Synthesis of porous zinc aluminate spinel (ZnAl sub(2)O sub(4)) by metal-chitosan complexation method

Zinc aluminate (ZnAl sub(2)O sub(4)) particles with a spinel structure were prepared by metal-chitosan complexation method. The solids were obtained by the thermal decomposition of precursor compound of metallic hydroxides mixture and the biopolymer chitosan. X-ray diffraction analysis (XRD), Fourie...

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Bibliographic Details
Published in:Journal of alloys and compounds 2014-03, Vol.588, p.305-309
Main Authors: Stringhini, Fabiane Marconato, Foletto, Edson Luiz, Sallet, Daniela, Bertuol, Daniel Assumpcao, Chiavone-Filho, Osvaldo, Nascimento, Claudio Augusto Oller do
Format: Article
Language:English
Subjects:
Aluminates
Complexation
Fourier transforms
Infrared spectroscopy
Precursors
Scanning electron microscopy
Spinel
Zinc
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Summary:Zinc aluminate (ZnAl sub(2)O sub(4)) particles with a spinel structure were prepared by metal-chitosan complexation method. The solids were obtained by the thermal decomposition of precursor compound of metallic hydroxides mixture and the biopolymer chitosan. X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FTIR), X-ray fluorescence (XRF), scanning electron microscopy (SEM) and N sub(2)-adsorption-desorption isotherms were used for the characterization of the products. The results showed that the ZnAl sub(2)O sub(4) spinel can be obtained by heating the precursor at temperatures above of 500 degree C, resulting in a material with porous structure and large surface area and high purity.
ISSN:0925-8388
DOI:10.1016/j.jallcom.2013.11.078