Abstract

• goethite) were synthesized by co-precipitation method. These iron oxides were characterized by using some modern techniques (XRD, SEM, EDXRF and FT IR). According to XRD data, eight Miller indices [ (111), (220), (311), (222), (400), (422), (511), (440)] of the magnetite samples were found. Three Miller indices [(130), (110), (200)] of the goethite sample were observed. SEM micrograph of magnetite and goethite samples indicated the porous nature of iron oxide samples. According to EDXRF data, the prepared iron oxides showed the presence of iron (100 %) and no other elements were present. According to FT IR data, the magnetite and goethite samples showed the presence of iron-metal oxide bonds. The bands at 894.9 cm-1 be possible due to the iron oxide for magnetite samples and the band located at 891.1 cm-1may be Fe-O groups for goethite sample. Application of magnetite and goethite iron oxide samples were carried out by using model solutions for wastewater treatment. Sorption capacity on magnetite and goethite were measured for contact time and effect of dosage. The efficiency of iron oxide samples for the removal of dyes in wastewater samples were also studied.