Enhancement of uranyl adsorption capacity and selectivity on silica sol-gel glasses via molecular imprinting

被引：64

作者：

Dai, S ^{[1
]}

Shin, YS ^{[1
]}

Barnes, CE ^{[1
]}

Toth, LM ^{[1
]}

机构：

[1] UNIV TENNESSEE,DEPT CHEM,KNOXVILLE,TN 37996

来源：

CHEMISTRY OF MATERIALS | 1997年 / 9卷 / 11期

关键词：

D O I：

10.1021/cm970209k

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：

The properties of sol-gel glasses templated with uranyl ions have been investigated. Techniques have been developed to remove the template uranyl ions from silica matrixes to create uranyl-imprinted sol-gel silica glasses. A significant increase in affinity and selectivity of the imprinted sol-gel sorbents over control blanks has been observed while the surface areas of both remain equal. The enhanced capacity and selectivity are tentatively attributed to the change of the binding constant and the modification of the microporous structure of the sol-gel glasses induced by the imprinting technique.

引用

页码：2521 / 2525

页数：5

共 40 条

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