Dysprosium cerate nanostructures:facile synthesis,characterization,optical and photocatalytic proper

来源 :Journal of Rare Earths | 被引量 : 0次 | 上传用户:lightingguo
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A facile approach was developed to prepare Dy_2Ce_2O_7 nanostructures. Dy_2Ce_2O_7 nanostructures were prepared by applying cerium(IV) ammonium nitrate and dysprosium nitrate as Ce and Dy precursors. It was found that the kind of connecting agent, space-filling template and chelating agent were significant factors for the control in shape and size. Transmission electron microscopy(TEM), X-ray diffraction(XRD), diffuse reflectance UV-vis spectroscopy(DR-UV-vis), field emission scanning electron microscopy(FESEM), photoluminescence spectroscopy(PL) and energy dispersive X-ray microanalysis(EDX) techniques were applied to characterize the Dy_2Ce_2O_7 nanostructures and investigate their optical characteristics. To examine the photocatalytic activity of as-produced Dy_2Ce_2O_7 nanostructures, the photocatalytic degradation of erythrosine dye as water pollutant was carried out. The results of the photocatalytic investigations suggest as-obtained nano-sized Dy_2Ce_2O_7 product as a new, proper and efficient candidate for photocatalytic usages under UV illumination. A facile approach was developed to prepare Dy_2Ce_2O_7 nanostructures. Dy_2Ce_2O_7 nanostructures were prepared by applying cerium (IV) ammonium nitrate and dysprosium nitrate as Ce and Dy precursors. It was found that the kind of connecting agent, space-filling template and chelating agent were significant factors for the control in shape and size. Transmission electron microscopy (TEM), X-ray diffraction (diffractive reflectance UV-vis spectroscopy (DR- UV- vis), field emission scanning electron microscopy (FESEM), photoluminescence spectroscopy PL) and energy dispersive X-ray microanalysis (EDX) techniques were applied to characterize the Dy_2Ce_2O_7 nanostructures and investigate their optical characteristics. To examine the photocatalytic activity of as-produced Dy_2Ce_2O_7 nanostructures, the photocatalytic degradation of erythrosine dye as water pollutant was carried out . The results of the photocatalytic investigations suggest as-obtained nano-sized Dy_2Ce_2O_7 product as a new, prop er and efficient candidate for photocatalytic usages under UV illumination.
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