In this work,a facile route using a simple solvothennal reaction and sequential heat treatment process to prepare porous Y2O3 microcubes is presented.The as-synthesized products were characterized by X-ray powder diffraction (XRD),scanning electronic microscope (SEM),energy dispersive spectrometer (EDS),thermogravimetric analysis (TG),and differential thermal analysis (DTA).The thermal decomposition process of the Y2O3 precursor was investigated.SEM results demonstrated that the as-prepared porous Y2O3 microcubes were with an average width of about 20 μm and thickness of about 8 μm.It was found that the morphology of the Y2O3 precursor could be readily tuned by varying the molar ratio of S2O28- to y3+.Y2O3:Eu3+(6.6％) microcubes were also prepared and their photoluminescence properties were investigated.
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