UTHM Conference Portal, International Conference on Mechanical and Manufacturing Engineering (ICME2015)

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EFFECT OF FE ADDITION TOWARDS TIO2 FORMATION FOR PHOTOCATALYTIC ACTIVITY
Khoo Ming Teck, Siti Aida Ibrahim

Last modified: 2015-10-18

Abstract


Titanium dioxide (TiO2) is one of the basic ceramic material which has found involves in variety of application in industry and in our daily life. The size of nano TiO2 proves has great potential of improvement in physical, optical, biological and electrical properties. The main purpose of this work is to investigate the effect of Fe incorporated TiO2 with Fe amount varied from 0.5 to 1.5 mol %. In this work, Fe-TiO2 nano powder was synthesized via sol gel method and subsequently followed by calcination process at 500 oC for 2 hours.  The as-prepared samples were characterized by x-ray diffraction (XRD), energy dispersive x-ray spectroscopy (EDX), field emission scanning electron microscope (FESEM) and ultraviolet-visible spectrophotometer (UV-Vis). The results obtained from XRD showed the presence of anatase phase in all samples.  FESEM images revealed that all samples were agglomerated with irregular shape while EDX  analysis confirmed  the presence of titanium, oxygen and iron in the samples. UV-Vis results exihibited that the wavelength threshold was shifted to 566 nm as the amount of Fe was increased to 1.5 mol% Fe. The band gap energy of Fe-TiO2 was ranging from 2.6 eV to 2.9 eV indicating  that Fe-TiO2 has high potential for visible response photocatalyst.

Keywords


TiO2 synthesi;Sol-gel method; photocatalytic activity