مينا عطائي فر

In this study, a photocatalytic process using graphite carbon nitride (g-C3N4) as a photocatalyst was used to destroy colored pollutants from wastewater. In the first part of this research paper, graphite carbon nitride was synthesized by hydrothermal method And to increase the speed of reaction and quick removal of pigments, it was doped with FeCl3.6H2O and FeCl2.4H2O, which is a new magnetic photocatalyst with an effective, cheap and simple process. Synthesized g-C3N4 nanocomposite as a new magnetic photocatalyst for the removal of methylene blue and damine B dyes, environmental water samples were investigated and the surface characteristics of the composite were eva‎luated using FT-IR SEM, FE- and XRD analyses. The XRD and FT-IR results show that FeCl2.4H2O and FeCl3.6H2O on pure g-C3N4 nanoparticles follow a specific mechanism. . The magnetized g-C3N4 composite has a high surface area. The optimal conditions for photocatalytic reaction were determined. Different percentages of FeCl2.4H2O and FeCl3.6H2O were doped with g-C3N4 and tested Among them, the nanocomposite with the best result for removing methylene blue and redamine B dyes was used as the optimized amount. Finally, to investigate the scalability and commercialization for industrial purposes, the ability to recycle and reuse this photocatalyst, The amount of adsorption and desorption was repeated up to 4 times, which shows that the design of the photocatalyst can be used up to 3 times with a partial reduction of the absorption capacity. Also in this work we showed that the photoresponse of g-C3N4 can be significantly enhanced by sensitization with eosin EY (Y). As an alternative strategy for efficient use of solar energy, color sensitization is a reliable method to develop optical absorption in the visible region Eosin Y color is one of these colors and is used for this purpose.

كربن نيتريد گرافيتي , ائوزين Y , تخريب رنگ هاي آلي , اكسيداسيون

graphite carbon nitride , Eosin Y , degradation of organic dyes , Oxidation

Mina Ataeifar

Dr. Hossein Ghaffoori