PHOTODEGRADATION OF TOXIC ORGANIC POLLUTANTS USING SUNLIGHT OVER IRON LOADED TITANIA
Author Name: *P. Madoomitha, **M.Sofiya Joyce, ***M. Esther Leena Preethi
Volume: 01 & Issue:
Country: INDIA
DOI NO.: 08.2020-45839132, DOI Link: http://www.doi-ds.org/doilink/08.2020-45839132/
Affiliation:
- PG Department of Physics, Women’s Christian College, Chennai-600 006, Tamilnadu, India
- PG Department of Physics, Women’s Christian College, Chennai-600 006, Tamilnadu, India
- Asst. Professor, Department of Chemistry, Women’s Christian College, Chennai-600 006, Tamilnadu, India E-Mail Id:e.preethi.rajkumar@gmail.com
ABSTRACT
The Fe2O3/TiO2 catalyst was synthesized via wet impregnation process with titanium dioxide and iron sulphate as precursors. The synthesized Fe2O3/TiO2 catalyst were characterized by X – ray powder diffraction (XRD), vibrating sample magnetometer (VSM) and UV – Vis diffuse reflectance spectroscopy (DRS) from which the crystallinity, oxidation state of the iron, the chemical environment of the iron in the catalyst can be known. The photocatalytic activity of the Fe2O3/TiO2 catalyst was evaluated by degradation of toxic organic pollutant methylene blue. The results indicated that, with the doping of Fe on titania the surface area has increased and the forbidden energy gap width is decreased as observed from VSM and DRS UV. The VSM clearly showed that the doped iron is in the form of super paramagnetic iron oxide nano particles. By UV –Vis spectroscopy analysis it was observed that 0.05 g of Fe2O3/TiO2 had the best photocatalytic activity for the degradation of methylene blue.
Key words: Wet impregnation process, Fe2O3/TiO2, photocatalysis, degradation, dyes.
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