Roohan Rakhshaee - Department of Chemistry, Faculty of science, University of Guilan, P.O.Box: ۴۱۳۳۵-۱۹۱۴۱, Rasht, Iran

Fe0nano-particles (FNPs) were stabilized by the cross-linked pectin with succinic acid(CPS)to remove Acid green 3 (AG 3) as an anionic and azo dye from aqueous solutions. Transmission electron microscopy (TEM) showed that the diameter of FNPs-CPS was not less than 5 nm and about 93% of them were between 10 –46 nm. About 18% ofFNPs-CPSwas about 46 nm in diameter. X-ray diffraction (XRD) patternsdid not show a marked change in the crystal structure of FNPs, whereas the intensity of the peaks corresponding to the surface functional groups isreduced with using CPS. The removal percent of AG 3 was determined 88.3byFNPs-CPSforthe dye initial concentration of 200 ppm, atthe determined conditions.Thecomparison between the resultsofpotittnetitonirtntoitnetand pH studywith the removalefficiencyconfirmed that the–COOH ofthecross-linked pectinand its adsorption ability had the more effective rule than theFNPsaverage sizeand its reduction abilityto removeAG 3.

Acid green 3,Succinic acid, Stabilizer agents,Fe0nano-particles