Abstract
Background:
Water contamination and its remediation are currently considered a major concern
worldwide. Design of effective methods for water purification is highly demanded for the adsorption
and removal of such pollutants.
Objective:
This study depicts the effectiveness of nickel oxide-copper oxide nanoparticles (NiO-CuO),
which can extract and remediate ferric ions, Fe(III), from aqueous solutions.
Methods:
The NiO-CuO nanoparticles were simply prepared by the co-precipitation method and then
used as adsorbent with respectable advantages of high uptake capacity and surface area.
Results:
Adsorption of Fe(III) onto NiO-CuO nanoparticles showed an uptake capacity of 85.86 mgg-1 at
pH 5.0. The obtained data from the carried-out experiment of Fe(III) adsorption onto NiO-CuO nanoparticles
were well suited to the Langmuir isotherm and pseudo-second-order kinetic models. Moreover,
different coexisting ions did not influence the adsorption of Fe(III) onto NiO-CuO nanoparticles. The
recommended methodology was implemented on the adsorption and removal of several environmental
water samples with high efficiency.
Conclusion:
The designed method displayed that NiO-CuO nanoparticles can be used as a promising
material for the adsorptive removal of heavy metals from water.