Selective Removal of Zinc, Cadmium, and Lead from Industrial Effluents using Bimetallic Nanoparticles Synthesized via Green Route
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The biocompatible qualities of nanoparticles, synthesized by plant medium, have garnered a considerable attention. Nanoparticles made of two different metals (thus the name "bimetallic") are crucial in the process of purifying wastewater. Adsorption is enhanced for bimetallic nanoparticles due to their larger surface area as compared to the monometallic nanoparticles. The current study examined the adsorption characteristics of Mg-Bi bimetallic nanoparticles and their efficacy in removing cadmium, lead, and zinc from wastewater. The synthesis of bimetallic nanoparticles from natural resources (plant extract) is more significant than conventional methods due to its low cost, dependability, non-toxicity, and environmental friendliness. Plant extract made from biomass wastes including roots, flowers, leaves, and fruit peels contains terpenoids, flavonoids, and alkaloids which are new secondary metabolites and work as stabilizing and reducing agents. SEM, UV- Visible, EDX, and XRD are some of the methods used to examine synthesized nanoparticles for shape, content, and size. Heavy metal removal is sensitive to changes in pH, adsorbent dose, and metal concentration at the outset. The results confirmed that the plant-mediated synthesized nanoparticles can be used as a systematic adsorbent for the elimination of heavy metals in wastewater.
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