Hydrothermal synthesis and characterisation of iron cerium oxide nanoparticles for hydrogen sulphide removal application
by Thien Dien To; Huong Giang Thi Nguyen; Tin Chanh Duc Doan; Yusuke Shiratori; Chien Mau Dang
International Journal of Nanotechnology (IJNT), Vol. 15, No. 11/12, 2018

Abstract: Iron oxide (Fe₂O₃) is considered as an excellent catalyst for reduction of hydrogen sulphide (H₂S) due to not only good sulphur adsorption capacity but also low cost. However, the catalytic effect of Fe₂O₃ is deactivated rapidly after running. Doping heteroatoms is assumed to improve its catalytic activity and extend its life time. Among doped heteroatoms, cerium doping on Fe₂O₃ has exhibited an extremely high catalytic activity. In this paper, the iron cerium oxide (FeCeO_x) nanoparticles were synthesised by temperature- and time-controlled hydrothermal method. The FeCeO_x nanoparticles were characterised by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Raman spectroscopy and field emission scanning electron microscopy and energy-dispersive X-ray spectroscopy (FESEM-EDX). The results showed that the average particle size of the obtained FeCeO_x was less than 40 nm and size distribution was narrow. Remarkably, the synthesised nanoscale-sized FeCeO_x compound was not only highly pure but also uniform without traces of Fe₂O₃ or FeOOH at 80°C for 16 h.

Online publication date: Tue, 28-May-2019

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