Abstract—In the present study, synthesis of samarium oxide nanoparticles using supercritical water as a reaction medium in batch type reactor was studied. The crystallographic identity and morphology of the synthesized nanoparticles were investigated by X-ray diffraction (XRD) and transmission electron microscopy (TEM), respectively. The XRD patterns indicate that the well-crystallized samarium oxide nanocrystals can be easily obtained under the current synthetic conditions. The effect of four parameters includes temperature‚ reaction time; primary concentration of aqueous solution of samarium (III) nitrate and pH of starting solution on reaction efficiency, particle size and the BET surface area were investigated using 24-1 fractional factorial design. Finally, by employing a regression analysis three models based on effect of significant main variables and their binary interactions were proposed which can predict the percentage of reaction efficiency, particle size and BET surface area with acceptable confidence.
Shahryar Jafari Nejad: Caspian Faculty of Engineering, College of Engineering, University of Tehran, Iran and School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
Aboali Golzary:University of Tehran, Tehran, Iran Corresponding author: Shahryar Jafari Nejad E-mail: shjafarinejad@ut.ac.ir
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Cite: Shahryar Jafari Nejad and Aboali Golzary, "Experimental Design for the Optimization of Hydrothermal Synthesis of Samarium Oxide (Sm2O3) Nanoparticles under Supercritical Water Condition," International Journal of Chemical Engineering and Applications vol. 2, no. 4, pp. 243-247, 2011.
