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Hydrothermal synthesis of goethite (α-FeOOH) nanorods in the presence of ethylenediamine:thiourea


Zamiri, Reza and Ahangar, Hossein Abbastabar and Zakaria, Azmi and Zamiri, Golnoosh and Bahari, Hamid Reza and Drummen, Gregor P. C. (2014) Hydrothermal synthesis of goethite (α-FeOOH) nanorods in the presence of ethylenediamine:thiourea. Journal of Nanoparticle Research, 16 (4). art. no. 2333. pp. 1-10. ISSN 1388-0764; ESSN: 1572-896X


Goethite (α-FeOOH) nanorods were synthesized via the hydrothermal method with the assistance of coordinating ligands, i.e. ethylenediamine and thiourea. The homogeneity of the nanorod size distribution increased and the propensity to agglomerate decreased when ethylenediamine and thiourea were used in conjunction; contrary to goethite synthesis in the presence of a single ligand. The type and mode of structure-directing plays a critical role in the morphology of the final products. When using thiourea only or in combination with ethylenediamine, nanorods and nanoparticles of various morphologies were formed. Conversely, when exclusively using ethylenediamine, in addition to the nanorods, fine needles with a significantly smaller diameter were discernible. With all combinations, structurally uniform α-FeOOH nanorods were formed. This improved nanorod formation in the presence of both ligands might be attributed to a more ordered alignment and regular conformation of ethylenediamine molecules in the presence of thiourea and thus less susceptibility to thermal perturbations. Finally, higher concentrations of ligand influence the final product and increases particle aggregation.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: https://doi.org/10.1007/s11051-014-2333-2
Publisher: Springer
Keywords: Ethylenediamine; Goethite; Hydrothermal synthesis; Nanorod; Thiourea
Depositing User: Nabilah Mustapa
Date Deposited: 01 Feb 2016 02:34
Last Modified: 01 Feb 2016 02:34
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1007/s11051-014-2333-2
URI: http://psasir.upm.edu.my/id/eprint/37905
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