The incorporation of Me-histidine complexes in the structure of FAU-type zeolite: Characterization of the obtained materials

被引：0

作者：

Stosic, Dusan ^{[1
]}

Damnjanovic, Ljiljana ^{[1
]}

Hercigonja, Radmila ^{[1
]}

Dondur, Vera ^{[1
]}

Rac, Vladislav ^{[2
]}

Rakic, Vesna ^{[2
]}

机构：

[1] Univ Belgrade, Fac Phys Chem, Belgrade 11001, Serbia

[2] Univ Belgrade, Fac Agr, Zemun, Serbia

来源：

HEMIJSKA INDUSTRIJA | 2008年 / 62卷 / 03期

关键词：

metaloenzymes; histidine; transition metals; Y-zeohte; catalysis;

D O I：

10.2298/HEMIND0803125S

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

L-histidine, a naturally occurring amino acid, was incorporated inside the supercages of FAU type zeolite in a form of Me-complex entity (Me = Cu(II), Zn(II), Fe(III)). The preparation was done either by ion-exchange procedure, or previously prepared Me-histidine complex was incorporated into the alpha cages of Y zeolite by occlusion. The preparation procedure was found to be a very important factor, as well as the amount of metal complex loaded on the zeolite. The characterisation of obtained samples was performed using Diffuse Reflectance Ultraviolet-Visible Spectroscopy (DRUV-Vis), C-13 MAS NMR and Infrared Spectroscopy (FTIR). It was noticed that 1-hostidine interacted with the zeolitic framework, and with the extra-framework cation, as well. The results obtained by TG-DSC/MAS technique, revealed that. the thermal stability of incorporated histidine was increased, in comparison with that one of pure histidine.

引用

页码：125 / 130

页数：6

共 17 条

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