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Synthesis of Fe–Ni–Ce trimetallic catalyst nanoparticles via impregnation and co-precipitation and their application to dye degradation

  • Ghazaleh Allaedini EMAIL logo , Siti M. Tasirin EMAIL logo and Payam Aminayi
Published/Copyright: February 1, 2016
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Chemical Papers
From the journal Chemical Papers Volume 70 Issue 2

In this study, trimetallic catalysts were prepared via the co-precipitation and impregnation methods. In order to investigate the effect of impregnation on the catalytic activity and crystallite size, a trimetallic catalyst, Fe–Ni–Ce, was prepared through the co-precipitation method in one set of experiments, and cerium was impregnated with the Ni–Fe mixture in the final stage of the preparation in another set. Fourier transform infrared spectroscopy was employed to confirm the formation of trimetallic catalysts and the success of the impregnation method. The Brunauer–Emmett–Teller nitrogen adsorption isotherm exhibits a high specific surface area (approximately 39 m2 g−1) for the nanoparticles obtained by the impregnation method. The crystallography and morphology of the trimetallic catalysts thus prepared were characterised by X-ray diffraction and scanning electron microscopy. UV-VIS spectroscopy and methylene blue dye degradation tests were also performed to investigate the catalytic activity of the synthesised catalysts. The crystalline size was found to be smaller for the catalysts prepared by the impregnation method. In addition, the samples synthesised using the cerium impregnation method showed superior activity in the methylene blue dye degradation test. The effect of the catalyst dosage on dye degradation, as well as the effect of the initial dye concentration on the catalyst activity, was also studied for both methods.

Keywords: Fe–Ni–Ce nanoparticles; trimetallic; catalyst; photodegradation; methylene blue

Acknowledgements.

The authors wish to acknowledge the financial support provided by the CRIM and DIP-2012-05 and FRGS/2/2013/TK05/UKM/02/3 funds, UKM, Malaysia.

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Received: 2015-2-26
Revised: 2015-7-12
Accepted: 2015-8-2
Published Online: 2016-2-1
Published in Print: 2016-1-1

© 2015 Institute of Chemistry, Slovak Academy of Sciences

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https://doi.org/10.1515/chempap-2015-0190
Keywords for this article
Fe–Ni–Ce nanoparticles; trimetallic; catalyst; photodegradation; methylene blue

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