Journal ArticleUnknown
Silver Nanoparticle Entrapped Calcium‐Alginate Beads for Fe(II) Removal via Adsorption
Author Affiliations
University of Dhaka, Tribhuvan University
Published InMacromolecular Symposia
Year2016
Citations32
Abstract
Summary Silver nanoparticle entrapped calcium‐alginate beads (AgNP‐CAB) were successfully synthesized as adsorbent for effective removal of Fe(II) ions from aqueous solution. The adsorbent was characterized by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), X‐ray diffraction (XRD) and thermogravimetric analysis (TGA). Batch adsorption experiments were used to determine the adsorption capacity. The influence of various factors (such as temperature, pH, adsorbent dosage and contact time) on adsorption behaviour was investigated. The adsorbent thus developed showed higher uptake at pH 4, and adsorption the capacity decreased with increasing temperature. The kinetic results for the adsorption process were interpreted using pseudo‐first order and pseudo‐second order rate equations, as well as Elovich and intra‐particle diffusion models. A good correlation with the pseudo‐second…
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Fields & Keywords
Physical SciencesEnvironmental ScienceWater Science and TechnologyAdsorption and biosorption for pollutant removalNanomaterials for catalytic reactionsIron oxide chemistry and applicationsNuclear chemistryChemical engineeringInorganic chemistryOrganic chemistryNanotechnologyComposite materialPhysical chemistry