Samarium carbonate and samarium oxide; synthesis, characterization and evaluation of the photo-catalytic behavior

Nano-sized Sm 3+ carbonate particles were prepared through a chemical precipitation reaction in aqueous media. The reaction involved admixing streams of Sm 3+ ion solutions with CO 3 2− solutions. The synthesis route was optimized through the Taguchi robust statistical design and effective parameter...

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Veröffentlicht in:Journal of materials science. Materials in electronics 2017-04, Vol.28 (7), p.5574-5583
Hauptverfasser: Rahimi-Nasrabadi, Mehdi, Pourmortazavi, Seied Mahdi, Aghazadeh, Mustafa, Ganjali, Mohammad Reza, Sadeghpour Karimi, Meisam, Novrouzi, Parviz
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Sprache:eng
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Zusammenfassung:Nano-sized Sm 3+ carbonate particles were prepared through a chemical precipitation reaction in aqueous media. The reaction involved admixing streams of Sm 3+ ion solutions with CO 3 2− solutions. The synthesis route was optimized through the Taguchi robust statistical design and effective parameters like the concentration of the ion solutions, flow rate of Sm 3+ feed, and reactor temperature on the size of synthesized samarium carbonate particles were evaluated based on an orthogonal array (OA 9 ), which revealed that under optimized synthesis conditions samarium carbonate particles as small as 35 nm could be produced. By treating the product in a further thermal decomposition step, 56 nm Sm 2 O 3 nanoparticles were also produced. The chemical composition and structure of the nano-sized samarium carbonate and oxide particles were studied through X-ray diffraction, scanning electron microscopy, thermal analysis and FT-IR spectroscopy and the synthsized nano-particles were evaluated in terms of their photo-catalytic effects in the UV-induced degradation of methyl orange (MO).
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-016-6224-4