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

Journal of Applied Chemical Research

مقاله 1، دوره 6، شماره 3، مهر 2012، صفحه 7-21   

نوع مقاله: Research Paper

نویسندگان

B. N. Patil؛ D. S. Shirsath؛ Y. V. Marathe؛ V. S. Shrivastava^*

چکیده

The photodegradation of Ponceau-S dye was investigated using UV radiation in presence of nanosized Fe2 O3 .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 (Fe2 O3 )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 Fe2 O3 .The semiconductor photocatalyst was also carried out for SEM and XRD analysis which confirms the utilized semiconductor was nanosized.

کلیدواژه‌ها

Ponceau-S؛ Fe2O3؛ Semiconductor photocatalysis؛ SEM؛ XRD؛ Kinetics