Title

A facile polyol-mediated approach to tunable CeO2 microcrystals and their photocatalytic activity

RIS ID

82043

Publication Details

Cheng, G., Xiong, J. & Stadler, F. J. (2013). A facile polyol-mediated approach to tunable CeO2 microcrystals and their photocatalytic activity. Powder Technology, 249 89-94.

Abstract

An efficient solvothermal method was developed to prepare CeO2 microcrystals with different shapes using a polyol-ethanol mixed solvent as the reaction medium. The as-synthesized product was characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and UV-vis diffuse reflectance spectroscopy (DRS). It was found that different kinds or amounts of polyols and the concentration of oleic acid have significant impacts on the well-defined CeO2 microcrystals. The as-synthesized CeO2 microcrystals displayed different optical absorption properties and different photocatalytic performances for the degradation of Rhodamine B (RhB) under UV and visible light irradiation, which was used to model sunlight.

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Link to publisher version (DOI)

http://dx.doi.org/10.1016/j.powtec.2013.07.033