Removal of organic pigment from environmental samples using magnetic nanoparticles functionalized with porphyrin

Col ors are the most widely consumed chemicals in different industries which always some colors enter in nature. The destruction and removal of organic pollutants in ways that are not harmful to the environment are important. Organic pollutants ca n be removed by many compounds such as photocatalys that porphyrin is one of the most important of them. In this study, rem oval of color pollutants has been investigated from environmental samples by magnetic nanoparticles functionalized with po rphyrin. Firstly, magnetic nanoparticles synthesized and functionalized by the NH2 groups, then porphyrin photocatalyst had been placed on the particles. After a three-step synthesis, under optimal conditions (temperature 20 °C, adsorbent 20 mg and abs orption time 5 minutes) remove of organic pigments and water- based pigments was determined by this nanoparticles. Under these optimum conditions, group of colors that can be used as an indicator and also water-base colors were tested.