Nano Sized Fe Doped Strontium Titanate For Photocatalytic Degradation Of Dibutyl Phthalate Under Visible Light

¹Inorganic Chemistry Department, National Research Centre, El Bohouth Street Dokki, Cairo, P.O. Box12622, Egypt

²Water Pollution Control Department, National Research Center, El Bohouth Street, Dokki, Cairo, P.O. Box12622, Egypt

Adv. Mater. Lett., 2016, 7 (6), pp 467-471

DOI: 10.5185/amlett.2016.6146

Publication Date (Web): May 30, 2016

Copyright © IAAM-VBRI Press

E-mail: omaytarek73@yahoo.com

Abstract

Nano-sized SrTiO₃ and SrTi_0.7Fe_0.3O₃ photocatalysts were prepared by the complex route precursor method. The prepared photocatalysts were characterized by XRD, TEM, XPS and diffuse reflectance. The effect of iron doping on the structural properties and the photocatalytic activity was studied. All the prepared samples have single cubic perovskite structure. It was found that doping of SrTiO₃ with Fe shifted the peak positions toward higher 2θ value, decreased both the cubic lattice parameter and the unit cell volume, decreased the average crystallite size of SrTiO₃ from 53 nm to 35 nm and shifted the absorption to the visible light range (red shift). The photocatalytic degradation activity of 30 mole % Fe doped SrTiO₃ was significantly improved the degradation of dibutyl phthalate in 90 minutes under visible light irradiation by 4 times higher than SrTiO₃. 

Keywords

SrTi_0.7Fe_0.3O₃, wastewater treatment, photocatalysts, photodegradation