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《国际智能和纳米材料杂志(英文)》
>Photocatalytic activity,nanostructure and optical properties of 3D ZnS urchin-like via hydrothermal method
Photocatalytic activity,nanostructure and optical properties of 3D ZnS urchin-like via hydrothermal method
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摘要
In the present research,the fabrication and characterization of ZnS urchin-like nanoparticles(ULNPs)via simple,template free and onestep hydrothermal method are reported.Zinc acetate dihydrate,thiosemicarbazide and ethylenediamine are utilized as precursors.Nanostructure characterization of three-dimension ZnS ULNPs is specified by X-ray diffraction(XRD),scanning electron microscopy(SEM),energy dispersive x-ray spectroscopy(EDX),transmission electron microscopy(TEM),Fourier transforminfrared(FT-IR)andultraviolet-visible(UVVis)spectroscopy.The photocatalytic activity of ZnS NPs is determined bymeasuring the degradation of an organic dye methylene orange(MO)under UV-irradiation.The lattice characteristics such as nanocrystallite size,strain,stress,and deformation energy density are specified using Williamson-Hall(W-H)and Halder-Wagner(H-W)analysis with different considerations about the isotropic nature of the crystal.XRD analysis reveals that ZnS NPs are hexagonalwurtzite phase.The shape and mean diameter of NPs are demonstrated by TEM and SEM techniques to be 3D urchin-likewith an average size of 60 nm.N2 adsorption-desorption and UV-Vis spectroscopies are utilized to specify the optical characteristics such asmean pore diameter,total pore size,and BET special surface area.The band gap of fabrication ZnS NPs has been evaluated from the Tauc equation and absorption edge to be 3.84 eV.
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机译：measurement of optical activity (circular birefringence and circular dichroism) for single crystals of cobalt complex and protein crystal by the Extended HaUp method
