Intercalation of salicylic acid into ZnAl layered double hydroxides by ionic-exchange method

被引：0
作者：
Silion , M. [1 ]
Hritcu, D. [1 ]
Popa, M. I. [1 ]
机构：
[1] Tech Univ Iasi, Dept Chem Engn, Fac Chem Engn, Iasi 700050, Romania
来源：
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2009年 / 3卷 / 08期
关键词：
Layered double hydroxide; Ion exchange; Intercalation; Salicylic acid; IN-VITRO RELEASE; HYDROTALCITE; CLAYS;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Salicylic acid was intercalated into ZnAl-layered double hydroxides lamella as an inorganic host by ion exchange technique. The intercalation compound was examined by X-ray diffraction (XRD), FTIR spectroscopy, differential thermal analysis and thermo gravimetric analysis. Powder X-ray diffractogram shows that the basal spacing of the ZnAl layered double hydroxide with salicylate as the intergallery anion expanded from 8.7 angstrom to 15.4 angstrom. The NO3- peak located at 1385 cm(-1) in FTIR spectra was displaced in the sample with peaks characteristic to the intercalated salicylate. The thermal stability of the intercalated salicylic acid is significantly enhanced compared with the pure form before intercalation.
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页码：817 / 820
页数：4
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