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Synthesis and Characterization of Bismuth and Tungsten Doped TiO2
Photocatalyst
Wan Nadiya Binti Wan Su
Supervisor: Dr. Mohd Al Amin Bin Muhamad Nor
Bachelor of Science (Chemical Sciences)
School of Fundamental Sciences
Titanium dioxide, TiO2 is a photocatalyst that used for dyes removal and for selfcleaning
application. In this study, undoped and doped (Bismuth and tungsten) TiO2
photocatalysts were prepared via sol-gel method. The effect of different dopant
towards the properties of TiO2 was examine in this study. Samples were calcined at
500 o C and characterized by X-Ray Diffraction (XRD), Fourier Transform Infrared
Spectroscopy (FT-IR), and Scanning Electron Microscope (SEM). XRD patterns showed
anatase phase and anatase-mixed phase were obtained for undoped sample, Bi-TiO2
and W-TiO2 doped sample. FT-IR spectrum showed the presence of Ti in each of the
samples in the range of wavelength 500-1000 cm -1 . SEM image showed the formation
of nanoparticles for all samples. As conclusion, addition of dopant may improve the
photocatalytic activity of photocatalyst.
464 | U M T U N D E R G R A D U A T E R E S E A R C H D A Y 2018