Synthesis and application of surface-modified NiFe nanoparticles as a new magnetic nano adsorbent for the removal of nickel ions from aqueous solution | Zendy

Yan Liu | Zendy; Xiaoyi Shen | Zendy

Open Access

Synthesis and application of surface-modified NiFe nanoparticles as a new magnetic nano adsorbent for the removal of nickel ions from aqueous solution

Author(s) -

Yan Liu,

Xiaoyi Shen

Publication year - 2017

Publication title -

water science and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.406

H-Index - 137

eISSN - 1996-9732

pISSN - 0273-1223

DOI - 10.2166/wst.2017.453

Subject(s) - adsorption , freundlich equation , aqueous solution , thermogravimetric analysis , fourier transform infrared spectroscopy , langmuir , nanoparticle , nickel , materials science , diffusion , chemical engineering , langmuir adsorption model , inorganic chemistry , chemistry , nuclear chemistry , organic chemistry , nanotechnology , metallurgy , thermodynamics , physics , engineering

Surface-modified magnetic Ni 2.33 Fe alloy nanoparticles were prepared using a hydrothermal method. Thermogravimetric analysis (TG) and Fourier transform infrared spectroscopy (FTIR) tests demonstrated that the surface was successfully modified by sodium citrate. The surface-modified particles can be used for removing nickel ions from aqueous solution. The adsorption kinetics studies were performed and the pseudo-second-order kinetic model successfully described the kinetic data. The diffusion model indicated the adsorption was regulated by both surface and intraparticle diffusion processes. The Freundlich and Langmuir adsorption models were adopted for the mathematical description of adsorption equilibrium, and it was found that the experimental data fitted very well to the Freundlich model.

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