SPECTROSCOPIC STUDY OF SOL-GEL SILICA DOPED WITH IRON IONS

被引：37

作者：

LOPEZ, T

MENDEZ, J

ZAMUDIO, T

VILLA, M

机构：

[1] Universidad Autónoma Metropolitana, Depto. de Química, Iztapalapa

来源：

MATERIALS CHEMISTRY AND PHYSICS | 1992年 / 30卷 / 03期

关键词：

D O I：

10.1016/0254-0584(92)90218-W

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Silicas doped with different amounts of iron are prepared by the sol-gel method. The solids received different thermal treatments. UV-VIS and IR spectra are analyzed in order to study the Fe(III) complexes formed in the silica network and deposited on the solid surface. At 300-degrees-C the humidity water and the solvent are evaporated. At 600-degrees-C the water coordinated to the Fe(III) is eliminated, causing a structural rearrangement of the silica.

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页码：161 / 167

页数：7

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