吉林大学学报(理学版) ›› 2026, Vol. 64 ›› Issue (5): 1203-1206.

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澄清溶液法制备钠A分子筛晶体

刘云凌1,2, 徐跃华1    

  1. 1. 吉林大学 化学学院, 长春 130012; 2. 吉林大学 无机合成与制备化学国家重点实验室, 长春130012
  • 收稿日期:2026-06-17 出版日期:2026-09-26 发布日期:2026-09-26
  • 通讯作者: 徐跃华 E-mail:xuyueh@jlu.edu.cn

Synthesis of Na-A Zeolite in a Clear Solution

Liu Yunling1,2, Xu Yuehua1   

  1. 1. College of Chemistry, Jilin University, Changchun 130012, China; 2. State Key Laboratory of Inorganic Synthesis & Preparative Chemistry, Jilin University, Changchun 130012, China
  • Received:2026-06-17 Online:2026-09-26 Published:2026-09-26

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摘要： 利用[SiO2(OH)2]2-和[Al(OH)4]-极易发生缩合反应, 而[Al(OH)4]-和[Al(OH)4]-不发生缩合反应的特性, 将[SiO2(OH)2]2-处于含有大量[Al(OH)4]-的溶液中, 使其发生类似有机化学反应中封端效应的封端反应, 尽管溶液中含有大量类似[Si(O—Al—(OH)3)4]4-的离子基团, 却无法发生进一步的缩合反应, 由于该类离子基团无法进一步长大生成沉淀, 因此可制备用于合成钠A分子筛晶体的澄清反应溶液. 利用这种澄清的反应溶液体系, 可在玻璃以及多孔氧化铝陶瓷管等基体上制备出质量优良的钠A分子筛晶体薄膜. 

关键词: 钠A分子筛, 分子筛薄膜, 硅铝酸盐, 澄清溶液, 水热合成

Abstract: Here it is reported that Na-A zeolite can be synthesized by a clear solution. This synthesis method is based on the fact that the condensation reaction of [SiO2(OH)2]2- and [Al(OH)4]- occurs readily, however, the condensation reaction of [Al(OH)4]- and [Al(OH)4]- does not occur. A solution can be prepared in which [SiO2(OH)2]2- ions are surrounded by a large number of [Al(OH)4]- ions, so that the condensation reactions of [SiO2(OH)2]2- and [Al(OH)4]- produce a large number of [Si(O—Al—(OH)3)4]4- ions, but these [Si(O—Al—(OH)3)4]4- ions are not condensed ulteriorly, so no sediment is formed. In this way, a clear solution is obtained for the synthesis of Na-A zeolite. A high-quality film of Na-A zeolite on the glass or on the porous alumina ceramic tube can be prepared by using this clear solution. 

Key words: Na-A zeolite, zeolite film, aluminosilicate, clear solution, hydrothermal synthesis

中图分类号: 

  • O614
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