Premium
Investigation of α‐iron oxide‐coated polymeric nanocomposites capacity for efficient heavy metal removal from aqueous solution
Author(s) -
Fallah TAlooki Elahe,
Ghorbani Mohsen,
Ghoreyshi Ali Asghar
Publication year - 2015
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.24162
Subject(s) - adsorption , aqueous solution , materials science , freundlich equation , nanocomposite , metal ions in aqueous solution , sorption , copper , langmuir , exothermic reaction , langmuir adsorption model , chemical engineering , oxide , inorganic chemistry , metal , chemistry , composite material , organic chemistry , metallurgy , engineering
In the present study, PS@α‐Fe 2 O 3 nanocomposites were prepared by chemical microemulsion polymerization approach and the ability of magnetic beads to remove Cu(II) ions from aqueous solutions in a batch media was investigated. Various physico‐chemical parameters such as pH, initial metal ion concentration, temperature, and equilibrium contact time were also studied. Adsorption mechanism of Cu 2+ ions onto magnetic polymeric adsorbents has been investigated using Langmuir, Freundlich, Sips and Redlich–Petersen isotherms. The results demonstrated that the PS@α‐Fe 2 O 3 nanocomposite is an effective adsorbent for Cu 2+ ions removal. The Sips adsorption isotherm model ( R 2 > 0.99) was more in consistence with the adsorption isotherm data of Cu(II) ions compared to other models and the maximum adsorbed amount of copper was 34.25 mg/g. The adsorption kinetics well fitted to a pseudo second‐order kinetic model. The thermodynamic parameters (Δ H °, Δ S °, and Δ G °) were calculated from the temperature dependent sorption isotherms, and the results suggested that copper adsorption was a spontaneous and exothermic process. POLYM. ENG. SCI., 55:2735–2742, 2015. © 2015 Society of Plastics Engineers