Iron oxide nanoparticles immobilized PAN nanofibers:Synthesis and adsorption studies
Shabna Patela & Garudadhwaj Hotab*
Department of Chemistry, NIT Rourkela, Orissa, India, 769008
n this study we have prepared (Polyacrylonitrile) PAN/iron oxide composite nanofibers by three different
methods and have compared their removal efficiency for the adsorption of Congo red (CR) dye from aqueous solution.
In the first method, we have prepared electrospun PAN/iron(III) acetylacetonate composite nanofibers
by electrospinning followed by hydrothermal method for in situ growth of iron oxide nanoparticles on the
surface of PAN nanofibers. In the second method the electrospun PAN nanofibers were immersed into the iron
alkoxide solution followed by hydrolysis reaction at 800C. In the third method, PAN/iron oxide composite nanofibers
were prepared by blending the previously prepared iron oxide nanoparticles with PAN solution followed by electrospinning
technique. FE-SEM images clearly show the formation of iron oxide nanoparticles that are uniformly decorated on the surface of
PAN nanofibers after hydrothermal reactions. The average diameters of the nanoparticles are observed to be in the range of
30 to 120 nm. CR dye is used as a model organic pollutant for adsorption study. The adsorption isotherm, kinetic study and
thermodynamic study were carried out to elucidate the adsorption mechanism.
(More in RSC Adv., 2016, 6, 15402, DOI: 10.1039/c5ra20345g
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