Adsorption study of Pb2+ ions on nanosized SnO2, synthesized by self-propagating combustion reaction

[摘要] Novel combustion synthetic route for the synthesis of nanosized SnO₂ is reported. X-ray, tap and powder densities of SnO₂ are calculated. Adsorption of Pb²⁺ ions on combustion derived nanosized SnO₂ is studied. The as synthesized SnO₂ and lead ions adsorbed SnO₂ are characterized by X-ray diffraction (XRD), scanning electron micrograph (SEM), and infrared spectroscopic (IR) techniques. The eluent is characterized by atomic absorption spectroscopy (AAS) and solution conductivity (SC) to know the reduction in the concentration and increase in conductance of lead solution after adsorption on the SnO₂ surface. The potential use of solid adsorbents for the adsorption of heavy metal pollutants is envisaged in the present work.

[学科分类] 材料工程

[关键词] SnO2;nanosized;Pb2+;adsorption;eluent;pollutant;adsorbent.