Green engineering of chitosan-bioactive glass for efficient removal of Cr(VI) and Cu(II) ions from aqueous systems.

In India, water pollution has become a severe environmental issue that affects millions of individuals as well as ecosystems across the country. The current research article deals with removing the heavy metal hexavalent chromium and bivalent copper ions from aqueous wastewater using an environmentally friendly and low-cost binary mixture of chitosan (CS), bioactive glass (BAG). The new bioactive glass is prepared by using biosilica extracted from cow dung ash, calcium oxide extracted from eggshell ash, and phosphorus pentoxide.

Sustainable heavy metal (Cr(VI) ion) remediation: Ternary blend approach with chitosan, carboxymethyl cellulose, and bioactive glass.

Heavy metal pollution poses a significant environmental challenge to worldwide, especially in developing countries. This study focuses on eliminating the heavy metal chromium (VI) ion from wastewater, employing an eco-friendly and economical ternary blend composed of Chitosan (CS), Carboxymethyl cellulose (CMC), and bioactive glass (BAG). The innovative bioactive glass is crafted from biosilica extracted from biowaste of cow dung ash, calcium oxide from eggshell ash, and phosphorus pentoxide.

Swelling behavior of poly(N-cyclohexylacrylamide-co-acrylamide/AMPSNa) gold nanocomposite hydrogels.

In this study, poly(N-cyclohexylacrylamide-co-acrylamide/sodium 2-acrylamido-2-methyl propanesulfonate) gold nanocomposite hydrogels were synthesized by free-radical copolymerization in methanol/water at 60 °C. The gold nanocomposites hydrogels were prepared via in situ polymerization using gold nanoparticle. The weight percentage of N-cyclohexylacrylamide (NCA) and acrylamide (AM) monomers was fixed 50:50 and the weight of sodium 2-acrylamido-2-methylpropanesulfonate (AMPSNa) was varied from 0.