Adsorption of Co(II) ions from aqueous solutions using NiFe2O4 nanoparticles

Document Type: Original Article


1 Department of Environment, Hamadan Branch, Islamic Azad University, Hamadan, Iran

2 Young Researchers and Elite Club, Hamadan Branch, Islamic Azad University, Hamadan, Iran


In this study, NiFe2O4 nanoparticles (NiFe2O4 NPs) were prepared through co-precipitation method and subsequently used for the removal of Co(II) ions from aqueous solutions. The NiFe2O4 NPs were characterized by transmission electron microscopy (TEM), X-ray diffraction spectrometry (XRD), and Brunauer-Emmett-Teller (BET) surface area analysis. In batch tests, the effects of variables such as pH (2-10), adsorbent dose (0.006-0.08 g), contact time (0-90 minutes), and temperature (25-55 ◦C) on Co(II) ions removal were examined and optimized values were found to be 7, 0.02 g, 70 minutes, and 25 ◦C, respectively. In addition, the experimental data were fitted well to the Langmuir isotherm model and the maximum adsorption capacity was found to be 322.5 mg/g. Kinetic experiments were also conducted to determine the rate at which Co(II) ions are adsorbed onto the NiFe2O4 NPs. 


  1. Carmo Ramos S, Pedrosa Xavier A, Teodoro F, Cota Elias M, Jorge Goncalves F, Frederic Gil L, et al. Modeling mono- and multi-component adsorption of cobalt(II), copper(II), and nickel(II) metal ions from aqueous solution onto a new carboxylated sugarcane bagasse. Part I: Batch adsorption study. Industrial Crops and Products 2015; 74: 357-71.
  2. Fang F, Kong L, Huang J, Wu S, Zhang K, Wang X, et al. Removal of cobalt ions from aqueous solution by an amination graphene oxide nanocomposite. J Hazard Mater 2014; 270: 1-10.
  3. Nazari AM, Cox PW, Waters KE. Biosorption of copper, nickel and cobalt ions from dilute solutions using BSA-coated air bubbles. Journal of Water Process Engineering 2014; 3: 10-7.
  4. Negm NA, El Sheikh R, El-Farargy AF, Hefni Hassan H, Bekhit M. Treatment of industrial wastewater containing copper and cobalt ions using modified chitosan. Journal of Industrial and Engineering Chemistry 2015; 21: 526-34.
  5. Srivastava V, Sharma YC, Sillanpaa M. Application of nano-magnesso ferrite (n-MgFe2O4) for the removal of Co2+ ions from synthetic wastewater: Kinetic, equilibrium and thermodynamic studies. Applied Surface cience 2015; 338: 42-54.
  6. Ceglowski M, Schroeder G. Preparation of porous resin with Schiff base chelating groups for removal of heavy metal ions from aqueous solutions. Chemical Engineering Journal 2015; 263: 402-11.
  7. Zhu J, Baig SA, Sheng T, Lou Z, Wang Z, Xu X. Fe3O4 and MnO2 assembled on honeycomb briquette cinders (HBC) for arsenic removal from aqueous solutions. J Hazard Mater 2015; 286: 220-8.
  8. Jian M, Liu B, Zhang G, Liu R, Zhang X. Adsorptive removal of arsenic from aqueous solution by zeolitic imidazolate framework-8 (ZIF-8) nanoparticles. Colloids and Surfaces A: Physicochem Eng Aspects 2015; 465: 67-76.
  9. Arshadi M, Faraji AR, Amiri MJ. Modification of aluminum?silicate nanoparticles by melamine-based dendrimer l-cysteine methyl esters for adsorptive characteristic of Hg(II) ions from the synthetic and Persian Gulf water. Chemical Engineering Journal 2015; 266: 345-55.
  10. Sobhanardakani S, Zandipak R, Sahraei R. Removal of Janus Green dye from aqueous solutions using oxidized multi-walled carbon nanotubes. Toxicol Environ Chem 2013; 95(6): 909-18.
  11. Ahmad MA, Alrozi R. Removal of malachite green dye from aqueous solution using rambutan peel-based activated carbon: Equilibrium, kinetic and thermodynamic studies. Chemical Engineering Journal 2011; 171(2): 510-6.
  12. Ghaedi M, Mosallanejad N. Study of competitive adsorption of malachite green and sunset yellow dyes on cadmium hydroxide nanowires loaded on activated carbon. Journal of Industrial and Engineering Chemistry 2014; 20(3): 1085-96.
  13. Sun Q, Hu X, Zheng S, Sun Z, Liu S, Li H. Influence of calcination temperature on the structural, adsorption and photocatalytic properties of TiO2 nanoparticles supported on natural zeolite. Powder Technology 2015; 274: 88-97.
  14. Wan Ngah WS, Teong LC, Hanafiah MA. Adsorption of dyes and heavy metal ions by chitosan composites: A review. Carbohydrate Polymers 2011; 83(4): 1446-56.
  15. Yu L, Luo YM. The adsorption mechanism of anionic and cationic dyes by Jerusalem artichoke stalk-based mesoporous activated carbon. Journal of Environmental Chemical Engineering 2014; 2(1):
  16. -9.
  17. Teymourian H, Salimi A, Khezrian S. Fe3O4 magnetic nanoparticles/reduced graphene oxide nanosheets as a novel electrochemical and bioeletrochemical sensing platform. Biosensors and Bioelectronics 2013; 49: 1-8.
  18. Khosravi I, Eftekhar M. Characterization and evaluation catalytic efficiency of NiFe2O4 nano spinel in removal of reactive dye from aqueous solution. Powder Technology 2013; 250: 147-53.
  19. Patil JY, Nadargi DY, Gurav JL, Mulla IS, Suryavanshi SS. Synthesis of glycine combusted NiFe2O4 spinel ferrite: A highly versatile gas sensor. Materials Letters 2014; 124: 144-7.
  20. Zandipak R, Sobhanardakani S. Synthesis of NiFe2O4 nanoparticles for removal of anionic dyes from aqueous solution. Desalination and Water Treatment 2016; 57: 24-11348.
  21. Wang XS, Zhu L, Lu HJ. Surface chemical properties and adsorption of Cu (II) on nanoscale magnetite in aqueous solutions. Desalination 2011; 276(1-3): 154-60.
  22. Brunauer S, Emmett PH, Teller E. Adsorption of Gases in Multimolecular Layers. J Am Chem Soc 1938; 60(2): 309-19.
  23. Deravanesiyan M, Beheshti M, Malekpour A. Alumina nanoparticles immobilization onto the NaX zeolite and the removal of Cr (III) and Co (II) ions from aqueous solutions. Journal of Industrial and Engineering Chemistry 2015; 21: 580-6.
  24. Langmuir L. The adsorption of gases on plane surfaces of glass, mica and platinum. J Am Chem Soc 1918; 40(9): 1361-403.
  25. Freundlich H, Heller W. The Adsorption of cis- and trans-Azobenzene. J Am Chem Soc 1939; 61(8): 2228-30.
  26. Vilvanathan S, Shanthakumar S. Biosorption of Co(II) ions from aqueous solution using Chrysanthemum indicum: Kinetics, equilibrium and thermodynamics. Process Safety and Environmental Protection 2015; 96: 98-110.
  27. Sulaymon AH, Abid BA, Al-Najar JA. Removal of lead copper chromium and cobalt ions onto granular activated carbon in batch and fixed-bed adsorbers. Chemical Engineering Journal 2009; 155(3): 647-53.
  28. Azizian S. Kinetic models of sorption: a theoretical analysis. J Colloid Interface Sci 2004; 276(1): 47-52.