Open AccessThe incorporation of Me-histidine complexes in the structure of FAU-type zeolite: Characterization of the obtained materials
Author(s) -
Dušan Stošić,
Ljiljana Damjanović,
Radmila Hercigonja,
V. Dondur,
Vladislav Rac,
Vesna Rakić
Publication year - 2008
Publication title -
hemijska industrija
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.147
H-Index - 19
eISSN - 2217-7426
pISSN - 0367-598X
DOI - 10.2298/hemind0803125s
Subject(s) - zeolite , histidine , fourier transform infrared spectroscopy , characterization (materials science) , chemistry , infrared spectroscopy , spectroscopy , ion exchange , thermal stability , diffuse reflectance infrared fourier transform , materials science , amino acid , catalysis , chemical engineering , ion , organic chemistry , nanotechnology , biochemistry , physics , quantum mechanics , photocatalysis , engineering
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 a 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 characterization of obtained samples was performed using Diffuse Reflectance Ultraviolet-Visible Spectroscopy (DRUV-Vis), 13C 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