Different morphologies of bismuth sulphide (Bi 2 S 3 ) nanoparticles (NPs) were synthesized at room temperature using wet chemical method. The properties of bismuth sulphide (Bi 2 S 3 ) nanoparticles can be controlled by different amounts of Mn 2+ dopant. The synthesized nanoparticles were characterized by several techniques, such as high resolution scanning electron microscopy (HR-SEM), X-ray diffraction (XRD), transmission electron microscopy (TEM), electron diffraction (ED), and energy dispersive X-ray spectroscopy (EDS). The nanoparticles (Bi 2 S 3 ) were found to have excellent activity for the UV light assisted decolorization of methyl violet dye and also helped to speed up the redox reaction of Fe(CN) 3− 6 and S 2 O 2− 3 . The reactions were monitored through UV-Vis spectroscopy.
We have reported the synthesis of cubic (zinc blende) phase ZnS: Ni 2+ nanoparticles using a simple wetchemical method. Synthesized ZnS: Ni 2+ nanoparticles had been characterized by X-ray diffraction (XRD) and Energy Dispersive X-ray (EDX) analysis. Surface morphologies were studied using Scanning Electron Microscopy (SEM). Fourier Transform Infrared (FTIR) spectra of selected samples were also carried out to confirm the presence of capping agent on the surface of the material. We have demonstrated that various morphologies like spherical, tetrapods, sheet and long-armed multipods are emerged by simple chemical route without any vigorous reaction parameters and changing the concentration of dopant ions only. The probable mechanism for such morphologies has also been suggested.
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