高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (3): 338.

• 论文 • 上一篇    下一篇

H3PO4-i-C3H7OAl-H2NCH2CH2NH2-HOC体系中AlPO4-12分子筛的合成与结构表征

高秋明, 李守贵, 徐如人   

  1. 吉林大学无机合成开放实验室, 长春 130023
  • 收稿日期:1994-07-01 修回日期:1994-09-03 出版日期:1995-03-24 发布日期:1995-03-24
  • 通讯作者: 高秋明,男,24岁,博士研究生.
  • 作者简介:高秋明,男,24岁,博士研究生.
  • 基金资助:

    国家自然科学基金

Synthesis and Characterization of AlPO4-12 Molecular Sieve from H3PO4-i-C3H7OAl-H2NCH2CH2NH2-HOCH2CH2OH System

GAO Qiu-Ming, LI Shou-Gui, XU Ru-Ren   

  1. Key Laboratory of Inorganic Hydrothermal Synthesis, Jilin University, Changchun 130023
  • Received:1994-07-01 Revised:1994-09-03 Online:1995-03-24 Published:1995-03-24

摘要: 以乙二胺为模板剂,采用H3PO4-i-C3H7OAl-H2NCH2CH2NH2-HOCH2CH2OH非水体系,首次合成了AlPO4-12分子筛。研究了反应物配比、酸碱度及磷源、铝源等水热晶化条件对产物物相的影响,用XRD、IR、SEM及TG-DTA等对产物进行了表征,对非水体系生成的AlPO4-12中有机模板剂乙二胺的化学环境进行了研究,认为乙二胺在晶体中以两种环境存在:一部分与骨架作用力较弱;另一部分与骨架以较强的氢键相作用。

关键词: 磷酸铝分子筛, 非水体系, 水热合成, 结构表征, AlPO4-12

Abstract: Hydrothermal crystallization of aluminophosphate molecule sieve(ALPO4-12)was carried out from H3PO4-i-C3H7OAl-H2NCH2CH2NH2-HOCH2CH2OHsystem,Using aluminum triisopropoxide and phosphorous acid (85 wt%)as the aluminum and phosphoroussources.The influences of some main factors(pH,the ratio of P2O5/Al2O3 and the aluminum and phosphorous sources,etc.) on the resulting structure were studied.The product was characterized by means of X-ray powder diffraction,scanning electron mieroscope,infrared spectroscopy,differential analysis and thermogravimetric analysis. The results of investigating the crystallization of AlPO4-12 from non-aqueous system were preliminarily summarized.We found that the organic template,H2NCH2CH2NH2,had two different kinds of environments:one interacted with the skelton by weak hydrogen-bond,the others interacted with the skelton by strong hydrogen-bond.

Key words: Aluminophosphate molecule sieve, AlPO4-12, Non-aqueous system, Hydrothermal synthesis, Characterization

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