Effect of Calcination Temperature on (N, Fe) Doped TiO2 Nanoparticles

Siti Aida Ibrahim, Abdul Hadi Zainal Alam, Rosniza Hussin, Zakiah Kamdi, Mohamed Nasrul Mohamed Hatta, Ainun Rahmahwati Ainuddin, Muhamad Zaini Yunos

Abstract


TiO2 is one of the most promising photocatalysts that is widely used for environmental clean-up due to its ability to degrade organic pollutants in air or water in the presence of UV light irradiation. In this study, the sol-gel method followed by calcination process was employed to synthesize N, Fe doped TiO2 nanoparticles.  The effect of calcination temperature on the structural, morphology and optical properties of the as-prepared samples was analyzed. Titanium tetra isopropoxide (TTIP) was used as Ti precursor and urea and ferric nitrate nonahydrate were the employed precursors to obtain N and Fe, respectively.  X-ray diffraction pattern displayed a transformation of anatase structure to biphasic of anatase and rutile structure as the calcination temperature was increased from 300 to 700 °C. FESEM images indicated an agglomeration of particles with the grain size was estimated at 50-170 nm. UV-Vis analysis revealed that the increment of calcination temperature induced a red shift in the absorption spectra from 485 nm to 664 nm. Hence, the results indicate that N, Fe doped TiO2 is a highly potential visible-driven photocatalyst to degrade pollutants under the presence of visible light irradiation.

Keywords


TiO2; Sol-gel; Photocatalytic Activity; Optical Property

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Copyright (c) 2018 Journal of Science and Technology

ISSN : 2229-8460

e-ISSN : 2600-7924

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