Hydrothermal synthesis of sodium zirconium silicates and characterization of their properties

被引：47

作者：

Bortun, AI ^{[1
]}

Bortun, LN ^{[1
]}

Clearfield, A ^{[1
]}

机构：

[1] TEXAS A&M UNIV,DEPT CHEM,COLLEGE STN,TX 77843

来源：

CHEMISTRY OF MATERIALS | 1997年 / 9卷 / 08期

关键词：

D O I：

10.1021/cm9701419

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

By studying reactions in the system Zr(OC3H7)(4)-silicic acid (Na2SiO3, Na2Si3O7)-NaOH-H2O under mild hydrothermal conditions (180-190 degrees C) the formation of three novel layered sodium zirconium silicates, Na2Zr5Si2O15. 3H(2)O, Na2Zr5Si2O15. 4H(2)O, and Na2ZrSi3O9 . 3H(2)O, and five other compounds: Na4Zr2Si3O12, Na3HZrSi2O8, Na4Zr2Si5O16. H2O, Na4ZrSi3O10, and Na2ZrSi3O9 . 2H(2)O, have been found. All the synthesized materials were characterized by elemental analysis, TGA, X-ray, IR, and Si-29 MAS NMR spectroscopy. The ion-exchange behavior of sodium zirconium silicates toward alkali, alkaline-earth, and some di-and trivalent metal cations was studied.

引用

页码：1854 / 1864

页数：11

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