Volume No. 11 Issue No.: 1 Page No.: 52-59 July-September 2016

 

ADSORPTIVE REMOVAL OF ARSENIC (III) IONS USING IRON OXIDE NANOPARTICLES IN THE PRESENCE OF MAGNETIC FIELD

 

Uzma Nadeem

Analytical Research Laboratory, Department of Chemistry, University of Delhi, Delhi (INDIA)

 

Received on : March 10, 2016

 

ABSTRACT

 

In present work, solid state synthesis approach was used to prepare magnetic ferrofluid loaded with maghemite nanoparticles and mono-crystalline iron oxide nanoparticles based ferrofluid was used as possible adsorbent for the removal of As (III) ions. This magnetic material was applied to study the adsorptive removal of As (III) ions in presence of applied magnetic field. Studies revealed that application of magnetic field results in remarkably increased adsorption efficiency. In order to study the influence of magnetic field environment, the work has been done in absence and presence of magnetic field. The iron oxide nanoparticles were characterized by relevant analytical techniques. The effect of initial pH, dose, agitation time and initial metal concentration on the adsorption process were investigated. The adsorptions of As (III) ions were found to be strongly dependent on pH of the initial metal solution. The experimental data were analysed by the Langmuir and Freundlich isotherm models. The parameters of Pseudo-first order and Pseudo-second order kinetics have also been investigated and pseudo-second order equation indicates good applicability with high correlation coefficients for entire range of initial concentration of As (III) ions.

 

Keywords : Magnetic, Nanoparticle, Iron-oxide, Arsenic(III), Adsorption

 

 

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