Abstract
This study reports the generation of polyvinyl pyrrolidone (PVP)-capped ZnS nanospheres using the solvothermal method with PVP as a surfactant. Field emission scanning electron microscopic examination of the prepared sample verified its nanosphere form. The elemental composition was confirmed using EDX and elemental mapping. The effectiveness of the synthesized material’s ability to bind mercury was examined using a variety of isotherm and kinetic models, and it was found that the Freundlich isotherm model and pseudo-second-order kinetics, respectively, govern the mercury removal adsorption process. The prepared sample eliminated 95.8% of the mercury from the aqueous solution in 6 h. PVP-capped ZnS nanospheres showed the highest adsorption efficacy of 319 mg/g towards the mercury removal process.
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