Application of Magnetic Nano Adsorbent Fe2O3 for Removal of Hazardous Ponceau-S Dye from Aqueous Solution

The photodegradation of ponceau-s dye was investigated using uv radiation in presence of nanosized fe2o3.removal efficiency of ponceau-s was sensitive to the operational parameters such as dye concentration, catalyst dose, ph, contact time, toc and cod. the photocatalytic treatment of red colored ponceau-s dye by magnetic nano semiconductor (fe2o3)is an effective, economic and faster mode. the kinetics and isotherm studies were carried out. a simple kinetics model was proposed which confirmed pseudo second order reaction. langmuir isotherm fitted this study. the optimum conditions for the degradation of the dye were initial concentration 50 mgl^-1, ph 8, contact time 20 minutes and catalyst dose 5 gl^-1 of fe2o3.the semiconductor photocatalyst was also carried out for sem and xrd analysis which confirms the utilized semiconductor was nanosized.