Removal o f benzoic acid, p-ni tro phenol and resorcinol fro m aqueous solutions by modifi ed maghemite nano particles

Because of benzoic acid (BA ) and some of phenoli c compounds harmful effects, adsorptive removal of BA, p-nitro pheno l (PNP) and resorcinol from aqueous solutions was investigated in this study [۱-۴]. Here cetyltrimethylammonium br omide modified maghem ite nanopar ticles (CTAB-ƴ-Fe۲O۳) , as an ef ficient ads orbent, wa s used for removal of BA, PNP and resorc inol from water samples. Pollutants were entrapped on the surface of surf actant coated nanoparticle sorbents as in the SPE method. Maghemite nanoparticle s (ƴ-Fe۲O۳) were prepared by co-precipitation method and characterized by SEM, XRD and B ET measure ments [۵]. Then the surfaces of th e prepared maghemite nanoparticle s, were modified by C TAB cationic surfactan t [۶].

کلیدواژه ها:

Mag hemite nanoparticles ، C TAB ، Waste water samples ، Benzoic acid (BA) ، p-Nitrophenol (PN P) ، Resorcinol.