Pollutants with both organic and inorganic nature have turned into serious concerns worldwide for the environmental sustainability, especially in water systems. A major challenge is the lack of simple, effective and low-cost materials and methods for the decontamination of polluted water. In this presentation, a novel silica composite nano-adsorbent with NiFe structure will be discussed. The synthesis involved carbonation decomposition of sodium silicate followed by a hydrothermal method. The structures and properties were characterized by an array of techniques. The magnetic NiFe nanoparticles were embedded into silica particles. The composites were utilized for removing pollutants from contaminated water. The effects of pH, pollutant concentration, and temperature on the removal efficiency were investigated. The thermodynamic parameters, isotherm models, adsorption kinetics and intraparticle diffusions were determined. The nanocomposite adsorbent not only enables efficient adsorption of the pollutants but also ready separation and recycling from water.

Synthesis, characterization and application of a new silica composite nano-adsorbent with NiFe magnetic nanoparticles embedded structure

256th National Meeting (2018)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.