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二次嫁接法制备氨基修饰的硅基二氧化碳吸附剂

李勇 ,  李磊 ,  闻霞 ,  王峰 ,  赵宁 ,  肖福魁 ,  魏伟 ,  孙予罕

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引用本文: 李勇, 李磊, 闻霞, 王峰, 赵宁, 肖福魁, 魏伟, 孙予罕. 二次嫁接法制备氨基修饰的硅基二氧化碳吸附剂[J]. 燃料化学学报, 2013, 41(9): 1122-1128. shu
Citation:  LI Yong, LI Lei, WEN Xia, WANG Feng, ZHAO Ning, XIAO Fu-kui, WEI Wei, SUN Yu-han. Synthesis of amine modified silica for the capture of carbon dioxide by a twice grafting method[J]. Journal of Fuel Chemistry and Technology, 2013, 41(9): 1122-1128. shu

二次嫁接法制备氨基修饰的硅基二氧化碳吸附剂

    通讯作者: 魏伟, E-mail: weiwei@sxicc.ac.cn。
  • 基金项目:

    国家自然科学基金(20906099) (20906099)

    中国科学院战略性先导科技专项(XDA05010109、XDA05010110、XDA05010204)。 (XDA05010109、XDA05010110、XDA05010204)

摘要: 采用二次嫁接法制备了一系列氨基修饰的SBA-15二氧化碳(CO2)吸附剂,利用XRD、BET、热重、元素分析、电镜、红外等表征手段对吸附剂进行了表征,并通过固定床测量穿透曲线的方法研究了其CO2吸附性能,分别考察了不同制备途径和不同有机胺类型等因素对吸附剂结构以及其CO2吸附性能的影响,同时,还通过多次吸脱附实验考察了吸附剂循环吸脱附的稳定性。结果表明,超声法所制备的聚乙烯亚胺(PEI)嫁接的吸附剂具有最优的CO2吸附性能,在CO2分压为10 kPa,反应温度为25 ℃时,吸附量达到1.72 mmol/g;进行多次循环吸脱附实验后,吸附量未见明显降低,表明吸附剂具有稳定的循环吸附性能。

English

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  • 收稿日期:  2013-02-12
  • 网络出版日期:  2013-04-09
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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