文
2013年 第3期

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