Characterization of reactive amphiphilic montmorillonite nanogels and its application for removal of toxic cationic dye and heavy metals water pollutants

Characterization of reactive amphiphilic montmorillonite nanogels and its application for removal of toxic cationic dye and heavy metals water pollutants

The present work aims to reduce the water surface tension using dispersed organophilic clay minerals toincrease the adsorption water pollutants (organic and inorganic) into the clay galleries. Therefore,sodium montmorillonite (Na-MMT) was functionalized with amphphiles based on crosslinked nanogelpolymers of N-isopropylacrylamide (NIPAm), sodium 2-acrylamido-2-methylpropane sulfonate (Na-AMPS), acrylamide (AAm) and acrylamidopropyl)trimethylammonium chloride solution (APTAC) usingsurfactant free technique. The chemical interactions between nanogels and Na-MMT and their chemicalstructure were confirmed by FTIR analysis. The intercalation and exfoliation of Na-MMT were confirmedby wide-angle X-ray diffraction. The morphology of Na-MMT nanogel composites was investigated byTEM analysis. The adsorption capacities of the prepared Na-MMT nanogels for methylene blue dye,cobalt and nickel cations from water were investigated. The data indicated that the Na-MMT nanogelsreduced the surface tension of water and efficiently remove dye and metal ions from water.

The present work aims to reduce the water surface tension using dispersed organophilic clay minerals toincrease the adsorption water pollutants (organic and inorganic) into the clay galleries. Therefore,sodium montmorillonite (Na-MMT) was functionalized with amphphiles based on crosslinked nanogelpolymers of N-isopropylacrylamide (NIPAm), sodium 2-acrylamido-2-methylpropane sulfonate (Na-AMPS), acrylamide (AAm) and acrylamidopropyl)trimethylammonium chloride solution (APTAC) usingsurfactant free technique. The chemical interactions between nanogels and Na-MMT and their chemicalstructure were confirmed by FTIR analysis. The intercalation and exfoliation of Na-MMT were confirmedby wide-angle X-ray diffraction. The morphology of Na-MMT nanogel composites was investigated byTEM analysis. The adsorption capacities of the prepared Na-MMT nanogels for methylene blue dye,cobalt and nickel cations from water were investigated. The data indicated that the Na-MMT nanogelsreduced the surface tension of water and efficiently remove dye and metal ions from water.