Volume 29, Issue 3 (9-2021)
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M.M. Mohagheghee, Gh. Sedaghati Jamal Abad, Sedaghati Jamal Abad. Synthesis and characterization of structural and optical properties of Dysprosium stannate (Dy2Sn2O7) nanocrystals with pyrochlore phase by hydrothermal method. www.ijcm.ir 2021; 29 (3) :15-15
URL: http://ijcm.ir/article-1-1658-en.html
URL: http://ijcm.ir/article-1-1658-en.html
Abstract: (1471 Views)
In this research, the Dysprosium stannate nanostructured compound (Dy2Sn2O7) is prepared as an important spin ice compound. In the synthesis of this compound, from a solution of 0.1 mol of Tin (IV) chloride pentahydrate (SnCl4; 5H2O) with the addition of Dysprosium (Dy (NO3)3.xH2O) nitrate with molar ratios equal to [Dy / Sn] = 0.1, 0.3, 0.5, 0.7 and 0.1 were used to prepare Dysprosium stannate nanocrystals (Dy2Sn2O7) by hydrothermal method. The effect of Dysprosium (Dy) with different percentages on the formation of Dysprosium stannate composition by annealing at T= 1100 ° C in normal environment was investigated. The structural and optical properties of the formed compound were investigated. The results of X-ray diffraction (XRD) patterns of the sample annealed at T=1100 ° C showed the formation of nanocrystals in the pyrochlore structure of the Dysprosium stannate with [Dy / Sn] =1. The results of visible-ultraviolet (UV-Vis) spectroscopy showed that the energy gap increases with increasing Dysprosium additive. Field Emission Scanning Microscope (FE-SEM) images confirm the formation of Dysprosium stannatenanocrystals with pyrochlore structure.
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