A Good Material for Effectively Removing a Variety of Pollutants in Sewage: Single-Phase Cr2O3 Nanoparticles

Abstract

Simple and room temperature synthesis of single phased Cr2O3 nanoparticles was achieved by using Calotropis gigentea ethanolic leaves extract. The prepared NPs were exploited as potential material for water treatment applications to remove multiple natured contaminants which occur in water simultaneously and earlier required various multifold treatments for their effective removal. The adsorption studies conducted without involving any stringent experimental parameters resulted in considerable high removal rates for all the contaminants i.e. direct yellow 24 dye, bifenthrin, dioctyl phthalate and S. aureus microbes. The maximum adsorption occurs in just 15-20min at room temperature making the prepared NPs a good material for effective and multiple contaminants removal from polluted water.