复合介孔材料的结构与催化性能
Structure and Catalytic Performance of Composite Mesoporous Materials
摘 要
以三嵌段共聚物P123为模板剂、正硅酸乙酯为硅源,在强酸和水热条件下合成了介孔分子筛SBA-15, 用胺丙基三乙氧基硅烷对分子筛进行功能化。运用X射线衍射、傅里叶红外光谱、N2吸附-脱附以及透射电子显微镜等手段对功能化前后的介孔分子筛进行了表征。以甘氨酸法制备草甘膦工艺为模型反应进行的催化性能分析表明: 该介孔分子筛对该反应具有较高的催化性能。
SBA-15
甘氨酸法
草甘膦
功能化
mesoporous molecular sieves
SBA-15
glycine method
glyphosate
functionalization
Abstract
SBA-15 mesoporous molecular sieves were synthesized by hydrothermal method, using polyglycol-polypropanetriol-polyglycol (P123) as template and tetraethyl orthosilicate as silica source, and subsequently functionalized with 3-chloropropyl-trimethoxysilane and ethylenediamine. They were characterized by means of XRD, FT-IR, N2 adsorption-desorption and TEM before and after functionalization．The analyses of catalytic performance showed that the functionalized SBA-15 was an effective catalyst for the glyphosate synthesis of glycine as a model reaction.
中图分类号 TQ457.2+9
所属栏目 试验与研究
基金项目 江苏省工业高技术研究项目(BG2007025); 镇江市产学研项目(2006013)
收稿日期 2009/12/1
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备注李国芳(1984-),男,硕士研究生。
引用该论文: LI Guo-fang,ZHU Jian-cheng,LI Jing,WU Zhu-dong,HE Kai,CHEN Min. Structure and Catalytic Performance of Composite Mesoporous Materials[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2010, 46(3): 151～154
李国芳,朱建成,李 靖,吴柱东,何 凯,陈 敏. 复合介孔材料的结构与催化性能[J]. 理化检验－物理分册, 2010, 46(3): 151～154
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参考文献
【1】EHRAT R. Process for Preparation of N-Phosphonomethyl Glycine: U.S.A, US 4237065\[P\]. 1980-12-02．
【2】ZHAO Dong-yuan,FENG Jiang-lin,HUO Qi-sheng, et al. Copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores\[J\]. Science, 1998, 279: 548-554．
【3】BARRETT E P, JOYNER L G, HALENDA P P. The determination of pore volume and area distributions in porous substances.Ⅰ. computation isotherms\[J\]. J Am Soc, 1951, 73(1): 373-380．
【2】ZHAO Dong-yuan,FENG Jiang-lin,HUO Qi-sheng, et al. Copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores\[J\]. Science, 1998, 279: 548-554．
【3】BARRETT E P, JOYNER L G, HALENDA P P. The determination of pore volume and area distributions in porous substances.Ⅰ. computation isotherms\[J\]. J Am Soc, 1951, 73(1): 373-380．
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