Iron removal from aqueous solution by alumina nanoparticles coated with polyaniline
Journal of Health in the Field,
,
27 بهمن 2017
چکیده
Background and Aims: In view of water crisis, effective prevention of water resources contamination is increasingly important. The presence of heavy metals in drinking water at concentrations greater than acceptable limits may result in various adverse health effects. The present study was conducted to evaluate the feasibility of alumina nanoparticles coated with polyaniline for iron removal from aqueous solutions.Materials and Methods: The direct synthesis method was used to cover the polyaniline film on alumina nanoparticles. Batch adsorption studies were performed as a function of contact time, temperature, adsorbent mass and pH. The adsorption isotherms at iron concentrations ranging from 10 to 150 mg/L as well as the reaction kinetics were also investigated.
Results: The maximum efficiency of iron removal was found at pH 3, 24 ºC and 120 min contact time. The maximum sorption capacity of coated nano-alumina for Fe(II) removal was also found to be 45.66 mg g-1 at 0.1g of adsorbent mass.
Conclusion: Results from this study demonstrated the potential utility of alumina nanoparticles coated with polyaniline showing 83% adsorption ability for iron removal from aqueous solutions.
Key words: Alumina nanoparticles, Polyaniline, Adsorption, Iron ion.
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