高等学校化学学报

高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (3): 345.

• 论文 • 上一篇    下一篇

杂原子Me-VPI-5(Me＝Mg,Ti,Sn,Si)相转变及其对Eu(Ⅲ)光谱结构的研究

孙家跃1, 杜海燕1, 庞文琴2, 石春山3   

  1. 1. 抚顺石油学院石油化工系、应用化学系, 抚顺 113001;
    2. 吉林大学化学系;
    3. 中国科学院长春应用化学研究所稀土化学与物理开放实验室
  • 收稿日期:1995-03-03 出版日期:1996-03-24 发布日期:1996-03-24
  • 通讯作者: 孙家跃,男,41岁,博士,教授.
  • 作者简介:孙家跃,男,41岁,博士,教授.
  • 基金资助:

    国家自然科学基金;辽宁省科委博士科研启动基金

The Phase Transitions of Hetero Atoms Substituted Molecular Sieves Me-VPI-5(Me=Mg,Ti,Sn,Si)and Their Influence on Spectra structures of Eu(Ⅲ)Ion

SUN Jia-Yao1, DU Hai-Yan1, PANG Wen-Qin2, SHI Chun-Shan3   

  1. 1. Department of Petrochemical Engineering, Fushun Petroleum Institute, Fushun 113001;
    2. Department of Chemistry, Jilin Uniuersity, Changchun;
    3. Laboratory of Rare Earth Chemistry and Physics, Changchun Institue of Applied Chemistry Academa Sinica, Changchun
  • Received:1995-03-03 Online:1996-03-24 Published:1996-03-24

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摘要： 用水热同晶置换法合成了杂原子磷酸铝分子筛Me-VPI-5(Me=Mg,Ti,Sn,Si).通过水相离子交换法掺杂稀土离子,考察了高温和高压下的相变行为。讨论了相变过程对稀土离子光谱的影响。随着温度升高,Eu(Ⅲ)Mg-VPI-5先转变为Eu(Ⅲ)-AlPO4-8,然后又转变成致密的磷石英相。压力对Eu(Ⅲ)光谱结构具有显着影响。随着压力增加,Eu(Ⅲ)光谱结构发生规律性变化。

关键词: 分子筛, 相转变, 铕离子, 荧光光谱

Abstract: The hetero atom substituted aluminophosphate molecular sieves Me-VPI-5(Me=Mg,Ti,Sn,Si)were synthesized hydrothermally.Rare earth ions originally doped into these microporous materials by aqueous solution ion exchange procedures.The phase transitions of the microporous materials are investigated by high-temperature and high-pressure experimental techniques,The influence of the phase transitions on the rare earth ions'spectral structures is discussed.With the increase of temperature,Eu(Ⅲ)Mg-VPI-5 is converted into Eu(Ⅲ)Mg-AlPO4-8,then into tridymite phase.The pressure has a notable influence on Eu(Ⅲ) ion's spectral structures.The spectral structures have changed regularly with the increase of pressure.

Key words: Molecular sieve, Phase transition, Europium ion, Luminescence spectrum

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