Modified nano particles method for fluorescent dye removal from aqueous samples

This work reports the synthesis of iron oxide (Fe 3 O 4 ) nanocomposites (NCs) such as, Fe 3 O 4 /GO using CO-sedimentation method. The synthesized NCs were characterized by X-ray diffraction (XRD),). Through experiments and measurements, it was found that the compound (Fe3o4-GO) achieved the highest extraction rates of cyclic hydrocarbons from aqueous solutions, with a percentage of pyrene extracting 96% and fluorine 94%. Then the detection limit (LOD) and The quantitative limit (LOQ) of The hydroxy PAHs were determined using room temperature fluorescence spectroscopy technique and it was found (95%Graphene oxide, 85%Tannic acid, 53%(hummic acid). Then The synthesized nanoparticle was used to extract cyclic PAHs from an aqueous solution and The removal percentage were (96% pyrene, 94% fluorene). The results obtained showed the high value of the removal ratio that indicates of the tremendous power of the synthesized nanoparticles on removal of PAH.