Porous Y_2O_3 microcubes:synthesis and characterization

摘要

In this work,a facile route using a simple solvothermal 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) ,en-ergy 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 aver-age 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 S 2 O 82-to Y3+.Y2O3:Eu3+(6.6%) microcubes were also prepared and their photoluminescence properties were investigated.