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Abstract

Effect of Cd and N doping on Zinc Sulphide Nanoparticles Synthesised by Mechanochemical Method for the Photodegradation of Brilliant Green Dye

In present study, the removal of carcinogenic Brilliant Green dye was achieved by novel Mechanochemically synthesized Cd and N doped Zinc Sulphide nanoparticles. The morphological characteristic of spherical Zinc Sulphide nanoparticles was determined by SEM. The elemental analysis of Zinc Sulphide was examined by EDX. X-Ray diffraction study revealed the hexagonal wurtzite structure of Zinc Sulphide nanoparticles. The decrease in the crystallite size of Zinc Sulphide was observed from 67 nm to 59 nm on doping with Cd and N. The UV-Visible absorption Spectroscopy has shown narrowing of the band gap from the 3.0 eV to 2.5 eV. Photoluminescence (Pl) spectra of Zinc Sulphide nanoparticles has an emission in blue region at 340 nm due to the recombination of the electron and hole. The Cd and N doped Zinc Sulphide has more degradation efficiency in sunlight as compared to UV light. 50 mg of Cd and Zn doped Zinc Sulphide per 100 ml of 25 ppm of B.G. dye and alkaline pH gave highest degradation of Brilliant green dye within 45 minutes.


Author(s):

Madhuri MB and Lokhande PB



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  • China National Knowledge Infrastructure (CNKI)
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